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Waste Manag


Title:"Emission of volatile sulphur compounds during swine manure composting: Source identification, odour mitigation and assessment"
Author(s):Gao X; Yang F; Cheng J; Xu Z; Zang B; Li G; Xie X; Luo W;
Address:"Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China. Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Sanya Institute of China Agricultural University, China Agricultural University, Sanya 572025, China. Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China. Electronic address: xiexiaomin@sdu.edu.cn. Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Sanya Institute of China Agricultural University, China Agricultural University, Sanya 572025, China. Electronic address: luowenhai@cau.edu.cn"
Journal Title:Waste Manag
Year:2022
Volume:20220908
Issue:
Page Number:129 - 137
DOI: 10.1016/j.wasman.2022.08.029
ISSN/ISBN:1879-2456 (Electronic) 0956-053X (Linking)
Abstract:"This study aimed to identify the sources of volatile sulphur compounds (VSCs) and evaluate their mitigation by ferric oxide (Fe(2)O(3)) during swine manure composting. Four chemicals, including l-cysteine, l-methionine, sodium sulphite, and sodium sulphate, were further added to simulate organic and inorganic sulphur-containing substances in swine manure to track VSC sources during composting. Results show that sulphur simulants induced the emission of six common VSCs, including methyl sulphide (Me(2)S), dimethyl sulphide (Me(2)SS), carbonyl sulphide (COS), carbon disulphide (CS(2)), methyl mercaptan (MeSH), and ethyl mercaptan (EtSH), during swine manure composting. Of them, COS, CS(2), MeSH and Me(2)SS were predominantly contributed by the biodegradation of methionine and cysteine, while Me(2)S and EtSH were dominated by the reduction of sulphite and sulphate. Further Fe(2)O(3) addition at 1.5 % of total wet weight of composting materials immobilized elemental sulphur and inhibited sulphate reduction to reduce the emission of VSCs by 46.7-80.9 %. Furthermore, odour assessment indicated that adding Fe(2)O(3) into composting piles significantly reduced the odour intensity level to below 4, the odour value of VSCs by 47.1-81.3 %, and thus the non-carcinogenic risk by 68.4 %"
Keywords:Animals *Carbon Disulfide *Composting Cysteine Manure Methionine Odorants Sulfates Sulfhydryl Compounds Sulfides Sulfites Sulfur Sulfur Compounds Swine Ferric oxide Odour mitigation and assessment Source identification Swine manure composting Volatile sul;
Notes:"MedlineGao, Xingzu Yang, Feiyu Cheng, Jingwen Xu, Zhicheng Zang, Bing Li, Guoxue Xie, Xiaomin Luo, Wenhai eng 2022/09/12 Waste Manag. 2022 Nov; 153:129-137. doi: 10.1016/j.wasman.2022.08.029. Epub 2022 Sep 8"

 
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