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Hazardous WasteTreatment Technology

29 October 2014 PADAENG INDUSTRY

Building on the Past

3Padaeng Co. Ltd. Confidential and Copyright 2014

• 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.

CSR Policy & Principles

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

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Renewable Energy

Eco Management

Recycling Materials

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Growth Business Model

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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.

Initiating a new Business Structure


PDI

PDI Energy PDI Eco PDI Materials

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PDI’s new Corporate Structure


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PDI ECO Business

Business Activities

Products

Green Mining Mae Sot Clean Energy

Renewable Energy

Industrial Waste Management (Hazardous & Non)

Recycling

ElectricityEthanol Fuel SteamEco

Management Services

Die casted/ Galvanized Products

Recycled Materials


Tak

Rayong

Mae Sod

Bangkok

Rayong

Fluidized Bed Technology

• Capacity: +80,000 tons/year (150 tons/day)• Specification: -Treat both hazardous & non-hazardous industrial waste & municipal waste.


Our future site for Eco Management

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.


PDI Waste Management – Key Contributions

LocationReduce risk from transportation of hazardous wasteReduce transportation costSupport Eco-Industrial Town policy

Technology Complete combustionHigher efficiency – no additional fuel needed and energy recoveryLower emission – several times lower than regulatory standards

ReliabilitySupport zero landfill and anti-illegal dumping policyISO and relevant standard certifiedEnsure customers’ brand protection

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Competitive Advantage


PDI’s Eco Services

Integrated Service Offers

1) Recommendation on segregation and storage at customers’ sites2) Collection and transportation of waste, tailored services designed for customers.3) Pre‐processing and combustion for both hazardous and non‐hazardous industrial

waste.

Factory

Non‐industrial sources

Waste Transportation Pre‐processing PDI Combustion site1 2 3 4

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http://commons.wikimedia.org/wiki/File:Industrial_factory.png

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Waste Accepted


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

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

Type of Industry and Type of Waste to be accepted

Strengths of PDI Services

• Full Services:

ConsultingCollectionTransportationTreatmentDisposal

• Proven Technology

• Maximum pollution control

• Transparency

• Competitive price

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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

Presenter

Presentation Notes

Reference Fly Ash study by TU Vienna

• 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.

Our Technology ‐ Fluidized Bed Combustor


• 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.

Advantages of Fluidized Bed


Fly ash Study by TU Vienna


Presenter

Presentation Notes

Hg Mercury Pb Lead

Fly ash Study by TU Vienna (continued)


Our system overview

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Combustion

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Waste treatment capacity 200-300 t/d Fluegas flow rate approx 40,000-50,000 Nm³/h


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

Pollution Control Process


Flue Gas Treatment Facility

Fluegas treatment: Reactor and Bag Filter

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• 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


Fluegas treatment: Dual Scrubber

• The first scrubber is kept as isAcidic Scrubber

• The second scrubber is modifiedAlkali Scrubber

• The cooling stage is maintained

• All liquid effluent from scrubber and condensate from cooling is reinjected in process

Effluent free system

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Mercury Removal (wet scrubber)

Cleaned gas

HCl

Hg

cont

amin

ated

ga

s

Hg2Cl2Hg

+ H

gCl 2→

Hg 2

Cl 2

Electricity generation

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Electricity generation

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