Hazardous Waste Treatment Technology

Hazardous Waste Treatment Technology 29 October 2014 PADAENG INDUSTRY

CSR Policy & Principles PDI drives its business through innovation and sustainable growth. PDI accomplishes its social and environmental responsibilities, in close collaboration with all stakeholders. We take care of our people being our most valuable assets. We ensure our partners to act in accordance with social responsibility standards. Our success in CSR is a major criterion to evaluate our overall company performance. 4

PDI received CSRI Recognition Rising Star Award 2013 from Stock Exchange of Thailand 5

Initiating a new Business Structure PDI Eco Management : To address the critical needs in Thailand for sustainable waste management. To focus on Waste2Energy as a remedy for upcoming energy shortage crisis in Thailand. PDI Renewable Energy : To build a solar farm in Tak on top of the residue and neutralization ponds (total area 420 Rai). To study investments in wind farm and biomass. PDI Materials : To operate the ongoing Zinc activities and grow into added value materials even beyond Zinc. Padaeng Co. Ltd. Confidential and Copyright 2014 7

PDI ECO Business Business Activities Green Mining Mae Sot Clean Energy Renewable Energy Recycling Industrial Waste Management (Hazardous & Non) Products Die casted/ Galvanized Products Ethanol Fuel Steam Electricity Recycled Materials Eco Management Services Padaeng Co. Ltd. Confidential and Copyright 2014 9

Our future site for Eco Management Rayong Mae Sod Tak Fluidized Bed Technology Bangkok Rayong Capacity: +80,000 tons/year (150 tons/day) Specification: -Treat both hazardous & nonhazardous industrial waste & municipal waste. Padaeng Co. Ltd. Confidential and Copyright 2014 10

PDI Waste Management Key Contributions PDI Rayong facility can be transformed fast into a Hazardous Waste Incineration Center. PDI Rayong is located in the region with the highest industrial waste generation in Thailand. Waste logistics will be strictly and professionally handled and controlled. Innovation Center for learning and innovation of Waste Management will be established. Future Waste2Energy and Waste2Product projects will contribute to energy sustainability. PDI has extensive network of advanced technology supplier such as Submerged Plasma Technology. Padaeng Co. Ltd. Confidential and Copyright 2014 11

Competitive Advantage Location Reduce risk from transportation of hazardous waste Reduce transportation cost Support Eco-Industrial Town policy Technology Complete combustion Higher efficiency no additional fuel needed and energy recovery Lower emission several times lower than regulatory standards Reliability Support zero landfill and anti-illegal dumping policy ISO and relevant standard certified Ensure customers brand protection Padaeng Co. Ltd. Confidential and Copyright 2014 12

PDI s Eco Services Integrated Service Offers 1) Recommendation on segregation and storage at customers sites 2) Collection and transportation of waste, tailored services designed for customers. 3) Pre processing and combustion for both hazardous and non hazardous industrial waste. 1 2 3 4 Factory Waste Transportation Pre processing PDI Combustion site Non industrial sources Energy Padaeng Co. Ltd. Confidential and Copyright 2014 13

Waste Accepted Type of Industry and Type of Waste to be accepted Industries we can serve: Food & Beverage Electrical and electronics Garment manufacturing Paints & Solvent manufacturing Power generation Rubber & Leather Automotive Chemical Steel & Metal manufacturing Pharmaceutical Petroleum Agriculture Potential treatable waste: Paper, plastic, rubber, textile Sludge Chemical waste Liquid (Oil or Water based) Carbon dust Contaminated materials Organic Solvent Wood Slag Resin Mold sand Padaeng Co. Ltd. Confidential and Copyright 2014 14

Strengths of PDI Services Full Services: Consulting Collection Transportation Treatment Disposal Proven Technology Maximum pollution control Transparency Competitive price Padaeng Co. Ltd. Confidential and Copyright 2014 15

Fluidized Bed General Characteristics Complete combustion by using sand as fluidized medium Temperature range 850-950 C Energy recovery No/ minimal bottom ash No dioxin Lowest emission Medium size/ scale possible Pre-treatment is required Padaeng Co. Ltd. Confidential and Copyright 2014 16

Our Technology Fluidized Bed Combustor Fluidized bed is formed by blowing air underneath sand material through air nozzles. Shredded waste floats on and in between the hot fluidized sand bed and burns away to gas and ash. Ash which is light is blown along with the combustion gas stream into dust collecting facilities. Padaeng Co. Ltd. Confidential and Copyright 2014 17

Advantages of Fluidized Bed Fluidized bed creates mixed material turbulence and collision of sand and waste materials to ensure complete combustion of waste particles. Large freeboard zone help complete combustion of gas. Operating temperature at 950 C which is not high enough to produce thermal NOx, however, high enough to destroy virtually all hazardous materials. Padaeng Co. Ltd. Confidential and Copyright 2014 18

Pollution Control Process Flue Gas Treatment Facility Equipped with sophisticated Gas Cleaning System which can manage all types of emissions: Particulate or dust HCl, HF Heavy metal vapor Pb, Cd, As SOx, NOx Dioxin Hg Padaeng Co. Ltd. Confidential and Copyright 2014 24

Fluegas treatment: Reactor and Bag Filter Required to support existing scrubbers in order to comply with most strict environmental regulation Spray cooler cools fluegas using blowdown from scrubber Reactor provides optimum reaction conditions for additives Bag Filter catches all the residue 10/28/2014 Padaeng Co. Ltd. Confidential and Copyright 2014 25

Fluegas treatment: Dual Scrubber The first scrubber is kept as is Acidic Scrubber The second scrubber is modified Alkali Scrubber The cooling stage is maintained All liquid effluent from scrubber and condensate from cooling is reinjected in process Effluent free system 10/28/2014 Padaeng Co. Ltd. Confidential and Copyright 2014 26