Gate to Gate
Identity ID
c59e5856-1f3e-4543-9e56-a929ba14f77c
Process class
Associated ID
f8190a81-5de9-4b8f-a71e-337cd013dda8
Included activities starts
Included activities ends
Description
The process first intercepts large debris and suspended solids through coarse and fine screens, preventing subsequent equipment blockages. The equalization basin is used to stabilize wastewater flow and concentration, reducing fluctuations during treatment. Next, the vortex grit chamber physically separates inorganic particles from the wastewater, reducing the load on the biological treatment unit. The A/A/O process is the core of the entire system: by alternating anaerobic, anoxic, and aerobic conditions, it achieves organic matter degradation, nitrification of ammonia nitrogen, and denitrification of nitrate, effectively removing nitrogen pollutants. The secondary clarifier further settles microbial flocs generated during biological treatment, further clarifying the effluent. The coagulation-sedimentation tank aggregates fine suspended particles through chemical coagulation, improving water clarity. The denitrifying deep-bed filter further removes nitrates using microorganisms within the deep filter media, while also filtering out residual suspended solids. The ultraviolet (UV) disinfection process utilizes the germicidal effect of UV light to ensure effective removal of pathogenic microorganisms from the effluent, meeting sanitary safety standards.
Activity Description
The wastewater treatment process includes: coarse screens to intercept large debris, equalization tanks to balance water quality and flow; fine screens and vortex grit chambers for removal of fine suspended solids; the A/A/O process achieving phosphorus and nitrogen removal through anaerobic, anoxic, and aerobic environments; secondary clarifiers for sludge sedimentation and separation; chemical coagulation in clarifiers to remove suspended matter; denitrifying deep-bed filters for further purification; and ultraviolet disinfection for pathogen inactivation, ensuring effluent meets discharge standards.
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