In-Situ Bioremediation Demonstration of Coal-Based Acid Mine Drainage. Tide Mine Site Indiana County, Pennsylvania

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "In-Situ Bioremediation Demonstration of Coal-Based Acid Mine Drainage. Tide Mine Site Indiana County, Pennsylvania"

Transcription

1 In-Situ Bioremediation Demonstration of Coal-Based Acid Mine Drainage Tide Mine Site Indiana County, Pennsylvania Presented to: 26 th West Virginia Surface Mine Drainage Task Force Symposium Kelly S. Houston ARCADIS G&M, Inc. 20 April 2005

2 AMD Chemistry Initiation Reaction: FeS 2(s) + H 2 O O 2 Fe SO H + Propagation Reactions: Fe O 2 + H H 2 O + Fe Fe 3+ + FeS 2(s) + 8 H 2 O 15 Fe SO H + (Singer & Stumm, 1970) In-situ treatment can eliminate the causative agents of AMD 2

3 Breaking the AMD Triangle Provide an alternative sink for oxygen and ferric iron (e.g., a carbon source) Oxidation of the carbon source generates carbon dioxide/alkalinity Eliminating/minimizing water flushing - not required Water Oxygen/Ferric Iron Sulfide 3

4 Coal spoil pile IW-4 Tide Mine Schematic IW-3 IW-2 IW-1 Flow to Yellow Creek: 90 gpm ph = PPM acidity No alkalinity Discharge Tunnel A Yellow Creek 125 acres of unsaturated mine 8 acres of saturated mine 4

5 Demonstration Project Plan 3 months of recirculation system operation with caustic and molasses injection to affect net change in biogeochemistry Bromide tracer study to characterize mine pool hydraulics Carbon dioxide gas injection to alter mine atmosphere Additional 3 months of passive methanol injection to demonstrate sustainability of in-situ treatment Fenced enclosure photo of recirc system 5

6 Bromide Tracer Test to Evaluate Mine Pool Hydraulics Measured Predicted, CSTR First Moment Analysis t = (t i C C i i ) = 18 days Bromide (mg/l) C = C o - t t e CSTR Model Analysis C 1 R LN = - (t) t R = 18 days C o t R /14/04 9/28/04 10/12/04 10/26/04 11/9/04 11/23/04 6

7 Elevated TOC Results in Sulfate Reducing Conditions Sulfate TOC Sulfide Current Amount of Sulfate Reduction Sulfate and TOC (mg/l) Sulfide (mg/l) First Molasses Injection 0 June-04 August-04 October-04 December-04 February

8 Metals Performance Monitoring Data Ferrous Fe Ferric Fe Ferrous Iron (mg/l) Aluminum, Ferric Iron, Manganse (mg/l) 0 June-04 August-04 October-04 December-04 February-05 0 Aluminum concentrations decreased greater than 50% during treatment function of ph 8

9 Continuing Sources of Iron in Mine Workings Reductive dissolution of solid-phase ferric hydroxide in the saturated portion of the mine workings Controlled through FeS precipitation and maintaining sulfate reduction in the mine pool Saturated portion accounts for approximately 6% of mine workings AMD-impacted water from the unsaturated portions of the mine workings Gas phase oxygen provides continuous source of AMD causative agents (i.e., dissolved oxygen and ferric iron) Requires gas phase treatment for AMD prevention or continuous liquid phase treatment for control Unsaturated portion accounts for approximately 94% of mine workings 9

10 Carbonate Alkalinity Is Now Dominant In Previously Acidic Mine Pool 400 Alkalinity ORP ph ORP (mv), Alkalinity (mg/l) ph June-04 August-04 October-04 December-04 February-05 10

11 Re-Oxidation of Observed FeS? In-Situ Treatment: FeS + 2O 2 FeSO 4 + no acidity Natural Aerobic State: FeS O 2 + H 2 O FeSO 4 + H 2 SO 4 At the same operating re-dox state, oxidation of ferrous sulfides will not generate acidity in contrast with pyritic sulfides. Consistent with this expectation, alkalinity is observed from Tide Mine during the treatment period after washout of the NaOH neutralization effect 11

12 Carbon Dioxide Injection - Why Control the Gas Phase? Oxygen Molar Balance Pyrite oxidation stoichiometry indicates O 2 :SO 4 is 2:1 Oxygen-saturated water holds 8 ppm or 0.25 mm O 2 Assuming full conversion, 0.25 mm of O 2 creates mm SO 4 Tide mine water has 8 mm sulfate Therefore, at a maximum, 1.5% of the sulfate produced by the mine is generated by aqueous phase oxygen 98.5% of the sulfate (and acidity) is being generated by gas phase molecular oxygen With O 2 consumed by AMD reactions, resulting gas is buoyant maintaining 5% CO 2 through direct injection or biological activity generates a dense anaerobic blanket 12

13 CO 2 addition to the mine atmosphere broke the Oxygen supply lines 25 Carbon Dioxide Injection Period 20 Oxygen, Carbon Dioxide (% ) Oxygen Carbon Dioxide 5 0 June-04 August-04 October-04 December-04 February-05 13

14 Results Tide Mine project demonstrated the efficacy of insitu treatment proof of concept No dissolved oxygen in the mine pool or ferric iron in the mine pool Sustained increased ph in the mine pool, continued alkalinity detection Decreasing overall iron concentrations, reduced aluminum concentration Gas exchange occurs over large footprint of unsaturated mine workings; therefore, sustained CO 2 injection required for gas phase control at Tide Mine 14

15 How Does In-Situ Treatment Fit with the Big Picture? Economics of prevention vs. collection and treatment System-wide application of in-situ technology to stop or reduce AMD, minimize risk with blowout or mine failure Low cost O&M system implemented insitu Sludge settling occurs in mine workings Use of local agricultural products and waste streams Compatible with passive polishing systems 15

