Magnetic ion exchange (MIEX®) resin as a pre-treatment to a submerged membrane system in the treatment of biologically treated wastewater

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Journal Article
Desalination, 2006, 192 (1-3), pp. 296 - 302
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Magnetic ion exchange (MIEX®) resin can remove a majority of hydrophilic compounds and a significant amount of hydrophobic compounds from biologically treated secondary effluent within a short contact time of 20 min. It removed a majority of small molecular weight organic compounds from the wastewater. MIEX® resin can easily be regenerated and even after several regenerations, it gives almost the same organic removal efficiency. MIEX® process, when used as pre-treatment to a submerged membrane reactor, resulted in a very high organic removal while significantly reducing the membrane fouling. The membrane fouling was further reduced by an addition of a small dose of powdered activated carbon (PAC) in the submerged membrane reactor. Combining MIEX® process with other pre-treatment methods such as adsorption, very high removal of organic matter can be achieved. © 2006.
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