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Environ Sci Pollut Res Int

Title:		Characteristics of leachate from refuse transfer stations in rural China
Author(s):		Xiang H; Cheng L; Liu W; Wang S; Zhang Y; Su L; Tan C; Li Y;
Address:		"Ministry of Ecology and Environment, Nanjing Institute of Environmental Sciences, 8 Jiangwangmiao Street, Nanjing, 210042, People's Republic of China. College of Civil Engineering and Transportation, Hohai University, No.1 Xikang Road, Nanjing, 210024, People's Republic of China. Ministry of Ecology and Environment, Nanjing Institute of Environmental Sciences, 8 Jiangwangmiao Street, Nanjing, 210042, People's Republic of China. sulianghu@nies.org. Department of Municipal Engineering, Southeast University, Nanjing, 211189, People's Republic of China. College of Civil Engineering and Transportation, Hohai University, No.1 Xikang Road, Nanjing, 210024, People's Republic of China. liyuping@hhu.edu.cn"
Journal Title:		Environ Sci Pollut Res Int
Year:		2023
Volume:		20220809
Issue:		2
Page Number:		3056 - 3069
DOI:		10.1007/s11356-022-22449-3
ISSN/ISBN:		1614-7499 (Electronic) 0944-1344 (Linking)
Abstract:		"The properties of leachate from refuse transfer stations (RTSs) in rural China were indefinite. In this study, a total of 14 leachate samples from RTSs in nine provinces of China were characterized for their pH, electric conductivity, chromaticity, concentration of organic substances, nitrogen distribution, volatile organic compounds (VOCs), organic phosphorous pesticide, and heavy metals. The structural composition of fluorescent dissolved organic matter (FDOM) was also determined. To evaluate the leachate pollution potential in this study, a leachate pollution index was derived and used. Chromium (Cr) was the most polluting heavy metal present in rural leachate. Ethanol and ethyl acetate were the most frequently detected VOCs at high concentrations. Three-dimensional fluorescence excitation-emission matrix spectra were used to characterize the FDOM. Three components, tryptophan (C(1)), tyrosine-like (C(2)), and humic acid- and fulvic acid-like (C(3)) substances, were identified from all 14 samples. Tryptophan was the major component of FDOM and present in 45.7% of the samples by calculating the fluorescence intensity percentage, on average. Pearson correlations revealed that the fluorescence intensity of C(1) and C(3) was strongly related to soluble chemical oxygen demand and dissolved oxygen carbon, while C(2) had significant positive correlations with ammonia nitrogen and total phosphorus of the solid waste. This study provided detailed data and findings that could serve as a preliminary basis for broadening options for the treatment and management of leachate from rural RTSs in China"
Keywords:		"Tryptophan *Metals, Heavy Biological Oxygen Demand Analysis Dissolved Organic Matter *Volatile Organic Compounds China Nitrogen/analysis Spectrometry, Fluorescence/methods Humic Substances/analysis Factor Analysis, Statistical Eem Leachate Leachate charac;"
Notes:		"MedlineXiang, Huiming Cheng, Le Liu, Weiye Wang, Saier Zhang, Yi Su, Lianghu Tan, Chaoqun Li, Yuping eng 2019YFD1100302/national key research and developent program of China/ Germany 2022/08/10 Environ Sci Pollut Res Int. 2023 Jan; 30(2):3056-3069. doi: 10.1007/s11356-022-22449-3. Epub 2022 Aug 9"