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J Environ Manage

Title:		Migration and transformation of main components during perishable waste bio-drying process
Author(s):		Wang Y; Chen Z; Ma J; Wang J; Li L;
Address:		"State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China. Electronic address: yingwang2018_st@rcees.ac.cn. School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, PR China. Electronic address: tjuczx@tju.edu.cn. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China. Electronic address: jwma_st@rcees.ac.cn. School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300350, PR China. Electronic address: wangjun@tju.edu.cn. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, PR China; University of Chinese Academy of Sciences, Beijing, 100049, PR China; National Engineering Laboratory for VOCs Pollution Control Material & Technology, University of Chinese Academy of Sciences, Beijing, 101408, PR China. Electronic address: leel@rcees.ac.cn"
Journal Title:		J Environ Manage
Year:		2022
Volume:		20220716
Issue:
Page Number:		115720 -
DOI:		10.1016/j.jenvman.2022.115720
ISSN/ISBN:		1095-8630 (Electronic) 0301-4797 (Linking)
Abstract:		"Bio-drying can significantly reduce the moisture content of waste. The factors, functional microorganisms, and the transformation of main components were investigated during bio-drying of perishable waste. This study provides a scientific basis for the improvement of the bio-drying process and the necessity for secondary pollutant control. Reaction temperature and microbial biomass were main factors during the bio-drying process. The ideal bio-drying conditions included an initial temperature above 20 degrees C, intermittent ventilation, and appropriate microbial inoculation. The main microorganisms included Alcaligenes, Aquamicrobium, and Brevundimonas. From each gram of the carbonaceous, nitrogenous, sulfur-containing compounds, and phosphorus-containing substances in the perishable waste, approximately 0.74 g, 0.66 g, 0.40 g, and 0.94 g, respectively, were transferred as gas-phase products; consisting mainly of ammonia and volatile organic compounds: 2-heptanone, dimethyl heptanone, and benzene. In the leachate, the respective amounts of the carbonaceous, nitrogenous, sulfur-containing compounds, and phosphorus-containing substances were 3.20 x 10(-3) g, 4.08 x 10(-3) g, 0.33 g, and 9.52 x 10(-3) g, while those of the residual substances remaining in solid were 0.26 g, 0.33 g, 0.28 g, and 0.05 g"
Keywords:		*Desiccation Nitrogen Phosphorus Sulfur Sulfur Compounds *Volatile Organic Compounds Bio-drying Factor Olfactory effect Perishable waste Transformation;
Notes:		"MedlineWang, Ying Chen, Zexiang Ma, Jiawei Wang, Jun Li, Lin eng England 2022/07/20 J Environ Manage. 2022 Oct 1; 319:115720. doi: 10.1016/j.jenvman.2022.115720. Epub 2022 Jul 16"