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Welcome @ Bruface. Universite Libre de Bruxelles. Dept Water Pollution Control. Environmental Technology ChimH409 (2-0-1). Michel Verbanck mikeverb@ulb.ac.be 2012. Course structure. Part 1. Introduction ( incl. generic methods) Part 2. Air pollution control engineering
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Welcome @ Bruface Universite Libre de Bruxelles Dept Water Pollution Control Environmental Technology ChimH409(2-0-1) Michel Verbanck mikeverb@ulb.ac.be 2012
Course structure Part 1. Introduction (incl. generic methods) Part 2. Air pollution control engineering Part 3. Water & wastewater treatment Part 4. Solid and hazardous wastes
Part 3. Water & wastewater treatment
Development of human activities changes our World Manhattan island over 400 years
Hypoxia Gulf of Mexico "Dead Zone" due to excessive algal growth supported by fertilizer runoff in the Mississippi. Low-oxygen areas appear in red. (NASA and NOAA)
Bringing O2 to the deepest layers of the water reservoir (speece cone, Lake Camanche system)
input support enhancing vegetation growth floats geotextile barrier On-site phosphorus removal in a water reservoir
European Water Framework Directive 2000/60 • requires that all inland and coastal waters within defined river basin districts must reach at least good (ecological) status by 2015 • transboundary if necessary • defines how this should be achieved through the establishment of environmental objectives and ecological targets for surface waters • action plan to be published end 2009 by all Member States
Influence of antecedent dry-weather period Flow rate (m3/s) evacuated by Brussels main combined sewer
low medium highway busy street
Cumulative Suspended Solids Load Volume (cumulative discharge)
Effect of rain events upon the concentration of TSS incoming into WWTPs (Walloon Region 2006) TSS flux cumulated full year / TSS flux for dry spells only Volume cumulated full year / Total volume for dry spells only
Revised design and operation of roadside gully-pots In Brussels-City the traditional gully-pot type is (ductile iron) 177E type designed decades ago.