'Atmospheric Water Generator' kiosk installed at Secunderabad Railway Station

by Seva Lamberdar Thu Dec 26, 2019 7:21 am

December 13, 2019:

South Central Railway (SCR) has installed 'atmospheric water generator' called 'Meghdoot' at Secunderabad Railway Station. This is the first such initiative taken by the Indian Railways.

'Meghdoot' is developed by Maithri Aquatech and it produces around 1,000 litres of water per day. 'Meghdoot' harvests water directly from air through a series of steps.

It costs Rs 8 per litre with a bottle and Rs 5 per litre if passengers carry their own bottle. 'Meghdoot' is installed under SCR’s green initiatives and water conservation measures. The system fulfils the safety norms of safe and healthy drinking water.

https://www.cnbctv18.com/videos/infrastructure/atmospheric-water-generator-kiosk-installed-at-secunderabad-railway-station-4873551.htm

>>> This machine (Atmospheric Water Generator or AWG) appears best suited for maritime conditions, near a sea beach (or oceanside) where there is shortage of drinking water even though there is a lot of salt water requiring desalination to make it drinkable. Moreover. the air near the beach or oceanside is also rich in water-moisture and may contain some dissolved and undissolved impurities (salt and fine sand etc.).

The atmospheric air near or on a beach, rich in moisture, probably is passed first through the filters inside the machine (AWG) to remove impurities and then cooled to retrieve the water in liquid form.

The machine (cooling air to retrieve drinking water) might not be very useful and economical in areas away from sea / ocean. Near a large river or a lake, where the water does not contain dissolved salt, it will be easier and economical to purify the river / lake water directly using filters to get drinking water (without using a machine to cool the air near a river / lake).

by Seva Lamberdar Thu Dec 26, 2019 8:19 am

It will be interesting to see if someone does cost comparison to get one litre of drinking water in Secunderabad using AWG or Meghdoot (cooling air near river to get drinking water) versus the direct filtration (from river water to drinking water). My feeling is that the second choice (using direct filtration of river water to get drinking water) will be a lot cheaper.

by Seva Lamberdar Thu Dec 26, 2019 9:32 am

Seva Lamberdar wrote:It will be interesting to see if someone does cost comparison to get one litre of drinking water in Secunderabad using AWG or Meghdoot (cooling air near river to get drinking water) versus the direct filtration (from river water to drinking water). My feeling is that the second choice (using direct filtration of river water to get drinking water) will be a lot cheaper.

Incidentally, is AWG really 'Green Initiative' oriented (environmentally friendly) in areas away from the seawater (seabeach / oceanside), such as inland areas (including near rivers and lakes) where the energy (electric power) required to get drinkable water directly from water in river / lake by using filters is probably less than the energy (electric power) required to cool / condense air to get liquid drinkable water by using AWG?

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'Atmospheric Water Generator' kiosk installed at Secunderabad Railway Station

'Atmospheric Water Generator' kiosk installed at Secunderabad Railway Station

Re: 'Atmospheric Water Generator' kiosk installed at Secunderabad Railway Station

Re: 'Atmospheric Water Generator' kiosk installed at Secunderabad Railway Station

Re: 'Atmospheric Water Generator' kiosk installed at Secunderabad Railway Station