土壤中重金属和多环芳烃复合污染修复方法研究
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摘要
随着人们对环境的重视,各种污染物修复方法也相继问世。但是很多修复方法只是针对某一种污染物,对二者复合污染修复研究比较少,而在实际生活中土壤更多的是受多种污染物复合影响,因此研究重金属和PAHs复合污染物修复很有必要,也极具现实意义。研究以某电子垃圾污染土壤为对象,探究不同试剂对其中重金属和多环芳烃的去除效果,结果表明Fe~(2+)-柠檬酸和过硫酸钠复合试剂对重金属的去除率达35%,对多环芳烃的去除率达80%,对复合污染土壤具有明显的修复效果。
With people's attention to the environment, various methods of remediation of pollutants have come out one after another.However, many remediation methods only focus on one pollutant, and there are few studies on the remediation of the combined pollution. In real life, the soil is more affected by multiple pollutants. Therefore, it is necessary and of great practical significance to study the remediation of heavy metals and PAHs combined pollutants.The removal efficiency of heavy metals and polycyclic aromatic hydrocarbons(PAHs)from soils polluted by electronic waste was studied. The results showed that the removal rate of heavy metals and PAHs by Fe~(2+)-citric acid and sodium persulfate reagents reached 35% and 80%, respectively, and the removal rate of heavy metals and PAHs from soils polluted by electronic waste was significant.
With people's attention to the environment, various methods of remediation of pollutants have come out one after another.However, many remediation methods only focus on one pollutant, and there are few studies on the remediation of the combined pollution. In real life, the soil is more affected by multiple pollutants. Therefore, it is necessary and of great practical significance to study the remediation of heavy metals and PAHs combined pollutants.The removal efficiency of heavy metals and polycyclic aromatic hydrocarbons(PAHs)from soils polluted by electronic waste was studied. The results showed that the removal rate of heavy metals and PAHs by Fe~(2+)-citric acid and sodium persulfate reagents reached 35% and 80%, respectively, and the removal rate of heavy metals and PAHs from soils polluted by electronic waste was significant.
引文
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[7]陈婷茹.烷基糖苷和氨三乙酸联合强化藨草修复铅-芘复合污染土壤[D],2016.
[2]李宁,任伯帜,周莹莹,等.土壤重金属污染危害及修复方法研究[J].广州化工,2017,45(9):30-32.
[3]倪妮,宋洋,王芳,等.多环芳烃污染土壤生物联合强化修复研究进展[J].土壤学报,2016,53(3):561-571.
[4]郑学昊,孙丽娜,刘克斌,等.PAHs污染土壤生物修复技术及强化手段研究进展[J].沈阳大学学报(自然科学版),2017,29(4):297-303.
[5]陈楠.微生物在重金属污染土壤修复中的作用研究[J].环境科学与管理,2016,41(2).
[6]李凤梅,郭书海,张灿灿,等.多环芳烃降解菌的筛选及其在焦化场地污染土壤修复中的应用[J].环境污染与防治,2016,38(4):1-5.
[7]陈婷茹.烷基糖苷和氨三乙酸联合强化藨草修复铅-芘复合污染土壤[D],2016.