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PhD research project on the fate of particles during biological polishing of treated wastewater

Normal 0 false false false EN-US ZH-CN X-NONE/* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif"; color:black;} Practical development of constructed wetlands for effluent polishing has been shown to be surprisingly efficient in improving the water quality of wastewater treatment planteffluent. Many of the processes that cause the observed water quality improvement of effluent are however not well understood. In February 2009 the Dutch acronym for the Foundation for Applied Water Research (STOWA), the department of Aquatic Ecology and Ecotoxicology of the University of Amsterdam (IBED-AEE), Stichting Waternet and Witteveen+Bos started a cooperation to gain a better understanding of the driving processes on suspended particle composition and pathogen neutralization.

The last decade’s development of biological filtration systems have provided water managers with a tool for polishing wastewater treatment plant effluents. Constructed wetlands are designed to reduce the levels of nutrients, particles, pathogens and other contaminants from treated wastewater. Data from practical pilot experiments and full operational constructed wetland systems have shown promising results in improving the water quality of sewage treatment plant effluent to a level equal or even better than receiving, natural water bodies. This opens opportunities for reuse of this good quality water for industrial and conservation purposes like drinking water production, inflow into nature reserves.

Waternet

STOWA

Witteveen en Bos

IBED-AEE