North China Municipal Engineering Design & Research Institute Co., Ltd.

Wenan Zhang

Pengfeng Li

Yongli Sun

Xingcan Zheng

Wei Shang

Yaxiong Wang

Qiongqiong Xia

The disclosure belongs to the field of sewage treatment technology, in particular to a low-carbon nitrogen and phosphorus removal system and process for sewage treatment. The system of the disclosure includes a primary sedimentation fermentation tank, a mainstream modified AO unit and a bypass anammox unit. The disclosure sets a denitrification phosphorus removal functional zone in the anoxic tank of the AO system, and sets a deoxygenation zone in the aerobic tank. Combined with the primary sedimentation fermentation tank, the efficient utilization of the carbon source of the AO process is strengthened. The system has good effluent quality and does not require the addition of a carbon source, and the aeration energy consumption is low, which achieves efficient and low-carbon nitrogen and phosphorus removal.

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Tianjin, China

Wenan Zhang