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Waste Manag

Title:		Conversion of sulfur compounds and microbial community in anaerobic treatment of fish and pork waste
Author(s):		He R; Yao XZ; Chen M; Ma RC; Li HJ; Wang C; Ding SH;
Address:		"Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China. Electronic address: heruo@zju.edu.cn. Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, China"
Journal Title:		Waste Manag
Year:		2018
Volume:		20180407
Issue:
Page Number:		383 - 393
DOI:		10.1016/j.wasman.2018.04.006
ISSN/ISBN:		1879-2456 (Electronic) 0956-053X (Linking)
Abstract:		"Volatile sulfur compounds (VSCs) are not only the main source of malodor in anaerobic treatment of organic waste, but also pose a threat to human health. In this study, VSCs production and microbial community was investigated during the anaerobic degradation of fish and pork waste. The results showed that after the operation of 245?ª+days, 94.5% and 76.2% of sulfur compounds in the fish and pork waste was converted into VSCs. Among the detected VSCs including H(2)S, carbon disulfide, methanethiol, ethanethiol, dimethyl sulfide, dimethyl disulfide and dimethyl trisulfide, methanethiol was the major component with the maximum concentration of 4.54% and 3.28% in the fish and pork waste, respectively. The conversion of sulfur compounds including total sulfur, SO(4)(2-)-S, S(2-), methionine and cysteine followed the first-order kinetics. Miseq sequencing analysis showed that Acinetobacter, Clostridium, Proteus, Thiobacillus, Hyphomicrobium and Pseudomonas were the main known sulfur-metabolizing microorganisms in the fish and pork waste. The C/N value had most significant influence on the microbial community in the fish and pork waste. A main conversion of sulfur compounds with CH(3)SH as the key intermediate was firstly hypothesized during the anaerobic degradation of fish and pork waste. These findings are helpful to understand the conversion of sulfur compounds and to develop techniques to control ordor pollution in the anaerobic treatment of organic waste"
Keywords:		Animals Fishes *Red Meat Sulfhydryl Compounds Sulfur Sulfur Compounds/*chemistry Swine *Waste Management Anaerobic treatment Fish and pork waste Microbial diversity Odor Volatile sulfur compounds;
Notes:		"MedlineHe, Ruo Yao, Xing-Zhi Chen, Min Ma, Ruo-Chan Li, Hua-Jun Wang, Chen Ding, Shen-Hua eng 2018/04/11 Waste Manag. 2018 Jun; 76:383-393. doi: 10.1016/j.wasman.2018.04.006. Epub 2018 Apr 7"