Membrane distillation for wastewater reverse osmosis concentrate treatment with water reuse potential
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Membrane Distillation
Osmosis
Distilled water
Portable water purification
PTA wastewater was disposed by reverse osmosis membrane. And the influence of operation conditions such as recovery rate,pressure,and temperature on the performance of reverse osmosis was discussed. The best operation conditions were obtained. Meanwhile,concentration outflow of reverse osmosis were recycled to the feed tank,and the permeate flow could still meet the process requirement. Furthermore,the recovery of membrane flux was investigated with physical washing and chemical washing. The results showed that the effect of the latter was better. Among different chemical cleaning agents,NaOH solution has best effect on the recovery of reverse osmosis flux.
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This paper focuses on finding out the reason that water affects vinos' quality in vintage technique, introducing water-treating technique-Reverse Osmosis, bringing out the concept that water, used in vintage technique, can be treated by Reverse Osmosis membrane and expatiating the usage of Reverse Osmosis membrane.
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This paper summarized the work principles and classifications of reverse osmosis membranes.The applications of reverse osmosis membranes in the treatment and reuse of municipal wastewater,landfill leachate,wastewater with heavy metal and oily wastewater were primarily introduced,and the current problems and developing trends were analyzed.
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Osmosis
Wastewater Reuse
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The reverse osmosis pretreatment is to lower water-entering's contaminating,scaling,loss to reverse osmosis membrane in a minimum,and the better effect of pretreatment process,the lighter pollution of the membrane system,the lower investment and runing costs of membrane system.So it is guaranteed that reverse osmosis device has fine effect on running and treatment.Through the effluent quality index data analysis on the various levels pretreatment of mine water on Fu Xin City mining area,this pretreatment system has fine effect,which can reach the water-entering standard of reverse osmosis membrane.The experiment data of the pretreatment system has the certain reference and use value to the other reverse osmosis membrane pretreatments.
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It introduces the theory of reverse osmosis membrane and apply to wastewater treatment. It introduces how to gather information for design , how to select reverse osmosis membrane, and how to design osmosis device. It also introduces the method of pretreatment before wastwater is put into reverse osmosis membrane device , and the final treatment .
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Surface water was used as raw water for the reverse osmosis system in an chemical plant.Since biological pollutants exist in surface water,serious blockage has ocured in the reverse osmosis system as a result.According to the operating problems resulted from the surface water quality,how to solve the problems such as improving pre-treatment system,eliminating defect of hidden devices,strengthening online cleaning and adding proper chemical agents synchronously was introduced.Finally,the reverse osmosis system can work normally.
Reverse osmosis plant
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