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Biological pretreatment of Yellow River water

机译:黄河水的生物预处理

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Bio-ceramic filter(BF) and moving-bed biofilm reactor(MBBR) were used for biological pretreatment of Yellow River water in this study. The BF only had slight advantage over MBBR for TOC and ammonia removal. However, like UV_(254), the average removal rate of THMFP in the BF was much higher than that in the MBBR. UV254 removal did not show obvious correlation with trihalomethane formation potential(THMFP) removal. Hexachlorocyclohexane could be effectively removed in both BF and MBBR. As for diatom and cyanobateria removal the MBBR had better performance than the BF, which was contrary to the average chlorophyll- a (Chi- a) removal rate. The proposal was made in this study that biological fiocculation and sedimentation of sloughed biofilm should play a more important role on algae removal in the MBBR than in the BF. The BF and MBBR could effectively remove microcystins. Moreover, MBBR could be a promising technology for biological pretreatment.
机译:本研究采用生物陶瓷滤池(BF)和移动床生物膜反应器(MBBR)对黄河水进行生物预处理。对于TOC和氨气去除而言,BF仅比MBBR略有优势。但是,像UV_(254)一样,高炉中THMFP的平均去除率远高于MBBR。 UV254的去除与三卤甲烷形成潜势(THMFP)的去除没有明显的相关性。六氯环己烷可在BF和MBBR中有效去除。至于硅藻和蓝藻的去除,MBBR的性能优于BF,这与平均叶绿素-a(Chi-a)去除率相反。在这项研究中提出的建议是,脱落的生物膜的生物絮凝和沉淀作用在MBBR中的除藻作用应比在高炉中更重要。 BF和MBBR可以有效去除微囊藻毒素。此外,MBBR可能是一种有前途的生物预处理技术。

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