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Basic Terms
Household garbage
The waste which is thrown away by the home owners statistically includes on average 1/3 organic degradable materials (food, paper & so on), 1/3 water and 1/3 non degradable materials (all kinds of plastic, metals, glass and mixed materials). The amount of waste thrown away by a home owner varies between 1-3 kg per day.

Dump
Sites where waste is disposed of for years without sorting raises all the issues mentioned above. When biogas is created, it pollutes the atmosphere and therefore, causes a greenhouse effect and brings contaminated water to the ground infecting the surrounding land and underground water.

Bio gas
Bio gas is composed of mainly CH4 and CO2. It is produced as the result of a break down of organic matter in the absence of oxygen that is created during a natural process which could take a large number of years to evolve in the dump or could be accelerated in an anaerobic reactor.

Bio Diesel
The biological fuel which is produced from plant and animal oils and is used as an alternative to fossil fuel for diesel engines.

CH4
Natural gas with a calorific value of 8,000 kcal/m3 may be used for the production of electricity and heat energy.

Plastic
Raw materials which are typically products derived from the oil industry such as PET, Polypropylene and Polystyrene - all are recycled as raw materials.

Metals
Metals are composed of ferrous-metals that are pulled away by magnets and non-ferrous metals.

Cogeneration
Utility of electricity production systems and utility of heat. Systems that utilize approximately 75% of invested energy.

Plastic recycling plant
A plant that utilizes plastic from waste by washing in water, crushing and granulating the material, which is used as a raw material in different plastic industries. Requirements are energy and water. Granulated raw material costs are between 400$ - 1200$ per ton, depending on the types of material.

Metal recycling plant
A plant that uses metallic materials for recycling as raw materials by grinding and compression. Raw material costs vary from 20$ for granulated iron up to 1500$ per ton for non-ferrous metals.

Urban Sewage treatment plant
In a plant which is composed of urban sewage, a process is carried out in order to refine water for secondary usage in agriculture and industry. Sludge is used in the process which may be then used for fertilizing and can be used to produce bio gas for energy production.

CDM
A trade of greenhouse gas using CH4 - it costs 21 times less than CO (carbon) usage.


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