Synthesis and Characterization of g-CN/AgPO/TiO/PVDF Membrane with Remarkable Self-Cleaning Properties for Rhodamine B Removal.

g-CN/AgPO/TiO nanocomposite materials were loaded onto a polyvinylidene fluoride (PVDF) membrane using a phase inversion method to obtain a photocatalytic flat membrane for dye removal. The morphology, structure, and photocatalytic activity of the g-CN/AgPO/TiO nanoparticles and composite membrane were evaluated. The g-CN/AgPO/TiO/PVDF membrane exhibited superior morphology, hydrophilic properties, and antifouling performance compared with the raw PVDF membrane.

Settleability and dewaterability of sewage sludge with modified diatomite.

In this study, cationic polyacrylamide (CPAM)-modified diatomite and cetyl trimethyl ammonium bromide (CTAB)-modified diatomite were synthesized and used as conditioners for sewage sludge dewatering. The effects of these two types of modified diatomite on the dewaterability and settling performance of the activated sludge were studied. The mechanisms of the two modified diatomite types in the activated sludge system were elucidated.