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Rapid Sand Filtration
Rapid Sand Filtration
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Marco Bruni, seecon international gmbh
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Rapid Sand Filtration
F n t s presentat on an more on: www.ssswm. n o.
Copy it, adapt it, use it but acknowledge the source!
CopyrightIncluded in the SSWM Toolbox are materials from various oranisations and sources. Those materials are open source.Followin the open!
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The contents of the SSWM Toolbox reflect the opinions of the respective authors and not necessaril" the official opinion of the fundin or
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ependin on the initial situations and respective local circumstances# there is no uarantee that sinle measures described in the toolbox
will ma$e the local water and sanitation s"stem more sustainable. The main aim of the SSWM Toolbox is to be a reference tool to provide
ideas for improvin the local water and sanitation situation in a sustainable manner. Results depend larel" on the respective situation and
the implementation and combination of the measures described. (n in!depth anal"sis of respective advantaes and disadvantaes and the
suitabilit" of the measure is necessar" in ever" sinle case. We do not assume an" responsibilit" for and ma$e no warrant" with respect to
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Rapid Sand Filtration
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Contents
1. 'oncept
2. 3ow Rapid Sand Filtration 'an 4ptimise SSWM
). esin 5rinciples
6. Treatment 7fficienc" and 3ealth (spects
8. 'onstruction and 4peration 9 Maintenance
. (pplicabilit"
;. (dvantaes and isadvantaes
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Rapid Sand Filtration
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$ater %uriication
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1. Concept
'entralised
level
Semi!
centralised level
3ousehold level
'ommunities
Water suppl"
s"stems indensel"
populated urban
areas3ouseholds
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Rapid Sand Filtration
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$ater %uriication
Rapid sand iltration is a purel" ph"sical drin$in water purificationmethod on a centralised %or semi!centralised& level
8
1. Concept
'entralised
level
Semi!
centralised level
3ousehold level
Rapid Sand Filtration
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Rapid Sand Filtration
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$ater %uriication through Rapid Sand Filtration
$orking %rinciple
(fter bein pre!treated %coaulation!flocculation freshwater flows
throuh a sand! and ravel bed. 3ereb"# particles are removed
throuh a ph"sicalfilter process. Final disinfection.
1. Concept
5re!Treatment
'oaulation!
Flocculation
Rapid Sand
Filtration
5ost!Treatment
'hlorination
Rapid sand iltration is an integral part o a particular water
treatment procedure and cannot produce drinking&water
without precedent and subse'uent treatment steps.
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7/21/2019 Rapid Sand Filtration_120227
7/20Rapid Sand Filtration
F n t s presentat on an more on: www.ssswm. n o.
$ater %uriication through Rapid Sand Filtration
$orking %rinciple
(fter bein pre!treated %coaulation!flocculation freshwater flows
throuh a sand! and ravel bed. 3ereb"# particles are removed
throuh a ph"sicalfilter process. Final disinfection.
;
1. Concept
5re!Treatment
'oaulation!
Flocculation
Rapid Sand
Filtration
5ost!Treatment
'hlorination
Rapid sand iltration is an integral part o a particular water
treatment procedure and cannot produce drinking&water
without precedent and subse'uent treatment steps.
%rocesses are
interlinked
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2. How Rapid Sand Filtration Can Optimise SSWM
Characteristics o "rbanised (reas