Considering an average
garbage generation per capita per day as 0.450 Kg, we can assume a total
garbage generation for a population of 100,000 as 45,000 Kg per day
Proven on wide range of wastes
and feedstocks including
- Livestock
and agricultural wastes
- Biomass
- Sewage
and industrial sludges
- MSW
and catering wastes
- Food
industry wastes
- Vegetable
market waste
- Restaurant
Waste
- Farm
House/Cattle manure waste
- Slaughter
House/Tannery waste
- Presumed
waste
Suitable
locations for installation of plant
Hotel
premises, army/big establishment canteens (private/ government), residential
schools/colleges, housing colonies, religious places / temple trusts,
hospitals, hotels, sewage treatment plants, villages, etc.
The
Principle:
Add
bio degradable Solid waste into predigestor tank.
Use
of thermophilic microbes for faster degradation of the waste. The growth of
thermophiles in the predigestor tank is assured by mixing the waste with hot
water and maintaining the temperature in the range of 55-60oC. The hot water
supply is from a solar heater. Even one-hour sunlight is sufficient per day to
meet the needs of hot water.
After
the predigestor tank the slurry enters the main anaerobic tank where it undergoes mainly
anaerobic degra-dation by a consortium of archae-bacteria belonging to Methanococcus group. They produce mainly methane from the cellulosic materials in
the slurry.
The
undigested lignocellulosic and hemicellulosic materials then are passed on in
the settling tank. After about a month high quality manure can be dug out from
the settling tanks. Earth worm can be introduced to settling tank to speedup the process.There is no odour to the manure at all. The organic
contents are high and this can improve the quality of humus in soil, which in
turn is responsible for the fertility. The manure generated is high quality and can be used in fields.This manure can be supplied to farmers at the rate of 4-5 Rs. per Kg. Alternatively municipal gardens and local gardens can be assured of regular manure from this biogas plant.
As
the gas is generated in the main tank, the dome is slowly lifted up. This gas
is a mixture of methane (70-75%), carbondioxide (10-15%) and water vapours
(5-10%). It is taken through GI pipeline to the gas purification unit. Drains for
condensed water vapour are provided on line. This gas burns with a blue flame
and can be used for cooking as well.
The
gas generated in this plant is used for gas lights fitted around the plant. The
potential use of this gas would be for a canteen. The purified gas can be fed to bio fuel electric generator to produce electricity. Gas can be bottled and used to run vehicles.
Cost
details, saving and payback period from a biogas plant:
The
cost details and the savings envisaged from the plant are given in the
following table. The life of the plant could be 20-30 years and payback period
is 4-5 years.
Capacity
(Tons / Day)
|
Installation
Cost (Rs In Lacks)
|
Monthly
Operation and Maintenance Charges (Rs)
|
Bio gas Generation
|
Organic Manure
production (tons /day)
|
Area
Required M2
|
Power Generated from Bio Gas
|
Manpower to run plant
|
1
|
35
|
20,000/-
|
200 cum/day
|
0.2
|
450
|
250 kw/day
|
4
|
1 comment:
Indigenous oil refining incomplete combustion toxic gases and precipitation of diesel caused serious environmental pollution, refinery perimeter soil, surface and groundwater has been severely damaged.
Continuous Feed Pyrolysis Plants
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