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The Ruhr: built on energy

 
RecShow '08

Middle East Recycling, Waste & Environmental
Management Exhibition & Congress



Successfully Concluded on Feb. 19th , 2008

 

Application for Participation (PDF)
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A RESEARCH ON USING pH, CONDUCTIVITY AND TEMPERATURE AT ELECTROCOAGULATION PROCESS CONTROL

M.Talha Gonullu, Ertan Arslankaya, Fatih Ilhan, Ugur Kurt, Omer Apaydin

Yıldız Technical University,
Environmental Engineering Department,
Besiktas 34349 Istanbul Turkey


Electrocoagulation process (EC) is recently preferred to chemical coagulation process because of its some advantages such as the more stable and less sludge deposition, no need chemical additive, the fast and high efficient treatment. Controlling of the process with some parameters is important to get optimum efficiency and minimum energy cost. In the control of the electrochemical process, solution parameters showing ionic ingredients such as pH, conductivity and temperature which changes depending on reaction time can be used.

The study was realized for a medium age (12 years) landfill leachate sample, and followed COD removal rates while EC process at different current densities (30 and 50mA/cm2), pH (3.0 and 8.1raw) and electrode types (Fe-Fe and Al-Al). Their variations were obtained as 8.1 to 9.3 for pH, 19.7 to 18.6 for conductivity, and 21.5 to 33.2 for temperature during initial and after 30 minutes reactions respectively. Accordingly it was seen that obtained a correlation in a good fitness between COD removal data and the parameters data. This phenomenon shows that the relationship can be used in the automation of the control of this type electrochemical process.



 

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