In the system used nitrate as electron acceptor,the oxygen consumption was 55.5% less than the system that oxygen was used as electron acceptor. The sludge and CO2 production was 53% and 21.4% less,respectively.

• 反硝化除磷比以氧为电子受体的生物除磷可减少耗氧55.；5%25；剩余污泥的产生量可减少53%25；温室气体CO2的产生量可减少体积分数21