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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Performance and microbial ecology of a novel moving bed biofilm reactor process inoculated with heterotrophic nitrification-aerobic denitrification bacteria for high ammonia nitrogen wastewater treatment
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Performance and microbial ecology of a novel moving bed biofilm reactor process inoculated with heterotrophic nitrification-aerobic denitrification bacteria for high ammonia nitrogen wastewater treatment

机译：一种新型移动床的性能和微生物生态学，其接种具有异养硝化的硝化碳化菌对高氨氮废水处理的杂养硝化碳化菌

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摘要

To overcome long start-up time, poor ammonia tolerance and removal performance of traditional moving bed biofilm reactor (MBBR) inoculated with activated sludge for high-ammonia wastewater treatment, a novel MBBR based on heterotrophic nitrification-aerobic denitrification (HN-AD) was proposed. Start-up of MBBR was firstly performed via inoculated with HN-AD bacteria. Start-up time was shortened from 39 d to 15 d, NH4+ tolerance was enhanced from 200 mg/L to 1000 mg/L, and TN removal was increased from 30.4% to 80.7%. The carrier types and NH4+ concentration had significant effects on nitrogen removal and microbial ecology. When the NH4+ concentration was increased to 900 mg/L in MBBR using polyvinyl alcohol gel as carrier, the TN removal, the abundance of HN-AD bacteria Acinetobacter, Pseudomonas and Paracoccus, which played a key role in TN removal and ammonia tolerance, and the abundance of genes related to nitrogen removal were much higher than those of MBBR using kaldness.
机译：为了克服长期启动时间，传统运动床的氨耐受性和去除性能差，其接种着高氨废水处理的活性污泥，基于异养硝化的有氧脱氮（HN-AD）的新型MBBR是 建议的。 首先通过接种HN-AD细菌进行MBBR的启动。 启动时间从39 d缩短至15天，从200mg / l增强NH4 +耐受，并且TN除去从30.4％增加到80.7％。 载体类型和NH4 +浓度对氮去除和微生物生态产生显着影响。 当使用聚乙烯醇凝胶作为载体时，NH 4 +浓度在MBBR中增加至900mg / L时，TN去除，富含HN-AD细菌的抗杆菌，假单胞菌和裂缝杆菌，在TN去除和氨耐受中发挥了关键作用，并且 与氮气除去相关的基因的丰富基因远高于MBBR的基因。

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