Waste Management Services

Waste Management Services for Oil & Gas Industries in Japan and Southeast Asia by DOWA ECO-SYSTEM CO., LTD. (Tokyo, JAPAN) Toru NISHIYAMA December 15 & 16 th, 2014 5th Joint KISR/JCCP Environment Symposium in Kuwait

Contents 1. Introduction of DOWA 2. Hazardous waste treatment facilities in Japan, Thailand, and Indonesia 3. Drilling Waste Management (DWM) and site services for oil & gas project 4. Soil remediation for oil-contaminated soil 2

1. Introduction of DOWA 3

Overview of DOWA Holdings Co., Ltd. Founded 1884 in Japan Common Stock JPY 36.4 billion Net Sales (FY2013) JPY 443.9 billion Employees about 5,500 (April 2014) Environmental Management & Recycling Business companies Smelting Nonferrous Metals Electronic Materials Metal Processing Heat Treatment Dowa Eco-System Dowa Metals & Mining 4 Dowa Electronics Materials Dowa Metaltech Dowa Thermotech

Material manufacturing Metal Refining Smelting and refining of Gold, silver, copper, gallium, indium etc. Core Businesses of DOWA Manufacture of value-added materials Electronic Materials Metal Processing Heat Treatment LEDs, silver powders, ferrite powders, other metal powders etc. Connector materials, Metal-ceramic boards, other metal processing etc. Furnace for heat treatment of automobile components etc. Recycling and Detoxification Environmental Management & Recycling Creating a recycle-oriented business Resource Recycling, Waste Management, Soil Remediation, Consulting etc. Assembled into Consumer Product Computer, plasma displays, mobile phones, batteries, automobiles etc. 5

Metal Recycle Technology of DOWA Introduce New Type Furnace for Secondary Materials Au Ag Cu Cd Zn Pb Ga Ge Bi In Pt Se 6 Pd Te Rh S Sb Co Rt Li Sn Ni

Business Activities of DOWA ECO-SYSTEM 1. Waste Treatment Collection of mainly industrial waste and some municipal waste, and treatment of waste. 2. Soil & Groundwater Remediation Investigation and remediation of soil & groundwater contaminated by heavy metals (lead, arsenic, etc.), oils and Volatile Organic Compounds (VOCs). 3. Metal Recycling Recycle of precious metals from waste and scraps, such as factory discharge, home appliances and vehicles. 4. Logistics Transportation of waste and recyclable materials mentioned above. 7

DOWA s Network in Japan Incineration Land Fill Melting Facilities Branches Sales department Branches Eco-System Akita (EAK) Meltec(MLT) Eco-System Sanyo (ESY) Green Fill Kosaka (GFK) Treatment disaster waste (as Joint Venture) Eco-System Chiba (ECB) Kowa Seiko (Incineration and Recycling Iron-manufacture materials) Okayama Koyu (Mixture and Neutralization) 8 Eco-System Japan (Sales department and Collection) DOWA ECO-System

Waste from Oil Industry in Japan Waste from oil refinery sodium hydroxide from desulfurizing process tank washing waste water tank sludge, etc. Photo from KK KYODO NEWS SITE 9

Environmental Business in Asia Metal Recycling Metal Recycling Soil Remediation Metal Recycling Soil Remediation Waste Management Waste Management Metal Recycling Soil Remediation Waste Management Metal Recycling Soil Remediation Waste Management Metal Recycling 10

2. Hazardous Waste Treatment in Japan, Thailand, and Indonesia 11

Industrial Waste Pesticide Waste Plastics Waste Solvent Fabric Waste Waste Bottles Sludge

Hazardous Waste (Japanese Regulation) Flammable oil (flame point less than 70 degrees centigrade) Wastewater (acid<ph2, alkaline>ph12.5) Infective (medical) waste Polychlorinated biphenyls (PCBs) Asbestos Waste contains hazardous substances such as heavy metals (Pb, Hg, As, etc.), solvents, pesticides, and dioxins. In addition, sludge containing 5% or more oil is not allowed for landfill (not classified as hazardous ). 13

