Enhanced performance of porous forward osmosis (FO) membrane in the treatment of oily wastewater containing HPAM by the incorporation of palygorskite
Qianwen Zhang, Wande Ding, Huanzhen Zhang, Kefeng Zhang, Zhili Wang, Jiayu Liu
Abstract
, which was much higher than that for pure polysulfone (PS) membranes. Besides, the comparison between ultrafiltration (UF) and FO performance in treating HPAM solution indicated that FO possessed better antifouling capacity, since less decline and higher recovery of water flux were observed during the FO process. Furthermore, recycling the draw solution gave an almost unchanged water flux, which suggested the feasibility of draw solute regeneration in the FO process. This work broadens the application field of porous FO technology and may pave a new way in the treatment of PFPW.
Topics & Concepts
PalygorskiteForward osmosisWastewaterMembraneChemical engineeringPorosityOsmosisChemistryChromatographyMaterials sciencePulp and paper industryEnvironmental scienceEnvironmental engineeringReverse osmosisAdsorptionOrganic chemistryEngineeringBiochemistryMembrane Separation TechnologiesMembrane-based Ion Separation TechniquesElectrohydrodynamics and Fluid Dynamics