The formation of polluted mine water

The formation of polluted mine water The formation of polluted mine water Abandoned Mine Drainage How it happens How we can fix it Bruce Golden Western PA Coalition for Abandoned Mine Reclamation What we ll cover Brief Discussion about Mining

More information

Appendix B: Water Treatment Scenarios from AMD Treat

Appendix B: Water Treatment Scenarios from AMD Treat Appendix B: Water Treatment Scenarios from AMD Treat 103 of 104 Jeddo Tunnel Abandoned Mine Drainage Passive vs. Active Treatment Cost Estimates Provided by Office of Surface Mining AMD Treat Software

More information

ENVIRONMENTAL MANAGEMENT: CLEAN WATER RESEARCH AS RELATED TO ACID MINE DRAINAGE

ENVIRONMENTAL MANAGEMENT: CLEAN WATER RESEARCH AS RELATED TO ACID MINE DRAINAGE ENVIRONMENTAL MANAGEMENT: CLEAN WATER RESEARCH AS RELATED TO ACID MINE DRAINAGE LESSON PLAN CREATED BY: Todd Mills (Grades 9 12) Lois Morris (Grades 6-8) Terry Rostcheck (Grades 6 8) Susan Tegi (Grades

More information

Removing Heavy Metals from Wastewater

Removing Heavy Metals from Wastewater Removing Heavy Metals from Wastewater Engineering Research Center Report David M. Ayres Allen P. Davis Paul M. Gietka August 1994 1 2 Removing Heavy Metals From Wastewater Introduction This manual provides

More information

Trace metal concentrations in seeps and springs discharging from acid producing rocks at road cuts in Tennessee

Trace metal concentrations in seeps and springs discharging from acid producing rocks at road cuts in Tennessee Trace metal concentrations in seeps and springs discharging from acid producing rocks at road cuts in Tennessee Michael Bradley, Tom Byl, Scott Worland U.S. Geological Survey in cooperation with Tennessee

More information

Presented by Paul Krauth Utah DEQ. Salt Lake Countywide Watershed Symposium October 28-29, 2008

Presented by Paul Krauth Utah DEQ. Salt Lake Countywide Watershed Symposium October 28-29, 2008 Basic Nutrient Removal from Water Beta Edition Presented by Paul Krauth Utah DEQ Salt Lake Countywide Watershed Symposium October 28-29, 2008 Presentation Outline Salt Lake County waters / 303(d) listings

More information

Water remediation: Passive Treatment Technologies

Water remediation: Passive Treatment Technologies Presenter: Jacques Meyer Project design: Adrian Haagner, Piet Smit & Jacques Meyer Water remediation: Passive Treatment Technologies Using a sub-surface flow wetland on a rehabilitated decommissioned coal

More information

Single Process Arsenic and Antimony Removal Using Coagulation and Microfiltration

Single Process Arsenic and Antimony Removal Using Coagulation and Microfiltration Single Process Arsenic and Antimony Removal Using Coagulation and Microfiltration Presented by: Joe R. Tamburini, PE H.C. Liang, PhD Sam J. Billin, PE October 18, 2010 Tailings and Mine Waste 10 Outline

More information

CO2 applications. for drinking water production, process water treatment and waste water treatment

CO2 applications. for drinking water production, process water treatment and waste water treatment CO2 applications for drinking water production, process water treatment and waste water treatment Dr. Dr. Hermans Hermans 03.2013 11.2009 Carbon dioxide in water is -a natural food additive, non poisonous

More information

WISCONSIN WASTEWATER OPERATORS ASSOCIATION

WISCONSIN WASTEWATER OPERATORS ASSOCIATION Integrity. People. Knowledge. WISCONSIN WASTEWATER OPERATORS ASSOCIATION ANNUAL CONFERENCE GREEN BAY Resources. MEETING LOW LEVEL PHOSPHORUS LIMITS BY CHEMICAL ADDITION WHAT IS PHOSPHORUS Atomic # 15 Electron

More information

CIBO Focus Group Meeting. Biological Treatment for Power Generation Wastewater

CIBO Focus Group Meeting. Biological Treatment for Power Generation Wastewater CIBO Focus Group Meeting Biological Treatment for Power Generation Wastewater June 11, 2013 Outline New ELGs for Fossil Fuel Power Generation Biological Treatment Fundamentals Aerobic Treatment Ammonia,

More information

Bioremediation: Environmental. Groundwater remediation. Bioremediation technologies 1 / 5

Bioremediation: Environmental. Groundwater remediation. Bioremediation technologies 1 / 5 : Environmental Groundwater Remediation Robert Sherrill, C: 512-470-8710, robert.sherrill@sageenvironmental.com October 2012. ALL RIGHTS RESERVED. Revised Nov. 12, 2012 Background: or biodegradation is

More information

Charles A. Cravotta III Keith B. C. Brady Michael W. Smith Richard L. Beam 2

Charles A. Cravotta III Keith B. C. Brady Michael W. Smith Richard L. Beam 2 EFFECTIVENESS OF THE ADDITION OF ALKALINE MATERIALS AT SURFACE COAL MINES IN PREVENTING OR ABATING ACID MINE DRAINAGE: PART 1. GEOCHEMICAL CONSIDERATIONS 1 Charles A. Cravotta III Keith B. C. Brady Michael

More information

Cost-Effective Bioremediation of Perchlorate in Soil & Groundwater

Cost-Effective Bioremediation of Perchlorate in Soil & Groundwater Cost-Effective Bioremediation of Perchlorate in Soil & Groundwater Evan Cox - GeoSyntec Consultants Elizabeth Edwards - University of Toronto Scott Neville & Michael Girard - Aerojet Outline Perchlorate

More information

Coagulation and Flocculation

Coagulation and Flocculation Coagulation and Flocculation Groundwater and surface water contain both dissolved and suspended particles. Coagulation and flocculation are used to separate the suspended solids portion from the water.

