Green Tank
As only the high-concentration sewage, low-concentration sewage, sedimentation water get treated/connected to the
treatment facility, the capacity of the sewage treatment plant is decreased, and due to the undercurrent system
operation by concentration, the facility size is small and efficient management is possible. In the event of continuous
inflow of sewage water, the sewer overflows are filtered and discharged.
Name of Construction Method
Green Tank
Outline

Overview of Construction Method
①
Inflow → pre-treatment (screen, sedimentation) → high-concentration sewage (undercurrent) → low-concentration sewage undercurrent, sedimentation) → filtration → (if needed ) disinfection → discharge
②
Principle :
- Inflow, pre-treatment part :screen, sedimentation function
- Storage part: high-concentration sewage undercurrent tank, low-concentration sewage undercurrent, sedimentation tank
- Filter part: low-concentration sewage tank’s overflow filtration treatment, and after heavy rain, low-concentration sedimentation tank’s supernatant filtration treatment
- Disinfection part: disinfection treatment of outflowing water (if needed)
③
Maintenance :
- - After heavy rain, high-concentration undercurrent water gets treated/connected to the sewage treatment facility
- - If the heavy rain comes to a stop, low-concentration sewage water gets treated/connected to the sewage treatment facility
- - Filter part’s automatic filter media washing water & cleaning water get treated/connected to the sewage treatment facility
- - Regular inspection 2~3 times a year
Excellence of Technology
-As only the high-concentration sewage, low-concentration sewage, sedimentation water get treated/connected to the treatment facility, the capacity of the sewage treatment plant is decreased
-due to the undercurrent system operation by concentration, the facility size is small and efficient management is possible.
-In the event of continuous inflow of sewage water, the sewer overflows are filtered and discharged.