Example: 2. Solution. Provide depth D = 1.5 m. Sewage flow = x 170 x 0.80 x 10-3 = 1360 m 3 /d. Now, 0.182(1+. = Q L = 2.

Save this PDF as:

Size: px
Start display at page:

Download "Example: 2. Solution. Provide depth D = 1.5 m. Sewage flow = 10000 x 170 x 0.80 x 10-3 = 1360 m 3 /d. Now, 0.182(1+. = 1.562. Q L = 2."

Transcription

1 Example: 2 Design low rate trickling filter for secondary treatment of sewage generated from persons with rate of water supply 170 LPCD. The BOD 5 after primary treatment is 110 mg/l and BOD 5 of final effluent should be 20 mg/l. Consider C= Solution Provide depth D = 1.5 m t o = Sewage flow = x 170 x 0.80 x 10-3 = 1360 m 3 /d Now, = Q. L 0.182(1+. Q L 0.5 ) = 1 Q L 0.5 = Q L = m 3 /m 2 -d where, Q L = flow/area Plan area = = m2. Hence, Diameter of trickling filter = m Example: 3 Design high rate trickling filter for the data given above except effluent BOD 5 = 40 mg/l since polishing treatment is provided after high rate trickling filter. Consider recirculation ratio of 2 and filter depth of 1.8 m. 2Q, BOD = 40 TF SST

2 Q T BOD = 110 BOD in the effluent, Q x Q x 40 = (1 + 2) Q.S 0 S 0 = mg/l = Q L = 186 m 3 /m 2 -d Waste water flow is 1360 m 3 /d Recycle flow = 2720 m 3 /d and total flow = 4080 m 3 /d Area of Trickling Filter = Diameter = m = m2 Example :4 Design a single stage biotower (super rate trickling filter) for the following data: Average wastewater flow = 500 m 3 /d, Influent BOD = 160 mg/l BOD removal in primary treatment = 30%, Effluent BOD required = 20 mg/l Filter depth = 5.0 m; Recycle ratio R/Q = 2 Pilot plant studies using synthetic packing have shown a removal constant K = 2.26 at 20 0 C, and n = 0.5 (Reynolds & Richard, 1996). The winter wastewater temperature = 15 0 C. Provide minimum two filters in parallel. Solution: = 0.5

3 Now, K 15 = K (T-20) = 2.26 x (-5) = per day BOD 5 in incoming wastewater to biotower = 160 (1-0.30) = 112 mg/l Recycle flow = 2Q and BOD = 20 mg/l Therefore, 112 (Q) + 2Q x 20 = 3Q. S 0 Hence, S 0 =50.67 mg/l Substituting values in the equation Solving we get, Q L = m 3 /m 2.d Wastewater flow = 500 m 3 /d Hydraulic load on filter = x 500 = 1500 m 3 /d Area required = 1500/104.8 = m 2 Hence, diameter required for each biotower when two are provided in parallel = 3.02 m 19.3 s System for Treatment of Wastewater It is a shallow body of water contained in an earthen basin, open to sun and air. Longer time of retention form few days to weeks is provided in the pond. The purification of wastewater occurs due to symbiotic relationship of bacteria and algae. The ponds are classified according to the nature of the biological activity which takes place within the pond as aerobic, facultative and anaerobic. These are cheaper to construct and operate in warm climate as compared to conventional treatment system and hence they are considered as low cost wastewater treatment systems. However, they require higher land area as compared to conventional treatment system Classification of s Aerobic s: In aerobic pond the microbial population similar to ASP exists along with algae. The aerobic population release CO 2, which is taken up by the algae for their growth. Algae in

4 turn release O 2, which helps in maintaining the aerobic condition in the pond. Very shallow depth of aerobic pond (0.15 to 0.45 m) is used for the treatment of wastewater for removal of nitrogen by algae growth. For general wastewater treatment depth of 0.5 to 1.2 m may be used. The solar radiation should penetrate to the entire depth of the pond to support photosynthesis to keep entire pond content aerobic. When shallow ponds (0.5 m deep) are used for tertiary treatment of wastewater, they are very lightly loaded and such ponds are called as maturation pond. These maturation ponds may release oxygen in atmosphere during day time. Facultative stabilization s: Most of the ponds exist in facultative nature. Three zones exist in this type of ponds. The top zone is an aerobic zone in which the algal photosynthesis and aerobic biodegradation takes place. In the bottom zone, the organic matter present in wastewater and cells generated in aerobic zone settle down and undergo anaerobic decomposition. The intermediate zone is partly aerobic and partly anaerobic. The decomposition of organic waste in this zone is carried out by facultative bacteria. The nuisance associate with the anaerobic reaction is eliminated due to the presence of top aerobic zone. Maintenance of an aerobic condition at top layer is important for proper functioning of facultative stabilization pond, and it depends on solar radiation, wastewater characteristics, BOD loading and temperature. Performance of these ponds is comparable with conventional wastewater treatment.

