Role of dissolved organic matters (DOM) in membrane fouling of membrane bioreactors for municipal wastewater treatment

Forward Osmosis as a Pre-Treatment Step for Seawater Dilution and Wastewater Reclamation

“…) on organic fouling has been well studied and widely reported using surrogate organic compounds [94]. Their presence has been associated with intense fouling caused by organic foulants via charge neutralization, complexation and forming calcium bridges [95,96].…”

A critical review on characterization strategies of organic matter for wastewater and water treatment processes

“…For instance, many have reported that non-humic fractions of DOM, such as low aromatic HPI neutral, macromolecules (i.e. chitin, carbohydrates, and cellulose) and fatty acids are the most important reasons for irreversible membrane fouling (Tang et al, 2010;Zularisam et al, 2011;Lamsal et al, 2012;Yamamura et al, 2014). Fan et al (2001) also found that only a small pocket of high molecular weight compounds in HPI neutral has high membrane fouling potential, and the fouling potentials of DOM fraction from surface water follows the order: hydrophilic neutral > hydrophobic acids > transphilic acids > hydrophilic charged.…”

“…The membrane fouling affects the membrane performance, such as permeability and the OM rejection (Shon et al, 2006). Earlier studies reported that the humic substances (HS) fraction of OM is a major foulant, which controls the rate and extent of fouling, while recent studies have claimed that hydrophilic and neutral fractions of OM might be the most significant foulants (Tang et al, 2010;Lamsal et al, 2012). Thus, a good characterization of OM in wastewater samples can help optimize the performance of membrane filtration of biologically treated wastewater effluents through using appropriate pre-treatment processes, such as flocculation with FeCl 3 and adsorption with powder activated carbon (Shon et al, 2004).…”

Characterisation of reverse osmosis permeates from municipal recycled water systems using fluorescence spectroscopy: Implications for integrity monitoring

“…Several publications have focused on fouling in membrane bioreactors (MBR) for wastewater treatment [15,[24][25][26][27]. Fluorescence spectroscopy has also been used to monitor and model the performance of membrane bioreactors [28,29].…”