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首页> 外文会议>2011 International Symposium on Water Resource and Environmental Protection >Quick start-up activated sludge system by inoculating primary sludge
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Quick start-up activated sludge system by inoculating primary sludge

机译：通过接种初级污泥快速启动活性污泥系统

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Inoculating excess sludge was adopted by most wastewater treatment plants (WWTP). But inoculating excess sludge has these problems usually: high cost for buying, transportation and dosing number seeding sludge, and activated sludge having lag phase. Inoculating primary sludge is supposed a promising method. The total bacterial count of the influent and effluent was detected by DAPI (4′, 6-diamidino-2-phenylindole) staining in primary sedimentation. And the total bacterial count of the effluent was 9.7% of that in the influent on an average. Most of bacterial was settled with primary sludge. The comparative study has been done about the start-up of an activated sludge system by inoculating primary sludge and no primary sludge. The result showed that: at 20°C, in the system which was inoculated primary sludge, the mixed-liquor suspended solids (MLSS) was 2815mg/L, the ammonia nitrogen and Chemical Oxygen Demand(COD) in effluent were 0.65 mg/L and 47.6 mg/L respectively on the 9th day, so the start-up was succeed. Primary sludge is a kind of cheap seeding sludge, which can be obtained easily in WWTP, and the activated sludge system can be quick started up easily by inoculating primary sludge.
机译：大多数废水处理厂（WWTP）都采用接种过量污泥的方法。但是接种过量的污泥通常存在以下问题：购买，运输和加药数量接种污泥的高成本，以及具有滞后阶段的活性污泥。接种初级污泥被认为是一种有前途的方法。在初次沉淀中，通过DAPI（4'，6-diamidino-2-phenylindole）染色检测进水和出水的细菌总数。平均而言，废水的总细菌数为进水细菌总数的9.7％。大部分细菌沉淀在初级污泥中。通过接种初级污泥和不接种初级污泥，已经进行了有关活性污泥系统启动的比较研究。结果表明：在20℃下，接种初级污泥的系统中，混合液悬浮物（MLSS）为2815mg / L，废水中氨氮和化学需氧量（COD）为0.65 mg / L。第9天分别为47.6 mg / L和47.6 mg / L，因此启动成功。初级污泥是一种廉价的播种污泥，可以在污水处理厂容易地获得，并且通过接种初级污泥可以很容易地快速启动活性污泥系统。

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