Cost details, saving and payback period from a biogas plant

BIO GAS PLANT

Civil Construction of Biogas Plant

1.     Mixer with stirrer to mix hot water (1:2) to form a slurry,

2.     Aerobic Digester,

3.     Anaerobic digeter

Mechanical Items :

Gas Holding MS Steel Dome

Steel Fabricated Covers on Manure Pits,

Mixer Stirrer 

Air Compressor

Solar Water Heater

Water Pump and Slurry Pump

Water and Gas Pipelines on Plant area

Electric Fittings & Miscellaneous

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)	Methane Generation M3	Manure production (tons /day)	Area Required M2	Power	Manpower	Fresh Water (KL /day)	Hot water (Ltr / day of 50-60 C0)	Cooking Fuel (Equivalent to LPG Cyl / day)
1	30-35	8,000/-	100-120	0.1	300	5hp(2hr)	2	2	200	2-3
2	36-39	12,000/-	200-240	0.2	500	5hp(3hr)	3	3	400	4-5
4	60-65	22,000/-	400-480	0.3	700	5hp(3hr)	4	5	400	8-10
5	85-87	30,000/-	500-600	0.5	800	10hp (4hr)	5	7	600	12-14 (25Kw)
10	1 cr -1.2 cr	50,000/-	1000-1200	2.5	1200	15hp (4hr)	10	15	1000	22-25 (50Kw)

* This is an approximate cost for biogas generation plant and may increase by 10%–20%, depending on location, site-specific parameters, cost of materials, labour cost, etc., in different states/cities. Cost of additional infrastructure like office space, toilets, security, Godown, Shades and power generation will be extra, if required.

Rs – rupees; m3 – cubic meters; m2 – square meters; h – hour; kL – kilolitre; LPG – liquefied petroleum gas; kW – kilowatt; cyl –