More information

Name: Class: Date: 2 4 (aq)

Name: Class: Date: 2 4 (aq) Name: Class: Date: Unit 4 Practice Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1) The balanced molecular equation for complete neutralization of

More information

Bioremediation. Biodegradation

Bioremediation. Biodegradation Bioremediation A technology that encourages growth and reproduction of indigenous microorganisms (bacteria and fungi) to enhance biodegradation of organic constituents in the saturated zone Can effectively

More information

The concentration of water is a constant so we can combine it with Keq by dividing both sides of the equation by [H2O(l)].

The concentration of water is a constant so we can combine it with Keq by dividing both sides of the equation by [H2O(l)]. Dissolved Oxygen and Carbon Dioxide Every atmospheric gas is in equilibrium with that gas dissolved in ocean water. The concentrations of two of these are particularly important. The concentration of oxygen

More information

LACR Method for Alkalinity and TOC Control

LACR Method for Alkalinity and TOC Control LACR Method for Alkalinity and TOC Control Marvin Gnagy, P.E., President PMG Consulting, Inc. OTCO Water Workshop March 5, 014 Agenda LACR Defined Applicability of LACR in Treatment Development of LACR

More information

CHEMISTRY II FINAL EXAM REVIEW

CHEMISTRY II FINAL EXAM REVIEW Name Period CHEMISTRY II FINAL EXAM REVIEW Final Exam: approximately 75 multiple choice questions Ch 12: Stoichiometry Ch 5 & 6: Electron Configurations & Periodic Properties Ch 7 & 8: Bonding Ch 14: Gas

More information

Swamp Area Passive Treatment System Kettle Creek Watershed, Clinton County, PA

Swamp Area Passive Treatment System Kettle Creek Watershed, Clinton County, PA Swamp AMD Chemistry Swamp Area Passive Treatment System Kettle Creek Watershed, Clinton County, PA A Technical Report for Trout Unlimited and the Kettle Creek Watershed Association Prepared by Hedin Environmental

More information

OXIDATION-REDUCTION TITRATIONS-Permanganometry

OXIDATION-REDUCTION TITRATIONS-Permanganometry Experiment No. Date OXIDATION-REDUCTION TITRATIONS-Permanganometry INTRODUCTION Potassium permanganate, KMnO 4, is probably the most widely used of all volumetric oxidizing agents. It is a powerful oxidant

More information

IMPACT OF CHEMICALS ADDITION IN WATER/WASTEWATER TREATMENT ON TDS CONCENTRATION AND SLUDGE GENERATION Jurek Patoczka, PhD, PE Hatch Mott MacDonald 27 Bleeker Str., Millburn, NJ 07041 (973) 912 2541 jurek.patoczka@hatchmott.com

More information

Chapter 4 Notes - Types of Chemical Reactions and Solution Chemistry

Chapter 4 Notes - Types of Chemical Reactions and Solution Chemistry AP Chemistry A. Allan Chapter 4 Notes - Types of Chemical Reactions and Solution Chemistry 4.1 Water, the Common Solvent A. Structure of water 1. Oxygen's electronegativity is high (3.5) and hydrogen's

More information

Alkalinity Profiling in Wastewater Operations. OPS Challenge Laboratory Event 2015 Description and Procedure. Alkalinity Defined.

Alkalinity Profiling in Wastewater Operations. OPS Challenge Laboratory Event 2015 Description and Procedure. Alkalinity Defined. Alkalinity Profiling in Wastewater Operations OPS Challenge Laboratory Event 2015 Description and Procedure The purpose of this competition will be to familiarize participating teams to the definition

More information

Chemical Equations & Stoichiometry

Chemical Equations & Stoichiometry Chemical Equations & Stoichiometry Chapter Goals Balance equations for simple chemical reactions. Perform stoichiometry calculations using balanced chemical equations. Understand the meaning of the term

More information

DETERMINING HYDRAULIC CONDUCTIVITIES IN A VERTICAL FLOW SYSTEM 1

DETERMINING HYDRAULIC CONDUCTIVITIES IN A VERTICAL FLOW SYSTEM 1 DETERMINING HYDRAULIC CONDUCTIVITIES IN A VERTICAL FLOW SYSTEM 1 Rachel Hutchinson and Robert W. Nairn 2 Abstract: Vertical flow systems (VFS) are a type of passive treatment unit process in which acid

More information

UTILIZATION OF FLY ASH FOR TREATMENT OF ACID MINE WATER

UTILIZATION OF FLY ASH FOR TREATMENT OF ACID MINE WATER UTILIZATION OF FLY ASH FOR TREATMENT OF ACID MINE WATER Alka Pradhan and Jitendra P. Deshmukh* Motilal Vigyan Mahavidyalaya, Bhopal (INDIA) Received November 14, 2007 Accepted August 4, 2008 ABSTRACT Lignite

More information

Water Softening for Hardness Removal. Hardness in Water. Methods of Removing Hardness 5/1/15. WTRG18 Water Softening and Hardness

Water Softening for Hardness Removal. Hardness in Water. Methods of Removing Hardness 5/1/15. WTRG18 Water Softening and Hardness Water Softening for Removal 1 in Water High concentration of calcium (Ca2+) and magnesium (Mg2+) ions in water cause hardness Generally, water containing more than 100 mg/l of hardness expressed as calcium

More information

SCH3UI-02 Final Examination Review (Fall 2014)

SCH3UI-02 Final Examination Review (Fall 2014) SCH3UI-02 Final Examination Review (Fall 2014) 1. Chlorine has an atomic number of 17. Create a Bohr Rutherford diagram of a Cl-35 atom. To achieve a stable arrangement, is this atom most likely to gain

