ZHANG Hongwei, LEI Ming, LI Ying, et al. Extraction of extracellular polymeric substances from activated sludge in membrane bioreactor[J]. CIESC Journal, 2008, (6): 1531-1534.
ZHANG Hongwei, LEI Ming, LI Ying, et al. Extraction of extracellular polymeric substances from activated sludge in membrane bioreactor[J]. CIESC Journal, 2008, (6): 1531-1534.DOI:
The optimum conditions and effectiveness of extraction of extracellular polymeric substances (EPS) from activated sludge in a membrane bioreactor(MBR) were studied under such conditions
thermal
acid
alkaline treatment methods
and it was concluded that both thermal treatment (80℃,45 min) and EDTA bi-sodium treatment were effective.The sludge cell was damaged seriously by NaOH treatment (1 mol·L-1
2 h)
but when formaldehyde was added
the nucleic acid concentration was reduced by 21.5%