RCEES OpenIR  > 环境水质学国家重点实验室
Volatile sulfide compounds (VSCs) and ammonia emission characteristics and odor contribution in the process of municipal sludge composting
Zhao, Shan; Yang, Xiaofang; Zhang, Weijun; Chang, Jiang; Wang, Dongsheng
2019-11-02
Source PublicationJOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
ISSN1096-2247
Volume69Issue:11Pages:1368-1376
AbstractMalodor is becoming the main secondary pollution in the municipal sewage sludge-composting process. Ammonia and volatile sulfide compounds (VSCs) are the representative odorants that generated and emitted during the composting process. The emission characteristics of ammonia and VSCs were studied at different workshops in a full-scale municipal sludge-composting plant in North China. Results show that ammonia was the most dominant odorant of all the workshops and relative high concentrations of VSCs were detected at sludge stacking yard and composting workshop. The odor pattern of VSCs at the composting workshop and stacking yard were different. The odor pollution occurred mainly in the first 15 days of the composting process, in which the odor contribution of ammonia increased with time and the VSCs contributed largely in the first 5 days. The cumulative release concentration of VSCs from compost materials was in the order of DMDS (dimethyl disulfide) > DMS (dimethyl sulfide) > CS2 > MT (methyl mercaptan), and the total VSCs release concentration was in the range of 50?3200 ?g?m(?3). The production of ammonia correlated to the temperature and nitrogen content and state changes, however, the production of VSCs was more complicated due to the reaction and transformation of VSCs. Optimization of aerobic composting conditions and process parameters should be further studied to reduce the emission of odor gas from compost. Implications: Along with the widespread use of sludge aerobic composting in China, the malodor pollution during the composting treatment is becoming a serious environmental issue. The odor pollution occurred mainly in the first 15 days, and ammonia was the main odorant of all the workshops and need to be controlled. Relative high concentrations of VSCs were detected at sludge stacking yard and composting workshop, however, the odor impact of VSCs were different. The generation of VSCs is more complicated than ammonia due to the reaction and transformation of VSCs.
Department环境水质学国家重点实验室
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/42683
Collection环境水质学国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Beijing Drainage Grp Co Ltd, Res & Dev Ctr, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Shan,Yang, Xiaofang,Zhang, Weijun,et al. Volatile sulfide compounds (VSCs) and ammonia emission characteristics and odor contribution in the process of municipal sludge composting[J]. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION,2019,69(11):1368-1376.
APA Zhao, Shan,Yang, Xiaofang,Zhang, Weijun,Chang, Jiang,&Wang, Dongsheng.(2019).Volatile sulfide compounds (VSCs) and ammonia emission characteristics and odor contribution in the process of municipal sludge composting.JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION,69(11),1368-1376.
MLA Zhao, Shan,et al."Volatile sulfide compounds (VSCs) and ammonia emission characteristics and odor contribution in the process of municipal sludge composting".JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION 69.11(2019):1368-1376.
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