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.
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
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.
The biological fuel which is produced from plant
and animal oils and is used as an alternative to fossil fuel for diesel engines.
Natural gas with a calorific value of 8,000 kcal/m3 may be used for
the production of electricity and heat energy.
Raw materials which are typically products derived from the
oil industry such as PET, Polypropylene and Polystyrene - all are recycled
as raw materials.
Metals are composed of ferrous-metals that are pulled away by magnets
and non-ferrous metals.
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
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.
A trade of greenhouse gas using CH4 - it costs 21 times less than
CO (carbon) usage.