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以T市J再生水厂出厂水为研究对象,利用生物膜反应器模拟再生水配水管网系统。通过微生物的培养和加氯消毒发现,培养40 d后出水和生物膜异养菌达到平衡,出水达5.63 log(CFU/mL),膜片达5.13 log(CFU/cm2)。加氯消毒后出水和膜片上异养菌随着出水自由氯和总氯的增加而降低,通过比较可知控制出水自由氯0.2 mg/L、总氯0.5 mg/L可以有效控制再生水配水管网中异养微生物的再生长繁殖现象,同时可使总大肠菌群处于水质标准值以下。TEM分析表明,在聚碳酸酯片表面生物膜中细菌主要以杆状细菌为主。
Taking the factory water of T City J Reclaimed Water Plant as the research object, the biofilm reactor was used to simulate the reclaimed water distribution network system. Microbial culture and chlorination disinfection showed that after 40 days of culture, the effluent and biotrophic heterotrophic bacteria reached equilibrium, the effluent reached 5.63 log (CFU / mL) and the membrane reached 5.13 log (CFU / cm2). Chlorophyll disinfection after effluent and diaphragm heterotrophic bacteria with free chlorine and total chlorine decreased, through the comparison shows that the control of free chlorine 0.2 mg / L, total chlorine 0.5 mg / L can effectively control the distribution network of reclaimed water In heterotrophic microorganisms reproduce the phenomenon of reproduction, while the total coliforms in the water quality standards below. TEM analysis showed that the bacterium in the biofilm on the surface of polycarbonate sheet mainly consisted of bacilli.