为研究水质条件对厌氧氨氧化颗粒污泥EPS含量的影响，采用16个SBR反应器研究同周期内基质利用阶段与基质匮乏阶段EPS含量的变化以及总氮质量浓度、IC／TN、COD／TN对于厌氧氨氧化颗粒污泥EPS含量的影响．结果表明，同周期内，基质利用阶段的EPS含量不断升高，基质匮乏阶段EPS含量不断降低；总氮质量浓度为35～280 mg／L时，提高总氮质量浓度可以提高EPS的含量，总氮质量浓度＞280 mg／L时EPS含量有所减少；IC／TN为0．01～0．2时，EPS及其各组分含量随无机碳质量浓度的升高而增加，IC／TN＞0．2时，无机碳质量浓度对于EPS及其各组分含量无明显影响；COD／TN＜0．5时，有机物对于EPS含量具有促进作用，COD／TN＞0．5时，有机物的提高对于EPS含量有抑制作用．在厌氧氨氧化颗粒污泥工艺的实际运行过程中，应避免过长的基质利用阶段与基质匮乏阶段，总氮质量浓度应保持在150～210 mg／L，无机碳质量浓度应保持在IC／TN为0．1～0．2，有机物质量浓度应保持在COD／TN＜0．5．%Content of EPS affects not only the formation and stability of anammox granular sludge, but also the performance of reactor. To study the effect of influent water quality on the EPS content, sixteen SBR reactors with different total nitrogen concentrations, different IC/TN ratios and different COD/TN were operated and compared. Experimental results indicated that the content of EPS increased during the substrate utilization phase, but declined under the shortage phase. Specifically, the EPS content increased slighty with the increasing of total nitrogen concentration from 35 to 280 mg/L, however, it decreased significantly once the total nitrogen concentration exceeded 280 mg/L. With a IC/TN of 0.01-0.2, the content of EPS increased with a continuous input of inorganic carbon, but the inorganic carbon concentration had no significant effect on EPS content when IC/TN>0.2. Under the condition of COD/TN<0.5, higher organic matter promoted EPS formation, but it inhibited EPS formation when COD/TN>0.5. Thus, long substrate utilization phase and the shortage phase should be avoided during the operation of anammox reactor, and the total nitrogen concentration should be maintained between 150-210 mg/L, IC/TN should be 0.1-0.2, COD /TN should be lower than 0.5.
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