To recover gold, this work used a novel direct contact membrane distillation (DCMD) reactor with a hybrid electrolytic process. Analytical results demonstrate that permeate flux increased as feed -2 -1 temperature and feed flow rate increased. Permeate flux increased from 2.8 to 17.6 kg m h when -2 -1 temperature increased from 30 to 70 °C, and increased from 9.2 to 19.9 kg m h when the feed fl...

Expolitation of coalbed methane (CBM) involves production of a massive amount saline water that needs to be properly managed for environmental protection. In this study, direct contact membrane distillation (DCMD) was utilized for treatment of CBM-produced water to remove saline components in the water. Simulated CBM waters containing varying concentrations of NaCl (1, 20, and 500 mM) and NaHCO...

Direct contact membrane distillation (DCMD) can desalinate saline waters using low-grade heat and is thus economically attractive when low-temperature thermal energy is readily available. Coupling DCMD with a heat exchanger (HX) can significantly enhance the energy efficiency of the process by recovering the latent heat accumulated in the permeate (distillate) stream. This study evaluates the m...

• VEDCMD has higher water flux than DCMD and PEDCMD. • Higher flux with vacuum applied may be partially due to lower membrane compaction. • Higher flux with vacuum applied may be partially due to lower membrane air pressure. • Pressure differences due to vacuum or pressure enhancement has a minimal effect on flux. a b s t r a c t a r t i c l e i n f o Low water flux in membrane distillation (MD...

In this work, Direct Contact Membrane Distillation (DCMD) was applied for the treatment of municipal wastewater collected from primary clarifier a plant (MWWTP). The water flux at 60℃ and 20℃ feed permeate side, respectively 51 kg/m2h in treating effluent. Meanwhile, electrical conductivity distillate good range 1.5 – 1.8 S/cm. Most representative parameters reuse (SS, nitrate, nitrite, phospha...

Porous hydrophobic ceramic membranes have been increasingly applied in advanced membrane-based separation processes such as Direct Contact Membrane Distillation (DCMD) due to their higher chemical and mechanical resistances. The development of novel enhanced with porosity is based on conventional techniques extrusion tape casting, unique processing dry–wet spinning vacuum filtration. relationsh...

Experimental investigations were carried out on removal of arsenic from contaminated groundwater by employing a new flat-sheet cross flow membrane module fitted with a hydrophobic polyvinylidenefluoride (PVDF) microfiltration membrane. The new design of the solar-driven membrane module in direct contact membrane distillation (DCMD) configuration successfully produced almost 100 per cent arsenic...