Gate to Gate
Identity ID
58807c8a-e7fc-43b9-8685-693878175b25
Process class
Associated ID
bbeaef16-583a-4b55-8dd1-fcefd32cb0cd
Included activities starts
Included activities ends
Description
The process first removes large suspended solids and floating matter from the wastewater through coarse and fine screens in the pretreatment stage, aiming to reduce the load on subsequent treatment processes and lay a solid foundation for biological treatment. Subsequently, the modified Bardenpho bioreactor serves as the core treatment unit, employing advanced biological treatment technology to effectively degrade organic pollutants in the wastewater through microbial metabolism, while simultaneously achieving removal of nutrients such as nitrogen and phosphorus. During this stage, microbial growth and proliferation are promoted by controlling dissolved oxygen levels and organic loading, while nitrogen removal is achieved through nitrification and denitrification processes, and phosphorus discharge is reduced via biological phosphorus removal mechanisms. Subsequently, the peripheral feed and peripheral discharge secondary sedimentation tank is designed to remove suspended solids generated after biological treatment. Through sedimentation, the treated effluent becomes clearer. The sedimentation efficiency of this stage directly affects the performance of subsequent treatment units and the quality of the effluent, making it a critical step in ensuring stable compliance of the effluent with discharge standards. The ballasted high-efficiency clarifier is a crucial step for further effluent purification. By adding specific media, it enhances sedimentation efficiency and effectively removes fine particles and some dissolved pollutants from the water. The application of this technology improves sedimentation performance, reduces sludge production, and alleviates the burden on subsequent sludge treatment. Finally, the ultraviolet (UV) and sodium hypochlorite combined disinfection system thoroughly inactivates bacteria, viruses, and other microorganisms in the water through UV irradiation and the chemical action of sodium hypochlorite, ensuring that the effluent meets national sanitary standards.
Activity Description
This sewage treatment process includes: a pretreatment stage where coarse and fine screens remove large suspended solids and floating materials from wastewater to protect subsequent treatment units; the modified Bardenpho bioreactor effectively removes organic matter and nutrients through microbial metabolism, achieving nitrogen and phosphorus removal; the periphery-feed and periphery-flow secondary clarifier removes suspended solids after biological treatment via sedimentation, improving effluent clarity; the ballasted high-efficiency clarifier enhances sedimentation efficiency by adding ballast media, further removing fine particles; finally, the ultraviolet (UV) and sodium hypochlorite disinfection unit combines UV irradiation and sodium hypochlorite for disinfection, ensuring the effluent meets health standards. Emission requirements.
Process Description
Wastewater treatment services typically include four main aspects: pretreatment, primary treatment, secondary treatment, and tertiary treatment, ensuring the stable operation of the wastewater treatment system and compliance of the effluent water quality with regulatory standards.
Time period
2022
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
This activity represents wastewater treatment with specific technologies in a WWT plant