Journal
BIORESOURCE TECHNOLOGY
Volume 101, Issue 20, Pages 7761-7766Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.05.027
Keywords
Wastewater treatment; Continuous system; Electrocoagulation; Activated sludge
Funding
- CONACYT
- Universidad Autonoma del Estado de Mexico [2794/2009]
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A continuous system electrocoagulation - active sludge was designed and built for the treatment of industrial wastewater. The system included an electrochemical reactor with aluminum electrodes, a clarifier and a biological reactor. The electrochemical reactor was tested under different flowrates (50, 100 and 200 mL/min). In the biological reactor, the performance of different cultures of active sludge was assessed: coliform bacterial, ciliate and flagellate protozoa and aquatic fungus. Overall treatment efficiencies of color, turbidity and COD removal were 94%, 92% and 80%, respectively, under optimal conditions of 50 mL/min flowrate and using ciliate and flagellate protozoa. It was concluded that the system was efficient for the treatment of industrial wastewater. (C) 2010 Elsevier Ltd. All rights reserved.
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