Preliminary study of nitro-organic pollutants in selected municipal sludges of China

Abstract

Abstract: Organic pollutants such as nitro-organic compounds in sewages sludges are important factor limiting application of sludge to agricultural land.Six nitro-organic compounds classified as US EPA priority pollutants in eleven municipal sludges from elected cities of China were determined by GC/MS.Total contents of nitro-organic compounds in all sludges ranged from 0.087 mg穔g^-1 to 26.438 mg穔g^-1,decreasing in the order of Lanzhou>Beijing>Wuxi>Dapu>Shatian>Foshan>Guangzhou>Yuanlang>Zhuhai>Xi'an>Shenzhen.Concentrations and distribution patterns of compounds in different sludges were significantly various,with higher nitrobenzenes and lower anilines respectively.Higher concentrations for most compounds were detected in Lanzhou sludge,following by Wuxi sludge,Beijing sludge and Dapu sludge.Compounds detected in different municipal sludges and their concentration were related to the sources of wastewater,wastewater-treating methods,sludge type,physical-chemical properties of compound themselves,etc.

Key words: Chilo suppressalis, Spatial distribution pattern, Geostatistics

CLC Number:

X171.5

CAI Quanying, MO Cehui, LAI Kunrong, ZENG Qiaoyun, WU Qitang, WANG Boguang, LI Haiqin. Preliminary study of nitro-organic pollutants in selected municipal sludges of China[J]. cje, 2004, (3): 76-80.

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