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Issue
Korean Journal of Chemical Engineering,
Vol.34, No.4, 1044-1050, 2017
Experimental study on electrocoagulation of textile wastewater by continuous horizontal flow through aluminum baffles
Ubale MA, Salkar VD
We investigated the feasibility of applying a continuous textile wastewater (TWW) treatment, which was accomplished by using electrocoagulation (EC) unit with zigzag horizontal flow across a series of mono-polar aluminum plate baffles. The effects of operating parameters such as current density (20-80 A/m2) and detention time (5-40 min) on turbidity, color, chemical oxygen demand (COD), total suspended solids (TSS) and total dissolved solids (TDS) removal were studied. The optimum conditions were determined as 60 A/m2 and 20min by monitoring zeta potential (ζ) of effluent. At the optimum conditions, removal efficiencies for turbidity (97.63%), color (87.87%), COD (93.3%), TSS (94.02%), and TDS (52.13%) were observed. Further, addition of 4mg/L of NaCl dose in the TWW modified conductivity suitably, thereby reducing electrical energy consumption per cubic meter of waste water and specific electrical energy consumption (SEEC) from 13.33 to 2.67kWh/m3, and 23.84 to 4.77kWh/kg Al, respectively. Comparing the EC with conventional coagulation process, EC showed better pollutant removal efficiency.
Keywords: Electrocoagulation; Continuous Flow Unit; Textile Wastewater; Aluminum Baffles; Zeta Potential
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[Cited By]
  1. Aygun A, Nas B, Sevimli MF, Korean Journal of Chemical Engineering, 36(9), 1441, 2019
  2. Goes MCDC, Garcez MPR, Siqueira ARF, Farias TP, Santana CGD, Neto JDJGDC, Bezerra CWB, Korean Journal of Chemical Engineering, 38(8), 1631, 2021
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