Abstract
A membrane filtration has been used for various applications such as drinking water treatment, pure water recycle, and waste water treatment. Although the membrane filtration can separate impurities from water precisely, it cannot handle with many impurities more than that assumed. It is necessary for expansion of membrane filtration to improve the operation flux and anti–fouling. We have been developing “Direct coagulation membrane filtration method” that is the combination technology of the coagulation and our membrane module having a high resistance for suspended solids. We had tested “Direct coagulation membrane filtration method” in the lab–scale and the pilot–scale. In the labscale test, we could observe an effect of the coagulation for anti–fouling and detachability of suspended solids. In the pilot-scale test, we could demonstrate that our membrane module can be operated stably with coagulation.