More information

Balancing chemical reaction equations (stoichiometry)

Balancing chemical reaction equations (stoichiometry) Balancing chemical reaction equations (stoichiometry) This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit

More information

Chemical Reactions in Water Ron Robertson

Chemical Reactions in Water Ron Robertson Chemical Reactions in Water Ron Robertson r2 f:\files\courses\1110-20\2010 possible slides for web\waterchemtrans.doc Properties of Compounds in Water Electrolytes and nonelectrolytes Water soluble compounds

More information

Chemical Reactions in Water

Chemical Reactions in Water Chemical Reactions in Water Ron Robertson r2 f:\files\courses\1110-20\2010 possible slides for web\waterchemtrans.doc Acids, Bases and Salts Acids dissolve in water to give H + ions. These ions attach

More information

CHEMISTRY MEMORIZATION: STEPS FOR SOLVING STOICHIOMETRY PROBLEMS: MEMORIZE THESE use these till they are in your dreams!!!

CHEMISTRY MEMORIZATION: STEPS FOR SOLVING STOICHIOMETRY PROBLEMS: MEMORIZE THESE use these till they are in your dreams!!! CHEMISTRY MEMORIZATION: STEPS FOR SOLVING STOICHIOMETRY PROBLEMS: MEMORIZE THESE use these till they are in your dreams!!! 1. Complete reaction, determine the compounds, check oxidation numbers of each

More information

technical Cost-effective Wastewater Treatment with INTEROX Hydrogen Peroxide

technical Cost-effective Wastewater Treatment with INTEROX Hydrogen Peroxide Solvay technical Chemicals P U B L I C A T I O N Cost-effective Wastewater Treatment with INTEROX Hydrogen Peroxide Introduction Nearly every industry has a problem with toxic waste in one form or another.

More information

AP Chemistry Prep - Summer Assignment 2013

AP Chemistry Prep - Summer Assignment 2013 AP Chemistry Prep - Summer Assignment 2013 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which value has only 4 significant digits? a. 6.930 c. 8450

More information

Corrosion in your distribution. the silent pipe killer. Clean and Safe Drinking Water Workshop Gander, NL Liza Ballantyne, P.Eng.

Corrosion in your distribution. the silent pipe killer. Clean and Safe Drinking Water Workshop Gander, NL Liza Ballantyne, P.Eng. Corrosion in your distribution NEWFOUNDLAND DESIGN ASSOCIATES LIMITED system the silent pipe killer Clean and Safe Drinking Water Workshop Gander, NL 2004 Liza Ballantyne, P.Eng. Overview of Presentation

More information

Acid Mine Water Remediation a case study

Acid Mine Water Remediation a case study A Toxic Legacy During the past decade, environmental preservation and conservation issues have assumed global significance, particularly as various legislative initiatives strive to raise awareness of

More information

SNC2D Chemistry Review

SNC2D Chemistry Review SNC2D Chemistry Review Name: Draw the Bohr-Rutherford diagram for each of the following atoms and determine the valence charge of their ions: Sodium: Aluminum: Sulfur: Fluorine: From your periodic table/chemistry

More information

TREATMENT OF Fe(III) IONS FROM LEACHING SOLUTIONS WITH NEUTRALISATION AND PRECIPITATION

TREATMENT OF Fe(III) IONS FROM LEACHING SOLUTIONS WITH NEUTRALISATION AND PRECIPITATION TREATMENT OF Fe(III) IONS FROM LEACHING SOLUTIONS WITH NEUTRALISATION AND PRECIPITATION Milena DANOVSKA 1, Mirjana GOLOMEOVA 2, Dejan KARANFILOV 1, Afrodita ZENDELSKA 2 1 Bucim Mine, Radovis, Macedonia,

More information

FE REVIEW: ENVIRONMENTAL ENGINEERING

FE REVIEW: ENVIRONMENTAL ENGINEERING FE REVIEW: ENVIRONMENTAL ENGINEERING Y. T. Wang Chemical Equilibrium and Stoichiometry 1. The chloride (C1 - ) concentration in a lake is found to be 10-2 M. The HgC1 2 (aq) concentration is found to be

More information

Offshore monitoring for geological storage

Offshore monitoring for geological storage Offshore monitoring for geological storage Dr Douglas Connelly National Oceanography Centre University of Southampton Waterfront Campus Southampton dpc@noc.soton.ac.uk IEAGHG Taking stock of progress and

More information

Best Practice in Boiler Water Treatment

Best Practice in Boiler Water Treatment Best Practice in Boiler Water Treatment Boiler Water Treatment Part 2 Internal Treatment Objectives of Internal Water Treatment 1 To control the level of total dissolved solids (TDS) within the boiler

More information

Chemistry Stoichiometry. 45 points. Do not turn page until told to do so.

Chemistry Stoichiometry. 45 points. Do not turn page until told to do so. Chemistry 2010 Stoichiometry 45 points Do not turn page until told to do so. Stoichiometry Multiple Choice (Each worth 2 points) Identify the letter of the choice that best completes the statement or

More information

TREATMENT TECHNOLOGIES AND COST EVALUATION FOR WATERSHED RESTORATION: A CASE STUDY IN NORTHERN WEST VIRGINIA

TREATMENT TECHNOLOGIES AND COST EVALUATION FOR WATERSHED RESTORATION: A CASE STUDY IN NORTHERN WEST VIRGINIA TREATMENT TECHNOLOGIES AND COST EVALUATION FOR WATERSHED RESTORATION: A CASE STUDY IN NORTHERN WEST VIRGINIA by David A. Zucker Tim T. Phipps Jeff Skousen Jerald J. Fletcher 2 March, 1992 Prepared for

