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

Yaxiong Wang

Yongli Sun

Pengfeng Li

Xingcan Zheng

Wei Zhang

Min Yang

Kejian Sui

Wei Shang

Jiaju Li

Qiongqiong Xia

Wenan Zhang

The present disclosure provides a grid system, including a grid body and supports, where the grid body includes a water intake module, a filtering module, a residue scraping module, a residue pressing module, and a water discharge module; the filtering module is disposed at a middle-upper part of the grid body, the water intake module and the residue pressing module are organically coupled at a lower part of the filtering module, and the water intake module includes a water inlet and a water distribution area; the filtering module includes a water retaining platform, an inflow water guide plate, screen plate areas, and a central water retaining weir; the residue scraping module includes scrapers, a driving motor, a support frame, a residue inlet, and a guide rail; the residue pressing module includes a squeezing cylinder, a motor, and a residue outlet.

Large-flux ultra-fine grid system with non-rotating screen plates

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.

Low-carbon nitrogen and phosphorus removal system and process for sewage treatment

Growing community of inventors

Tianjin, China

Yaxiong Wang