Water-dispersible clay in soils treated with sewage sludge
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چکیده
منابع مشابه
effect of anionic polyacrylamide on aggregation and dispersible clay percentage in soils treated with plant residues
background and objectives:anionic polyacrylamide application as an organic conditioner alone or in combination with organic material, can improve soil properties. the objective of this study was to investigate the influence some organic conditioners on mean weight diameter (mwd) and dispersible clay percentage (dcp).materials and methods:soil samples collected from the top 30-cm layer of two lo...
متن کاملMobility of heavy metals in soils amended with sewage sludge
Morera, M. T., Echeverría, J. C. and Garrido, J. J. 2001. Mobility of heavy metals in soils amended with sewage sludge. Can. J. Soil Sci. 81: 405–414. Sewage sludges added to arable land can improve soil fertility and physical properties. However, the concentrations of heavy metals commonly found in sludges limits their application to soil. The purpose of this paper is to evaluate the mobility ...
متن کاملBioavailability of heavy metals in soils amended with sewage sludge
Morera, M. T., Echeverría J. and Garrido, J. 2002. Bioavailability of heavy metals in soils amended with sewage sludge. Can. J. Soil Sci. 82: 433–438. The recycling of sewage sludge to agricultural land results in the slow accumulation of potentially toxic heavy metals in soils. A greenhouse experiment was conducted to determine the bioavailability of Cu, Ni, Pb and Zn applied to soils in urban...
متن کاملUtilization of drinking-water treatment residue to immobilize copper and zinc in sewage-sludge-amended soils
In situ immobilization of copper and zinc using alum-treated drinking-water treatment residue (WTR) was selected for the remediation of sewage-sludge-amended soils. The WTR has a pH of 7.07 and, although its acid-neutralizing capacity (ANC) is low, utilization at high rates (>2.5%) can help to increase the pH of the soil system. The minerals present in WTR, such as kaolinite, gibbsite and Fe-ox...
متن کاملThe Phytotoxicity Changes of Sewage Sludge-Amended Soils
The aim of the present study was the estimation of changes in the phytotoxicity of soils amended with sewage sludge with relation to Lepidium sativum, Sinapis alba and Sorghum saccharatum. The study was realised in the system of a plot experiment for a period of 29 months. Samples for analyses were taken at the beginning of the experiment, and then after 5, 17 and 29 months. Two kinds of sewage...
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ژورنال
عنوان ژورنال: Revista Brasileira de Ciência do Solo
سال: 2010
ISSN: 0100-0683
DOI: 10.1590/s0100-06832010000500005