Finescreening of raw wastewater
As part of a research program, supported by STOWA (Dutch acronym for the Foundation for Applied Water Research), a Dutch Water Authority installed a Salsnes finescreen at its facilities. The operational results of the finescreen are intensively monitored, as well as any changes in the biology with regard to eg. sludge characteristics, denitrification and biological phosphorus uptake.
The plant is designed to treat the total dry weather flow, and may treat capacities up to 500 m3/h at rainy water conditions. The surplus is bypassing the finescreen and is fed directly into the anaerobic selector tank.
The average TSS in the feed is approximately 450 mg/L, but as a result of the first flush peak concentrations are measured well above 1,200 mg/L.
The WWTW is an activated sludge system with a biological capacity of 29,920 p.e. at 150 g TOC/day (33,000 p.e. at 136 g TOC/day). The hydraulic capacity at DWF is 385 m3/h and at RWF 1,800 m3/h
Finescreening of raw wastewater
As part of a research program, supported by STOWA (Dutch acronym for the Foundation for Applied Water Research), a Dutch Water Authority installed a Salsnes finescreen at its facilities. The operational results of the finescreen are intensively monitored, as well as any changes in the biology with regard to eg. sludge characteristics, denitrification and biological phosphorus uptake.
The plant is designed to treat the total dry weather flow, and may treat capacities up to 500 m3/h at rainy water conditions. The surplus is bypassing the finescreen and is fed directly into the anaerobic selector tank.
The average TSS in the feed is approximately 450 mg/L, but as a result of the first flush peak concentrations are measured well above 1,200 mg/L.
The WWTW is an activated sludge system with a biological capacity of 29,920 p.e. at 150 g TOC/day (33,000 p.e. at 136 g TOC/day). The hydraulic capacity at DWF is 385 m3/h and at RWF 1,800 m3/h