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WATER UNIT

MEMBRANE SUPPORTED NANOCATALYSTS

Membrane supported nanocatalysts as treatment options for polluted water and wastewater. Total mineralisation and degradation of organic compounds  using  membrane supported  nanocatalysts which have high  degradation rates towards   selected compounds are developed  and fabricated in-house.


They are applied in the degradation and mineralisation of organic pollutants, particularily endocrine disruptors, from water and wastewater. The treatment of wastewater and polluted discharges at source will assist water utilities in managing their treatment processes better and minimising treatment system failure. Potentially endocrine disrupting compounds are hard to remove by conventional treatment methods leading to persistent levels in treated water and wastewater which are best dealt with at source. Our nanocatalyst based systems aims to totally degrade and mineralise common organic pollutants at source or at point of use.

NANOSTRUCTURED POLYMERIC ABSORBENTS

Nanostructured  polymeric  absorbents  for  the  capture  of  organics  and heavy metals. Adsorption modules with low pressure drops for fast removal of organics and heavy metals.


Applied in the effective removal of pathogens from potable water.   Our goals are to provide cheap, nanotechnology  based  systems  that  will  require  minimal  technology  training  and  energy  input making  them  suitable  for  rural  and  poor communities. This will alleviate and hopefully reduce the frequency of epidemic outbreaks caused by waterborne pathogenic organisms like cholera.

NANOSTRUCTURED POLYMERIC FILTRATION MEMBRANES

Nanostructured   polymeric   filtration    membranes   for   potable   water production.  Comprising flat sheet and capillary ultrafiltration membranes, fabricated in-house, exhibit anti-fouling properties and enhanced producti-vity,  imparted  through  chemical  grafting  and  the incorporation of nano-materials.  Imparting hydrophilicity to old and newly formulated polymeric membranes  as a  way  of  minimising  fouling  and  increasing  membrane lifespan is generally accepted as the best method.


Applied  in the removal  of  heavy  metals  from  water.  Toxic  heavy metal based pollution  has reached  epidemic proportions  in our country  due to mining  activities  and  industries that  illegally  discharge  wastewater into water systems due to the perceived cost of treatment to meet  regulatory discharge  levels.    Our  technology   is  geared   towards  the   removal  of selected heavy metals from water at low environmental impact.

ELECTROSPUN NANOFIBERS

Electrospun  nanofibers,  fabricated  through  electrospinning,  has  potential  application  as  water filters. Various polymers, polymer blends and nanocomposite fibres are produced, with a variety of nanomaterials embedded in the polymer nanofibers to explore antimicrobial and other unique fibre properties.

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