Yusuf Yavuz

BR29 Dye Removal from Model Solution by Aluminum Electrocoagulation

It is unknown how much synthetic organic dyes produced in the world, although financial reports estimate their continuous increase in the worldwide market up to about US

Effect of Polyelectrolytes on The Electrocoagulation of Organized Industrial District Raw Wastewater using Aluminum Electrodes

11 billion in 2008 with a production of dyestuffs over 7 × 105 tons [1]. These dyes are used in industrial companies, such as dyestuffs, textile, paper and plastics, in order to color their products and also they consume substantial volumes of water and consequently they generate a considerable amount of colored wastewater [2]. Electrocoagulation is an efficient and cost-effective method for removing organic and inorganic pollutants which has some advantages such as [3-4]: (i) more effective and rapid organic matter separation than in coagulation, (ii) pH control is not necessary, except for extreme values, (iii) the amount of chemicals required is small, (iv) the amount of sludge produced is smaller when compared with coagulation.In this study electrocoagulation of Basic Red 29 (BR29) dye using aluminum electrodes in parallel plate mode was fulfilled. With this aim, parametric studies were held to investigate the effects of current density, initial pH, supporting electrolyte concentration and initial dye concentration on dye removal. At the best experimental conditions obtained, chemical oxygen demand (COD)was examined and time coarse variation of model wastewater were also be investigated. During the studies, samples were withdrawn from the reactor at predetermined time intervals to analyze the BR29 concentrations followed by centrifugation at 7000 rpm.

Electrochemical oxidation of phenol in a parallel plate reactor using ruthenium mixed metal oxide electrode.

Electrochemical treatment of mixed raw industrial wastewater from the inlet of organized industrial district wastewater treatment plant was investigated using sacrificial aluminum electrodes in this study. A pole changer was used between the power supply and the electrochemical reactor to help use of all electrodes as anode. Studies on the parameters such as current density, supporting electrolyte concentration and initial pH, which have significant effects on COD removal and hence the energy consumption, had been performed previously. Coagulant aids, poly aluminum chloride and Kerafloc, were used in different concentrations to observe their effects on COD removal efficiency and the energy consumption. Three different concentrations for both coagulant aids were tested: 10, 20, and 30 mg/L. According to the results, the concentration of both coagulant aids were 30 mg/L to achieve highest removal efficiencies, lowest energy consumptions and sludge productions.