Abstract
Surrounding vegetation, animal, human and microbiological decomposition are the strong source of humic acid (HA) falling into the surface water bodies during the process of rain-generated runoff in monsoon. HA contains various functional groups such as carboxylic, phenolic, hydroxyl and quinine which are the major foulants. Contact of HA may have adversarial health issue to human being namely goiter, black foot and cancer disease. The Environmental Protection Agency (EPA) has prescribed maximum permissible limit of 2 ppm of HA content in the drinking water. Membrane technology is the prominent technology for HA removal. However, membrane fouling due to foulants is one of the major issues. In the present work hydrophilic polysulfone membrane was synthesized using water soluble polyethylene glycol monomethyl ether (PEGME) of 5000 molecular weight. Membrane was characterized for the structure, morphology, hydrophilicity, fouling and rejection percentage of HA. Blended membrane shows very high rejection percentage of HA and less fouling than plain membrane.
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