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首页> 外文期刊>Desalination and water treatment >Influence of the receiving of leachate from sanitary landfill on the sewage treatment in process of activated sludge with mobile biomedia
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Influence of the receiving of leachate from sanitary landfill on the sewage treatment in process of activated sludge with mobile biomedia

机译：流动生物介质中生活垃圾填埋场渗滤液对活性污泥处理污水的影响

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摘要

In this research was investigated the performance of a hybrid system of the type integrated fixed-film activated sludge (IFAS), here called "activated sludge with mobile biomedia", in combined treatment of leachate from sanitary landfill and domestic sewage aiming at removing of organic substance and nitrogen. In order to assess the possible impact on treatment had been developed three experimental phases with contributions of leachate in the composition of the affluent: 5%, 10% and 20% of the total load of BOD. A system was used on a pilot scale, which useful volume of the bioreactor is equal to 1.0 m(3). Overall, the results showed that, even at the highest contribution of leachate, there were no significant changes in the behavior of the biological process, and were usually obtained efficiencies of BOD removal above 85% and TKN near 90%. Nevertheless, there was a small reduction in the specific growth rates of both autotrophic bacteria as in heterotrophic, increased with leachate load. In general, the process showed a good performance and operational stability throughout its operation, indicating that, from the point of view of removal of organic matter and nitrogen, the leachate contributions used in this study can be admitted to treatment plants sewer of this category.
机译：在这项研究中，研究了混合型固定膜活性污泥（IFAS）混合系统（此处称为“带有移动生物介质的活性污泥”）在旨在处理卫生垃圾填埋场渗滤液和生活污水的组合处理中的性能。有机物质和氮。为了评估对处理的可能影响，已经开发了三个实验阶段，浸出液在富裕剂组成中的贡献分别为：BOD总负荷的5％，10％和20％。一个用于中试规模的系统，该生物反应器的有用体积等于1.0 m（3）。总体而言，结果表明，即使沥滤液的贡献最大，生物过程的行为也没有显着变化，通常BOD去除效率在85％以上，TKN去除效率在90％以上。然而，两种自养细菌的比生长速率与异养细菌相比都有小幅下降，随浸出液量的增加而增加。通常，该方法在整个操作过程中均表现出良好的性能和操作稳定性，这表明，从去除有机物和氮的角度来看，本研究中使用的渗滤液贡献可被归入此类污水处理厂。

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