反硝化菌YYD4强化生物滤池处理低碳氮比污水效果研究

Environmental Science & Technology(2019)

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Abstract
文章利用实验室筛选到的高效反硝化菌YYD4对反硝化生物滤池进行强化脱氮,探究了该菌在不同C/N比下脱氮性能,考察强化反硝化生物滤池处理低C/N比污水时的启动时间、脱氮能力与脱氮稳定性.结果 表明,反硝化菌YYD4处理低C/N比水时其12 h硝氮去除率为99%,总氮去除率达81.38%,无亚硝氮积累.强化反硝化生物滤池对硝氮去除率为95.18%±4.10%,总氮去除率为94.11%±6.33%,较未强化滤池分别提升了9.76%与19.89%,停止投加菌液后强化滤池的硝氮去除率为96.81%±3.00%,总氮去除率为97.84%±1.40%,强化终止后反硝化生物滤池仍具备良好且稳定的脱氮能力.
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