5 CO 2 O 2 and other gases Wastewater New cells Suspended solids Organic matter O 2 Algae Bacteria Bacteria Dead Cells CO 2 + NH 3 + Other product New cells Settled sludge zone Anaerobic zone CH 4 + CO 2 + NH 3 + Other product Facultative stabilization pond Aerobic zone Facultative zone Treated water Algae and bacteria Figure Anaerobic pond: In anaerobic pond, the entire depth is under anaerobic condition except an extremely shallow top layer. Normally these ponds are used in series followed by facultative or aerobic pond for complete treatment. The depth of these ponds is in the range of 2.5 to 6 m. They are generally used for the treatment of high strength industrial wastewaters and sometimes for municipal wastewater and sludges. Depending upon the strength of the wastewater, longer retention time up to 50 days is maintained in the anaerobic ponds. Anaerobic lagoons are covered these days by polyethylene sheet for biogas recovery and eliminating smell problem and green house gas emission in atmosphere. Fish pond: It can be part of maturation pond or altogether separate pond, in which fish are reared. Sometimes, fishes are also reared in the end compartment of primary pond. Aquatic plant ponds: These are secondary ponds in which aquatic plants e.g. hyacinths, duckweeds, etc. are allowed to grow either for their ability to remove heavy metals and other substances from wastewaters, or to give further treatment to wastewaters and produce new plant

6 biomass. This recovered biomass can be used for biodiesel, bioethanol, combustible gas recovery as fuel or many other chemicals can be recovered using these plants as feed stock. High-rate algal ponds: The high rate algal pond (HRAP) is potentially an effective disinfection mechanism within the requirements of sustainability. In addition to disinfection, nutrient removal mechanisms are also active in the HRAP, specifically those involved in the removal of phosphate. These ponds are not designed for optimum purification efficiency but for maximum algal production. The algae is harvested for a variety of uses, principally high quality algal protein. The ponds are shallow lagoons cm deep, with a retention period of 1 3 days. The whole pond is kept aerobic by maintaining a high algal concentration and using some form of mechanical mixing. Mixing is normally carried out for short periods at night to prevents the formation of a sludge layer. Mixing may be required for short periods during the day to prevent a rise in ph in the surface water due to photosynthesis. The pond is commissioned in the same way as a facultative pond except that continuous loading should not be permitted until an algal bloom has developed. Loading depends on solar radiation, and the average loading throughout the year could be 100 to 200 kg BOD ha 1 d 1. Strong organic sewages inhibit the photosynthetic action due to high ammonia concentrations, which results in the pond becoming anaerobic. High rate algal ponds are designed to promote the symbiosis between the microalgae and aerobic bacteria, each utilizing the major metabolic products of the other. Microalgae grow profusely releasing oxygen from water by photosynthesis. This oxygen is immediately available to bacteria to oxidize most of the soluble and biodegradable BOD remaining from the facultative pond. HRPs are shallower than facultative ponds and operate at shorter hydraulic retentions times (HRTs). At the rapid growth of algae, the ph can raise to above 9 since at peak algal activity carbonate and bicarbonate ions react to provide more carbon dioxide for the algae, leaving an excess of hydroxyl ions. A ph above 9 for 24 hours ensures a 100% kill of E. coli and presumably most pathogenic bacteria. Primary and secondary ponds: s receiving untreated wastewaters are referred as raw or primary waste stabilization ponds. Those receiving primary treated or biologically treated wastewaters for further treatment are called as secondary waste stabilization ponds. Maturation pond is the secondary pond receiving already treated wastewater either from the ponds or other biological wastewater treatment process, like UASB reactor or ASP. The detention time of 5 to

7 7 days is provided in these ponds, with the main purpose of achieving natural bacterial die-off to desired levels. In warm climate they often constitute an economical alternative for chlorination. They are lightly loaded in terms of organic loading and the oxygen generated by photosynthesis may be more than the oxygen demand Typical Flow Chart of Based Treatment Plant The typical treatment flow sheets for different types of ponds in use are illustrated in the Figure The ponds can be used in series or in parallel. Chlorination of the treated effluent is optional. The primary treatment after screen can be combined in the ponds along with secondary treatment. Sewage Facultative Restricted irrigation Sewage Anaerobic Facultative Contact tank (disinfection) Discharge to river or used for unrestricted irrigation Sewage Anaerobic Facultative Maturation with fish pond or separate fish pond in parallel Contact tank (optional) Discharge to river or used for unrestricted irrigation Figure Layouts of the waste stabilization ponds

