Microbial adaptation to biodegrade toxic organic micro-pollutants in membrane bioreactor using different sludge sources

作者：Boonnorat Jarungwit; Chiemchaisri Chart^*; Chiemchaisri Wilai; Yamamoto Kazuo

来源：Bioresource Technology, 2014, 165: 50-59.

DOI：10.1016/j.biortech.2014.04.024

• Bacterial community
• Membrane bioreactor
• Microbial adaptation
• Micro-pollutants
• PCR-DGGE

Biodegradation of toxic organic micro-pollutants in municipal solid waste (MSW) leachate by membrane bioreactor (MBR) was investigated. The MBR systems were seeded with different sludge sources, one was from a pilot-scale MBR system treating MSW leachate and the other was from an activated sludge sewage treatment plant. The biodegradation of BPA, 2,6-DTBP, BHT, DEP, DBP and DEHP, DCP and BBzP, by sludge from both reactors were found improved with time. However, enhanced biodegradation of micro-pollutants was observed in MBR operated under long sludge age condition. Bacterial population analyses determined by PCR-DGGE revealed the development of phenol and phthalate degrading bacteria consortium in MBR sludge during its operation.

• 出版日期2014-8