【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MgCl2·6H2O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。更多还原

【Abstract】 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 MgCl2·6H2O. 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.更多还原