POLLUTION REDUCTION OF INFLOW RIVERS OF THE TIEGANG RESERVOIR IN BAO’AN DISTRICT, SHENZHEN

LIU Xiaorui; WANG Zhimin; WANG Yinlong

doi:10.13205/j.hjgc.202410004

Volume 42 Issue 10

Oct. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(10): 26-32

HE Miao, ZHANG Zhenyu, CHEN Liudong, TANG Jiayi, CHEN Yijing, YANG Zhendong. EXPLORING TREASURE IN FLY ASH: THE STATUS QUO AND SUSTAINABLE DEVELOPMENT PATH OF RARE EARTH ELEMENT RECOVERY TECHNOLOGY IN FLY ASH[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(10): 121-131. doi: 10.13205/j.hjgc.202410015

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LIU Xiaorui, WANG Zhimin, WANG Yinlong. POLLUTION REDUCTION OF INFLOW RIVERS OF THE TIEGANG RESERVOIR IN BAO’AN DISTRICT, SHENZHEN[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(10): 26-32. doi: 10.13205/j.hjgc.202410004

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POLLUTION REDUCTION OF INFLOW RIVERS OF THE TIEGANG RESERVOIR IN BAO’AN DISTRICT, SHENZHEN

doi: 10.13205/j.hjgc.202410004

1. China Communications First Highway Survey and Design Institute Co., Ltd., Xi'an 710065, China;
2. Xi'an Zhongjiao Environmental Engineering Co., Ltd., Xi'an 710065, China

Received Date: 2023-04-24
Available Online: 2024-11-30

Abstract

Abstract

To study the efficient reduction of pollutants in inflow rivers, this paper took the Tiegang Reservoir in Bao’an District of Shenzhen as the research object, combined with the water quality of inflow rivers and the implementation status of the existing water quality improvement projects, proposed a process of "regulation and storage + treatment + transferring" to treat non-point source pollution in the basin, and analyzed the treatment results of this process. The results showed that the pollutant concentration of the four rivers flowing into the Tiegang Reservoir exceeded the Class Ⅴ in Surface Water Quality Standard of China (GB 3838—2002),and in the river basin, the non-point source pollution of 65000 m³ of initial rainfall water had not been resolved. The project set up six storage tanks to collect the 65000 m³ of initial rainfall water. After storage and regulation, the process of "A²/O biological reaction tank + high-density sedimentation tank + modular open channel ultraviolet disinfection device" was adopted for treatment; after treatment, the removal rate of COD in the initial rain reached 86.9%, and the removal rates of BOD₅, ammonia nitrogen, total nitrogen, and total phosphorus all reached more than 94%. The water quality met the class Ⅳ surface water quality standard, and could directly feed the reservoir inflow river.
- reservoir water quality guarantee,
- initial rainfall water,
- non-point source pollution,
- regulation,
- sewage treatment

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References

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