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Extraction and Analysis of Microbial Phospholipid Fatty Acids in Soils
Published on: August 26, 2016
Influence of biochar on volatile fatty acids accumulation and microbial community succession during biosolids
Mukesh Kumar Awasthi1, Sanjeev Kumar Awasthi2, Quan Wang2
1College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi Province 712100, PR China; Department of Biotechnology, Amicable Knowledge Solution University, Satna, India.
Abstract:
The impact of biochar amendment on volatile fatty acids (VFAs) and odor generation during the biosolids-wheat straw composting was investigated. Five treatments were design using the same mixture of biosolids-wheat straw with different dosage of biochar blending (2%, 4%, 8% and 12% on dry weight basis) and without biochar applied treatment served as control. The results of VFAs and Odour Index (OI) profile designated that compost with 8-12% biochar became more rapidly humified with less quantity of VFAs and OI generation content compared to control. Consequently, the VFAs degrading and total bacterial abundance are also significantly higher recorded in 8-12% biochar than 2% biochar and control. In addition, 8-12% biochar applied treatment has significantly maximum close correlation among the all physicochemical and gaseous emission parameters. Finally, results designated that higher dosage of biochar (8-12% biochar) was more feasible approach for biosolids composting.
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