CHAPTER 14 WASTEWATER TREATMENT PONDS

CHAPTER 14 WASTEWATER TREATMENT PONDS 14-1, Background. A wastewater stabilization pond is a relatively shallow body of wastewater contained in an earthen basin which is designed to treat wastewater. (

Wastewater Treatment

BOD Bio Chemical Oxygen Demand TSS Total Suspended Solids Wastewater Treatment Fecal Coliform ph NH3 Nitrogen Ammonia What is Sewage Pathogens or disease-causing organisms are present in sewage. Sewage

LAGOONS AND STABILIZATION PONDS

LAGOONS AND STABILIZATION PONDS One of the oldest means of treating wastewater is the wastewater lagoon or stabilization pond. Although the terms are usually interchangeable, the term lagoon usually refers

WATER TREATMENT PROCESSES. Primary treatment. runoff

WATER TREATMENT PROCESSES Effluent Primary treatment Secondary Treatment runoff Tertiary treatment Water Treatment Processes PRIMARY TREATMENT to prepare the wastewater for biological treatment Purpose

Department of Civil Engineering-I.I.T. Delhi CEL 212: Environmental Engineering

Department of Civil Engineering-I.I.T. Delhi CEL 212: Environmental Engineering Q1. An anaerobic reactor, operated at 35 o C, treats wastewater with a flow of 2000m 3 /d and a biological soluble COD (bscod)

Module 13 : Characteristics Of Sewage And Overview Of Treatment Methods

1 P age Module 13 : Characteristics Of Sewage And Overview Of Treatment Methods Lecture 17 : Characteristics Of Sewage And Overview Of Treatment Methods (Contd.) 2 P age 13.8 Sewage Treatment Flow Sheet

WASTEWATER TREATMENT OBJECTIVES

WASTEWATER TREATMENT OBJECTIVES The student will do the following: 1. Define wastewater and list components of wastewater. 2. Describe the function of a wastewater treatment plant. 3. Create a wastewater

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

Wastewater Stabilization Ponds (Lagoons) Prepared by: Mark Matheson Presented by: Fred Summers NCRWA

Wastewater Stabilization Ponds (Lagoons) Prepared by: Mark Matheson Presented by: Fred Summers NCRWA Introduction to Lagoons Wastewater Treatment Facility Natural Biological Process In Use Since Ancient

INTEGRATED POND AND BNR ACTIVATED SLUDGE TREATMENT PROCESS TO ACHIEVE RELIABLE NITROGEN AND PHOSPHORUS REMOVAL

INTEGRATED POND AND BNR ACTIVATED SLUDGE TREATMENT PROCESS TO ACHIEVE RELIABLE NITROGEN AND PHOSPHORUS REMOVAL Annalien Toerien Golder Associates Africa, PO Box 6001, Halfway House, 1685. E-mail: atoerien@golder.co.za

WINERY WASTEWATER TREATMENT***

WINERY WASTEWATER TREATMENT*** by Edwin Haynes*, George Stevens*, and Paul Russell, Jr.** INTRODUCTION In 1969 experience with treatment of winery wastewaters in this Country was limited to one winery

Questionnaire: Operation of Wastewater Treatment Plants

This questionnaire has been designed by a work team of the Technological Center CARTIF to obtain information about the wastewater treatment plant in the field of the project - Development of tools and

CHAPTER 8 UPGRADING EXISTING TREATMENT FACILITIES

CHAPTER 8 UPGRADING EXISTING TREATMENT FACILITIES 8-1. General. Upgrading of wastewater treatment plants may be required to handle increased hydraulic and organic loadings to meet existing effluent quality

Homework #9 Wastewater Treatment

5 points total for CEE 371 entire homework Fall 2009 Homework #9 Wastewater Treatment Consider the design of a wastewater treatment plant (WWTP) for a community with average daily and peak hourly wastewater

INTRODUCTION TO WASTEWATER TREATMENT

INTRODUCTION TO WASTEWATER TREATMENT The term wastewater is commonly used to describe liquid wastes that are collected and transported to a treatment facility through a system of sewers. Wastewater is

