Membrane Bioreactor in China: A Critical Review

Abstract

The application of membrane bioreactor (MBR) for wastewater treatment and reuse has received ample scientific and industrial considerations due to its potential for improved effluent quality, strong anti-shock loading capacity, less residual sludge and small footprint. Particularly in 2006, since the first operation of a large-scale MBR in China, it’s acceptability for wastewater reclamation had nearly tripled in recent years. This rigorous review work focus on the overall operational chain for the MBR system with attention placed on the Chinese MBR market, fouling characteristics, energy costs, and application trend in China. Recent developments in membrane materials, compositions, and properties are summarized. Roles of cake-layer formation, extracellular polymeric substances (EPS) and hydrodynamic effect on membrane fouling are critically assessed. Lastly, future perspective regarding long term development of MBR applications in China and potential areas of fouling mitigation are identified.