文献类型：期刊文献

英文题名：Degradation Characteristics and Effect Mechanism of Estrogens During Aerobic Composting of Chicken Manure Based on the Orthogonal Test

作者：Liu, Wang-Rong[1]; Liang, Zi-Wei[1,3,4]; Wu, Jun-Wao[2]; He, De-Chun[1]; Li, Yan[1]; Hu, Jia-Wu[1]; Zou, Meng-Yao[4]; Ning, Jian-Feng[3]; Liang, Yan-Qiu[2]

机构：[1] Guangdong Engineering & Technology Research Center for System Control of Livestock and Poultry Breeding Pollution, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the PRC, Guangzhou, 510655, China; [2] Faculty of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang, 524088, China; [3] Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China; [4] Zhongkai University of Agriculture and Engineering, Guangzhou, 510550, China

年份：2024

外文期刊名：SSRN

收录：EI(收录号：20240170490)

语种：英文

外文关键词：Animals - Calcium compounds - Fertilizers - Magnesium compounds - Manures - Moisture - Moisture determination

外文摘要：Environmental estrogens are currently a prominent research topic and poultry manure serves as a crucial source of them. In this study, the degradation characteristics and effect mechanism of 6 estrogens (E1, 17α-E2, 17β-E2, E3, 17α-EE2, and DES) during the aerobic composting of chicken manure were investigated. An orthogonal test with four factors (aeration rate, calcium-magnesium-phosphorus fertilizer (Ca-Mg-P fertilizer), coconut shell biochar, initial moisture content) and three levels of aerobic composting was conducted over a 45-day period to monitor the changes in estrogens and basic parameters. The results showed that the factors affecting estrogens degradation rate ranked as: initial moisture content>Ca-Mg-P fertilizer>aeration rate>coconut shell biochar. All these factors significantly influenced the abundance of estrogens-degrading genera. Optimal compsting conditions for degrading estrogens were found to be addition 10% coconut shell biochar, maintaining an initial moisture content of 60%, and using an aeration rate of 0.08 L?min-1?kg-1DM. During the composting process of different treatments, five known estrogens-degrading genera were observed with high relative abundance (up to 31.08%), and the predominant estrogens-degrading genera were Staphylocaccus and Brachybacterium for 17α-E2, 17β-E2, E3, 17α-EE2, and DES, and Pusillimonas for E1; the composition of microbial community structure changed significantly, and the dominated environment factors effected on the composition and succession of these genera were C/N and MC. The research results can provide theoretical basis and practical reference for the effective degradation of estrogens during the composting process of chicken manure. ? 2024, The Authors. All rights reserved.