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Question
Give four reasons, why the use of cowdung in biogas preferred to burning of cowdung cakes.
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Solution
Use of cow-dung in biogas is preferred to burning of cow-dung cakes because:
- Biogas does not produce any smoke and hence causes no pollution.
- Biogas leaves behind no ash on burning.
- Calorific value of biogas is very high as compared to cow-dung cakes.
- Biogas can be used for driving engines of tube wells while cow-dung cakes can not be used for this purpose.
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In Kunjpura village, located in Karnal district, Haryana, Aditya Aggarwal and his older brother Amit Aggarwal run Tee Cee Industries, a steel plant set up by their ancestors in 1984. Along with this, they also run a gaushala that houses 1,200 cows that can no longer produce milk. The cow shelter was manageable but running the steel plant was turning out to be expensive because they spent a whopping Rs 5 lakh every month on electricity. The brothers struck upon an idea. Why not run the factory with the biogas produced from cow dung from the shelter and other gaushalas, along with a bio and agri-waste like sewage, farm waste, etc. This led Aditya and Amit to start Amrit Fertilisers, a biogas project, in 2014, without any government support. |
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(i) Biogas has a lower calorific value.
(ii) Animal dung cake has a higher calorific value.
(iii) Biogas has a high heating capacity.
(iv) Biogas burns without smoke.
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