• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

LEMNA INTERNATIONAL, INC., USAMinneapolis, Minnesota

Founded in 1983 Specializes in• Infrastructure, Environmental

and Energy projects• Resources Recovery

Services• Design/Build with financing• Build-Operate-Transfer (BOT)• Financial solution• Process Technology• Planning, Management & Operation

Global Reach• Has completed 500 projects

in 21 countries• Based in the USA

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

• In most countries, solid waste are being dumped in landfills which take up a lot of land and pollute surface and groundwater, ruin soils. and create smell, insects and rodent problems.

• With increased populations in urban centers around the world, this problem is becoming more serious with every passing day. People object to living near these dumps which pose health problems and affect their livelihood.

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

• Lemna pioneers the concept of a Lemna Eco-Center which is an integrated facility to treat and recycle solid waste on a large scale.

• These centers can treat 1,000 to 3,000 tons per day of municipal waste, servicing population of 1 million and up.

• We require much less land than landfills and will not ruin land and generate pollution to the air, surface and groundwater.

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

The first Lemna Eco-Center is located in Ho Chi Minh City, the largest city in Viet Nam with a population of over 12 million people. This facility has a capacity of 1,200 tons per day and can be expanded to over 2,000 tons per day. It is operating since 2010 and serves as a model for the world in solid waste treatment and recycling.

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

• Lemna is prepared to implement such systems all over the world, especially for large urban centers in Asia, Africa, and elsewhere.

• We will design, construct, provide equipment and technology, and operate such plants.

• We will also structure the complete financing package for these projects.

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

Project Planning:

1. Client agrees in principle to supply land and deliver solid waste to a Lemna Eco-Center on a long-term basis.

2. Lemna will conduct a Feasibility Study and Investment Report to determine viability of project (including site investigation).

3. Lemna will present the findings to be verified by an independent National or International Expert appointed by the client if required.

4. A long-term contract will be negotiated with the client.5. Lemna will structure and arrange for the project financing. 6. Final design will be conducted by Lemna.7. Construction will be performed by international and local

construction firms to national standards.8. Technologies and technical processes will be provided by

Lemna.9. Lemna will train a local team under Lemna’s supervision for

operation.

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

VIETSTAR SOLID WASTE TREATMENT PLANT THAI MY VILLAGE, CU CHI DISTRICT, HCM CITY

Tipping area

Waste sorting areaPlastic recycling

Weighbridge

Composting area

Final compostprocessing

Workshop

INVESTOR, OWNER & OPERATOR: LEMNATOTAL INVESTMENT: 63 MILLION USD

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

WASTE CHARACTERISTICS

Mixed Solid Waste, more than 15 compositions.

Loose and inside bags.

Strong smell when arrive.

High humidity 65%-75% moisture content, leachate.

Seasonal and regional change in composition.

Aggressive environment.

Containing unwanted materials harming to mechanical

equipment like nylon strings, clothes, wood and

construction waste.

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

MIXED MUNICIPAL SOLID WASTE

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

LANDFILL RECYCLING Large land area required Area of land required is less than for landfill

Expensive and extensive site preparation needed Site preparation is simple and inexpensive

Lining must be provided for each cell, potential leachate pollution

LITTLE lining needs to be provided where necessary

Gas venting or collection system must be included NO gas venting or collection required

NO air emissions collection and treatment required

NO air emissions collection and treatment required

NO ash handling system is necessary NO ash handling system is necessary

Leachate and gas monitoring requiredUnforeseen potential pollution to the environment

NO monitoring requiredNO potential pollution

No saleable by-product produced Free incoming materials to produce saleable by-product : COMPOST, PLASTIC PELLET,

CLEAN SOIL, RDF, ETC.