Hazardous Waste Incinerator Capacity: 600 t/day (Total 2000 t/day in Japan) 14

Process Flow of Incinerator SCC Steam generator Bag filter #1 Waste liquid for temperature control Bag filter #2 De-NOx non-hazardous solid wastes Rotary kiln FH facility (for flammable or hazardous waste) Boiler Cinders Thermal recycling 1) Waste oil is used as fuel for incinerator. 2) Waste liquids (waste alkali and acid) is used for temperature control. Quench tower as a raw materials for cement Soot and dust Thermal Recovering Generation of Electricity 1) Waste heat generator (4000 kw) 2) The generated electricity is used in our plants. Induced draft fan Exhaust stack Material Recycle The cinders (combustion residue) is utilized as a raw material of roadbed

Hazardous Waste Pre-Treatment System Hazardous waste drums Inert gas Shredder (reducing the size) Mixer (homogenizing) Piston pump (feeding) The hazardous wastes are shredded under inert gas condition (in the shredder). Shredded wastes are homogenized in the mixer. Piston pump fed wastes to the front wall16of the rotary kiln.

Controlled Waste Landfill Hazardous waste landfill for incinerated ash and other waste. Capacity: 2.7 million m3 Landfill space Way bridge, Office Water treatment plant 17

Ash Melting for Recycle Toxic, Hazard waste For the Roadbed Material Industrial Eco-System Chiba, Akita (Incineration) Bottom Ash Artificial Stone (Molten Slag) 30,000 ton/year Lower layer 15,000 ton/year Bottom & Fly Ash (mainly result from municipal waste) 200 ton/year Metal Recycling Molten Metal include in Au,Cu,etc Municipal Industrial Green Fill Kosaka (Landfill) 18 6

Mercury Contaminated Waste in Thailand Ceramic ball Catalyst Sludge Sand PPE Filter 19

Mercury Treatment Facility in Thailand Loading Area Processing Area Unloading Area Heat by electricity up to 600 700 20

Process Flow Chart of Mercury Treatment 21

Waste Landfill in Indonesia PT. PRASADHA PAMUNAH LIMBAH INDUSTRI (PPLi) 22

Class I (Hazardous) Landfill Schematic 23

Fuels Blending These safe and secure facilities have been in operation since 1994, and are the only fully permitted fuels blending facilities in Indonesia. Fuel produced at PPLi is used by cement industry to displace virgin product fuels in the cement making process. 24

Stringent Specification for fuel to cement kiln Viscosity Solid diameter ph Ash content Heat content TOX content Total Sulfur Arsenic (As) Cadmium (Cd) Chromium total (Cr) Lead (Pb) Mercury (Hg) Thallium (TI) < 300 cp < 3 mm 5 10 < 10 % wt > 4,000 kcal/kg < 2 % wt < 1 % wt < 530 ppm < 100 ppm < 1,500 ppm < 5,000 ppm < 10 ppm < 50 ppm 25

Stabilization and Solidification Processes 26 Stabilization construction standard Government of Indonesia Regulations BAPEDAL No. Kep03/Bapedal/09/1995 and International US-EPA standards for hazardous waste prior to disposal in Class 1 Landfill Solidification for hazardous and less hazardous waste prior to disposal in Class 1 or Class 2 Landfills Various special pre-treatment and treatment processes including concrete encapsulation Quality Control Criteria tests : TCLP test, Compressive strength test min. 10 ton/m2, paint filter test and so on

P-Chem & Bio-plant System for Liquid Waste Various treatment options for Hazardous and Non Hazardous Liquid Waste Acid Neutralization Solids Separation Metals Precipitation ph Adjustment Flocculation/Coagulation Oil/Water Separation Biological Treatment PPLI P-Chem Facility 27

Laboratory and Technical Services Pre Acceptance. Receipt Control. Samples Analysis. Finger Print Test. QA/QC Analysis Waste Recipe Formulation. New Treatment Processes. Environmental Monitoring and Audits Permits and Operations Support. Research and Development Accredited to ISO / IEC 17025 Laboratory Management System by KAN (National Accreditation Committee) Accredited Environmental Laboratory by Ministry of Environment 28

