Stimuli-responsive membrane and its research status in membrane distillation
Membrane distillation(MD)had proven its significant advantages in industrial wastewater treatment and reclamation for the high separation efficiency,low fouling potential,and convenient operation.However,membrane fouling and wetting issues remain unresolved,which limit the commercial application of MD.Stimuli-responsive membranes can respond to specific environmental stimulus and change their structure,characteristics,and performance correspondly,which has great potential in water and wastewater treatment based on membrane technologies.In this work,the responding mechanisms of the responsive membranes to stimuli in terms of pH,temperature,photo,electric field,and magnetic field and their research advancement in water and wastewater treatment were systematically reviewed,as well as their application status in MD.In view of the responding mechanism and the characteristic of MD process,the potentials of stimuli-responsive membranes in addressing membrane fouling and wetting issues,low permeability,and low long-term stability in MD were discussed.At last,a perspective and the challenges of stimuli-responsive membranes in MD application were analyzed.It was believed that the development of the membrane with the special wettability will be a new direction for MD development and application,the development of highly effective,stable,simple and cost-effective stimuli-responsive membrane and the understanding of the mechanism in MD had a potential in promoting the commercial application of MD.
国家科技期刊平台
NSTL
万方数据