Medium capital costs Medium capital costs

Low operations & maintenance costs Medium operations & maintenance costs

COMPARISON OF SOLID WASTE MANAGEMENT TECHNIQUES

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

Mixed Solid Waste with high moisture content only suitable for landfilling or recycling, since incineration is very expensive (high energy consumption), while landfilling requires large land areas that is not a suitable alternative for any large urban center in the world

LEMNA selected to develop recycling plant as an optimal solution for the

Municipal Solid Waste

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

CONSTRUCTION

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

VIETSTAR FACILITY

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

CURRENT FACILITY LAY-OUT

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

PROCESS FLOW

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

WASTE RECEIVING AND SORTING

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

SORTING EQUIPMENT

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

WASTE SORTING EQUIPMENT

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

WEIGH BRIDGE

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

TIPPING AREA – WASTE RECEIVE

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

LOADING WASTE FOR SORTING

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

SORTING LINE

BAG BREAKER TO BREAK PLASTIC BAGS

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

SORTING LINE

TROMMEL SCREEN FOR WASTE SEPARATION

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

SORTING LINE

MAGNETIC SEPARATOR - CONVEYORS ORGANIC MATTER FOR COMPOSTING

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

MANUAL SORTING FOR PICKING PLASTICS

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

PLASTICS FOR RECYCLING

MATERIALS FOR RECYCLING

ORGANICS FOR COMPOSTING

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

PLASTIC RECYCLING EQUIPMENT

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth levelPLASTIC RECYCLING

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

Quality control at conveyor belt

Production

Product testing

Bagging

Store & Inventory

Meeting criteria

Meeting criteria

Re-Process

Not meeting criteria

Preliminary cleaning of incoming materials

Quality control of materials

Material weighing

Not meeting criteria

PLASTIC PROCESSING

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

Plastics from waste is very dirty, we first shred it and let it goes through the sand remover to separate contamination

PLASTIC PROCESSING (Cont’d)

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

• After elimination of undesirable components, materials enter the production lines

• They will be shredded into small pieces, size 30mm-60mm.

• They will be next washed in washing tank and gone through high speed washer

PLASTIC PROCESSING (Cont’d)

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

• Dewatering in centrifugal machine at high speed before entering dryer

• Blower will suck materials into silo then screw materials to the extruder at 1900C – 3200C.

• Materials will be transformed from a liquid phase to solid pellets after cooling and cutting for bagging and storage

PLASTIC PROCESSING (Cont’d)

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

PLASTIC PROCESSING (Cont’d)

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

PLASTIC PRODUCTS

We can separate clear plastics and color plastics to get final HDPE pellets as follows:

Selling price of clear HDPE is 1.5 to 2 times the price of black HDPE

Clear HDPE Black HDPE

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

Recycled plastic are used to make HDPE products. They are accepted in the market place and being sold as aluminum plates for the construction sector, HDPE pipes and pallets, etc.

FINAL PRODUCTS

Aluminum composite panels

Water – Pipes Plastic - Pallets

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

WASTE WATER TREATMENT

LAGOONWASTE WATER

TREATMENT PLANT

RE-USE TREATED WATER FOR WASHING PLASTICS

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth levelCOMPOST PROCESSING

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

COMPOST TURNING – PHASE I

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

COMPOST SIEVING PHASE I

SIEVING MACHINE SCREEN OF SIEVING MACHINE

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

COMPOST ING PHASE II

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

FINAL COMPOST SIEVING

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

BASIC COMPOST BAGS

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

SELLING COMPOST

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

ENHANCED COMPOST(BIO-ORGANIC FERTILIZER)

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

REJECTS FROM SORTING AND COMPOSTING - RDF PRODUCTS

(REFUSE DERIVED FUEL)

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

In summary:

Instead of burying solid waste, a Lemna Eco-Center recycles waste.

1. Plastic recycling to produce pellets which can be used for manufacturing plastic products locally or for export.2. High-quality organic compost which can reduce the use of chemical

fertilizers. This product will also rejuvenate soils damaged by chemical fertilizers and overuse of crop planting.

3. Harmful waste landfills will be reduced and eventually eliminated. Lemna Eco-Centers will not damage land and will create local jobs for thousands of people. We also require much less land than landfills.4. The cost of a Lemna Eco-Center is much less than the cost of a waste incineration plant.5. Lemna will provide a turnkey service to design, build and operate such plants.6. Lemna will also help arranging financing for such plants.

• Click to edit Master text styles– Second level• Third level

– Fourth level» Fifth level

Thank you for your

attention