Journal Paper

Paper Information

video

sound

Persian Version

View:

102

Download:

0

Cites:

Information Journal Paper

Title

THE EFFECT OF COMPOST AND SEWAGE SLUDGE APPLICATIONS ON THE DISTRIBUTION OF CADMIUM, LEAD AND NICKEL IN TWO CALCAREOUS SOILS

Writers

FOTOVAT A. | HALAJNIA A.

Pages

 Start Page 115 | End Page 131

Abstract

 The effects of two different organic matters including compost and sewage sludge on the DISTRIBUTION of Cd, Pb and Ni in different fractions of two calcareous soils were investigated. The soil samples were treated with two levels of each organic material (0 and 2%). HEAVY METALS were added to soils at the rate of 10 mg kg-1 of Cd, 200 mg kg-1 of Ni and 400 mg kg-1 of Pb as nitrate salt. The samples were incubated for 12h, 20 and 40 days. After each INCUBATION time, metals were fractionated by SEQUENTIAL EXTRACTION and analyzed for DTPA extractable form.Results showed that Pb and Ni were rapidly transformed from exchangeable to more stable fractions during the INCUBATION intervals. In contrast, the amount of Cd in exchangeable fraction changed slightly and the considerable portion of Cd remained in this fraction. At the end of the experiment, the DISTRIBUTION percentage of Cd, Ni and Pb followed the order of carbonate>Fe-Mn oxide>exchangeable, Fe-Mn oxide>carbonate>organic matter, carbonate>Fe-Mn oxide>organic matter, respectively. There were almost no changes for the metals in the residual fraction.The effects of compost and sewage sludge on the DISTRIBUTION of studied metals in two soils were different. However, application of organic matter mainly resulted in the increased organic matter fraction and DTPA extractable forms of metals.

Cites

  • No record.
  • References

  • No record.
  • Related Journal Papers

    Related Seminar Papers

  • No record.
  • Related Plans

  • No record.
  • Recommended Workshops






    File Not Exists.