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 Technology Profile

Title:

Arsenic Removal from Groundwater

Value Proposition:

A throughput arsenic removal technique from groundwater

Summary Application:

It is an adsorption technique. A naturally occurring ferruginous manganese ore (FMO) is used as adsorbent for iron and arsenic in contaminated groundwater and may be applied at both domestic and community level. A domestic three compartment filtration unit employing this technique has been developed at NML. It works for both As(lll) and As(V) without any pre-treatment. At domestic level the hardware does not require electricity. The process comes with a sludge management protocol.

Advantages:
  • The process can be used at domestic as well as community level
  • The ferruginous manganese ore (FMO) used as adsorbent for iron and arsenic is non-toxic
  • The community level plant equipment and machinery can be designed as per the client requirement
  • It is a cost effective technique with filtered water cost at 3-5 paisa per litre covering all possible recurring expenditure and the hardware cost at Rs. 600/- per unit (one time).

Tech. Readiness Level:
CSIR-National Metallurgical Laboratory
CSIR-National Metallurgical Laboratory[CSIR-NML]
:  director[at]nmlindia[dot]org
:91-657-2345202
:https://www.nml.res.in
Industrial Applications: Water treatment [Environmental (Clean Tech.)]
Patent(s): IN259803
Photograph(s)