Double filtration an efficient method to treat arsenic contaminated water

The investigation report ‘Double filtration as an effective process for removal of arsenate and arsenite from drinking water by means of reverse osmosis’ has been published in Elsevier journal Approach Protection and Environmental Protection.


Arsenic is a person of the most risky inorganic pollutants present in drinking water, which is released both equally from specified human functions and by natural means from the Earth’s crust. Arsenic is normally present in water in two oxidation states, as arsenite (As(III)) or arsenate (As(V)). Arsenate is normally less complicated to clear away than arsenite. Consequently, the target of this research is to test the opportunity use of double filtration for improving As(III) removal and to investigate if some thing takes place with membrane, with arsenic solution, or both equally, right after initial filtration of As(III).

With this goal, reverse osmosis experiments below unique problems were being carried out to get facts about As(III) and As(V) removal efficiencies. Concretely, it was studied the result of double filtration of arsenic on membrane surface and solution. What’s more, it was investigated the possible competitiveness concerning arsenic species as properly as the prevalence of oxidation and aging results.

Results verified that double filtration is an efficient strategy to address water that includes arsenite considering that filtration procedure may induce long lasting alterations on the physical construction of this specie, which led to an improvement of As(III) removal performance right after 2nd filtration (removal efficiencies all-around 95%). Ultimately, overall arsenic articles of the handled water right after 2nd filtration fulfilled with the utmost legislated stage for drinking water (10 μg L).

Examine the entire text on ScienceDirect.


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