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Biogas production from cattle dung in winter using jaggery as a stimulant

KrishiKosh

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Title Biogas production from cattle dung in winter using jaggery as a stimulant
 
Creator Masih, Jeniffer Christeena
 
Contributor Anand, R.C.
 
Subject Biofuels, Productivity, Livestock, Wastes, Farmyard manure, Agricultural wastes, Sampling, Liquid wastes, Biological phenomena, Methane
 
Description Biogas is a clean, environmental friendly and renewable form of energy generated when
micro-organisms degrade organic materials anaerobically. The biogas production decreases drastically
in winter probably due to decrease in temperature, which in turn decreases the dehydrogenase activity
as observed in biogas slurry during winter. Thus, it becomes imperative to find out the stimulant
capable of enhancing biogas production from ligocellulosic materials in winter. Jaggery is a good
source of carbon and energy. It can stimulate the metabolic activity of micro flora. Therefore, the
present investigation jaggery was used as a stimulant for enhancement of biogas production from cattle
dung under solid-state anaerobic digestion. Cattle dung (3 kg) and 5, 10, 20, 30 and 40, 50 and 60 g
jaggery on dry weight basis were mixed together and were digested in 5 litre capacity digester for nine
weeks. The temperature range during present work was from 12 to 24ºC. The maximum biogas
production (40.0 l/kg), highest volumetric biogas production (0.480 l/l/d) and maximum degradation of
TS (27.2%) and VS (30.8%) was observed with supplementation of cattle dung with 40 g jaggery in
batch anaerobic digestion. The dehydrogenase activity (513.0 μg TPF/g sample/24 h) and cellulase
activity (182.2 μg glucose/g sample/24 h) was observed on 50th day of batch digestion at
supplementation of 40 g jaggery. In semi continuous mode with digestion period of seven weeks,
maximum biogas production 14.0 l/kg was found on supplementation of 40 g jaggery to cattle dung in
first four weeks and it decreased to 10.4 l/kg from fifth to seventh week. The dehydrogenase activity
(481.2 μg TPF/g sample/24 h) and cellulase activity (160.0 μg glucose/g sample/24 h) was observed on
50th day of semi-continuous digestion at supplementation of 40 g jaggery. In semi-continuous mode
with digestion period of seven weeks, maximum biogas production 24.6 l/kg was found at
supplementation level of 40 g jaggery along with 5% slurry and 1000ppm FeSO4 to cattle dung in first
four weeks and it decreased to 16.3 l/kg from fifth to seventh week. The dehydrogenase activity (697.0
μg TPF/g sample/24 h) and cellulase activity (233.9 μg glucose/g sample/24 h) was observed on 50th
day of semi-continuous digestion at supplementation of 40 g jaggery along with 5% slurry and
1000ppm FeSO4.
 
Date 2016-09-26T09:20:46Z
2016-09-26T09:20:46Z
2014
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/78765
 
Language en
 
Format application/pdf
 
Publisher CCSHAU