Monday, November 21, 2011

Mar Tech Systems Water Blog

Watermark

Insights about industrial and commercial water utilities from an experienced insider.

Loraine A. Huchler, P. E., CMC is a chemical engineer with an insider's view of manufacturing and commercial operations. Her work as a consultant has provided insight into the challenges to remain competitive in industrial operations, especially refining and petrochemical. She is an acknowledged expert in industrial and commercial water quality with numerous publications, including a book, "Operating Practices in Industrial Water Management, Influent Water Systems," the first of a four book series.

Tuesday, November 15, 2011

Electrocoagulation As a Wastewater Treatment


From the The Third Annual Australian Environmental Engineering Research Event. 23-26 November Castlemaine, Victoria 1999


ELECTROCOAGULATION AS A WASTEWATER TREATMENT

Peter Holt, Geoffrey Barton and Cynthia Mitchell Department of Chemical Engineering, The University of Sydney, New South Wales, 2006.

ABSTRACT

Coagulation and flocculation are traditional methods for the treatment of polluted water. Electrocoagulation presents a robust novel and innovative alternative in which a sacrificial metal anode doses water electrochemically. This has the major advantage of providing active cations required for coagulation, without increasing the salinity of the water.

Electrocoagulation is a complex process with a multitude of mechanisms operating synergistically to remove pollutants from the water. A wide variety of opinions exist in the literature for key mechanisms and reactor configurations. A lack of a systematic approach has resulted in a myriad of designs for electrocoagulation reactors without due consideration of the complexity of the system. A systematic, holistic approach is required to understand electrocoagulation and its controlling parameters. This will enable a priori prediction of the treatment of various pollutant types.

KEYWORDS

Electrocoagulation, electroflotation, wastewater treatment, sacrificial electrodes.