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Community Level Arsenic Water Filter (Model-II)

Type:  Product
IPR Status:  Patent
Secured In:  India

Natural arsenic contamination is a major concern these days in the world including Ganga-Meghna-Brahmaputra delta regions of India. The filtering cartridge is based on three-stage purification technology, where (a) a first layer of cleaned sand is used to remove larger size solid particles, (b) a second layer of mixed metal-oxides (copper oxide:  iron oxide = 1:3) impregnated activated rice husk char and alumina to remove arsenic including fluoride, and bacteria, etc. (c) a third layer of cleaned stone chips further used to stop leaching of chemicals and nanoparticles into purified water. All the adsorbents are placed stage-wise in a container, which acts as cartridge of the arsenic removal plant. This plant is useful for removal of arsenic from ground water which may contain arsenic of 0.01 – 0.50 ppm to below WHO limit (<10 ppb). The plant can filter ~40000 liters of the contaminated water with a flow rate ~400 liters/hour before replacing the cartridge.

Salient Technical Competing Features: 


Community Level Arsenic water filter

Water storage capacity

1500 L

Filtering capacity

40000 L


18 nos, replaceable



Flow rate

350-400 L/Hour

Electricity consumption


Environmental Consideration: 

Arsenic water filter is mainly targeted to the population of over 150 million in world including Ganga-Meghna-Brahmaputra delta regions of India and Bangladesh where there is no access to arsenic free safe drinking water.

The Community Level Arsenic Water Filter (Model-II) prototype of  350-400 L/Hr flow rate having water storage capacity 1500 L & filtering capacity 40,000 L designed by CSIR-CMERI is used to reduce the maximum Arsenic concentration of 300 ppb to less than 10 ppb. It removes Arsenic below the WHO limit (10 ppb) of drinking water. With this technology, the capacity of this Plant can be upgraded.

Status of Commercialization:  Technology has been transferred
Major Raw Materials To Be Utilized :  Naturally available materials used for removal
Techno Economic:  Available on enquiry basis.
Technology Package:  Design drawings (Working prototype is with CMERI)

Last updated : 4 Oct, 2019