Waste Management

Consumer Waste Management

Consumer Waste Management TECHNOLOGY DESCRIPTION

 

I. HISTORY

Landfills around Russian cities occupy vast areas, poisoning groundwater and air by putrifaction and fermentation products. Modern requirements for environmental protection require waste management. Obviously, food waste is an environmentally dangerous part of municipal waste and it is the most difficult to utilize. Paper, glass, textiles, wood, plastic, metal and even construction debris are transformed into secondary liquid raw materials after proper sorting and primary processing.

 

Cost of materials sorted out of waste is not very high and, therefore, its realization on the market brings enough high profits.

 

Every year it is generated in big cities millions of tons of consumer and industrial waste. For a city with 500 000 people population, it will be about 2 million m3 of consumer waste, and about 0.5 million m3 of industrial waste. It is a known fact that a large part of consumer waste can be recycled and is used in all world-leading countries for a long time. In Russia, there are problems of collection and sorting of waste, lack of proper legislative regulations and new recycling technologies.

 

II. RECYCLING

Recycling (processing) is collecting and processing systems of consumer waste components in products with use value. In this recycling process chain begins with waste identification suitable for recycling, followed by raw material sorting by type (glass, plastic, paper / cardboard, metals, rubber, etc.). Some putrescible waste (food waste, wood, foliage) will be composted.

 

New recycling technologies have a full range of consumer waste and include:

·        trash sorting,  metal, glass, polymers, paper, rags, debris separation and recycling;

·        deep food waste processing to produce biomethane from rotting process for gas generator, feed concentrates and organic fertilizers;

·        paper and cardboard recycling for lagging of residential and commercial constructions, "shell" for pipe covering, pressboard and package;

·        glass recycling with sorting by color and grinding to the desired by glass works size;

·        processing line of polymer waste (plastic bottles, packaging, package, plastics and etc.). in plastic;

·        processing line of rubber waste, including tires, in reclaim and rubber crumb;

·        processing line of electrical and electro-technical scrap in polymetallic concentrate and non-metallic fraction;

·        processing line of building refuse, that contents reinforced concrete structures, in secondary breakstone;

·        processing line of soil modifier enc.

 

Food waste, which contains almost half of all municipal waste, is to be disposed, so that they no longer would represent environmental or sanitary-epidemiological risk. Previously were developed huge pits, which bottom is lined with a thick plastic wrap to prevent the hit of highly toxic leachate into groundwater and surface waters. However, it is still dangerous sanitary-epidemiological objects because they cannot be reliably protected against pathogenic bacteria carriers, and therefore even a well-made dump should be located as far as possible from the city that fundamentally limits the possibility of cost reducing for municipal waste transportation. Previously dumped or burned residue with this approach was more than 50-60% of total consumer waste.

 

III. PROJECTING

LeMar delivers waste treatment facilities (consumer waist plants), including turnkey delivery (project development, equipment manufacturing, installation, commissioning and maintenance). LeMar partners, leading manufacturers in the United States, constantly update and improve technologies and equipment such as:

 

EXTEC – recycling equipment of plastic, cables, concrete, etc.

BANDIT INDUSTRIES – general equipment: conveyors, crushers, etc.

Recycling Equipment Manufacturing, Inc. – food waste recycling equipment

CP Manufacturing, Inc. – separation and desulfurization equipment

DCR Inc – glass treatment equipment

The supplied plant can have the most complete range of equipment for all types of consumer waste that can perform complete and total waste processing of all municipal waste (delivery can be changed the terms of customers). The proposed line allows, immediately sort all incoming trash without accumulating are direct to primary processing. Received secondary raw material or its offal and organic fertilizers will be sent to consumers. There is no need to use large lot. Such waste processing line can be placed in or outside the city that will significantly reduce cost of both garbage disposal and back transport of secondary raw materials and by-products.

 

One of the new approaches to food waste recycling is construction of special containers. It has been delivered separation technology of contaminated food waste with recycling of "clean" waste part in fodder concentrate, the other part of food waste containing solid particles, modern biotechnology – in compost high-quality and environmentally friendly organic fertilizer 3-4 times more nutritious for plants than rotted manure which can be immediately used on fields, in gardens, public parks, lawns, gardens itc. While rotting released methane gas, which is collected and fed to the gasifier to produce energy for their own use.

 

IV. PROPOSAL AND PROJECT ADVANTAGE

For a city with a population of 500 000 people, it is desirable to have a plant capacity of 200 000 tons per year or two plants of 100 000 tones per year. The LeMar offered plant, consisting of equipment manufactured by leading US companies, with a refining capacity of 100 000 tons per year is worth about 18 million dollars (it is twice cheaper than similar German and Italian plants). Full production with commissioning and turnkey delivery is 24 million dollars (not including land cost). As a result, such city will have completely waste-free environmentally friendly recycling of municipal waste.

