Purification of micro-polluted raw water by a pilot-scale bio-diatomite dynamic membrane reactor

Abstract

In this study, we developed a bio-diatomite dynamic membrane reactor (BDDMR) as a new water treatment technology. The effectiveness of this new system was evaluated by investigating the removal effect of pollutants, and the three-dimensional excitation and emission matrix fluorescence spectroscopy (3D-EEM) was employed to characterize the chemical nature of dissolved organic matter (DOM) in influent, and effluent of BDDMR at pilot-scale in continuous-flow mode at a hydraulic retention time of 8 h. Experimental results indicated that the system was better to remove pollutant, and two peaks could be observed in all DOM in various origins, showing that the aromatic protein-like in every substances, could be removed effectively. The results also illustrated that the system could be able to remove the pollutants such as protein-like substances and soluble microbial byproduct-like material.