侧流技术强化MUCT工艺处理低碳氮比生活污水研究  

Study on Sidestream Technology Strengthening MUCT Process for the Treatment of Domestic Wastewater with Low Carbon to Nitrogen Ratio

作　　者：汪琴琴 肖杰 熊春梅 王春 杨长军 WANG Qin-qin;XIAO Jie;XIONG Chun-mei;WANG Chun;YANG Chang-jun(School of Geoscience and Eeirvirorunental Engineering,Southwest Jiaotong University,Chengdu 610031,China;Sichuan Academy of Eenvironmental Sciendes,Chengdu 610041,China)

机构地区：[1]西南交通大学地球科学与环境工程学院,成都610031 [2]四川省生态环境科学研究院,成都610041

出　　处：《四川环境》2022年第3期20-26,共7页Sichuan Environment

摘　　要：为解决城市污水的碳源有机物严重不足现象,采用侧流技术强化MUCT工艺进行脱氮除磷效率研究,并与常规MUCT工艺系统中的污染物去除情况进行了对比,综合考虑选择侧流药剂为Ca (OH)_(2)和MgCl_(2)·6H_(2)O的对模拟废水的最佳侧流比分别为50%和40%。而在最佳侧流比下两种侧流药剂强化MUCT工艺去除实际生活污水中污染物的效果中得出,只有COD和能达到《四川省岷江、沱江流域水污染物排放标准》;对TN和TP的去除效果均只能达到《城镇污水处理厂污染物排放标准》(GB18918-2002)的一级排放标准的A级标准。此研究对今后碳源有机物低的城市生活污水的处理提供了一个参考方向。In order to solve the serious shortage of carbon source organic matter in urban sewage,this paper uses the sidestreamtechnology to strengthen the MUCT process to study the efficiency of nitrogen and phosphorus removal,and compares the pollutant removal situation with the conventional MUCT process system. Considering comprehensively,the optimal sidestream ratio is 50% when the sidestream agent is Ca(OH)_(2),and the optimal sidestream ratio is 40% when the sidestream agent is MgCl_(2)·6H_(2)O. However,under the optimal sidestream ratio,the effect of the two sidestream agents to strengthen the MUCT process to remove pollutants in actual domestic sewage is obtained,only COD and can reach the " Discharge standard of water pollutants in Minjiang and Tuojiang River Basins of Sichuan Province ". The removal effect of TN and TP can only reach grade A of the first level discharge standard of " the urban sewage treatment plant pollutant emission standard"( GB18918-2002).This study provides a reference direction for the treatment of municipal sewage with low carbon source organic matter in the future.

关 键 词：侧流处理技术 MUCT工艺 除磷效率 低碳氮比 生活污水 

分 类 号：X502[环境科学与工程—环境工程]