Microwave technology in wastewater treatment problems and prospects
    Currently, microwave wastewater treatment technology mainly three ways : Microwave direct role in wastewater ; microwave role in wastewater and activated carbon ( or other substance ) ; microwave role in the adsorption material . These three methods have been widely used in the field of wastewater treatment , and in some wastewater treatment to achieve a good treatment effect , but there are also some problems.
    ( 1) Since the adsorbent material problems led purification longer. Such as organic bentonite as the biggest advantage is the adsorption capacity of the adsorbent , but subject to high temperature activation organic bentonite , organic pollutants reach adsorption equilibrium time is longer, resulting in wastewater treatment operation time is longer, time consuming and can be serious . In view of this , we can consider for bentonite improvements. Liji Wu and other microwave synthetic organic bentonite and its adsorption properties of organics , microwave synthesis of CPC bentonite compared with conventional wet hair synthetic organic bentonite have better adsorption properties, adsorption of Ponceau 4R processing efficiency improved significantly.
    ( 2 ) low efficiency of contaminant removal or removal of an ingredient in another ingredient is good but then reach the processing requirements , which is the wastewater treatment ongoing problem , stakeholders have been a lot of research in this area . If Sun Xianbin , etc. [ 27 ] special additives for wastewater treatment research . Secondly, can be studied using a variety of absorbent material simultaneously on wastewater or adding metal adsorbent material to improve its adsorption properties , which were also reported in the literature , such as Yang Liangyu and other renewable microwave iron - activated carbon treatment dye wastewater .
    ( 3 ) the lack of microwave technology itself . Microwave radiation technology in wastewater treatment applications are mostly static or called sequencing batch , ie microwave induced catalytic oxidation and adsorption can not be carried out , limiting the scope of application of the technology . The achievement of adsorption and microwave induced catalytic oxidation simultaneously , we can achieve the whole process of continuous, it is possible to broaden the microwave induced catalytic oxidation technology (M IOP) applications , speed up the technology in the field of sewage treatment pace of industrialization .
    Microwave technology with high efficiency, energy-saving , time-saving , easy operating conditions , no secondary pollution. Although there are unsatisfactory aspects, but as people of microwave technology continues to explore and develop , these problems will be solved . I believe the field of microwave technology in water treatment has great potential and advantages , will bring great industrial and social benefits