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547059 
Journal Article 
The remediation of the lead-polluted garden soil by natural zeolite 
Li, H; Shi, W; Shao, H; Shao, M 
2009 
Yes 
Journal of Hazardous Materials
ISSN: 0304-3894
EISSN: 1873-3336 
ELSEVIER 
AMSTERDAM 
169 
1-3 
English 
19428181 
WOS:000268967200154 
The current study investigated the remediation effect of lead-polluted garden soil by natural zeolite in terms of soil properties, Pb fraction of sequential extraction in soil and distribution of Pb in different parts of rape. Natural zeolite was added to artificially polluted garden soil to immobilize and limit the uptake of lead by rape through changing soil physical and chemical properties in the pot experiment under greenhouse conditions. Results indicated that the addition of natural zeolite could increase soil pH, CEC, content of soil organic matter and promote formation of soil aggregate. The application of zeolite decreased the available fraction of Pb in the garden soil by adjusting soil pH rather than CEC, and restrained the Pb uptake by rape. Data obtained suggested that the application of a dose of zeolite was adequate (>=10gkg super(-) super(1)) to reduce soluble lead significantly, even if lead pollution is severe in garden soil (>=1000mgkg super(-) super(1)). An appropriate dose of zeolite (20gkg super(-) super(1)) could reduce the Pb concentration in the edible part (shoots) of rape up to 30% of Pb in the seriously polluted soil (2000mgkg super(-) super(1)). 
Article Subject Terms: Bioremediation; Data processing; Greenhouses; Lead; Organic matter; Pollution; Shoots; Soil; Soil contamination; Soil pH; Soil properties; Soil remediation; Soils (organic); Zeolite; chemical properties; greenhouses; pH; shoots; soil properties; zeolites; X 24360 Metals; P 5000 LAND POLLUTION; ENA 09 Land Use & Planning; EE 30 Soil Pollution: Monitoring, Control & Remediation