Journal ArticleDOI
Effect of Immobilizing Substances and Salinity on Heavy Metals Availability to Wheat Grown on Sewage Sludge-Contaminated Soil
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In this article, the effect of metal immobilizing substances and NaCl salinity on the availability of heavy metals: Zn, Cd, Cu, Ni, and Pb to wheat (Triticum aestivum L.).Abstract:
The objective of the investigation was to evaluate the effect of immobilizing substances and NaCl salinity on the availability of heavy metals: Zn, Cd, Cu, Ni, and Pb to wheat (Triticum aestivum L.). In greenhouse pot experiment, a sewage sludge amended soil was treated with the following immobilizing substances: three clay minerals (Na-bentonite, Ca-bentonite and zeolite), iron oxides (goethite and hematite), and phosphate fertilizers (superphosphate and Novaphos). The pots were planted with wheat and were irrigated either with deionized or saline water containing 1600 mg L−1 NaCl. Wheat was harvested two times for shoot metal concentrations and biomass measurements. Metal species in soil solution were estimated using the software MINEQL+. The addition of metal immobilizing substances to the soil significantly decreased metal availability to wheat. The largest reduction in metal bioavailability was found for bentonites. The irrigation with saline water (1600 mg L−1 NaCl) resulted in a significant increas...read more
Citations
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Journal ArticleDOI
Review of remediation practices regarding cadmium-enriched farmland soil with particular reference to China.
TL;DR: A novel ecological and hydraulic remediation technique has been proposed, which integrated the advantages of chemical elution, solidification and stabilisation, phytoremediation and field management, and shows great potential for large area applications.
Journal ArticleDOI
Toxic effects of heavy metals and their accumulation in vegetables grown in a saline soil
TL;DR: Tomato, which is the most salt tolerant crop of the eight vegetables, also is themost heavy metals resistant studied in terms of growth, peroxidase activity and heavy metals translocation.
Journal ArticleDOI
Responses of soil microbial communities and their network interactions to saline-alkaline stress in Cd-contaminated soils.
TL;DR: Soil bacteria were more active in response to the SA stress than fungi, as the significant structural reorganization of soil bacterial microbiota rather than fungal microbiota between SA and CK treatments was illustrated by principal component analysis.
Journal ArticleDOI
The impact of greenhouse vegetable farming duration and soil types on phytoavailability of heavy metals and their health risk in eastern China
TL;DR: From sustainable GVP perspective, fertilization strategy with reduced frequency and rate is especially important and effective for abating soil and vegetable contamination by heavy metals under greenhouse farming.
Journal ArticleDOI
Immobilization of Heavy Metals in Sewage Sludge during Land Application Process in China: A Review
TL;DR: In this paper, the authors present an analysis of the impact of heavy metals on the safe disposal of sewage sludge during the process of municipal wastewater treatment has become one of the major concerns of increased production.
References
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Book ChapterDOI
The Iron Oxides
R. M. Cornell,U. Schwertmann +1 more
TL;DR: The food-quality iron oxides are primarily distinguished from technical grades by their comparatively low levels of contamination by other metals; this is achieved by the selection and control of the source of the iron or by the extent of chemical purification during the manufacturing process as discussed by the authors.
Journal ArticleDOI
Page, A. L., R. H. Miller and D. R. Keeney (Ed., 1982): Methods of soil analysis; 2. Chemical and microbiological properties, 2. Aufl. 1184 S., American Soc. of Agronomy (Publ.), Madison, Wisconsin, USA, gebunden 36 Dollar.
Journal ArticleDOI
The adsorption of lead and other heavy metals on oxides of manganese and iron
TL;DR: In this article, measurements were made of the adsorption of cobalt, copper, manganese, nickel, lead, and zinc on nine synthetic manganous oxides and three synthetic iron oxides, to determine the mechanism by which lead accumulates in the MANGANESE oxides in soils.