Penrith Wastewater Treatment Plant

Penrith Wastewater Treatment Plant Treating wastewater at Penrith Wastewater Treatment Plant Wastewater that comes into a wastewater treatment plant is about 99% water and about one percent solids and

Nutrient recovery from wastewater via biological algal uptake

School of Civil Engineering FACULTY OF ENGINEERING Nutrient recovery from waste via biological algal uptake Miller Alonso Camargo-Valero WASH and Resource Recovery BioRefine Final Conference Het Pand,

PULP AND PAPER MAKING WASTES, TREATMENT AND ENVIRONMENTAL EFFECTS

PULP AND PAPER MAKING WASTES, TREATMENT AND ENVIRONMENTAL EFFECTS BIOPROA Departamento de Ingeniería de Reactores Liliana Borzacconi María Noel Cabrera Facultad de Ingeniería Universidad de la República

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

COMPLETELY MIXED ACTIVATED SLUDGE PROCESS

ACTIVATED SLUDGE PROCESS SCHEMATICS COMPLETELY MIXED ACTIVATED SLUDGE PROCESS Primary Settler Aeration Basin (CSTR) Secondary Settler Primary Sludge Return Activated Sludge (RAS) Advantages 1. Allows good

ADVANCED LAGOON TREATMENT TECHNOLOGIES FOR WASTEWATER TREATMENT

ADVANCED LAGOON TREATMENT TECHNOLOGIES FOR WASTEWATER TREATMENT ABSTRACT by Vikram M Pattarkine*, Randall C Chann**, Charles E Tharp** *Brinjac Engineering Inc, 114 North 2 nd Street, Harrisburg, PA 1711

A NOVEL ION-EXCHANGE/ELECTROCHEMICAL TECHNOLOGY FOR THE TREATMENT OF AMMONIA IN WASTEWATER

A NOVEL ION-EXCHANGE/ELECTROCHEMICAL TECHNOLOGY FOR THE TREATMENT OF AMMONIA IN WASTEWATER ABSTRACT Leonard P. Seed, M.Sc., P.Eng., Enpar Technologies Inc. * Daren D. Yetman, A.Sc.T., Enpar Technologies

Lagoon/Pond Treatment Systems results from pre workshop survey Organisation PART I Total A B C D E F G H I 1a) What parameters do you monitor?

Lagoon/Pond Treatment Systems results from pre workshop survey Organisation PART I Total A B C D E F G H I 1a) What parameters do you monitor? microbial indicators 7 1 1 1 1 1 0 1 1 0 Algal/cyanobacterial

Aerobic Digestion, or, It s a Bug eat Bug World. Brett Ward Municipal Technical Advisory Service The University of Tennessee

Aerobic Digestion, or, It s a Bug eat Bug World Brett Ward Municipal Technical Advisory Service The University of Tennessee Aerobic Digestion Continuation of the Activated Sludge Process Super Extended

Fort Wayne Water Pollution Control Plant

Fort Wayne Water Pollution Control Plant The Water Pollution Control Plant located on Dwenger Avenue -- provides wastewater treatment for the City of Fort Wayne and surrounding areas. Following the treatment

City of Patterson Waste Water Treatment Plant.

City of Patterson Waste Water Treatment Plant www.ci.patterson.ca.us Our Mission: To manage and operate safe, cost-efficient, and environmentally sound services for the benefit of the citizens of Patterson.

SEWAGE TREATMENT PLANT AT BRAMPTON FARMS, ST. CATHERINE FCS # 0853/76/C ENGINEERING REPORT

CIVIL & STRUCTURAL ENGINEERING CONSULTANTS 7A Barbados Avenue, Kingston 5, Jamaica, Tele: (876) 754-2154/5 Fax: (876) 754-2156 E-mail: mail@fcsconsultants.com SEWAGE TREATMENT PLANT AT BRAMPTON FARMS,

Rehabilitation of Wastewater Treatment Plant of Sakhnin City in Israel by Using Advanced Technologies

Rehabilitation of Wastewater Treatment Plant of Sakhnin City in Israel by Using Advanced Technologies Yasar Avsar 1, Hussein Tarabeah 2, Shlomo Kimchie 3, Izzet Ozturk 4, Hadi Naamneh 2 1 Yildiz Technical

Wastewater treatment. The training equipment

EDS Water Management The training equipment The EDS Water Management is a modular training equipment which simulates the core processes of water and wastewater treatment plants. The EDS Wastewater Treatment

7 th Workshop on Greenhouse Gas Inventories in Asia Possibly Co-benefit? Advanced Wastewater Treatment Process Tomonori ISHIGAKI Dept. of Environmental Solution Technology Ryukoku University, Japan Introductory

