Removal of arsenic from contaminated groundwater by solar-driven membrane distillation
2010 (English)In: Environmental Pollution, ISSN 0269-7491, E-ISSN 1873-6424, Vol. 158, no 3, 805-811 p.Article in journal (Refereed) Published
Experimental investigations were carried out on removal of arsenic from contaminated groundwater by employing a new flat-sheet cross flow membrane module fitted with a hydrophobic polyvinylidenefluoride (PVDF) microfiltration membrane The new design of the solar-driven membrane module in direct contact membrane distillation (DCMD) configuration successfully produced almost 100 per cent arsenic-free water from contaminated groundwater in a largely fouling-free operation while permitting high fluxes under reduced temperature polarization For a feed flow rate of 0120 m(3)/h, the 013 mu m PVDF membrane yielded a high flux of 74 kg/(m(2) h) at a feed water temperature of 40 degrees C and, 95 kg/m(2) h at a feed water temperature of 60 degrees C. The encouraging results show that the design could be effectively exploited in the vast arsenic-affected rural areas of South-East Asian countries blessed with abundant sunlight particularly during the critical dry season.
Place, publisher, year, edition, pages
2010. Vol. 158, no 3, 805-811 p.
Membrane distillation, Solar energy, Arsenic separation, Cross flow, module, Hydrophobic membrane, Microfiltration, west-bengal, desalination, water, bangladesh, india, performance, technology, filtration
Other Environmental Engineering Water Engineering
IdentifiersURN: urn:nbn:se:kth:diva-19263DOI: 10.1016/j.envpol.2009.10.002ISI: 000275002900021ScopusID: 2-s2.0-74149091929OAI: oai:DiVA.org:kth-19263DiVA: diva2:337310
QC 201005252010-08-052010-08-052011-02-01Bibliographically approved