Title: Acrylic wastewater treatment using SBR technology with aerobic granules

Authors: Shanquan Wang, Sheng Zhang, Wei Zhou, Jianrong Zhu

Addresses: School of Environment, Beijing Normal University, Beijing 100875, China. ' School of Environment, Beijing Normal University, Beijing 100875, China. ' School of Environment, Beijing Normal University, Beijing 100875, China. ' School of Environment, Beijing Normal University, Beijing 100875, China

Abstract: The acrylic or acrylonitrile wastewater treatment were investigated in experimental SBR systems with aerobic granules. The results showed that the diluted acrylic wastewater 400-800 mgL−1 could finally reach a COD removal 71.5-77.5% and a net COD removal 50.5–59.6%. The growth of aerobic granules in reactor was quite slow and retained MLSS 4.6-6.2 gL−1. The pretreatment by internal electrolysis was an effective way to remove cyanides and enhance the biodegradability of the wastewater. This combined SBR system achieved an approximately 70% COD removal. The post treatment by ozonation process was necessary to degrade the wastewater less than COD 130-143 mgL−1.

Keywords: acrylic wastewater; aerobic granules; SBR; sequencing batch reactors; internal electrolysis; wastewater treatment; cyanides; biodegradability.

DOI: 10.1504/IJEWM.2011.037368

International Journal of Environment and Waste Management, 2011 Vol.7 No.1/2, pp.80 - 89

Available online: 05 Dec 2010 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article