LING Yao-zhong,HUHe-ping,WANJing-jing,et al.Study on Solutions for Quality and Efficiency Improvement of Wastewater System—Taking H Island Wastewater System as an Example[J].China Water & Wastewater,2022,38(16):24-28.
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Study on Solutions for Quality and Efficiency Improvement of Wastewater System—Taking H Island Wastewater System as an Example

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第16期 Page: 24-28 Column: Date of publication: 2022-08-17
Author(s):
LING Yao-zhong1; 2;  HU　He-ping1; 2;  WAN　Jing-jing1; 2;  LIAO　Yu3
（1. China Water Resources Pearl River Planning Surveying & Designing Co. Ltd.， Guangzhou 510610， China； 2. Aquatic Ecological Engineering Center， Pearl River Water Resources Commission of the Ministry of Water Resources， Guangzhou 510610， China； 3. Guangdong Zhurong Architecture & Engineering Design Co. Ltd.， Guangzhou 510610， China）
Keywords:
wastewater system;  high water level;  quality and efficiency improvement
Abstract:
Island H is located in the coastal area of South China. The current wastewater system is an interception combined system. The density of the wastewater system in the island is about 2.7 km/km2, and 64 interception wells have been built. The water level of the H island wastewater system is 4.33-5.19 m above the pipe top, which is 4.58-5.46 m higher than the normal operating water level. And the water level of the wastewater system is closely related to the tide level. The COD concentration of the wastewater treatment plant is 108.8-138.7 mg/L, and the BOD5 concentration is 49.2-63.2 mg/L. The actual wastewater collection and treatment efficiency is only 50%. And the wastewater system quality and treatment efficiency should be upgraded. Through the data review and on-site check, the causes for the low quality and efficiency of the wastewater system were analyzed, and the corresponded solutions such as squeezing extraneous water and strengthening maintenance of wastewater system were proposed.
Last Update: 2022-08-17