BAREILLY, 12 September 2017 : Central Avian Research Institute scientists have developed a novel DAC technology for all-weather biogas production exclusively from poultry excreta.
Due to industrialization and intensification of poultry farming has led to generation of poultry wastes to the tune of 28-30 million metric tonnes per annum.
This technology was tested on a pilot biogas plant comprising of anaerobic digester (200 lit) with various common components like inlet pipe, outlet pipe, gas collector, biogas compressor, gas cylinders etc, Indian Council for Agricultural Research (ICAR)'s-Central Avian Research Institute said in a statement.
The signifying point of this technology is that only poultry excreta are required for biogas production. There is no need to add cow dung which is commonly being mixed for biogas production from poultry excreta in other methods, the statement added.
This technology also helps in conservation of water as used slurry of digester is reutilized again and again as dilutor for poultry excreta.
Round the year i.e. both during summer and winter biogas production is possible from this technology. It is pertinent that, in India, most of the biogas plants become non-functional during winter season due to lower ambient temperature.
In ‘DAC’ technology 12-13 to 19-20 kg poultry excreta is required for production of about one cubic meter of biogas during summer and winter seasons, respectively. This quantity of biogas is sufficient for cooking 3-times meals of an average family comprising 4-5 members.
This can also be used as heat source at poultry farm. Spent slurry of poultry biogas has good manure value and germination potential and can be easily applied in agricultural fields for organic crop production without burning effect on plants which is a common problem with crude poultry excreta.
This technology may be helpful in self sustainability of rural poultry farmers in terms of their energy demand.
The excreta of 5000 layers birds has capacity to produce approximately 4100 kg biogas per annum whose market value will be around INR 131.000, if cost of biogas is considered at the rate is considered INR 32 per kg. There is potential to produce around 128 tonnes of manure from spent slurry.
The value of this manure will stand around INR 256,000 on urea, phosphate, potash and micronutrient equivalence basis. Therefore, this technology has great potential of value addition to the tune of 5-6 times from invaluable poultry excreta.
Besides, generating the financial gains to the poultry farmer, this technology has enormous positive impact on environment by drastically reducing pollutants, bad odour and flies thereby also helping in accomplishing the Sawachch Bharata Mission.
