CHENYong-ling,WUBao-li,YANG Rui,et al.Design and Solution Case of Wastewater Treatment Plant Reconstruction and Expansion under the Condition of Extreme Limited Land Use[J].China Water & Wastewater,2023,39(6):78-82.
Design and Solution Case of Wastewater Treatment Plant Reconstruction and Expansion under the Condition of Extreme Limited Land Use
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第6期
Page:
78-82
Column:
Date of publication:
2023-03-17
- Abstract:
- An expansion project (10×104 m3/d) and reconstruction project (5×104 m3/d) were constructed in a WWTP in Chengyang District, Qingdao. The available land area is 4.48 hm2, the effluent quality needs to meet the first level A limit specified in the national discharge standard, and the construction is required not to affect the normal operation of the WWTP. In the design, the efficient and intensive “five-stage Bardenpho and MBR” process was adopted to ensure that the effluent quality reaches the discharge standard. The construction area was obtained by demolishing the old facilities. The following ways were adopted to improve the space utilization rate: splitting the scale and arrange the same functional structures (biological tank, MBR membrane tank) in different areas; Joint construction of multiple groups of structures (pretreatment section and biological treatment section); Connection of the inlet and outlet water through channels. The construction sequence was optimized in the design, and the requirements of non-stop production and reaching the effluent quality and quantity standard were realized during the construction period. The operation practice showed that the treatment process and design parameters selected in this project had strong impact load resistance, high reliability, excellent treatment performance, and was capable of ensuring the effluent quality meeting the discharge standard.
Last Update:
2023-03-17