Research Papers by Congjie Gao

1 - 8 of 8 results

Pilot study of seawater nano fi ltration softening technology based on integrated membrane system A pilot-scale ultraﬁltration (UF)–nanoﬁltration (NF) integrated membrane system (IMS) which included a selfcleaning crossﬂow UF ﬁltration process and a dual-stage NF process with a capacity of 100 m3·d−1 NF permeation water was established for seawater softening investigation. The separation perform Desalination 368 (2015)
Improvement of overall water recovery by increasing RNF with recirculation in a NF–RO integrated membrane process for seawater desalination This study explored the effect of increasing nanoﬁltration (NF) permeate recovery (RNF) by recirculation and dosage of chemicals on NF separation performance, concentration polarization (CP) and accumulation of scalingprone ion concentration on NF membrane surface. The related coupling effect on sea Desalination 361 (2015)
Treatment of simulated dilute Ni 2+ -containing wastewater by electrodeionisation with a bipolar membrane: Feasibility and current density distribution A new conﬁguration of electrodeionisation with a bipolar membrane (EDI-BP) with a segment electrode was proposed for the treatment of simulated dilute Ni2+-containing wastewater. The feasibility of EDI-BP was analysed and experimentally validated, and its current density distribution was studied sim Desalination 353 (2014)
Preparation and characterization of composite NF membrane from a graft copolymer of trimethylallyl ammonium chloride onto chitosan by toluene diisocyanate cross-linking A novel positively charged composite NF membrane was prepared using a copolymer graft of trimethylallyl ammonium chloride onto chitosan (GCTACC) as the top selective layer, a poly(acrylonitrile (PAN) ultrafiltration membrane as the support layer and toluene diisocyanate (TDI) as the cross-linking re Desalination 239 (2009)
Preparation and characterization of N,O-carboxymethyl chitosan/Polysulfone composite nanofiltration membrane crosslinked with epichlorohydrin N,O-carboxymethyl chitosan (NOCC) composite nanofiltration membranes crosslinked by ECH were developed using a method of coating and crosslinking, where an epichlorohydrin/ethanol 96.7% (0.067 M KOH) solution was used as the crosslinking agent. The structure and the morphology of the resulting membr Desalination 233 (2008)
Sorption behavior and separation performance of novel facilitated transport membranes for CO2/CH4 mixtures A water-soluble copolymeric membrane material containing tertiary amine and carboxyl groups for CO2 facilitated transport has been synthesized by radical polymerization of DMAEMA(2-N,N-dimethyl aminoethyl methacrylate)-AA(acrylic acid). The composition the copolymer was determined by elemental analy Desalination 223 (2008)
Permeation of CO2 and CH4 through a 2-(N,N-dimethyl amino) ethyl methacrylate and acrylonitrile copolymer membrane A copolymeric membrane material containing a tertiary amino group was synthesized by radical copolymerization of 2-(N,N-dimethyl amino) ethyl methacrylate and acrylonitrile. The chemical structure of the copolymer was analyzed by viscosity measurement, elemental analysis, FTIR and X-ray diffraction Desalination 223 (2008)
UF modules as direct pretreatment of seawater at low temperature for reverse osmosis The essential point for a successful seawater reverse osmosis (SWRO) plant is pretreatment that provides consistent and high-quality feed to SWRO membranes. Advances in membrane technology and increasing requirements on water quality have stimulated the use of ultrafiltration (UF) for SWRO pretreatm Desalination 219 (2008)

Pilot study of seawater nano fi ltration softening technology based on integrated membrane system

A pilot-scale ultraﬁltration (UF)–nanoﬁltration (NF) integrated membrane system (IMS) which included a selfcleaning crossﬂow UF ﬁltration process and a dual-stage NF process with a capacity of 100 m3·d−1 NF permeation water was established for seawater softening investigation. The separation perform

Desalination 368 (2015)

Improvement of overall water recovery by increasing RNF with recirculation in a NF–RO integrated membrane process for seawater desalination

This study explored the effect of increasing nanoﬁltration (NF) permeate recovery (RNF) by recirculation and dosage of chemicals on NF separation performance, concentration polarization (CP) and accumulation of scalingprone ion concentration on NF membrane surface. The related coupling effect on sea

Desalination 361 (2015)

Treatment of simulated dilute Ni 2+ -containing wastewater by electrodeionisation with a bipolar membrane: Feasibility and current density distribution

A new conﬁguration of electrodeionisation with a bipolar membrane (EDI-BP) with a segment electrode was proposed for the treatment of simulated dilute Ni2+-containing wastewater. The feasibility of EDI-BP was analysed and experimentally validated, and its current density distribution was studied sim

Desalination 353 (2014)

Preparation and characterization of composite NF membrane from a graft copolymer of trimethylallyl ammonium chloride onto chitosan by toluene diisocyanate cross-linking

A novel positively charged composite NF membrane was prepared using a copolymer graft of trimethylallyl ammonium chloride onto chitosan (GCTACC) as the top selective layer, a poly(acrylonitrile (PAN) ultrafiltration membrane as the support layer and toluene diisocyanate (TDI) as the cross-linking re

Desalination 239 (2009)

Preparation and characterization of N,O-carboxymethyl chitosan/Polysulfone composite nanofiltration membrane crosslinked with epichlorohydrin

N,O-carboxymethyl chitosan (NOCC) composite nanofiltration membranes crosslinked by ECH were developed using a method of coating and crosslinking, where an epichlorohydrin/ethanol 96.7% (0.067 M KOH) solution was used as the crosslinking agent. The structure and the morphology of the resulting membr

Desalination 233 (2008)

Sorption behavior and separation performance of novel facilitated transport membranes for CO2/CH4 mixtures

A water-soluble copolymeric membrane material containing tertiary amine and carboxyl groups for CO2 facilitated transport has been synthesized by radical polymerization of DMAEMA(2-N,N-dimethyl aminoethyl methacrylate)-AA(acrylic acid). The composition the copolymer was determined by elemental analy

Desalination 223 (2008)

Permeation of CO2 and CH4 through a 2-(N,N-dimethyl amino) ethyl methacrylate and acrylonitrile copolymer membrane

A copolymeric membrane material containing a tertiary amino group was synthesized by radical copolymerization of 2-(N,N-dimethyl amino) ethyl methacrylate and acrylonitrile. The chemical structure of the copolymer was analyzed by viscosity measurement, elemental analysis, FTIR and X-ray diffraction

Desalination 223 (2008)

UF modules as direct pretreatment of seawater at low temperature for reverse osmosis

The essential point for a successful seawater reverse osmosis (SWRO) plant is pretreatment that provides consistent and high-quality feed to SWRO membranes. Advances in membrane technology and increasing requirements on water quality have stimulated the use of ultrafiltration (UF) for SWRO pretreatm

Desalination 219 (2008)

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