Role of soil properties in sewage sludge toxicity to soil collembolans
نویسندگان
چکیده
منابع مشابه
Toxicity of cadmium to soil microbial activity: effect of sewage sludge addition to soil on the ecological dose
Cadmium has a toxic effect on soil microbial activity which plays an important role in nutrient cycling and, therefore, in maintaining soil fertility. In addition, the mobility of this heavy metal in soil is affected by the addition of urban wastes such as sewage sludge. This study was conducted to determine the effect of sewage sludge amendment of a semiarid soil, previously polluted with Cd, ...
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A greenhouse experiment was conducted to investigate the effect of sludge application on growth rate of three leafy vegetable spinach, celery and lettuce. Treatment design in control and 0.7 mg/kg dry weight of soil. Results showed that sludge was highly effective in celery growth compare to spinach and lettuce and increased dry and fresh weight of celery significantly. Photosynthesis rate impr...
متن کاملThe Effect of Compost and Sewage Sludge on Soil Biologic Activities in Salt Affected Soil
Saline soil was amended with 13.3 and 26.6 g kg of Municipal Solid Waste (MSW) compost or sewage sludge, and arylsulphatase (ARY), phosphatase (PHO), dehydrogenase (DEH), β-glucosidase (β-GLU), urease (URE) and catalase (CAT) activities as well as physical-chemical properties were determined after 70 day of incubation under laboratory conditions. MSW compost and sewage sludge significantly impr...
متن کاملLand application of sewage sludge: A soil columns study
A column study was conducted to assess the potential Cr, Ni, Cu, Zn, Cd and Pb movement through a reconstructed soil profile to which surface composted sewage sludge was applied. Sewage sludge was mixed into the top 100 mm of each column at the rates of 357 (H), 223 (M) and 22 Mg·ha-1 (L). Treatment H was calculated according to the critical soil concentration and treatments M and L were calcul...
متن کاملapplication 0f sewage sludge ash to improve engineering properties of clay soil in water structures
different additives have been considered to improve stabilization of the engineering properties of fine-grained soil. the present study investigated the effect of the addition of sewage sludge ash on the compressive strength of clay soil at optimum moisture content and under saturated conditions. the four treatments tested were the addition of 0%, 5%, 10% and 15% sewage sludge ash to clayey soi...
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ژورنال
عنوان ژورنال: Soil Biology and Biochemistry
سال: 2010
ISSN: 0038-0717
DOI: 10.1016/j.soilbio.2010.07.019