不同碳源下反硝化亚硝酸盐积累情况研究进展

Research progress on nitrite accumulation during denitrification with different carbon sources

介绍了短程反硝化的原理及其在脱氮方面的应用价值,详细阐述了投加甲醇、乙醇、乙酸钠、糖类、甘油、污泥发酵液、秸秆浸出液、黄水、含氮杂环化合物作为反硝化碳源时的亚硝酸盐积累情况,并通过比较以上碳源的理化性质、亚硝酸盐积累情况和经济效益,评价其优缺点,为今后短程反硝化碳源的选择提供参考,也提出了未来的研究方向。

The mechanism of partial-denitrification and its application value in nitrogen removal are introduced.The nitrite accumulation during denitrification is described in detail when methanol,ethanol,sodium acetate,sugars,glycerol,sludge fermentation liquid,straw leaching solution,yellow water,and nitrogen heterocyclic compounds are used as carbon sources.The advantages and disadvantages of these carbon sources are evaluated by comparing their physical and chemical properties,nitrite accumulation and economic benefits,which provide references for the selection of the carbon source for partial-denitrification in the future,and then future research directions are proposed.