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

Preparation and characterization of plasma-modified PTFE membrane and its application in direct contact membrane distillation

Desalination ◽  
2011 ◽  
Vol 267 (2-3) ◽  
pp. 184-192 ◽  
Author(s):  
Cheng-Lee Lai ◽  
Rey-May Liou ◽  
Shih-Hsiung Chen ◽  
Guan-Wei Huang ◽  
Kueir-Rarn Lee
Keyword(s):  
Direct Contact ◽  
Membrane Distillation ◽  
Ptfe Membrane ◽  
Direct Contact Membrane Distillation

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

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

Potable water recovery from As, U, and F contaminated ground waters by direct contact membrane distillation process

2011 ◽  
Vol 192 (3) ◽  
pp. 1388-1394 ◽  
Author(s):  
Saketa Yarlagadda ◽  
Veera Gnaneswar Gude ◽  
Lucy Mar Camacho ◽  
Saireddy Pinappu ◽  
Shuguang Deng
Keyword(s):  
Direct Contact ◽  
Potable Water ◽  
Membrane Distillation ◽  
Water Recovery ◽  
Distillation Process ◽  
Ground Waters ◽  
Direct Contact Membrane Distillation

scholarly journals Enhanced Performance of Carbon Nanotube Immobilized Membrane for the Treatment of High Salinity Produced Water via Direct Contact Membrane Distillation

Membranes ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 325 ◽  
Author(s):  
Madihah Saud Humoud ◽  
Sagar Roy ◽  
Somenath Mitra
Keyword(s):  
Carbon Nanotube ◽  
Membrane Fouling ◽  
Direct Contact ◽  
Produced Water ◽  
High Salinity ◽  
Membrane Surface ◽  
Membrane Distillation ◽  
Vapor Flux ◽  
Ptfe Membrane ◽  
Direct Contact Membrane Distillation

Membrane distillation (MD) is a promising desalination technology for the treatment of high salinity water. Here, we investigated the fouling characteristics of produced water obtained from hydraulic fracturing by implementing a carbon nanotube immobilized membrane (CNIM) via direct contact membrane distillation. The CNIM exhibited enhanced water vapor flux and antifouling characteristics compared to the pristine membrane. The normalized flux decline with the polytetrafluoroethylene (PTFE) membrane after 7 h of operation was found to be 18.2% more than the CNIM. The addition of 1-Hydroxy Ethylidene-1, 1-Diphosphonic acid (HEDP) antiscalant was found to be effective in reducing the membrane fouling. The salt deposition on the membrane surface was 77% less in the CNIM, which was further reduced with the addition of HEDP in the feed by up to 135.4% in comparison with the PTFE membrane. The presence of carbon nanotubes (CNTs) on the membrane surface also facilitated the regenerability of the membrane. The results indicated that the CNIM regained 90.9% of its initial water flux after washing, whereas the unmodified PTFE only regained 81.1% of its initial flux after five days of operation.

scholarly journals Immobilization of Graphene Oxide on the Permeate Side of a Membrane Distillation Membrane to Enhance Flux

Membranes ◽  
2018 ◽  
Vol 8 (3) ◽  
pp. 63 ◽  
Author(s):  
Worawit Intrchom ◽  
Sagar Roy ◽  
Madihah Humoud ◽  
Somenath Mitra
Keyword(s):  
Mass Transfer ◽  
Graphene Oxide ◽  
Direct Contact ◽  
Membrane Distillation ◽  
Water Vapor Flux ◽  
Vapor Flux ◽  
Ptfe Membrane ◽  
Direct Contact Membrane Distillation ◽  
Water Vapors ◽  
Facile Fabrication

In this paper, a facile fabrication of enhanced direct contact membrane distillation membrane via immobilization of the hydrophilic graphene oxide (GO) on the permeate side (GOIM-P) of a commercial polypropylene supported polytetrafluoroethylene (PTFE) membrane is presented. The permeate side hydrophilicity of the membrane was modified by immobilizing the GO to facilitate fast condensation and the withdrawal of the permeate water vapors. The water vapor flux was found to be as high as 64.5 kg/m2·h at 80 °C, which is 15% higher than the unmodified membrane at a feed salt concentration of 10,000 ppm. The mass transfer coefficient was observed 6.2 × 10−7 kg/m2·s·Pa at 60 °C and 200 mL/min flow rate in the GOIM-P.

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