More information

Prediction of Water Quality Downstream of Mines

Prediction of Water Quality Downstream of Mines Prediction of Water Quality Downstream of Mines West Coast and Southland, New Zealand J. Pope & D. Craw Mine Drainage Framework Context Proposed operations Normal operations Extreme events What is the

More information

Nutrient Removal at Wastewater Treatment Facilities. Nitrogen and Phosphorus. Gary M. Grey HydroQual, Inc. ggrey@hydroqual.com 201 529 5151 X 7167

Nutrient Removal at Wastewater Treatment Facilities. Nitrogen and Phosphorus. Gary M. Grey HydroQual, Inc. ggrey@hydroqual.com 201 529 5151 X 7167 Nutrient Removal at Wastewater Treatment Facilities Nitrogen and Phosphorus Gary M. Grey HydroQual, Inc. ggrey@hydroqual.com 201 529 5151 X 7167 1 Agenda Nitrification and Denitrification Fundamentals

More information

IB Chemistry. DP Chemistry Review

IB Chemistry. DP Chemistry Review DP Chemistry Review Topic 1: Quantitative chemistry 1.1 The mole concept and Avogadro s constant Assessment statement Apply the mole concept to substances. Determine the number of particles and the amount

More information

MALAYSIA S REQUIREMENTS ON INDUSTRIAL EFFLUENT TREATMENT SYSTEMS -The WEPA Workshop and Annual Meeting 18-21 February 2013 Siem Reap, Combodiaby

MALAYSIA S REQUIREMENTS ON INDUSTRIAL EFFLUENT TREATMENT SYSTEMS -The WEPA Workshop and Annual Meeting 18-21 February 2013 Siem Reap, Combodiaby MALAYSIA S REQUIREMENTS ON INDUSTRIAL EFFLUENT TREATMENT SYSTEMS -The WEPA Workshop and Annual Meeting 18-21 February 2013 Siem Reap, Combodiaby enforcement DIVISION DEPARTMENT OF ENVIRONMENT, MALAYSIA

More information

CHAPTER 7: REMEDIATION TECHNOLOGIES FOR CONTAMINATED GROUNDWATER

CHAPTER 7: REMEDIATION TECHNOLOGIES FOR CONTAMINATED GROUNDWATER CHAPTER 7: REMEDIATION TECHNOLOGIES FOR CONTAMINATED GROUNDWATER There are a number of technologies that are being use to remediate contaminated groundwater. The choice of a certain remediation technology

More information

Mine waste stabilization with biosludge and paper mill waste 1

Mine waste stabilization with biosludge and paper mill waste 1 Mine waste stabilization with biosludge and paper mill waste 1 Roger B. Herbert 2 and Linda Höckert 3 2 Department of Earth Sciences, Uppsala University, S 752 36 Uppsala, Sweden, roger.herbert@geo.uu.se

More information

Mixed Potentials Concepts and Basics

Mixed Potentials Concepts and Basics Lecture 11 Mixed Potentials Concepts and Basics Keywords: Mixed Potential, Charge Conservation, Corrosion Potential Principle of charge conservation: Total rate of oxidation must be equal to total rate

More information

Factors that Affect the Rate of Dissolving and Solubility

Factors that Affect the Rate of Dissolving and Solubility Dissolving Factors that Affect the Rate of Dissolving and Solubility One very important property of a solution is the rate of, or how quickly a solute dissolves in a solvent. When dissolving occurs, there

More information

Prepared by: Htec Systems, Inc. 561 Congress Park Drive Dayton, Ohio 45459 937 438-3010

Prepared by: Htec Systems, Inc. 561 Congress Park Drive Dayton, Ohio 45459 937 438-3010 CARBONATE CHEMISTRY AFFECTING PRODUCTION OF BEVERAGE STILL WATER Prepared by: Htec Systems, Inc. 561 Congress Park Drive Dayton, Ohio 45459 937 438-3010 December 2005 TABLE OF CONTENTS 1.0 SUMMARY... 1

More information

Mine Water Management & Treatment Mining & Metals

Mine Water Management & Treatment Mining & Metals Mine Water Management & Treatment Mining & Metals Water is a critical resource for mining projects. Its management and protection are of paramount importance to every mine. Amec Foster Wheeler offers industry-leading

More information

SCH 4C1 Unit 2 Problem Set Questions taken from Frank Mustoe et all, "Chemistry 11", McGraw-Hill Ryerson, 2001

SCH 4C1 Unit 2 Problem Set Questions taken from Frank Mustoe et all, Chemistry 11, McGraw-Hill Ryerson, 2001 SCH 4C1 Unit 2 Problem Set Questions taken from Frank Mustoe et all, "Chemistry 11", McGraw-Hill Ryerson, 2001 1. A small pin contains 0.0178 mol of iron. How many atoms of iron are in the pin? 2. A sample

More information

Marcellus Fast Facts

Marcellus Fast Facts 1 Marcellus Fast Facts Covers about 95,000 square miles in 6 states Occurs at depths of up to 9,000 feet Thickness of 250 feet or more Largest natural gas reservoir in North America (est. 500 TCF recoverable

More information

The total mine drainage flow in the Mahanoy Creek watershed is 84.32 MGD. Of the thirty-one discharges in the watershed, only twelve discharges

The total mine drainage flow in the Mahanoy Creek watershed is 84.32 MGD. Of the thirty-one discharges in the watershed, only twelve discharges POLLUTION SOURCES There are two major sources of pollution in the study area. These sources are coal mine drainage and raw sewage. Two additional sources of pollution, silt content in streams and leachates

More information

Intelligent Mine Water Management Advanced solutions for nowadays challenges

Intelligent Mine Water Management Advanced solutions for nowadays challenges Intelligent Mine Water Management Advanced solutions for nowadays challenges iminewa 1.1.2014 31.12.2018 Tampere Vesi ja emissioseminaari 20 21.05.2015 Professor Mika Sillanpää Head of Professor Christian

