Membrane Bioreactor And Nanofiltration Hybrid System For Reclamation Of Municipal Wastewater: Removal Of Nutrients, Organic Matter And Micropollutants

Publisher:
Elsevier Sci Ltd
Publication Type:
Journal Article
Citation:
Bioresource Technology, 2012, 122 (NA), pp. 181 - 188
Issue Date:
2012-01
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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 MW) and membranes (MWCO and surface charge), the MWCO effect was found to be the most critical aspect.
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