Environmental Monitoring Ground water Surface water Air quality Effluent discharge Construction QA/QC Emergency Response 29

Transportation Services 16 m3 Roll Off Boxes Weighbridge 32 m3 Tankers Transfer Station 30

GPS Fleet Tracking System The GPS Fleet Tracking System allows accurate identification of transport fleet activities, and provides a numbers of benefits including : Improved fleet management Increased Driver Safety Improved employee morale Increased operational efficiency More professional approach to assets management Provides additional accuracy and verification of billing support for customers Improved scheduling for customers servicing 31

3. Drilling Waste Management (DWM) and Site Services for Oil & Gas Project 32

Drilling Waste Management (DWM) Service for Oil & Gas Drilling Site On-site recycling and off-site disposal service of drilling waste. Drilling Mud Fluid (Recycle) Separation System Solid (Waste) Transportation to off-site disposal 33

DWM Services at Drilling Projects Processing & treating drilling fluids 24/7 on rig location significantly reducing waste volumes for load/haul business Offshore Zero Discharge Provision and operation of vacuum units 24/7 for handling drilling muds and other liquids at Rig Sites 34

DWM Services at Drilling Projects Transport, logistics, handling and disposal of large volumes liquid waste streams 24/7 Handling of drilling muds at exploration and workover rig drilling locations in oil and gas sector ISO Tanks located at Rig Sites Decon Work and Tank Cleaning 35

Site Service (Clean-up) Sludge removal and contaminated land clean up Before removal After removal Segregation, Sorting and Recycling Activities 36

Site Service (Construction) Design and Construction of Lined Pits for Sludge or Mud Design and Construction of Containment Systems to Fuel Storage Facilities 37

Site Service (Water and Wastewater Treatment Services) Various Treatment Options Available: Acid Neutralization Solids Separation Metals Precipitation ph Adjustment Flocculation/Coagulation Oil/Water Separation Biological Treatment Activated Carbon Polishing 38

Asbestos Abatement Services Surveys Monitoring Abatement Transport Secure Disposal Certificates of Guaranteed Disposal Closure / Post Closure Monitoring 39

4. Soil Remediation for Oil Contaminated Soil 40

Soil Remediation Business Industrial Site Heavy Metals Oil VOCs Pesticide In-situ and On-site Remediation Out Outstanding Technologies Investigation Excavation Off-site Facility VOC Clean Soil On-site Remediation In-situ Remediation Oil 浄化後の地下水 Zero-Valent Iron PRB GW Remediation BioAngel Source Groundwater 41 Bio-Remediation

Soil Remediation for Oil (On-Site Technology) On-site soil washing The separation of treated and dense soil division by washing and classification Washing can combine to extraction by the solvent and collection by the flotation to develop an efficiency of treatment. Land farming Bioremediation providing some nutritious materials and oxygen for contaminated soil 42

Soil Remediation for Oil (In-Situ Technology) Injection Collection by pumping for oil dissolved into ground water by the injection of agent Oxidation composition by injecting oxidative agent (Fenton reaction) or micro babble with ozone into the ground water. Pumping and Treatment Pumping up the ground water and treatment of waste 43water

A Case Study Land Farming We have performed the largest of treatment (80,000m3) for the soil contaminated with oil in Japan Contaminated soil is cleaned up to 1 to 3 months per one batch that is 200 ton. The heating treatment on site is applied to the high concentration soil 44

A Case Study Injection (Oxidation Agent) This targets for the soil and the ground water contaminated with the gas oil and kerosene in aquifer. We can Inject some agent (oxidative agent or micro babble with ozone) into the soil in the case of low contamination. If the soil is high concentration, we can mix agent with excavated soil on the ground. Capable to decrease high concentration up to less than 1,000ppm 45 Fig. Picture of Injection overview Fig. Picture of direct mixing oxidative agent to the soil on the ground

Thank you very much! 46