TiO-immobilized porous geopolymer composite membrane for removal of antibiotics in hospital wastewater.

This experimental research proposes an environment-friendly and low-cost porous geopolymer composite membrane (PGCM) to treat antibiotics in hospital wastewater. The proposed PGCM consisted of two layers: a porous support layer and a dense coating layer. The dense coating layer was synthesized by incorporating variable TiO content (0, 2, 6, and 10 wt%) into the geopolymer matrix.

Reduction of antibiotic-resistant-E. coli, -K. pneumoniae, -A. baumannii in aged-sludge of membrane bioreactor treating hospital wastewater.

A pilot-scale of membrane bioreactor (MBR) had functioned without sludge withdrawal for six months, proposed to minimize antibiotic-resistant bacteria (ARB) dissemination from hospital wastewater. With this proposal, an aging sludge in MBR has concerned as preserved-severe multidrug-resistant microorganisms. Thus, this study aims to investigate resistance alteration of ARB in the aging-sludge compared to that in the wastewater.