AP ENVIRONMENTAL SCIENCE 2007 SCORING GUIDELINES

AP ENVIRONMENTAL SCIENCE 2007 SCORING GUIDELINES Question 1 Read the Fremont Examiner article below and answer the questions that follow. (a) Identify ONE component of the sewage that is targeted for removal

WASTEWATER LAGOONS TRAINING AND TROUBLESHOOTING

WASTEWATER LAGOONS TRAINING AND TROUBLESHOOTING TYPES OF LAGOONS AEROBIC ANAEROBIC FACULTATIVE AEROBIC Lagoons that have dissolved oxygen distributed throughout their contents all the time. Require additional

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

Wastewater Nutrient Removal

Wastewater Nutrient Removal An overview of phosphorus and nitrogen removal strategies Presented by: William E. Brown, P.E. Peter C. Atherton, P.E. Why are nutrients an issue in the environment? Stimulates

OPTIMIZING BIOLOGICAL PHOSPHORUS REMOVAL FROM AN SBR SYSTEM MIDDLEBURY, VT. Paul Klebs, Senior Applications Engineer Aqua-Aerobic Systems, Inc.

OPTIMIZING BIOLOGICAL PHOSPHORUS REMOVAL FROM AN SBR SYSTEM ABSTRACT MIDDLEBURY, VT Paul Klebs, Senior Applications Engineer Aqua-Aerobic Systems, Inc. The Middlebury Wastwater Treatment Plant, located

1.85 WATER AND WASTEWATER TREATMENT ENGINEERING FINAL EXAM DECEMBER 20, 2005

1.85 WATER AND WASTEWATER TREATMENT ENGINEERING FINAL EXAM DECEMBER 20, 2005 This is an open-book exam. You are free to use your textbook, lecture notes, homework, and other sources other than the internet.

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

Pollution and Purification of Water

Pollution and Purification of Water 11/3/10 Chem 402 - Fall 2010 Lecture 14-1 Water disinfection Water disinfection involves the removal of suspended particles, organic mater, colloidal particles, and

! # # %% & ( ) ) ) +, %%,./0% %% 1 2 ( 1 (

! # # %% & ( ) ) ) +, %%,./0% %% 1 2 ( 1 ( & 3 Waste Stabilization Ponds: Past, Present and Future Duncan Mara School of Civil Engineering Natural vs Conventional Wastewater Treatment Basically a choice

POND MANAGEMENT GUIDE

POND MANAGEMENT GUIDE BREAK THE AQUATIC WEED CYCLE When algae or aquatic weeds get out of control, algaecides and aquatic herbicides are used to control the situation. However, as algae and plants die,

Phosphorus Removal. Wastewater Treatment

Phosphorus Removal In Wastewater Treatment by Derek Shires (512) 940-2393 Derek.Shires@ett-inc.com Why do we care? Eutrophication of surface water - Especially reservoirs Maximum agronomic uptake - Limiting

Producing Energy, Not Biosolids, Through Anaerobic Domestic Wastewater Treatment

Producing Energy, Not Biosolids, Through Anaerobic Domestic Wastewater Treatment Perry L. McCarty, Jaeho Bae, Jeonghwon Kim, Po-Heng Lee Inha University, South Korea Stanford University, USA INHA University,

ENVIRONMENTAL ISSUES IN THE RENDERING INDUSTRY. Gregory L. Sindt, P.E. Environmental Engineer Bolton and Menk, Inc.

Summary ENVIRONMENTAL ISSUES IN THE RENDERING INDUSTRY Gregory L. Sindt, P.E. Environmental Engineer Bolton and Menk, Inc. The rendering industry has a significant positive impact on environmental quality.

1 Environmental Leverage Inc. 630-906-9791 812 Dogwood Dr. Suite A, North Aurora, IL 60542 EnvironmentalLeverage.com

Ponds, Lakes, Canals or River Remediation with Bioaugmentation Eutrophication: The introduction of an excessive amount of contaminants and nutrients (notably nitrogen and phosphorus) into an aquatic ecosystem

ARM Nitrification is a two-step aerobic process. In the first step, beneficial microorganisms oxidize ammonium (NH 4+

Distributed by: ARM 1010 AMMonia reducing microbes Application Sheet ARM 1010 is a blend of nitrifying bacteria that removes ammonia from wastewater. It is used in a variety of industries that use aerobic

