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- W2384681231 abstract "To identify the concentrations of heavy metals in municipal sludge of China,samples of municipal sludge were collected from 107 sewage treatment plants in China in 2006.The results indicate that the average concentrations of As,Cd,Cr,Cu,Hg,Ni,Pb and Zn in the sludge are 20.2 mg/kg,2.01 mg/kg,93.1 mg/kg,219 mg/kg,2.13 mg/kg,48.7 mg/kg,72.3 mg/kg and 1 058 mg/kg respectively.Compared with the results of heavy metals in municipal sludge taken before 2001,there is a significant decrease in heavy metals in the sludge,and the average concentrations of Cd,Cr,Cu,Hg,Ni,Pb and Zn are decreased by 32.3%,49.7%,54.9%,25%,37.2%,44.8% and 27% respectively.However,the concentrations of Cd,Cu,Ni and Zn in the samples exceed the heavy metal limits of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002),being 6.5%,6.5%,6.5% and 11.2% respectively." @default.
- W2384681231 created "2016-06-24" @default.
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- W2384681231 date "2009-01-01" @default.
- W2384681231 modified "2023-09-23" @default.
- W2384681231 title "Concentrations and Variation of Heavy Metals in Municipal Sludge of China" @default.
- W2384681231 hasPublicationYear "2009" @default.
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