More information

USE OF STEEL SLAG LEACH BEDS FOR THE TREATMENT OF ACID MINE DRAINAGE: THE McCARTY HIGHWALL PROJECT 1

USE OF STEEL SLAG LEACH BEDS FOR THE TREATMENT OF ACID MINE DRAINAGE: THE McCARTY HIGHWALL PROJECT 1 USE OF STEEL SLAG LEACH BEDS FOR THE TREATMENT OF ACID MINE DRAINAGE: THE McCARTY HIGHWALL PROJECT 1 Jennifer Simmons, Paul Ziemkiewicz and D. Courtney Black 2 Abstract. Steel slag leach beds were constructed

More information

Chemistry at Work. How Chemistry is used in the Water Service

Chemistry at Work. How Chemistry is used in the Water Service Chemistry at Work How Chemistry is used in the Water Service WATER TREATMENT Everyday, more than 100 water treatment works in Northern Ireland put approximately 680 million litres of water into the supply

More information

RECOVERY OF MARKETABLE IRON OXIDE FROM MINE DRAINAGE 1

RECOVERY OF MARKETABLE IRON OXIDE FROM MINE DRAINAGE 1 RECOVERY OF MARKETABLE IRON OXIDE FROM MINE DRAINAGE 1 Robert S Hedin 2 Abstract. Iron oxide sludge was recovered from a channel at an abandoned coal mine, processed, and used as a raw material in pigment

More information

Information Technology Solutions

Information Technology Solutions Information Technology Solutions ABSTRACT The discharge of selenium to natural water systems is regulated by law. Those with permitted outfalls must treat the waste stream to below the US EPA regulatory

More information

6/27/2014. Periodic Table of the ELEMENTS. Chemical REACTIONS you should know. Brief Review for 1311 Honors Exam 2

6/27/2014. Periodic Table of the ELEMENTS. Chemical REACTIONS you should know. Brief Review for 1311 Honors Exam 2 Brief Review for 3 Honors Exam 2 Chapter 2: Periodic Table I. Metals. Representative Metals Alkali Metals Group Alkaline Earth Metals. Group 2 2. Transition Metals II. Metalloids Chapter 3: All Chapter

More information

BALANCING REDOX EQUATIONS. Each redox equation contains two parts -- the oxidation and reduction parts. Each is balanced separately.

BALANCING REDOX EQUATIONS. Each redox equation contains two parts -- the oxidation and reduction parts. Each is balanced separately. C & EE 255B Prof. M. K. Stenstrom Winter 2015 BALANCING REDOX EQUATIONS Balancing redox (oxidation-reduction) equations is a simple and very useful technique of performing balances from empirical equations

More information

Brewery Wastewater: 2010 Water and Wastewater Conference. 11.02.2011 Page 1

Brewery Wastewater: 2010 Water and Wastewater Conference. 11.02.2011 Page 1 Brewery Wastewater: Solutions for the Problem By Fred M. Scheer 2010 Water and Wastewater Conference Madison, WI 11.02.2011 Page 1 vr74 What We Will Discuss: Biochemical i Oxygen Demand (BOD): Where does

More information

Stoichiometry Review

Stoichiometry Review Stoichiometry Review There are 20 problems in this review set. Answers, including problem set-up, can be found in the second half of this document. 1. N 2 (g) + 3H 2 (g) --------> 2NH 3 (g) a. nitrogen

More information

Chemistry 1215 Experiment #9 Copper and its Compounds

Chemistry 1215 Experiment #9 Copper and its Compounds Chemistry 1215 Experiment #9 Copper and its Compounds Objective The objective of this experiment is to take a piece of copper as efficiently as possible through a series of chemical reactions. The final

More information

DAWSON COLLEGE DEPARTMENT OF CHEMISTRY & CHEMICAL TECHNOLOGY SOLUTIONS TO PRACTICE FINAL EXAMINATION INTRODUCTION TO COLLEGE CHEMISTRY

DAWSON COLLEGE DEPARTMENT OF CHEMISTRY & CHEMICAL TECHNOLOGY SOLUTIONS TO PRACTICE FINAL EXAMINATION INTRODUCTION TO COLLEGE CHEMISTRY DAWSON COLLEGE DEPARTMENT OF CHEMISTRY & CHEMICAL TECHNOLOGY SOLUTIONS TO PRACTICE FINAL EXAMINATION INTRODUCTION TO COLLEGE CHEMISTRY Solutions Print your Name: Student Number: INSTRUCTORS: Please circle

More information

Bioremediation. Introduction

Bioremediation. Introduction Bioremediation Introduction In the twentieth century, the ever increase in the global human population and industrialization led to the exploitation of natural resources. The increased usage of heavy metals

More information

TABLE OF CONTENTS CHAPTER TITLE PAGE DECLARATION. ii DEDICATION. iii ACKNOWLEDGEMENTS. iv ABSTRACT. v ABSTRAK. vi TABLE OF CONTENTS

TABLE OF CONTENTS CHAPTER TITLE PAGE DECLARATION. ii DEDICATION. iii ACKNOWLEDGEMENTS. iv ABSTRACT. v ABSTRAK. vi TABLE OF CONTENTS vii TABLE OF CONTENTS CHAPTER TITLE PAGE DECLARATION ii DEDICATION iii ACKNOWLEDGEMENTS iv ABSTRACT v ABSTRAK vi TABLE OF CONTENTS vii LIST OF TABLES x LIST OF FIGURES xi LIST OF SYMBOLS xiv LIST OF APPENDICES