 

The suggested arrangement combines:

-     high-technology equipment;

-     integrated approach to project implementation with turnkey delivery and implementation possibility with minimal cost through available equipment and its ease of installation and use;

-     possibility to cover all types of waste with complete processing of raw materials or finished goods;

-     deep processing of consumer waste along with an effective solution of the environmental problem maximizes efficiency and profit of production with an approximate payback period of less than 2 years;

-     production line from compost soil modifier allows the use of received product - modifier soils (soils) - in landscape sector, as it outperforms ordinary soil with fertilizers. Compost disposal of 20 thousand tons provides an opportunity to reduce volume of the municipal dump by almost 17 thousand m3 per year.

WORKING LINES FOR CONSUMER WASTE PROCESSING up to 120 000 tons per year:

1. SORTING STATION WSS 14 developed by  CP Manufacturing, Inc. sorts trash with separation of metal, glass, polymers, paper, rags, debris.

SPECIFICATION:

·        equipment for full sorting into separate elements;

·        maintenance personnel: 14 people;

·        length: 1800 cm;

·        width: 396 cm;

·        height: 382 cm;

·        2 conveyors;

·        7 separating elements;

·        metal separation magnet 50"x18" Crossbelt Magnet;

·        etc.

 

2. PROCESSING LINE OF FOOD AND ORGANIC WASTE with biomethane production for gas generator, feed concentrates and organic fertilizers, developed by IUT Global.

The process is divided in four stages:

Stage 1: Mechanical preparation

Organic and food waste segregated by separators are prepared in mechanical segregation units and concentrated.

Stage 2: Chopping

A special unit grounds waste and removes inorganic debris: sand, metal, glass, etc.

Stage 3: Anaerobic treatment

Organic matter is heated and transferred to the facility with organic anaerobic mixture and further into the bunker where will be homogenized and processed with bacteria with biomethane release. When thermophilic temperature of the process 52°C - 55°C, material moves down the container.

Stage 4: Water separation and composting

In the lower part of the container mass driven out with water separation in organic compost storage bunker. Settling takes approximately 4 weeks with biogas release to prepare high-quality compost. Biogas (methane) is squeezed by the compressor and used as fuel to power the gasifier.

3. PROCESSING LINE OF POLYMERIC WASTE (plastic bottles, packaging, packages, plastics etc.) with crumbling to granulated material and film of plastic, developed by CP Manufacturing, Inc.

 

Polymeric materials can be divided into two types:

·        packaging: bottles, plastic bags, packaging;

·        heavy polymersplastic materials.

 

Packaging plastics make up the majority of plastic waste. After input separation they arrive at the station where they will be crushed, pressed and packed for delivery at packaging manufacturers.

Heavy plastics are crushed in mills and transferred for additives in building materials and sold to plastics plants.

 

4 GLASS PROSESSING LINE, developed by DCR, Inc.

Includes:

·        machinery label peeling;

·        glass separation in green, brown and clear;

·        glass crumbling;

·        packing.

 

Occupied area: 640 m2

 

5. RUBBER PROCESSING LINE including tyres into reagent and rubber crumb.

Large chunks of rubber and wheels are cut and then grinded with metal cord and fabrics separation. Remaining crumb is separated into fractions and will be sold for subsequent use: large fraction for rubber production, and fine fraction for asphalt production.

 

Equipment includes:

·        2 cutting machines;

·        tyre strip cutting machine;

·        metal cord and fabric press separator;

·        rubber debris from metal cord and fabric cryosystem separator;

·        crumbling;

·        packing machine;

·        processing line of electrical and electro-technical scrap into polymetallic concentrate and non-metallic fraction;

 

6. PROCESSING LINE OF BUILDING MATERIALS from paper, cardboard, wood, polystyrene and foam plastic waste. 

 

This part divided in three processing lines for:

·        lagging of residential and commercial constructions, "shell" for pipe covering, pressboard and package;

·        building boards at the compressing machine with crumbled wood and epoxy resin additives,

·        hollow concrete blocks with cement, sand, water and additives.

Manufactured hollow concrete blocks are inert and physically strong with sufficient mechanical strength and low leachability, what is ideal in construction use. Main technical characteristics: the total area: ​​1581 m2

 

Capacity:

-         consumer waste recycling 48 tones/day;

-         manufacturing of construction materials 120 tones/day.

 

Consuming:

Electrical equipment 650 kW

water 10 tones/day

cement 13 tones/day

lime 1 tone/day

sand 60 m3 /day

 

7. Factory equipment

Fast assembly industrial building 70 m long and 24 m wide

3 bunkers

3 loaders 1.5 tones each

2 small dumpers

4 transformers 500 kW each

4 conveyors

Scales and other equipment

 

GENERAL SPECIFICITY OF THE PLANT:

Capacity – 150 000 tones (possible to supply any capacity) waste recycling per year (in 2 shifts)

Area: 5 ha

Required power: 1980 kW/h

Labor force: 160 people for two shifts.

Waste Management Video 1


 

Waste Management Video 2