Results 21 to 30 of about 5,809 (166)

Synthesis and application of graphene oxide and sulfonated graphene oxide nanoparticles for using in nanofiltration membranes polyether sulfone [PDF]

شیمی کاربردی روز, 2023
In this study, graphene oxide (GO) was synthesized through the improved Hummer method and sulfonated graphene oxide nanoparticles (s-GO) were prepared by effective sulfonation reaction.
Nader Gholami, Hossein Mahdavi
doaj   +1 more source

Dichloroaniline retention by nanofiltration membranes

Water Research, 2005
This study evaluates the performance of two nanofiltration membranes in removing a herbicide: dichloroaniline. The membranes, one polyamide and one cellulose acetate, have a cut-off in the range 150-300 g/mol (manufacturers' data). The experiments were carried out with solutions of dichloroaniline in demineralized water, with concentrations from 1 to ...
Causserand, Christel, Aimar, Pierre, Cravedi, Jean-Pierre, Singlande, Elodie   +3 more
openaire   +4 more sources

Study on the nanofiltration membrane fouling control and cleaning efficiency of micro- and nanobubbles

Desalination and Water Treatment
To effectively prevent membrane fouling caused by inorganic scales, which block membrane pores during the nanofiltration process for direct drinking water treatment, the effects of micro/nanobubble introduction on membrane fouling control and membrane ...
RongKai Dun, YongLei Wang, BaoZhen Liu, Hu Shen, DeSheng Wang, Wei Jian Jia, RongFei Nie   +6 more
doaj   +1 more source

Research progress of anti-pollution modification of nanofiltration membranes based on zwitterion

Gongye shui chuli
Nanofiltration membrane has excellent performance of separating and retaining pollutants in water. The nanofiltration membrane fouling control and anti-fouling enhancement are research focuses of its development.
YIN Mengmeng, WANG Yuhan, ZHANG Kun, WANG Guan, XU Weiguo, WANG Bo   +5 more
doaj   +1 more source

Successful Integration of Membrane Technologies in a Conventional Purification Process of Tannery Wastewater Streams

Membranes, 2013
The aim of this work is to design and integrate an optimized batch membrane process in a conventional purification process used for the treatment of tannery wastewater.
Angelo Chianese, Diana Sannino, Olga Sacco, Marco Stoller   +3 more
doaj   +1 more source

Evaluation of Nanofiltration Membranes for Pure Lactic Acid Permeability

Membranes, 2022
Lactic acid (LA) is an organic acid produced by fermentation or chemical synthesis. It plays a crucial role in the pharmaceutical, food and plastic industries. In the fermentation of, for example, grass silage, LA and different compounds are produced. To
Mayuki Cabrera-González, Amal Ahmed, Khaled Maamo, Mohammad Salem, Christian Jordan, Michael Harasek   +5 more
doaj   +1 more source

Phosphorus removal using nanofiltration membranes

Water Science and Technology, 2011
A high concentration of phosphorus in wastewater may lead to excessive algae growth and de-oxygenation of the water. In this work, nanofiltration (NF) of phosphorus-rich solutions is studied in order to investigate its potential in removing and recycling phosphorus. Wastewater samples from a pulp and paper plant were first analyzed.
C P, Leo, W K, Chai, A W, Mohammad, Y, Qi, A F A, Hoedley, S P, Chai   +5 more
openaire   +2 more sources

Cellulose membranes for organic solvent nanofiltration [PDF]

Journal of Membrane Science, 2018
Abstract Cellulose membranes were fabricated by phase inversion from solutions of cellulose in 1-ethyl-3-methylimidazolium acetate ([EMIM]OAc) as solvent and acetone as volatile cosolvent. The rejection of Bromothymol Blue (624 Da) in ethanol increased and the permeance decreased by increasing the cellulose concentration in the solution prior to ...
Sukma, F. M., Culfaz-Emecen, P. Z.
openaire   +3 more sources

Cyclomatrix Polyphosphazene Organic Solvent Nanofiltration Membranes

SSRN Electronic Journal, 2022
In this work, we report the synthesis and characteristics of cyclomatrix polyphosphazene membranes based on interfacial polymerization between 1,1-tris(4-hydroxyphenyl)ethane and hexachlorocyclotriphosphazene on top of alumina or polyacrylonitrile supports.
Farzaneh Radmanesh, Gerrald Bargeman, Nieck E. Benes   +2 more
openaire   +1 more source

A Superstructure Based Optimization Approach for Regeneration Reuse of Water Network: Optimal Design of a Detailed Nanofiltration Regenerator Network

Frontiers in Chemical Engineering, 2022
Increasing freshwater costs and environmental concerns have necessitated the adoption of strategies for reducing freshwater consumption and effluent water discharge in chemical processes.
Nyasha Jakata, Thokozani Majozi
doaj   +1 more source