| abstract |
In the RO membrane treatment system equipped with an energy recovery device that recovers energy from the concentrated water of the RO membrane device, in order to suppress not only the biofouling of the RO membrane device but also the biofouling of the energy recovery device, the energy efficiency of the entire system can be improved. And stable operation, so that the residual halogen concentration of the concentrated water introduced into the RO membrane device in the energy recovery device is 0.1 to 10,000 mg/L in terms of total chlorine concentration, adding combined chlorine and stabilized bromine to RO feed water At least one slime control agent in . |