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Soil pH Effect on Phosphate Induced Cadmium Precipitation in Arable Soil
- Authors
- Hong, Chang Oh; Owens, Vance N.; Kim, Yong Gyun; Lee, Sang Mong; Park, Hyean Cheal; Kim, Keun Ki; Son, Hong Joo; Suh, Jeong Min; Kim, Pil Joo
- Issue Date
- Jul-2014
- Publisher
- SPRINGER
- Keywords
- Cadmium; Phosphate; Soil pH; Cd precipitation; Liming
- Citation
- BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY, v.93, no.1, pp 101 - 105
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
- Volume
- 93
- Number
- 1
- Start Page
- 101
- End Page
- 105
- ISSN
- 0007-4861
1432-0800
- Abstract
- The objective of this study was to determine soil pH conditions that allow cadmium (Cd) to precipitate as Cd minerals in phosphate (P) amended soil. Cadmium immobilization could be attributed primarily to Cd adsorption due to increase in pH and negative charge. Soil pH might not affect Cd precipitation as Cd-3(PO4)(2) by direct reaction of Cd and P in the studied soil, even when soil pH increased up to 9.0. However, Cd might precipitate as CdCO3 with increasing pH up to 9.0 in P untreated soil and up to 8.0 in P treated soil depending on CO2 level.
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