复杂红层条件下某垃圾填埋场地下水修复研究
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摘要
为研究复杂低渗红层地质条件下地下水垃圾滤液污染治理,通过引入地下水质量氧化恢复技术,开展了不同氧化剂投加量下垃圾滤液污染治理效果研究,并通过室内3D-EEM进行地下污染水体三维分析。场地污染处理效果表明,过硫酸钠对复杂红土层中滤液具有明显的氧化效果,COD及难溶解物质的去除效率先随硫酸钠投入量增加量先升高后降低,地下水污染修复效果与投入量之间近似成上抛物线型关系;过硫酸钠用于红层垃圾填埋场地下水修复中具有良好的治理效果,最佳过硫酸钠投入量为2.0 g/L,地下水修复程度达58.74%。
In order to study the treatment of groundwater waste filtrate pollution under complex red bed geological conditions, by introducing groundwater quality oxidation recovery technology, the treatment effect of waste filtrate pollution under different dosage of oxidant was studied, and the three-dimensional analysis of groundwater pollution was carried out by indoor 3 D-EEM. The results of site pollution treatment show that sodium persulfate has obvious oxidation effect on filtrate in complex laterite layer. The removal efficiency of COD and insoluble substances first increases and then decreases with the increase of sodium sulfate input. The relationship between the effect of groundwater pollution remediation and input is approximately parabolic. Sodium persulfate has good treatment effect in groundwater remediation of red-bed landfill site. The results show that the optimal input of sodium persulfate is 2.0 g/L and the degree of groundwater remediation is 66.74%.
In order to study the treatment of groundwater waste filtrate pollution under complex red bed geological conditions, by introducing groundwater quality oxidation recovery technology, the treatment effect of waste filtrate pollution under different dosage of oxidant was studied, and the three-dimensional analysis of groundwater pollution was carried out by indoor 3 D-EEM. The results of site pollution treatment show that sodium persulfate has obvious oxidation effect on filtrate in complex laterite layer. The removal efficiency of COD and insoluble substances first increases and then decreases with the increase of sodium sulfate input. The relationship between the effect of groundwater pollution remediation and input is approximately parabolic. Sodium persulfate has good treatment effect in groundwater remediation of red-bed landfill site. The results show that the optimal input of sodium persulfate is 2.0 g/L and the degree of groundwater remediation is 66.74%.
引文
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[2] 林永生,裴建国,邹胜章,等.清江下游红层岩溶及其水化学特征[J].广西师范大学学报(自然科学版),2018,36(3):113-120.
[3] 翁剑伟.湛江市城区地下水动态分析及保护措施[J].广东水利水电,2014(6):32-35.
[4] 董宾芳.地下水化学成分的时空变化规律分析[J].广东水利水电,2017(8):27-29,46.
[5] 张智雄,许模,张强,等.绵阳红层地区浅层地下水水化学特征、成因及水质分析[J].科学技术与工程,2018,18(3):168-173.
[6] 王承俊,左蔚,杨在文.红层区某生活垃圾临时填埋场对地下水环境影响研究[J].地下水,2017,39(5):65-67.
[7] 骆成杰,刘建,刘丹,等.某红层地区临河非正规生活垃圾填埋场地下水污染与修复模拟[J].环境工程,2018,36(10):24-29.
[8] 姚建刚,龙伟,李清毅,等.四川红层地区简易垃圾填埋场地下水污染现状调查及防治对策[J].四川环境,2018,37(3):79-84.
[9] 张志强,张强,张希雨,等.川中红层灌区地下水硝酸盐污染特征及影响因素[J].人民长江,2018,49(9):6-10.
[10] 周昆鹏,白旭芳,毕卫红.基于荧光多光谱融合的水质化学需氧量的检测[J].光谱学与光谱分析,2019(3):813-817.