More information

EFFECTIVENESS OF SLAG BEDS IN THE TREATMENT OF ACID MINE DRAINAGE

EFFECTIVENESS OF SLAG BEDS IN THE TREATMENT OF ACID MINE DRAINAGE EFFECTIVENESS OF SLAG BEDS IN THE TREATMENT OF ACID MINE DRAINAGE By Josie Beckman Darren Boone Demetrius Saunders Rachel Staley Wahlia Walker Chaz Ward Megan Watson Taylor Woodard July 27, 2010 Science

More information

Chemical calculations

Chemical calculations Chemical calculations Stoichiometry refers to the quantities of material which react according to a balanced chemical equation. Compounds are formed when atoms combine in fixed proportions. E.g. 2Mg +

More information

Wet Air Scrubbing. A reliable technology for chemical odor treatment. Presented by: RJ ENVIRONMENTAL / METITO Georgios Ioannou, Product Manager

Wet Air Scrubbing. A reliable technology for chemical odor treatment. Presented by: RJ ENVIRONMENTAL / METITO Georgios Ioannou, Product Manager Wet Air Scrubbing A reliable technology for chemical odor treatment Presented by: RJ ENVIRONMENTAL / METITO Georgios Ioannou, Product Manager Odors Mainly formed where anaerobic conditions limit oxygen

More information

Coagulation-Flocculation-Jar Test. Assoc. Prof. Kozet YAPSAKLI

Coagulation-Flocculation-Jar Test. Assoc. Prof. Kozet YAPSAKLI Coagulation-Flocculation-Jar Test Assoc. Prof. Kozet YAPSAKLI Turbidity Turbidity particles (sand, silt, clay, bacteria, viruses) in the initial source water that need to be removed to improve treatment.

More information

VCE CHEMISTRY UNIT 2 Environmental Chemistry SAMPLE COURSE OUTLINE

VCE CHEMISTRY UNIT 2 Environmental Chemistry SAMPLE COURSE OUTLINE VCE CHEMISTRY UNIT 2 Environmental Chemistry SAMPLE COURSE OUTLINE Week Area of Study Key knowledge Possible activities Key skills 1 1 Water Role of water in maintaining life in the environment unique

More information

Iron and Manganese BACTERIA AND IRON AND MANGANESE

Iron and Manganese BACTERIA AND IRON AND MANGANESE Iron and Manganese Iron and manganese control is the most common type of municipal water treatment in Minnesota. Iron and manganese occur naturally in groundwater. Neither element causes adverse heath

More information

Formulas, Equations and Moles

Formulas, Equations and Moles Chapter 3 Formulas, Equations and Moles Interpreting Chemical Equations You can interpret a balanced chemical equation in many ways. On a microscopic level, two molecules of H 2 react with one molecule

More information

Using composting beds to treat acidity in saline drain water

Using composting beds to treat acidity in saline drain water Government of Western Australia Department of Water Using composting beds to treat acidity in saline drain water Introduction Acidic saline water is common in drains used to manage shallow saline watertables

More information

Ch. 6 Chemical Composition and Stoichiometry

Ch. 6 Chemical Composition and Stoichiometry Ch. 6 Chemical Composition and Stoichiometry The Mole Concept [6.2, 6.3] Conversions between g mol atoms [6.3, 6.4, 6.5] Mass Percent [6.6, 6.7] Empirical and Molecular Formula [6.8, 6.9] Bring your calculators!

More information

Chemistry Final Exam Review

Chemistry Final Exam Review Name: Date: Block: Chemistry Final Exam Review 2012-2013 Unit 1: Measurement, Numbers, Scientific Notation, Conversions, Dimensional Analysis 1. Write 0.000008732 in scientific notation 8.732x10-6 2. Write

More information

The component present in larger proportion is known as solvent.

The component present in larger proportion is known as solvent. 40 Engineering Chemistry and Environmental Studies 2 SOLUTIONS 2. DEFINITION OF SOLUTION, SOLVENT AND SOLUTE When a small amount of sugar (solute) is mixed with water, sugar uniformally dissolves in water

More information

Molarity of Ions in Solution

Molarity of Ions in Solution APPENDIX A Molarity of Ions in Solution ften it is necessary to calculate not only the concentration (in molarity) of a compound in aqueous solution but also the concentration of each ion in aqueous solution.

More information

Chemical Tests for Unknowns

Chemical Tests for Unknowns Chemical Tests for Unknowns Chemical tests have been developed as a means of identifying what functional groups are present in an unknown compound. Since IR and NMR spectroscopy has been developed, they

More information

CHM1045 Practice Test 2 v.1 - Answers Name: Fall 2013 (Ch. 3 & 4)

CHM1045 Practice Test 2 v.1 - Answers Name: Fall 2013 (Ch. 3 & 4) CHM1045 Practice Test v.1 - Answers Name: Fall 01 (Ch. & 4) MULTIPLE CHOICE AND FILL IN THE BLANK. Circle the one alternative that best completes the statement or answers the question or fill in the blank.

More information

W1 WORKSHOP ON STOICHIOMETRY

W1 WORKSHOP ON STOICHIOMETRY INTRODUCTION W1 WORKSHOP ON STOICHIOMETRY These notes and exercises are designed to introduce you to the basic concepts required to understand a chemical formula or equation. Relative atomic masses of

More information

Lime Softening LIME ADDITION. Hardness Lime Precipitate CO 2. + Ca(OH) 2 -> CaCO 3 + H 2 O. Ca(HCO 3 ) 2 + Ca(OH) 2 -> 2CaCO 3 + 2H 2 0

Lime Softening LIME ADDITION. Hardness Lime Precipitate CO 2. + Ca(OH) 2 -> CaCO 3 + H 2 O. Ca(HCO 3 ) 2 + Ca(OH) 2 -> 2CaCO 3 + 2H 2 0 Lime Softening Chemical precipitation is one of the more common methods used to soften water. Chemicals normally used are lime (calcium hydroxide, Ca(OH) 2 ) and soda ash (sodium carbonate, Na 2 CO 3 ).

