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|Title:||Treatment of metalworking fluids using a submerged anaerobic membrane bioreactor (SAMBR)||Authors:||Teli, Aronne
Stuckey, David C.
Metal working fluids (MWFs)
|Issue Date:||1-Mar-2015||Publisher:||John Wiley and Sons Ltd||Source:||Journal of Chemical Technology and Biotechnology, 2015, Volume 90, Issue 3, Pages 507-513||Abstract:||BACKGROUND: The role of biodegradation and physical-chemical mechanisms involved in the treatment of metal working fluids (MWFs) using a submerged anaerobic membrane bioreactor (SAMBR) was assessed in this research. Two SAMBRs were employed in series, with the second SAMBR being fed the permeate from the first bioreactor. RESULTS: Results showed a low biodegradability of the MWF both in batch tests (bioconversion efficiency≤3%), and operating the bioreactors continuously (bioconversion efficiency ∼0%). Among the physical-chemical removal mechanisms identified, it was found that bio-adhesion was the most important in MWF removal (removal rate of 96.0±1.64%), whereas membrane rejection was not significant (removal rate of 0.2±0.18%). However, it is expected that membrane separation will play an important role in removal after bio-adhesion has been saturated. CONCLUSION: The inhibition of the hydrolytic/heteroacetogenic biomass was the most problematic aspect in anaerobic digestion, resulting in the need for bioaugmentation of specific microorganisms to degrade MWFs. In the case of non-adaptation during long-term operation, the bio-adhesive propensity of MWFs could be used as a potential method for removing spent MWFs from wastewater streams.||URI:||http://ktisis.cut.ac.cy/handle/10488/9532||ISSN:||02682575||Rights:||© 2014 Society of Chemical Industry.|
|Appears in Collections:||Άρθρα/Articles|
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