High nitrogen removal performance of anaerobically treated fish processing wastewater by one-stage partial nitritation and anammox process with hydroxyapatite (HAP)-based syntrophic granules and granule structure
High nitrogen removal performance of anaerobically treated fish processing wastewater by one-stage partial nitritation and anammox process with hydroxyapatite (HAP)-based syntrophic granules and granule structure
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基于羟基磷灰石（HAP）的互养颗粒和颗粒结构一级部分亚硝化和厌氧氨氧化工艺对鱼类加工废水厌氧处理的高脱氮性能
DOI：
10.1016/j.biortech.2021.125526
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发表时间：
2021
影响因子：
11.4
通讯作者：
Li Yu-You
中科院分区：
文献类型：
--
作者：
Chen Yujie;Sanjaya Eli Hendrik;Guo Guangze;Li Yu-You
采用羟基磷灰石（HAP）复合营养化颗粒一期部分硝化厌氧氨氧化工艺，对自搅拌折流板厌氧反应器处理鱼类加工废水出水的氨氮进行了脱除研究。当进水铵为1140 mg N·L-1时，氮去除率和氮去除率分别为1.51±0.10 kg N·m−3·d-1和88.2%。施特加尼候选菌厌氨氧化菌和亚硝基索莫纳菌的铵氧化菌是两种最占优势的细菌，而亚硝酸盐氧化菌活性较低，在处理过程中可以忽略。采用多种方法对污泥的无机元素性质进行了分析，证实了HAP颗粒的存在。光学显微镜观察和扫描电镜分析揭示了颗粒污泥的结构。本研究支持了该工艺在水产加工废水中高效脱氮的可行性和潜力。
The one-stage partial nitritation and anammox process with the hydroxyapatite (HAP)-based syntrophic granules was studied for the ammonium nitrogen removal from the effluents of a self-agitated anaerobic baffled reactor treating the fish processing wastewater. When the ammonium in the influent was 1140 mg N·L-1, a high nitrogen removal rate and nitrogen removal efficiency of 1.51 ± 0.10 kg N·m−3·d-1and 88.2% were obtained, respectively. Anammox bacteria ofCandidatusKuenenia stuttgartiensis and ammonium oxidizing bacteria ofNitrosomonaswere the two most predominant bacteria, while nitrite oxidizing bacteria activity was low and could be neglected during the treatment. The inorganic element properties of the sludge were analyzed by several methods to confirm the existence of HAP granules. Optical microscopic observation and scanning electron microscopy analysis revealed the structure of the granular sludge. This study supports the feasibility and potential of this process for high-efficiency nitrogen removal from fish processing wastewater.