Roughing filter
{{short description|Water filter}}
{{Orphan|date=September 2016}}
Roughing filters provide pretreatment for turbid water or simple, low maintenance treatment when high water quality is not needed.
External links
- [https://web.archive.org/web/20031012010403/http://www.sandec.ch/WaterTreatment/WT_RoughingFilter.htm SANDEC page]
- [http://www.bluefuturefilters.com/rough.html Blue filter Inc.] (commercial site)
- [https://web.archive.org/web/20070609124908/http://wedc.lboro.ac.uk/conferences/pdfs/23/Deshpand.pdf Rejuvenation of SSF using HRF technique]
Category:Appropriate technology
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