Magnetically responsive membrane obtained by grafting polyHEMA on nanofiltration membrane by atom transfer radical polymerization was demonstrated to break concentration polarization by micro mixing in presence of external magnetic field during the treatment of coal bed methane produced water. A systematic study was carried out to optimize the time and frequency of the magnetic field with respect to the increased energy costs for creating the field and decreased pumping costs due to increased flux. The effect of optimized experimental parameters on the performance of the modified membranes has been investigated in terms of permeability and salt rejection. A comparative evaluation was carried out to investigate the effect of cleaning and change in surface properties in terms of functionality as well as morphology due to the treatment of actual coal bed methane produced water using base membrane and magnetically activated membranes.

通过在煤床甲烷水的处理过程中，在外部磁场的存在下，通过微混合将聚HEMA接枝到纳滤膜上，从而在纳米过滤膜上获得了磁响应膜，从而打破了浓度极化。进行了系统的研究，以优化磁场的时间和频率，以增加产生磁场的能源成本和由于磁通量增加而降低的泵浦成本。就渗透性和脱盐性而言，已经研究了优化的实验参数对改性膜性能的影响。