System achieves new level of efficiency in harnessing sunlight to make fresh potable water from seawater – Cambridge

A completely passive solar-powered desalination system developed by researchers at MIT and in China could provide more than 1.5 gallons of fresh drinking water per hour for every square meter of solar collecting area.

Such systems could potentially serve off-grid arid coastal areas to provide an efficient, low-cost water source.

The system uses multiple layers of flat solar evaporators and condensers, lined up in a vertical array and topped with transparent aerogel insulation. It is described in a paper appearing today […]

System achieves new level of efficiency in harnessing sunlight to make fresh potable water from seawater – Cambridge2020-03-13T15:29:54+01:00

MIT Engineers Turn Desalination Waste into Useful Chemicals

Engineers from MIT have devised a new approach for turning desalination waste into useful chemicals.

Modern desalination processes often leave behind a lot of highly concentrated brine, which is usually disposed of by dumping it back into the sea.

This process requires costly pumping systems which have to be managed carefully to prevent damage to marine ecosystems. 

(LINK).

MIT Engineers Turn Desalination Waste into Useful Chemicals2019-02-19T12:11:07+01:00

MIT tech could let desalination plants use their own brine waste

When salt is removed from seawater in desalination plants, the byproduct is – not surprisingly – a lot of highly-concentrated salty brine.

Ordinarily, this is just dumped back into the sea, which can harm the environment. Thanks to a new treatment process, however, that brine could actually be used to desalinate more water.

Developed by a research team at MIT, the proprietary system incorporates what are described as “well-known and standard chemical processes.” These include a nano-filtration process to initially […]

MIT tech could let desalination plants use their own brine waste2019-02-16T05:43:30+01:00
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