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首页> 外文会议>International conference on environmental anaerobic technologies and bioenergy >Removal of Anaerobic Soluble Microbial Products (SMPs) in Biological Activated Carbon (BAC) System
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Removal of Anaerobic Soluble Microbial Products (SMPs) in Biological Activated Carbon (BAC) System

机译：去除生物活性炭（BAC）系统中的厌氧可溶性微生物产品（SMPS）

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Effluents from biological wastewater treatment systems contain a large amount of soluble microbial products (SMPs), which are generally poorly biodegradable and may seriously affect the effluent quality. Focusing on the biodegradation of SMPs from anaerobic reactors, this study combined the biological activated carbon (BAC) into the anaerobic system, in order to improve the quality of the anaerobic effluent so as to meet the discharge standard. The results verified that 90% of the SMPs could be removed before the granular activated carbon (GAC) was saturated. And after the saturation, the SMP removal remained 60% on the average. The accumulative saturation adsorption of GAC over SMPs was approximately 0.28 gCOD/gC, while the continuous BAC reactor removed 0.52 gCOD/gC under the same conditions. This indicated that the main role of SMP removal was biodegradation after the GAC saturation. A strain of SMP-degrading bacteria was screened. The gene sequence was blasted and found to be highly similar to Klebsiella sp. After screening, the SMPdegrading Klebsiella was enriched and seeded back to the BAC reactor before the anaerobic reactors was restarted. The continuous running results clearly revealed the enhancement effect of the screened Klebsiella sp. Finally, when the influent COD was 10,000 mg/L and the OLR achieved 10 kgCOD/m3.d, the effluent from the BAC reactor could meet the discharge standard without further treatment.
机译：从生物废水处理系统的流出物含有大量的可溶性微生物产物（SMPS），其通常是可生物降解的和不良的可能严重影响出水水质。着眼于SMPS的从厌氧反应器生物降解，本研究结合生物活性炭（BAC）到厌氧系统中，为了改善厌氧流出物，以便质量以满足排放标准。结果证实，该颗粒状活性炭（GAC）在饱和前90％的SMPS的可以被移除。而饱和后，在SMP去除平均保持60％。以上的SMP GAC累计饱和吸附约为0.28 gCOD / GC，而连续反应器BAC的相同条件下除去0.52 gCOD / GC。这表明SMP去除的主要作用是GAC饱和后的生物降解。 SMP降解细菌的菌株进行筛选。基因序列被炸开，发现是高度相似的克雷伯氏菌。筛选后，SMPdegrading克雷伯菌富集并重新启动厌氧反应器前种子回到BAC反应器。连续运行的结果清楚地表明了筛选克雷伯菌的增强效果。最后，当进水COD为10,000毫克/升和OLR 10实现kgCOD / m3.d，流出物从所述反应器BAC能够满足排放标准而无需进一步处理。

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