SciELO - Scientific Electronic Library Online

vol.38 issue5Point-of-use water purification using clay pot water filters and copper meshFluoride concentrations in groundwater and impact on human health in Siloam Village, Limpopo Province, South Africa author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand



Related links

  • On index processCited by Google
  • On index processSimilars in Google


Water SA

On-line version ISSN 1816-7950
Print version ISSN 0378-4738


TEWARI, PK; SINGH, RK; BATRA, VS  and  BALAKRISHNAN, M. Field testing of polymeric mesh and ash-based ceramic membranes in a membrane bioreactor (MBR) for decentralised sewage treatment. Water SA [online]. 2012, vol.38, n.5, pp.727-730. ISSN 1816-7950.

This paper presents the initial findings of field testing of 2 low-cost membrane filters, viz. 30 μm polymeric mesh and 2-6 μηι macroporous waste-ash based ceramic filter, in a submerged membrane bioreactor (MBR) employing batch anoxic and aerobic conditions. The influent was raw wastewater from a residential complex located near Delhi, India. The results indicated that the ceramic filter was able to operate for longer periods without cleaning; however, there is a limit to the transmembrane pressure it can withstand. The suspended solids retention was high with both filters (average of 96%). Moderate reduction in chemical oxygen demand (COD), total nitrogen (NH,+) and total phosphorus (PO,3) was achieved. The improvements in operation required in such systems are also underlined.

Keywords : membrane separation; activated sludge, sewage treatment; polymeric mesh; fly ash ceramic membrane.

        · text in English     · English ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License