The study on effective of MBR process and A/O process treating wasterwater containing 50% seawater,comparing the situation change of the ammonia nitrogen removal rate and the total nitrogen removal rate.The results of the experiments shows that: the MBR process and A/O process could run steadily under low temperature during long time domestication,and had a higher removel rate;when the temperature dropped from 25℃ to 15℃,9℃,5℃,the COD removel rate of MBR process was 81.6%,79%,81.1%,82.1%,individually.The CO...