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Total concentrations and fractions of Cd, Cr, Pb, Cu, Ni and Zn in sewage sludge from municipal and industrial wastewater treatment plants.
J Hazard Mater. 2005 Mar 17; 119(1-3):245-9.JH

Abstract

Heavy metals are one of the important factors that affect the final disposal of sewage sludge. In this paper, the metal mobility and bioavailability of heavy metals in sewage sludge were studied by using Community Bureau of Reference (BCR) sequential extraction procedure to get more information for the reasonable disposal of sludge. Sewage sludge was collected from five municipal wastewater treatment plants and three industrial wastewater treatment plants. The sludge was examined for and the total concentrations and different chemical fractions of Cd, Cr, Pb, Cu, Ni and Zn. The total metal concentrations of heavy metals in sludge varied greatly. The contents of Zn and Cu were the highest, followed by then Cr, Ni and Pb and the content of Cd was the least. There was no significant difference in total metal concentration between municipal and industrial wastewater treatment plants. Fractions extracted by the BCR sequential procedure were acid soluble/exchangeable, reducible and oxidizable fraction. Sludge pH was found to have profound effect on the chemical fractions of heavy metals. Acidic sludges (Xiamen and Jinlin Petrochemical Group Co., wastewater treatment plant) had higher proportion of the acid soluble/exchangeable fractions than in neutral sludge. In neutral sludges, Pb and Cr were principally distributed in between the oxidizable fraction and the residual fraction; Cu was in the oxidizable fraction; Cd mainly in the residual fraction in municipal wastewater treatment plants and had high percentage of acid soluble/exchangeable and reducible fractions in industrial wastewater treatment plants; Ni and Zn had higher percentage in the acid soluble/exchangeable and the oxidizable fraction.

Authors+Show Affiliations

Wang C
School of Environmental Science and Engineering, Hohai University, Nanjing 210098, PR China.
Hu X
No affiliation info available
Chen ML
No affiliation info available
Wu YH
No affiliation info available

MeSH

Environmental MonitoringIndustrial WasteMetals, HeavyOxidation-ReductionSewageWaste Disposal, Fluid

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

15752872

Citation

Wang, Chao, et al. "Total Concentrations and Fractions of Cd, Cr, Pb, Cu, Ni and Zn in Sewage Sludge From Municipal and Industrial Wastewater Treatment Plants." Journal of Hazardous Materials, vol. 119, no. 1-3, 2005, pp. 245-9.
Wang C, Hu X, Chen ML, et al. Total concentrations and fractions of Cd, Cr, Pb, Cu, Ni and Zn in sewage sludge from municipal and industrial wastewater treatment plants. J Hazard Mater. 2005;119(1-3):245-9.
Wang, C., Hu, X., Chen, M. L., & Wu, Y. H. (2005). Total concentrations and fractions of Cd, Cr, Pb, Cu, Ni and Zn in sewage sludge from municipal and industrial wastewater treatment plants. Journal of Hazardous Materials, 119(1-3), 245-9.
Wang C, et al. Total Concentrations and Fractions of Cd, Cr, Pb, Cu, Ni and Zn in Sewage Sludge From Municipal and Industrial Wastewater Treatment Plants. J Hazard Mater. 2005 Mar 17;119(1-3):245-9. PubMed PMID: 15752872.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Total concentrations and fractions of Cd, Cr, Pb, Cu, Ni and Zn in sewage sludge from municipal and industrial wastewater treatment plants. AU - Wang,Chao, AU - Hu,Xin, AU - Chen,Mao-Lin, AU - Wu,Yun-Hai, PY - 2004/09/18/received PY - 2004/11/21/revised PY - 2004/11/24/accepted PY - 2005/3/9/pubmed PY - 2005/7/6/medline PY - 2005/3/9/entrez SP - 245 EP - 9 JF - Journal of hazardous materials JO - J Hazard Mater VL - 119 IS - 1-3 N2 - Heavy metals are one of the important factors that affect the final disposal of sewage sludge. In this paper, the metal mobility and bioavailability of heavy metals in sewage sludge were studied by using Community Bureau of Reference (BCR) sequential extraction procedure to get more information for the reasonable disposal of sludge. Sewage sludge was collected from five municipal wastewater treatment plants and three industrial wastewater treatment plants. The sludge was examined for and the total concentrations and different chemical fractions of Cd, Cr, Pb, Cu, Ni and Zn. The total metal concentrations of heavy metals in sludge varied greatly. The contents of Zn and Cu were the highest, followed by then Cr, Ni and Pb and the content of Cd was the least. There was no significant difference in total metal concentration between municipal and industrial wastewater treatment plants. Fractions extracted by the BCR sequential procedure were acid soluble/exchangeable, reducible and oxidizable fraction. Sludge pH was found to have profound effect on the chemical fractions of heavy metals. Acidic sludges (Xiamen and Jinlin Petrochemical Group Co., wastewater treatment plant) had higher proportion of the acid soluble/exchangeable fractions than in neutral sludge. In neutral sludges, Pb and Cr were principally distributed in between the oxidizable fraction and the residual fraction; Cu was in the oxidizable fraction; Cd mainly in the residual fraction in municipal wastewater treatment plants and had high percentage of acid soluble/exchangeable and reducible fractions in industrial wastewater treatment plants; Ni and Zn had higher percentage in the acid soluble/exchangeable and the oxidizable fraction. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/15752872/Total_concentrations_and_fractions_of_Cd_Cr_Pb_Cu_Ni_and_Zn_in_sewage_sludge_from_municipal_and_industrial_wastewater_treatment_plants_ DB - PRIME DP - Unbound Medicine ER -