Mechanical treatment of wastewater prior to Marine Outfall

In contrast to biological treatment systems, the mechanical treatment of wastewater represents a fast to implement and cost-effective solution for the removal of undissolved matter from wastewater flows. New developments in the field of mechanical wastewater treatment can be tailored to meet specific cleaning targets and requirements situations. Especially the combination of very fine apertures (ultra-fine and micro screens) and precipitation/flocculation is able to significantly improve wastewater quality. A virtually solids-free effluent can for example be achieved with the use of micro screens (e.g. a disc filter) with apertures from 20 to 100 micron.