History of Nubarashen landfillWas created about 50 years ago. Area is about 60ha. Located near Yerevan. Receives 340 tons per day(102000 t/y). Now landfill contains about 7.5 million tons of domestic waste. Have three blocks A,B,C(A
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History of Nubarashen landfill Was created about 50 years
ago.
Area is about 60ha.
Located near Yerevan.
Receives 340 tons per
day(102000 t/y).
Now landfill contains about 7.5 million tons of domestic waste.
Have three blocks A,B,C(A is already filled).
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Disadvantages of Nubarashen landfill Air pollution(waste smells bad).
Greenhouse gases(Nubarashen
landfill uses flaring but they are not able to
capture all the methane so part of it goes to the atmosphere and creates greenhouse effect).
Sanitary problems(good conditions for microbes to multiply).
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Actions of Yerevan Municipality Municipality of Yerevan signed a
contract on 10 March 2009 with the Japanese Shimizu
Corporation on Nubarashen Landfill Gas Capture and Power Generation project which will contribute to reduction of greenhouse gas emissions from the landfill and improvement of environmental and sanitary conditions.
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International experience in the sphere of waste treatment Composting
Incineration
Vermicomposting
Gas
power generators
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Ways to develop Nubarashen landfill 1.Sorting organic and inorganic
waste.
2.Building a gas power generators.
3.Building a gas pressure station.
What do we need for anaerobic methane formation?
1. No air.
2. Temperature range between 20-45 C(Mesophilic) or 49-70(Thermophilic).
3. Organic waste(most important).
These three factors exist at deep layers of Nubarashen landfill.