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首页> 外文期刊>Journal of pesticide science >Removal of methyl parathion by surfactant-assisted soil washing and subsequent wastewater biological treatment
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Removal of methyl parathion by surfactant-assisted soil washing and subsequent wastewater biological treatment

机译：通过表面活性剂辅助的土壤洗涤和随后的废水生物处理去除甲基对硫磷

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摘要

The aim of this work is to present an integrated process for the remediation of soils contaminated with o,o-dimethyl o-(p-nitrophenyl)phosphorofhioate, known as methyl parathion (MP), by surfactant-enhanced soil washing and treatment of the produced wastewaters in an aerobic-submerged biofilter. Soils containing approximately 0.4 and 13 mg/kg of MP were washed using anionic, nonionic, zwitterionic, and natural surfactants. Between 63 and 98% of the initial concentrations of MP were removed. Wastewater produced from soil washing with the addition of a natural biosurfactant, locust bean gum [0.01% (w/w)], was used for the experiments in an aerobic-submerged biofilter in which MP concentration decreased from an initial value of 0.78 mg/L up to a value of 0.05 mg/L in 6 days, indicating the feasibility of the treatment proposed.
机译：这项工作的目的是提出一种通过表面活性剂增强的土壤洗涤和处理来治理被邻，邻-二甲基邻-（对硝基苯基）磷酸二氢呋喃盐污染的土壤的综合方法，该方法被称为甲基对硫磷（MP）。需氧淹没式生物滤池中产生的废水。使用阴离子，非离子，两性离子和天然表面活性剂洗涤含有约0.4和13 mg / kg MP的土壤。去除了MP初始浓度的63％至98％。通过添加天然生物表面活性剂刺槐豆胶[0.01％（w / w）]的土壤洗涤产生的废水用于需氧淹没式生物滤池中的实验，其中MP浓度从0.78 mg / mg的初始值降低L在6天内达到0.05 mg / L的值，表明所建议治疗的可行性。

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