Integration of anammox into the MBR process for main stream sewage treatment

Abstract The integration of anaerobic ammonia oxidation (anammox) into the membrane bioreactor (MBR) process (AX-MBR) is proposed in this study to reduce operating costs. temperature was not controlled during study. Anammox, denitrification, and nitrification were studied AX-MBR for 210 days. reactor fed with mainstream sewage from Guilin City, China. results showed that could run reduced dissolved oxygen (DO) concentration, COD, NH4+-N, total nitrogen removal maintained or improved. microbial analysis demonstrated added anammox sludge survive AX-MBR, but diversity decreased. Nitrospira, Candidatus Kuenenia, Nitrosomonas dominated sludge. In a word, developed treat appropriate management, operation costs are expected by decreasing amount aeration.