Comparative evaluation of different pretreatment methods on biogas production from paddy straw
Journal Title: Journal of Applied and Natural Science - Year 2017, Vol 9, Issue 3
Abstract
The present investigations observed the effect of chemical, enzymatic, biological and micro-wave pretreatment on paddy straw for enhancement of biogas production. Chopped and soaked paddy straw was subjected to chemicals Na2CO3 (1%) and NaOH (2%) concentrations, microwave irradiation (720 watt, 30 min), fungal (spawn impregnated, 7 days) and crude silicase (24 hrs) pretreatment. The proximate and chemical analysis showed 16.0% and 12.1% reduction in lignin and silica content in the case of Na2CO3 pretreated paddy straw whereas 23.0% and 46.8% reduction was observed in enzymatic pretreatment with 43.7% and 31.1% enhancement in biogas production respectively. This clearly indi-cates that Pleurotus ostreatus MTCC 142 is silicolytic as well as ligninolytic in nature. Enzymatic pre-treatment was also compared with, microwave (30 min) and fungal pretreatment which showed 31.2% and 32.8% reduction in silica content enhancing biogas production by 19.7% and 42.6% respectively. NaOH pretreatment showed a maximum increase in biogas production i.e. 49.7% as compared to 1% pretreated sample which showed 28.5% enhancement. The results indicated that the NaOH pretreatment was one of the potential methods to increase biogas production of paddy straw.
Authors and Affiliations
Vishwas Garg, Rouf Ahmad Dar, Urmila Gupta Phutela
Keywords
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- EP ID EP286750
- DOI 10.31018/jans.v9i3.1396
- Views 87
- Downloads 0
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