Effect of municipal sewage sludge application on the change of physico-chemical properties and contents of heavy metals in soils

도시하수(都市下水)Sludge의 시용(施用)이 토양이화학성(土壤理化學性) 및 중금속(重金屬) 이동 (移動)에 미치는 영향(影響)

  • Choi, Jyung (Department of Agricultural Chemistry, Colleg of Agricultural,Kyungpook National University) ;
  • Chang, Sang-Moon (Department of Agricultural Chemistry, Colleg of Agricultural,Kyungpook National University) ;
  • Lee, Dong-Hoon (Department of Agricultural Chemistry, Colleg of Agricultural,Kyungpook National University) ;
  • Choi, Choong-Ryeol (Gyeong-pook Provincial Rural Development Administration) ;
  • Park, Seon-Do (Gyeong-pook Provincial Rural Development Administration)
  • 최정 (경북대학교 농과대학 농화학과) ;
  • 장상문 (경북대학교 농과대학 농화학과) ;
  • 이동훈 (경북대학교 농과대학 농화학과) ;
  • 최충렬 (경상북도 농촌진흥원) ;
  • 박선도 (경상북도 농촌진흥원)
  • Published : 1998.06.30

Abstract

This study was conducted to investigate the effect of municipal sludge application on the change of physico-chemical properties and contents of heavy metals in soils. The application of the sludge resulted in increasing the content of total nitrogen, available phosphate,exchangeable K, Ca, Mg, and the soil porosity and permeability but soil hardness was reduce. It is clear that application of municipal sewage sludge would not due to increase in the heavy metals content in soil because of the lower concentration of heavy metal in the sludge. Totally it is evident that municipal sewage sludge application should play an important role in improving soil physico-chemical properties.

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