Decolourisation of Disperse Brown Dye Solution by Electrocoagulation Process with Al and Fe Electrodes

Yıl 2019, Cilt: 32 Sayı: 1, 104 - 114, 01.03.2019

Nihal Bektas Mesut Ozden Mesut Tekbas Yasemin Calıskan

Öz

Dyes used in the textile industry can easily
contaminate water and are becoming a world-wide pollution problem. The
efficiency of colour removal process from artificially prepared and actual
textile wastewater using electrocoagulation (EC) was investigated in this
study. A disperse dye was selected for the synthetic dye wastewater
experiments. Different operating conditions such as dye concentration, pH,
conductivity values and current density (CD) were investigated using
synthetically prepared dye solution in a batch EC reactor with
parallel-connected electrodes. EC optimum working conditions for
decolourisation rate of 50 mg/L synthetic dye solution were found as current
density of 30-37.5 mA/cm2, conductivity value of 1 mS/cm, pH value
of 7.5 at 25oC for both Al and Fe electrodes in this experimental
work. Additionally, a real textile wastewater was tested at similar
experimental conditions achieved with synthetic dye solution using a batch EC
reactor. Dye removal rate was achieved as %80 with real wastewater with energy
consumption of 9.16 kWh/m³.

Anahtar Kelimeler

Electrocoagulation, Dye Removal, Fe and Al Electrodes

Kaynakça

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