Vacuum Membrane Distillation Equipment

On the other hand membrane.

Vacuum membrane distillation equipment.

Sulfuric acid waste is one of the common industrial waste waters all over the world the direct. Vacuum membrane distillation membrane contactors. Water vapour to pass through the membrane s pores. Microporous hydrophobic membranes are used to separate the aqueous stream from a gas phase kept under vacuum.

Integrated systems involving. Vacuum membrane distillation vmd. Membrane distillation md is widely employed in separation processes such as. Hollow fiber vmd systems however have not yet been optimized for energy recovery.

The tank may include one or more membrane pouches that are submerged in the circulating brine or placed above the water level of. Fundamentals membrane materials and key operations. Exergy analysis of a vacuum membrane distillation system integrated with mechanical vapor recompression for sulfuric acid waste treatment 1. Vmd is an evaporative process that physically.

In one example brine is circulated in a tank. Flat sheet vmd systems recover the brine energy by employing a cascade system to improve the shc. Although vacuum membrane distillation vmd has a high distillate flux its potential is limited by its high specific heat consumption shc. In this case condensation takes place outside of the membrane module.

Abstract vacuum membrane distillation is a membrane based separation process considered here to remove volatile organic compounds from aqueous streams. Membrane distillation md is a thermally driven separation process in which separation is driven by phase change a hydrophobic membrane presents a barrier for the liquid phase allowing the vapour phase e g. Embodiments provide methods and structures for purification or volume reduction of a brine by an advanced vacuum distillation process avmd to achieve higher flux by passage of vapors through an avmd distillation unit. Modelling of pore wetting in membrane distillation compared with pervaporation.

1 2 future development membrane distillation is an alternative to the traditional evaporative distillation systems used for desalination or water purification processes. This md con uration is termed vacuum membrane distillation vmd. Desalination concentration in food industries acid manufacturing removing organic and heavy metals treating radioactive waste. The flow diagram of the vmd system.

Different configurations for example gas gap membrane distillation or vacuum membrane distillation will be considered in the next sections.