title: Membrane bioreactor and nanofiltration hybrid system for reclamation of municipal wastewater: removal of nutrients, organic matter and micropollutants.
abstract: A membrane bioreactor (MBR) and nanofiltration (NF) hybrid system was investigated to demonstrate the performance of treating nitrogen, phosphorus and pharmaceuticals and personal care products (PPCPs) in municipal wastewater. With the MBR and NF (molecular weight cut off (MWCO): 210 Da), the concentration of total nitrogen (TN) and total phosphorus (TP) was effectively reduced by nitrification by MBR and negatively charged surface of NF (TN: 8.67 mgN/L and TP: 0.46 mgP/L). Biosorption and microbial decomposition in MBR seem to be major removal mechanisms for the removal of PPCPs. Among various parameters affecting the removal of PPCPs by NF, namely, physicochemical properties of the PPCPs (charge characteristics, hydrophobicity and M(W)) and membranes (MWCO and surface charge), the MWCO effect was found to be the most critical aspect.
authors.affiliation: School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, Republic of Korea. kmchon@gmail.com
authors.forename: Kangmin
authors.initials: K
authors.lastname: Chon
authors.forename: Ho
authors.initials: H
authors.lastname: KyongShon
authors.forename: Jaeweon
authors.initials: J
authors.lastname: Cho
mesh_terms: D019149:Bioreactors; D002947:Cities; D005374:Filtration / Q000295:instrumentation*; D005453:Fluorescence; D006795:Household Products / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D008567:Membranes, Artificial; D036103:Nanotechnology / Q000295:instrumentation*; D009584:Nitrogen / Q000302:isolation & purification; D009930:Organic Chemicals / Q000302:isolation & purification; D010758:Phosphorus / Q000302:isolation & purification; D056910:Republic of Korea; D062065:Wastewater / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000295:instrumentation*
chemical_list: D008567:Membranes, Artificial; D009584:Nitrogen; D009930:Organic Chemicals; D010758:Phosphorus; D062065:Wastewater; D014874:Water Pollutants, Chemical