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- W4224036816 abstract "Efficient separation of oil-in-water emulsion remains a decisive step for success of oily wastewater treatment. To achieve this goal, a novel strategy regarding combining membrane separation with in situ electrocoagulation based on sacrificial anodes and cathodic hydrogen evolution via conductive metalized fabric membrane was proposed. As a key component of this novel coupling system, nickel functionalized fabric membrane with high hydrophilicity and electrical conductivity (electrical resistance of ∼2 Ω cm −1 ) was successfully prepared via a low-cost and facile route, including steps of PVA (polyvinyl alcohol)/Ni coating and autocatalytic electroless Ni plating. The optimized conductive membranes exhibited high permeate flux (19.3 × 10 5 L m −2 h −1 ·bar −1 ), separation efficiencies (99.5%), and separation stability to separate oil/water mixtures during the gravity-driven filtration process. To achieve the ideal performance to separate oil-in-water emulsion, a coupled electrocoagulation-membrane separation system was constructed with Ni@PVA membrane and Al mesh as the cathode and anode, respectively. It was shown that the coupled electrocoagulation-membrane separation system could achieve 99.4% rejection with high flux of 12.0 × 10 3 L m −2 h −1 ·bar −1 for oil/water emulsion separation, under the current density of 8 mA cm −2 and 20 min electrolysis time. This study revealed that the proposed electrocoagulation-membrane separation system based on Ni@PVA membrane is a promising technique in oil/water separation. • Novel conductive membrane is prepared by a noble metal-free electroless nickel plating. • The conductive membrane separate oil-water with high flux, efficiency and stability. • a new electrocoagulation-membrane system for high oil-water separation was proposed. • In-situ electrocoagulation separated oil/water emulsion with high flux and rejection." @default.
- W4224036816 created "2022-04-19" @default.
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- W4224036816 date "2022-07-01" @default.
- W4224036816 modified "2023-10-15" @default.
- W4224036816 title "Preparation of nickel@polyvinyl alcohol (PVA) conductive membranes to couple a novel electrocoagulation-membrane separation system for efficient oil-water separation" @default.
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- W4224036816 doi "https://doi.org/10.1016/j.memsci.2022.120541" @default.
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