San Francisco study proves impaired source still feasible
Robert Castle, Water Quality Manager, Marin Municipal Water District, USA
The first-pass RO units on skids with the tabletop second-pass unit
The Marin Municipal Water District (MMWD), near San Francisco, USA, has been exploring seawater desalination to provide a drought-proof supplement to its over-extended water supply.
Desalination of San Francisco Bay water presents challenges for pretreatment due to the frequent changes in water quality from the ebb and flow of the tides and winds, seasonal changes in the flows of two major rivers (Sacramento and San Joaquin), and impacts from stormwater and industrial discharges. It also presents technical and sociological challenges to convince customers that high quality drinking water can be produced from an impaired water source.
A 12-month desalination pilot program was carried out to achieve the following main objectives:
This article appeared in D&WR magazine's August/September 2008 issue.
Posted on 12 January 2009
Source: Desalination & Water Reuse
This story is tagged as:
California | Desalination | Environment | Research | Seawater | USA
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