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首页> 外文期刊>Advance journal of food science and technology >Design and Efficiency of a Domestic Sewage Treatment System with Microorganism- membrane on Island Based on Entropy Theory
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Design and Efficiency of a Domestic Sewage Treatment System with Microorganism- membrane on Island Based on Entropy Theory

机译：基于熵理论的岛上微生物膜生活污水处理系统的设计与效率

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摘要

Domestic sewage treatment by water drainage network plus septic tank is not suitable on very small islands because of traffic and urban infrastructure problem. This study deals with a microorganism-membrane domestic sewage treatment system on small islands, which can degrade and clean the domestic sewage locally by effective microorganism and membrane system and makes the emission in market. Eight kinds of commercial complex microorganisms decompose powder were chosen to analysis the activities of protease, lipase, cellulose and amylase. And relating model based on entropy theory was constructed to evaluate the effect of enzyme activity, then the best commercial complex microorganism decompose powder was confirmed. The designed microorganism-membrane wastewater treatment system was applied to treat domestic sewage on a small island. The results showed that the removal rate of organic matters including the five-day Biological Oxygen Demand (BOD_5), Chemical Oxygen Demand (COD) and ammonia nitrogen (NH_3-N) reached more than 98%. The removal rate of Total Dissolved Salts (TDS) of the outlet water was higher than 99%. This system was especially suitable for small islands domestic wastewater treatment.
机译：由于交通和城市基础设施的问题，在很小的岛屿上，不适合通过排污管和化粪池进行生活污水处理。该研究针对的是小岛上的微生物膜生活污水处理系统，该系统可以通过有效的微生物和膜系统对生活污水进行局部降解和净化，并将其排放到市场上。选择8种商品化的复杂微生物分解粉，分析蛋白酶，脂肪酶，纤维素和淀粉酶的活性。并建立了基于熵理论的相关模型，以评价酶活性的影响，从而确定了最佳的商用复合微生物分解粉。将设计好的微生物膜废水处理系统应用于小岛生活污水的处理。结果表明，五天生物需氧量（BOD_5），化学需氧量（COD）和氨氮（NH_3-N）等有机物的去除率均达到98％以上。出水总溶解盐（TDS）的去除率高于99％。该系统特别适用于小岛生活污水处理。

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