Glossary of Wastewater Terms

Glossary of Wastewater Terms Activated Sludge Sludge that has undergone flocculation forming a bacterial culture typically carried out in tanks. Can be extended with aeration. Advanced Primary Treatment

Government of India Ministry of Drinking Water and Sanitation

Government of India Ministry of Drinking Water and Sanitation Study of Waste Water Treatment Technologies adopted in Ludhiana and Muktasar Districts of Punjab by the State Government 0 Study of Waste Water

ENVIRONMENTAL AND HEALTH ASPECTS OF WATER TREATMENT AND SUPPLY - Alternative Sewage Disposal Systems - Katsuyoshi Tomono, Yasumoto Magara

ALTERNATIVE SEWAGE DISPOSAL SYSTEMS Katsuyoshi Tomono Tokyo Engineering Consultants, Co., Ltd., Tokyo, Japan Yasumoto Magara Hokkaido University, Sapporo, Japan Keywords: activated sludge method, BOD,

The Biocleaner system is a revolutionary, breakthrough technology that harnesses the power of nature to treat all types of organic waste, such as

The Biocleaner system is a revolutionary, breakthrough technology that harnesses the power of nature to treat all types of organic waste, such as residential, commercial, industrial, municipal sectors.

Phosphorus Removal in Wastewater Treatment

RESEARCH & DEVELOPMENT REPORT NO. Phosphorus Removal in Wastewater Treatment (Final Report) Research and Development Section Electrical & Mechanical Projects Division Nov 2013 Final Report endorsed by

DESIGN OF A COMMON EFFLUENT TREATMENT PLANT FOR AN INDUSTRIAL ESTATE

DESIGN OF A COMMON EFFLUENT TREATMENT PLANT FOR AN INDUSTRIAL ESTATE S. RAMPAIR1, C. VENKOBACHAR2, R. CHEVANNES3, F. GRANT1, & D. THORNHILL4 1. Undergraduate Students Department of Civil Engineering, UWI,

Commensalism is a symbiotic relationship in which one organism benefits and the other organism is not affected.. What they might ask:

B-6.1 Explain how the interrelationships among organisms (including predation, competition, parasitism, mutualism, and commensalism) generate stability within ecosystems. ecosystem - biotic community (all

4.2 Option 1 Expand Existing Lagoon System

4. WASTEWATER TREATMENT SYSTEM 4.1 of Existing Lagoons The of existing lagoon system is evaluated for future demand based on the following requirements. Existing Lagoons Anaerobic cells - Four Cells, of

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

Chapter 14 Quiz. Multiple Choice Identify the choice that best completes the statement or answers the question.

Chapter 14 Quiz Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is NOT true regarding the Chesapeake Bay? a. it is one of many small

Anaerobic Digestion: Biology and Benefits

In: Dairy Manure Management: Treatment, Handling, and Community Relations. NRAES-176, p.63-72. Natural Resource, Agriculture, and Engineering Service, Cornell University, Ithaca, NY, 2005. Anaerobic Digestion:

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

Completely Mixed Activated Sludge (CMAS) Bioreactor Design Equations

ompletely Mixed Activated Sludge (MAS) Bioreactor Design Equations Secondary larifier (Q-Q W ), S, X e Q, S O (Q+Q r ), S, X X, S, V Aeration Tank Q r, X r, S Return Activated Sludge (RAS) Q W, X r, S

Aerobic Digestion: The breakdown of wastes by microorganisms in the presence of dissolved oxygen.

Glossary of Terms Activated Sludge: Sludge particles produced in raw or settled wastewater (primary effluent) by the growth of organisms (including zoogleal bacteria) in aeration tanks in the presence

Environmental Science 101 Waste. Fall 2012. Lecture Outline: Terms You Should Know: Learning Objectives: Reading Assignment: Chlorinated.

Environmental Science 101 Waste Fall 2012 1 Lecture Outline: 17. SEWAGE DISPOSAL A. Sewage Handling B. Raw Sewage C. Wastewater Treatment Steps D. Individual Septic Systems E. Taking Stock Learning Objectives:

Sewerage Management System for Reduction of River Pollution

Sewerage Management System for Reduction of River Pollution Peter Hartwig Germany Content page: 1 Introduction 1 2 Total emissions 3 3 Discharge from the wastewater treatment plants 4 4 Discharge from

Biological Phosphorus Removal Activated Sludge Process in Warm Climates

Biological Phosphorus Removal Activated Sludge Process in Warm Climates CaoYe Shi Publishing London* New York Contents Preface Acknowledgements About the author Nomenclature ix xi xiii xv Chapter 1 General

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

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

Dr. Girish R. Pophali Principal Scientist, Wastewater Technology Division

Seminar on Waste Management in Indian Railways June 6, 2016 "Challenges and Opportunities of Sewage Management for Indian Railways" Dr. Girish R. Pophali Principal Scientist, Wastewater Technology Division

Sewage (Wastewater) Treatment *

Sewage (Wastewater) Treatment * Sewage, or wastewater, includes all the water from a household that is used for washing and toilet wastes. Rainwater flowing into street drains and some industrial wastes

Which of the following can be determined based on this model? The atmosphere is the only reservoir on Earth that can store carbon in any form. A.

