Underground structure pattern and multi AO reaction with step feed concept for upgrading an large wastewater treatment plant

3rd International Conference on Energy Equipment Science and Engineering

Peng, Yi^1 ; Zhang, Jie^1 ; Li, Dong^1

Key Laboratory of Beijing Water for Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing

100124, China^1

关键词: Lighting systems;    New technologies;    Re-claimed water;    Reaction process;    Treatment capacity;    Treatment technologies;    Urban environments;    Wastewater treatment plants;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012056/pdf
DOI  :  10.1088/1755-1315/128/1/012056

来源: IOP

【 摘 要 】

A large wastewater treatment plant (WWTP) could not meet the new demand of urban environment and the need of reclaimed water in China, using a US treatment technology. Thus a multi AO reaction process (Anaerobic/oxic/anoxic/oxic/anoxic/oxic) WWTP with underground structure was proposed to carry out the upgrade project. Four main new technologies were applied: (1) multi AO reaction with step feed technology; (2) deodorization; (3) new energy-saving technology such as water resource heat pump and optical fiber lighting system; (4) dependable old WWTP's water quality support measurement during new WWTP's construction. After construction, upgrading WWTP had saved two thirds land occupation, increased 80% treatment capacity and improved effluent standard by more than two times. Moreover, it had become a benchmark of an ecological negative capital changing to a positive capital.