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首页> 外文期刊>Journal of Environmental Science and Health >Comparison of the characteristics of the leachate and the eluates obtained by different methods
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Comparison of the characteristics of the leachate and the eluates obtained by different methods

机译：渗滤液和不同方法得到的洗脱液的特性比较

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In the research conducted, the interrelation between the leachate and eluates obtained by different methods was determined. The purpose of this research is to determine the optimum method yielding the eluates resembling the leachate generated from the same solid waste. Two reactors filled with solid waste, simulating to a certain extent the sanitary landfill conditions, were used for the generation of leachate. Eluates from the same solid waste that was filled in the reactors were produced by different methods -Standard Leaching Test (SLT), International Unit Conversion System (IUCS) 48 Hours Shaking Test, Minnesota Test and Deutches Institut fur Normung (DIN) 38414-S4 Test. Then both the leachate generated in the reactors and the eluates obtained were analyzed for pH, biological oxygen demand (BOD), chemical oxygen demand (COD), 11 metals and inorganic elements and the results obtained were compared.rnThe BOD and COD values of the SLT third day eluation have higher values than the eluates obtained by other methods. pH values of all the eluates are close to each other. The BOD, COD, Cu, Mn, Zn values of eluates obtained by SLT third eluation have the highest conformity to the leachate generated in reactors. The ratios of the average BOD, COD, Cu, Mg, Mn, Ni and Zn values of the leachate generated at the reactors to eluate are 0.9, 1.2, 0.65, 20, 1, 2.5 and 0.5, respectively. The average value of Ca concentration of the same eluate is 35 times lower than the average values of the leachate generated of the reactors. The eluate obtained by DIN 38414-S4 test has closest Fe and Pb values to the values of the leachate, but still Fe value is four times less than the average Fe values of the reactors. The ratio of Pb values of leachate to eluate is 0.6. The results showed that the SLT third day eluation yields the eluate having the closest values to the characteristics of the leachate generated at the reactors.
机译：在进行的研究中，确定了渗滤液和通过不同方法获得的洗脱液之间的相互关系。这项研究的目的是确定产生类似于从相同固体废物中产生的渗滤液的洗出液的最佳方法。在一定程度上模拟了卫生填埋条件，使用了两个装有固体废物的反应器来产生渗滤液。来自反应器中填充的同一固体废物的洗脱液通过不同的方法产生-标准浸出试验（SLT），国际单位转化系统（IUCS）48小时振动试验，明尼苏达州试验和诺曼底特律研究所（DIN）38414-S4测试。然后分析反应器中产生的沥出液和所得洗脱液的pH值，生物需氧量（BOD），化学需氧量（COD），11种金属和无机元素并比较所得结果.rn SLT第三天洗脱比通过其他方法获得的洗脱液具有更高的值。所有洗脱液的pH值彼此接近。 SLT第三次洗脱得到的洗脱液的BOD，COD，Cu，Mn，Zn值与反应器中产生的浸出液具有最高的一致性。在反应器中产生的沥出液的平均BOD，COD，Cu，Mg，Mn，Ni和Zn值与洗脱液之比分别为0.9、1.2、0.65、20、1、2.5和0.5。相同洗脱液的Ca浓度平均值比反应器中产生的浸出液平均值低35倍。通过DIN 38414-S4测试获得的洗脱液的Fe和Pb值与渗滤液的值最接近，但Fe值仍比反应器的平均Fe值小四倍。渗滤液与洗脱液的Pb值之比为0.6。结果表明，SLT第三天洗脱产生的洗脱液的值与反应器中产生的浸出液的特性最接近。

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