【摘要】 采用聚乙烯醇（ PVA）作为包埋剂，添加海藻酸钠（ CA）起助形作用，混合硼酸溶液为交联剂，寻找最佳工艺条件组合，包埋固定化硝化细菌与活性污泥。以色谱柱作为反应装置，应用间歇式活性污泥法（ SBR）的运行方式对污水进行处理。结果表明，固定化微生物寿命均在 2个月以上，进水 NH4＋－ N浓度约为 35mg· L－ 1，停留时间为 4h时， NH4＋－ N的去除率稳定在 85％以上，且菌体负荷可达 1.49kgN· (m3 h kg nBac)－ 1──单位质量固定化硝化细菌单位时间内去除氨氮的浓度。更多还原

【Abstract】 The immobilized microbes pellets were made from entrapping cultivated nitrobacteria and activated sludge by using polyvinylalcohol (PVA) crosslinked with boric acid, with the help of sodiumpolymannuronate (CA). The article is aiming to find out the best combination of the immobilization technique. In the designed reactor, Sequencing Batch Reactor(SBR) system treating composed NH4＋－ N was carried out. The experiment results were as follows. The immobilized nitrobacteria’s life span was more than two months. While the influent NH4＋－ N concentration was around 35mg· L－ 1, and the reaction time was held to 4 hours, the NH4＋－ N removal efficiency reached 85％ or above. In addition, the loading of the immobilized bacteria was 1.49kgN· (m3 h kg nBac)－ 1.更多还原