Earth s Cycles 1. Models are often used to explain scientific knowledge or experimental results. A model of the carbon cycle is shown below. Which of the following can be determined based on this model?

Waste Water Treatment Process

Waste Water Treatment Process INCLINED SCREW PUMPS The raw influent flows into a wet well where it is carried up nearly thirty feet by one of two inclined screw pumps. The 78-inch diameter screw pumps

ANAEROBIC BIOTRANSFORMATION & METHANE GENERATION POTENTIAL OF CHEESE WHEY IN BATCH AND UASB REACTORS. by GÖKSEL N. DEMİRER

ANAEROBIC BIOTRANSFORMATION & METHANE GENERATION POTENTIAL OF CHEESE WHEY IN BATCH AND UASB REACTORS by GÖKSEL N. DEMİRER Why current trend in treatment of industrial and agro-industrial wastewaters towards

ACTIFLO Process For Wet Weather and Wastewater Treatment

ACTIFLO Process For Wet Weather and Wastewater Treatment ACTIFLO Microsand Ballasted Clarification Process ACTIFLO is a high rate, compact process developed by Veolia Solutions & Technologies. The process

CASE STUDY: BRISBANE WATER FAIRFIELD WASTE WATER TREATMENT PLANT

2006 Virotec International plc All rights reserved. A COMMERCIAL APPLICATION OF VIROSEWAGE CASE STUDY: BRISBANE WATER FAIRFIELD WASTE WATER TREATMENT PLANT Significant reductions in and are noticed. The

Module 18 The Activated Sludge Process Part IV Revised November 2014

Wastewater Treatment Plant Operator Certification Training Module 18 The Activated Sludge Process Part IV Revised November 2014 This course includes content developed by the Pennsylvania Department of

The Corporation of the Municipality of Wawa

The Corporation of the Municipality of Wawa Prepared by: Water & Sewer Department Infrastructure Services February 2016 2015 Annual Sewage Performance Report Table of Contents Signature Page... (i) Table

POTW PHOSPHORUS REMOVAL PROCESSES

POTW PHOSPHORUS REMOVAL PROCESSES Ohio Lake Erie Phosphorus Task Force - December 20, 2007 ROBERT M. BONNETT, PE Northeast Ohio Regional Sewer District OUTLINE SOURCES AND FORMS IN WASTEWATER TYPICAL POTW

Activated Sludge Design, Startup, Operation, Monitoring and Troubleshooting

Activated Sludge Design, Startup, Operation, Monitoring and Troubleshooting Ohio Water Environment Association Plant Operations Workshop Columbus, Ohio September 1, 2010 Phil Anderson Operations Specialist

Provided below is a description of the processes generating wastewater in a poultry plant and a typical pretreatment and full treatment system.

II. PROCESS OVERVIEW Provided below is a description of the processes generating wastewater in a poultry plant and a typical pretreatment and full treatment system. II.1. Wastewater Generation A typical

Treatment and Biosolids Technologies. City of Morro Bay New Water Reclamation Facility

Treatment and Biosolids Technologies City of Morro Bay New Water Reclamation Facility Engineering Component of Siting Study Project engineering team will look at the following parameters related to each

Activated Sludge Biological Nutrient Removal Process Variations

Activated Sludge Biological Nutrient Removal Process Variations Western Chapter Spring Wastewater Conference May 17, 2016 Dan Miklos, Senior Associate, Midwest Region, Hazen and Sawyer Activated Sludge

Who is responsible for making sure that wastewater is treated properly?

