硫磺/硫铁矿复合基质反应器处理二级出水的实验研究  

Experimental Study on Secondary Effluent Treatment in Sulfur/Pyrite Composite Matrix Reactor

作　　者：孙家源 齐琳 杨大鑫 郭宣钰 张文华 蔡巾兰 张传义[1] SUN Jiayuan;QI Lin;YANG Daxin;GUO Xuanyu;ZHANG Wenhua;CAI Jinlan;ZHANG Chuanyi(School of Environment and Spatial Informatics,China University of Mining and Technology,Jiangsu Xuzhou 221116,China)

机构地区：[1]中国矿业大学环境与测绘学院,江苏徐州221116

出　　处：《广州化工》2025年第7期147-149,152,共4页GuangZhou Chemical Industry

基　　金：中国矿业大学2022年国家级大学生创新训练项目(No:202210290052Z)。

摘　　要：为解决城市污水处理厂出水氮磷难达标的问题,本实验选用硫磺硫铁矿复合基质为电子供体构建反应器对城市污水处理厂二级出水进行深度处理,研究不同进水NO^(-)_(3)-N浓度,不同温度对反应器二级出水处理的影响。结果表明,当进水NO^(-)_(3)-N浓度分别为12 mg/L,25 mg/L,35 mg/L,45 mg/L,NO^(-)_(3)-N平均去除率分别为96.68%,95.21%,91.74%,78.99%。随着进水NO^(-)_(3)-N浓度增加,NO^(-)_(3)-N去除率逐渐降低,但NO^(-)_(3)-N去除负荷增加。反应器出水TP浓度基本稳定在0.15 mg/L。反应器温度从35℃到9℃过程中,NO^(-)_(3)-N除率从95.21%下降至48.88%。TP去除率从69.02%下降25.31%。表明温度降低对系统的除磷性能产生较大影响。In order to solve the problem that the effluent nitrogen and phosphorus of urban sewage treatment plants were difficult to reach the standard,this experiment used sulfur pyrite composite matrix was used as the electron donor to construct a reactor for in-depth treatment of the secondary effluent of urban sewage treatment plant,and studied the influence of different influent NO^(-)_(3)-N concentration and temperature on the secondary effluent treatment of the reactor was studied.The results showed that when the NO^(-)_(3)-N concentration of influent water was 12 mg/L,25 mg/L,35 mg/L,45 mg/L,the average NO^(-)_(3)-N removal rate was 96.68%,95.21%,91.74%,78.99%,respectively.With the increase of NO^(-)_(3)-Nv concentration in influent water,NO^(-)_(3)-N removal rate decreased gradually,but NO^(-)_(3)-N removal load increased.The concentration of TP in the reactor effluent was basically stable at 0.15 mg/L.When the temperature of the reactor was from 35℃to 9℃,the NO^(-)_(3)-N removal rate decreased from 95.21%to 48.88%.The removal rate of TP decreased from 69.02%to 25.31%.The results showed that the temperature decrease had a great effect on the phosphorus removal performance of the system.

关 键 词：硫磺/硫铁矿 自养反硝化 脱氮除磷 二级出水 

分 类 号：X703[环境科学与工程—环境工程]