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1479298 
Journal Article 
Pretreatment of wastewater from acrylonitrile-butadiene-styrene (ABS) resin manufacturing by microelectrolysis 
Lai, Bo; Zhou, Y; Qin, H; Wu, C; Pang, C; Lian, Yu; Xu, J 
2012 
Yes 
Chemical Engineering Journal
ISSN: 1385-8947 
ELSEVIER SCIENCE SA 
LAUSANNE 
179 
1-7 
English 
WOS:000300202500001 
Pretreatment of acrylonitrile-butadiene-styrene (ABS) resin
wastewater by microelectrolysis system was investigated to improve the biodegradability of the
toxic aromatic compounds and organic nitriles. Two experiment systems, (a) control experiment of
Fe and carbon and (b) microelectrolysis reactor, were set up to confirm the importance of
macroscopic galvanic cells. In addition, the effect of the influent pH and Fe/C ratio on the
efficiency of the microelectrolysis reactor was studied. The experimental results showed that the
maximum COD removal efficiency was in the range of 50-55%, and the BOD5/COD ratio was enhanced
from 0.32 to 0.71 under the best condition of the influent pH 4 and Fe/C ration of 1:1 (qv). The
microelectrolysis reactor could not remove the nitrogen in ABS resin wastewater, but it could
transform the organic nitriles into NH3-N, amine and acylamide, and the NH3-N transformation
efficiency reached 50% when the influent pH was 4. The decomposition and transformation of the
aromatic compounds and organic nitriles in ABS resin wastewater was monitored by UV-vis, fourier
transform infrared spectroscopy (FTIR) and gas chromatography mass spectrometry (GC-MS). This
study showed that an almost total decomposition or transformation of the toxic organic pollutants
and an increasing biodegradability of the pretreated ABS resin wastewater could be achieved by
microelectrolysis reactor. (C) 2011 Elsevier B.V. All rights reserved. 
Microeletrolysis; ABS resin wastewater; Aromatic compounds; Organic nitriles