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Showing 1 to 10 of 10 for “"direct contact membrane distillation"”.
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Investigations on Solar Powered Direct Contact Membrane Distillation
… and electricity based desalination. Multi-effect Distillation (MED), Multi-Stage Flashing (MSF), Membrane Distillation (MD) fall under former and Reverse Osmosis (RO), Electro-Dialysis (ED) fall under later. MD offers an attractive solution for seawater as well as brackish water distillation. It …
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CFD simulation of polarization phenomena in direct contact membrane distillation systems
Direct contact membrane distillation (DCMD) is a thermal process in which warm feed and cool distilled water flow on opposite sides of a hydrophobic membrane. The temperature difference causes water to evaporate from the feed, travel through the membrane, and condense in the distillate. Because …
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Modeling Sensible Heat Driven Direct Contact Membrane Distillation Treatment of Oilfield Produced Water
… was developed for predicting the performance of direct contact membrane distillation (DCMD) to evaluate the feasibility of using sensible heat to drive DCMD treatment of oilfield produced water. Algorithms for performance prediction of instantaneous and counter-current DCMD flow were developed. …
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Investigation of Membrane Fouling and Cleaning in Direct Contact Membrane Distillation of Municipal Wastewater
… water and would require additional treatment. Membrane distillation may be applicable in some circumstances to treat the effluent from municipal wastewater treatment plants with a low grade heat source for direct potable reuse. This project investigated the chemical cleaning efficiency of …
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Surface Modification of PVDF Membranes for Treating Produced Waters by Direct Contact Membrane Distillation
<p>Direct contact membrane distillation is a promising unit operation for treating hydraulic fracturing flow back and produced water. However, while a hydrophobic membrane is essential to prevent the passage of water from the feed to the permeate side, fouling by dissolved organic species can …
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Carbon-nanotube-based membranes for water desalination by membrane distillation
… combination with polymers and metals to enhance membrane lifespan and performance. Carbon nanotube Buckypapers were used as a template to engineer composite structures. The new materials have been thoroughly characterized for their thermal, structural and performance characteristics. The …
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Theoretical and experimental investigation of membrane distillation
Invented in the 1960s, membrane distillation is an emerging technology for water treatment attracting more attention since 1980s. There are four configurations of membrane distillations including air gap membrane distillation (AGMD), direct contact membrane distillation (DCMD), sweep gas membrane …
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Instigating buoyancy driven convection to improve membrane distillation performance
Membrane distillation is a thermally driven desalination process that is capable of treating complicated wastewaters with high concentrations of dissolved solids. However, temperature polarization and concentration polarization reduce its distillate production and impede its industrial adoption. …
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A solar‐driven membrane‐based water desalination/purification system
… challenge. Among all the desalination methods, Membrane Distillation (MD) is well known as a cost effective and profitable technology for treating saline water. However, higher energy consumption compared to other separation techniques has been reported as MD’s main drawback. That is why the …
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Chemistry of Nanoscale Solids and Organic Matter in Sustainable Water Management Systems
… (AOPs), managed aquifer recharge (MAR), and membrane distillation (MD), to (i) pursue in-depth and systematic investigations on solid-liquid interfacial interactions between nanoparticles and different water constituents (e.g., organic matter) in both water treatment and subsurface systems, …