Surfactant effects on water recovery from produced water via direct-contact membrane distillation

2017 ◽  
Vol 528 ◽  
pp. 126-134 ◽  
Author(s):  
Nick Guan Pin Chew ◽  
Shanshan Zhao ◽  
Chun Heng Loh ◽  
Nadia Permogorov ◽  
Rong Wang
Keyword(s):  
Direct Contact ◽  
Produced Water ◽  
Membrane Distillation ◽  
Water Recovery ◽  
Direct Contact Membrane Distillation ◽  
Surfactant Effects

scholarly journals Surface Modification of PVDF Membranes for Treating Produced Waters by Direct Contact Membrane Distillation

2019 ◽  
Vol 16 (5) ◽  
pp. 685 ◽  
Author(s):  
Mohanad Kamaz ◽  
Arijit Sengupta ◽  
Ashley Gutierrez ◽  
Yu-Hsuan Chiao ◽  
Ranil Wickramasinghe
Keyword(s):  
Surface Modification ◽  
Surface Properties ◽  
Direct Contact ◽  
Produced Water ◽  
Surface Oxidation ◽  
Membrane Distillation ◽  
Mineral Salts ◽  
Microscopy Imaging ◽  
Pvdf Membrane ◽  
Direct Contact Membrane Distillation

Direct contact membrane distillation (DCMD) has been conducted to treat hydraulic fracturing-produced water using polyvinylidenedifluoride (PVDF) membranes. Tailoring the surface properties of the membrane is critical in order to reduce the rate of adsorption of dissolved organic species as well as mineral salts. The PVDF membranes have been modified by grafting zwitterion and polyionic liquid-based polymer chains. In addition, surface oxidation of the PVDF membrane has been conducted using KMnO4 and NaOH. Surface modification conditions were chosen in order to minimize the decrease in contact angle. Thus, the membranes remain hydrophobic, essential for suppression of wetting. DCMD was conducted using the base PVDF membrane as well as modified membranes. In addition, DCMD was conducted on the base membrane using produced water (PW) that was pretreated by electrocoagulation to remove dissolved organic compounds. After DCMD all membranes were analyzed by scanning electron microscopy imaging as well as Energy-Dispersive X-Ray spectroscopy. Surface modification led to a greater volume of PW being treated by the membrane prior to drastic flux decline. The results indicate that tailoring the surface properties of the membrane enhances fouling resistance and could reduce pretreatment requirements.

scholarly journals Treatment of Simulated Coalbed Methane Produced Water Using Direct Contact Membrane Distillation

Water ◽  
2016 ◽  
Vol 8 (5) ◽  
pp. 194 ◽  
Author(s):  
Dong-Wan Cho ◽  
Hocheol Song ◽  
Kwangsuk Yoon ◽  
Sewoon Kim ◽  
Jeongmin Han ◽  
...  
Keyword(s):  
Coalbed Methane ◽  
Direct Contact ◽  
Produced Water ◽  
Membrane Distillation ◽  
Direct Contact Membrane Distillation

Water recovery from hydrolysed human urine samples via direct contact membrane distillation using PVDF/PTFE membrane

2019 ◽  
Vol 211 ◽  
pp. 610-617 ◽  
Author(s):  
Nomcebo Khumalo ◽  
Lebea Nthunya ◽  
Sebastiaan Derese ◽  
Machawe Motsa ◽  
Arne Verliefde ◽  
...  
Keyword(s):  
Human Urine ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Urine Samples ◽  
Water Recovery ◽  
Ptfe Membrane ◽  
Human Urine Samples ◽  
Direct Contact Membrane Distillation

Steady state evaluation with different operating times in the direct contact membrane distillation process applied to water recovery from dyeing wastewater

2020 ◽  
Vol 230 ◽  
pp. 115892 ◽  
Author(s):  
Regilene de Sousa Silva ◽  
Heloisa Ramlow ◽  
Carolina D' Ávila Kramer Cavalcanti ◽  
Rita de Cassia Siqueira Curto Valle ◽  
Ricardo Antonio Francisco Machado ◽  
...  
Keyword(s):  
Steady State ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Water Recovery ◽  
Distillation Process ◽  
Dyeing Wastewater ◽  
Direct Contact Membrane Distillation ◽  
State Evaluation
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