WASTEWATER TREATMENT What is wastewater? Wastewater is water that has been used and must be treated before it is released into another body of water, so that it does not cause further pollution of water

Waste Management in the Chemical and Petroleum Industries

Brochure More information from http://www.researchandmarkets.com/reports/2638612/ Waste Management in the Chemical and Petroleum Industries Description: The global chemical and petroleum industries have

This Questionnaire is divided into 8 sections referring to different capacity areas on the safe use of wastewater in agriculture:

Annex - II Questionnaire to support the Capacity Development Needs Assessment In the framework of the Capacity Development Project on Safe Use of Wastewater 1 in Agriculture Phase I The Food and Agriculture

BOD / CBOD FROM A TO Z. Amy Starkey Stark County Sanitary Engineers

BOD / CBOD FROM A TO Z Amy Starkey Stark County Sanitary Engineers What is BOD???? What is BOD? It is a measure of the amount of oxygen consumed by bacteria during the decomposition of organic materials.

Improvement of water quality in Nakhon Ratchasima (Thailand) Technical Proposal. 22 May 2002

Improvement of water quality in Nakhon Ratchasima (Thailand) Technical Proposal 22 May 2002 Kitakyushu City Environment Preservation Association 1 Keiichi WATANABE, Naomichi SUGIMOTO 1 97-3 Nishiminato-machi,

Veolia Water Outsourcing

Veolia Water Outsourcing Waste Water and Energy Recovery Greg Turner Technical Director 23 rd April 2008 Veolia Environnement is the world leader in water services. Water and wastewater services management

Energy Efficiency and Recovery Opportunities Analysis for Municipal Wastewater Treatment Plant Operations

Utah State University DigitalCommons@USU All Graduate Plan B and other Reports Graduate Studies 4-28-2015 Energy Efficiency and Recovery Opportunities Analysis for Municipal Wastewater Treatment Plant

Iowa DNR Wastewater Treatment Technology Assessment No. 09-01

Iowa DNR Wastewater Treatment Technology Assessment No. 09-01 Evaluation of Full-Scale LemTec Biological Treatment Facilities for Wastewater Design Review Considerations by the Iowa Department of Natural

TECHNOLOGIES THAT TRANSFORM POLLUTANTS INTO INNOCUOUS COMPONENTS: COMBINED BIOLOGICAL /CHEMICAL METHODS

TECHNOLOGIES THAT TRANSFORM POLLUTANTS INTO INNOCUOUS COMPONENTS: COMBINED BIOLOGICAL /CHEMICAL METHODS Wang Jianlong Department of Environmental Science and Engineering, Tsinghua University, Beijing,

Aerated lagoons for the treatment of municipal wastewater

Aerated lagoons for the treatment of municipal wastewater General Up to now several new methods of wastewater treatment in rural districts have been applied. The oldest and easiest type of wastewater treatment

SECONDARY TREATMENT ACTIVATED SLUDGE

SECONDARY TREATMENT ACTIVATED SLUDGE Activated sludge is another biological process used to remove organics from wastewater. Like the trickling filter, activated sludge processes are used to grow a biomass

Case Study. Biogas Effluent Treatment with VSEP. Biogas

Biogas Effluent Treatment with VSEP Biogas As organic materials decompose in places where there is no oxygen, methane gas is created. Bacteria and other microorganisms digest the organic materials breaking

Facility Classification Standards

Facility Classification Standards Approval Date: April 3, 2009 Effective Date: April 3, 2009 Approved By: Nancy Vanstone, Deputy Minister Version Control: Replaces Facility Classification Standards dated

How Ecosystems Work: Energy Flow and Nutrient Cycles. Multiple Choice Test

How Ecosystems Work: Energy Flow and Nutrient Cycles Multiple Choice Test 1. The flow of solar energy through an ecosystem is marked by a) plants converting light energy to chemical energy via photosynthesis

Microalgae Grown in Photobioreactors for Mass Production of Biofuel Need for Sustainable Energy The Price of Energy is Going UP Oil reserves are depleting World demand for energy is increasing Economic

SMALL COMMUNITY TREATMENT PLANT EXPANSION WHILE IN OPERATION USING ADVANCED TECHNOLOGY

SMALL COMMUNITY TREATMENT PLANT EXPANSION WHILE IN OPERATION USING ADVANCED TECHNOLOGY Adel Bassyouni, HDR Engineering, Guillermo Garcia, HDR Engineering, Don Mc Dermott, Viejas Public Works Department

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

Module 16: The Activated Sludge Process - Part II Instructor Guide Answer Key

Unit 1 Process Control Strategies Exercise Module 16: The Activated Sludge Process - Part II Instructor Guide Answer Key 1. What are the six key monitoring points within the activated sludge process? Ans:

Ecology Review Questions

1. The food chain above shows (A) one autotroph and two heterotrophs (B) one producer, one autotroph, and one decomposer (C) one producer and two omnivores (D) one heterotroph and two autotrophs 2. Assume