More information

Experts Review of Aerobic Treatment Unit Operation and Maintenance. Bruce Lesikar Texas AgriLife Extension Service

Experts Review of Aerobic Treatment Unit Operation and Maintenance. Bruce Lesikar Texas AgriLife Extension Service Experts Review of Aerobic Treatment Unit Operation and Maintenance Bruce Lesikar Texas AgriLife Extension Service Overview Overview of Aerobic Treatment Units Installing for accessibility to system components

More information

Oxidation And Degradation Products Of Common Oxygen Scavengers

Oxidation And Degradation Products Of Common Oxygen Scavengers Oxidation And Degradation Products Of Common Oxygen Scavengers By John D. Zupanovich, ChemTreat, Inc. For many years, sulfite and hydrazine were the principal materials used to protect boiler systems from

More information

Aqueous Solutions. Water is the dissolving medium, or solvent. Some Properties of Water. A Solute. Types of Chemical Reactions.

Aqueous Solutions. Water is the dissolving medium, or solvent. Some Properties of Water. A Solute. Types of Chemical Reactions. Aqueous Solutions and Solution Stoichiometry Water is the dissolving medium, or solvent. Some Properties of Water Water is bent or V-shaped. The O-H bonds are covalent. Water is a polar molecule. Hydration

More information

Moles. Balanced chemical equations Molar ratios Mass Composition Empirical and Molecular Mass Predicting Quantities Equations

Moles. Balanced chemical equations Molar ratios Mass Composition Empirical and Molecular Mass Predicting Quantities Equations Moles Balanced chemical equations Molar ratios Mass Composition Empirical and Molecular Mass Predicting Quantities Equations Micro World atoms & molecules Macro World grams Atomic mass is the mass of an

More information

Molecular Formula: Example

Molecular Formula: Example Molecular Formula: Example A compound is found to contain 85.63% C and 14.37% H by mass. In another experiment its molar mass is found to be 56.1 g/mol. What is its molecular formula? 1 CHAPTER 3 Chemical

More information

New and Innovative Rare Earth Technology for Low-Level Phosphorus Removal Presented to: By: Date:

New and Innovative Rare Earth Technology for Low-Level Phosphorus Removal Presented to: By: Date: New and Innovative Rare Earth Technology for Low-Level Phosphorus Removal Presented to: By: Date: Conference on the Environment Pam Cornish Business Development Manager Nov 19, 2014 1 Discussion Outline

More information

Honors Chemistry: Unit 6 Test Stoichiometry PRACTICE TEST ANSWER KEY Page 1. A chemical equation. (C-4.4)

Honors Chemistry: Unit 6 Test Stoichiometry PRACTICE TEST ANSWER KEY Page 1. A chemical equation. (C-4.4) Honors Chemistry: Unit 6 Test Stoichiometry PRACTICE TEST ANSWER KEY Page 1 1. 2. 3. 4. 5. 6. Question What is a symbolic representation of a chemical reaction? What 3 things (values) is a mole of a chemical

More information

Attenuation of metals in tailings Lars Lövgren, Tomas Hedlund and Torbjörn Karlsson Department of Chemistry, Umeå University

Attenuation of metals in tailings Lars Lövgren, Tomas Hedlund and Torbjörn Karlsson Department of Chemistry, Umeå University Attenuation of metals in tailings Lars Lövgren, Tomas Hedlund and Torbjörn Karlsson Department of Chemistry, Umeå University Background Oxidation of sulphide minerals releases metals and acidity Weathering

More information

Basic Chemistry IX. Chemical calculations without calculator. Vladimíra Kvasnicová. Neutralization: acid + base salt + water

Basic Chemistry IX. Chemical calculations without calculator. Vladimíra Kvasnicová. Neutralization: acid + base salt + water Neutralization: acid + base salt + water non-stoichiometric neutralization: acid or base in excess Basic Chemistry IX Vladimíra Kvasnicová strong acid + strong base Calculate ph of a solution prepared

More information

Calculation of Molar Masses. Molar Mass. Solutions. Solutions

Calculation of Molar Masses. Molar Mass. Solutions. Solutions Molar Mass Molar mass = Mass in grams of one mole of any element, numerically equal to its atomic weight Molar mass of molecules can be determined from the chemical formula and molar masses of elements

More information

PASSIVE MINE WATER TREATMENT IN NORWAY

PASSIVE MINE WATER TREATMENT IN NORWAY IMWA Symposium 27: Water in Mining Environments, R. Cidu & F. Frau (Eds), 27th - 31st May 27, Cagliari, Italy PASSIVE MINE WATER TREATMENT IN NORWAY David C. Ettner GEM Consulting AS, Gamle Snarøyvei 53,

More information

XI. Methods of Analysis DETERMINATION OF POTASSIUM CARBONATE CALCULATIONS REAGENTS PROCEDURE

XI. Methods of Analysis DETERMINATION OF POTASSIUM CARBONATE CALCULATIONS REAGENTS PROCEDURE XI. NOTE: An automatic titrator may be utilized for ease of analysis, especially if this test is performed often. Contact Technical Service for further information concerning automatic titration. Methods

More information

Elements, Compounds, subscript, superscript, coefficient Periodic Table o Periods, groups, etc. o Metals o Non-metals o Metalloids

Elements, Compounds, subscript, superscript, coefficient Periodic Table o Periods, groups, etc. o Metals o Non-metals o Metalloids Chemistry Elements, Compounds, subscript, superscript, coefficient Periodic Table o Periods, groups, etc. o Metals o Non-metals o Metalloids The patterns are related to the chemical properties of the element.

More information