BIOMETHANATIN
PLANT BASED ON ABATTOIR SOLID WASTES AT RUDRARAM, ANDHRA PRADESH
| | : | Rudraram,
Medak Andhra Pradesh | | | : | February,
2002 | | | : | M/s.
Al - Kabeer Exports Pvt Ltd, Hyderabad is operating and maintaining the plant
| | | : | Central
Leather Research Institute, Chennai | |
| : | Biogas
Induced Mixing Arrangement (BIMA) Technology of M/s ENTEC, Austria |
- Technology Institution for Supervision
| : | Central
Leather Research Institute, Chennai | BACKGROUND About
15 million cattle and 1 million sheep and goat are being slaughtered annually
in the country. The waste generated in the abattoirs including the liquid and
solid wastes is detrimental to the environment. The solid wastes are generally
collected and dumped in the pits and then carried away to landfill or dumping
sites, thus adversely effecting the environment. In addition, enormous resources
having potential for energy generation are wasted. The solid wastes generated
from the abattoirs viz. gobar, paunch content, feed wastes, have large potential
for biomethanation technology for energy recovery from slaughterhouse wastes and
their treatment has been installed at M/s Al kabber, Rudraram, Medak in Andhra
Pradesh. TECHNOLOGY INVOLVED Biogas Induced Mixing Arrangement
(BIMA) Technology, patented by M/s. Entec, Austria has been used for Anaerobic
Digestion of Wastes. WASTE ARRANGEMENT, BIOGAS AND MANURE UTILIZATION Solid
wastes generated in the abattoir of M/s. AKEL are used as feedstock in the biomenthanation
plant. Biogas is used as fuel in the boiler to generate steam, while nutrient
rich manure is sold to farmers. MATERIAL BALANCE Material Balance
calculation of the plant for a feed of 60 tonnes / day of raw wastes is as under:
| | : | 60
tonnes / day | - Make up water
available from effluent treatment plant
| : |
20 m3 / day | - Volatile Solids
Loading Rate
| : | 5.732 tonnes /
day | | | : | 26 Days |
| | : | 55% |
- Volatile Solids Destroyed
| : |
3.153 tonnes / day | | | : | 2600 m3 / day |
- Biofertilizer Production
(70%
solids) | : | 7 tonnes / day |
ENERGY BALANCE Energy balance calculation of the plant
is as under:
- Auxiliary power requirement
| : | 420
kWh / day | - Electrical
energy equivalent of biogas generated from plant
| : | 4680
kWh / day | At present, biogas is being utilized as fuel in
the boiler to generated steam. MANPOWER REQUIREMENT FOR PLANT
- Engineers [Civil/ Electrical/
Mechanical]
| : |
2 | | | : | 1 |
| | : | 1 |
COST ECONOMICS Total cost of the project is Rs.3.75 crore,
50% of this has been borne by AKEL and rest by NBB/MNES. BENEFITS ACHIEVED
- Fuel Savings/ Revenue Earned: The plant is saving about 420 klitres
of furnace oil per annum.
- Waste Management/ Cleanliness: The project
has demonstrated an eco- friendly solid waste management technology for abattoir
industry with a view to minimize odour nuisance significantly.
OPERATIONAL
DIFFICULTIES AND TROUBLE SHOOTING Problem in operating the filter pres
was experienced during commissioning of the plant. But by selecting appropriate
filter cloth, the filtration of the digested sludge was improved. | 
