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Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

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Subject: Microbiology × Author: Bala Kumari × End date: 2009 × Start date: 2004 × Type: Thesis ×
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    ThesisItemOpen Access
    Solid state anaerobic digestion of cattle dung and rice straw for biogas production
    (CCSHAU, 2009) Bala Kumari; Kapoor, K.K.
    Anaerobic digestion is gaining importance for agriculture and agro industries because the process couples the advantage of an energetic use of renewable resources with effective protection of environment. It has role in biogas recovery and production of organic manure. In India most of biogas plants are based upon cattle waste as substrate. Rice straw disposal is a challenge for rice growers. During present investigation digestion of cattle dung supplemented with rice straw at high solid concentration was studied. Cattle dung and rice straw were mixed in ratios 1:00, 1: 0.31, 1: 0.63, 1: 0.78 and 1: 0.94 on dry matter basis corresponding to 0, 5, 10, 12.5 and 15 % on fresh weight basis. After mixing of cattle dung and rice straw in above mentioned ratio total 3 kg substrate digested in 5 litre capacity digester. Digestion was carried out in batch type manner at 15.41% total solids (TS) for eight weeks. The maximum biogas production (28.97 l/kg) was observed by supplementation of cattle dung with rice straw at 5 % level. Highest volumetric biogas production of 0.310 l/l/d with digestion efficiency of 0.201 l/g TS and 0.233 l/g volatile solids (VS) added was observed on supplementation of cattle dung with rice straw at 5 % level in batch anaerobic digestion. Maximum degradation of TS (24.56 %) and VS (34.15 %) was observed on supplementation of cattle dung with rice straw at 5 % level in batch anaerobic digestion. Under semi-continuous mode with digestion period same as in batch system, maximum biogas production 30.84 l/kg was found at 5 % supplementation level of rice straw to cattle dung. This corresponded to volumetric biogas production of 0.330 l/l/day with digestion efficiency of 0.284 l/g TS, 0.377 l/g VS. Maximum degradation of 9.77 % TS and 13.60 % VS was observed at 5 % level of rice straw supplementation in semi-continuous anaerobic digestion. In batch digestion system N, P and K content of spent substrate at 5 % rice straw supplementation was 1.42, 0.58 and 1.75 % respectively. The N, P and K content of spent substrate under semi-continuous conditions at 5 % level of rice straw supplementation was 1.61, 0.63 and 1.79 % respectively.