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Electrocoagulation using a rotated anode: a novel reactor design for textile wastewater treatment

Naje, A. S. and Chelliapan, S. and Zakaria, Z. and Abbas, S. A. (2016) Electrocoagulation using a rotated anode: a novel reactor design for textile wastewater treatment. Journal of Environmental Management, 176 . pp. 34-44. ISSN 0301-4797

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This paper investigates the optimum operational conditions of a novel rotated bed electrocoagulation (EC) reactor for the treatment of textile wastewater. The effect of various operational parameters such as rotational speed, current density (CD), operational time (RT), pH, temperature, and inter-electrode distance (IED) on the pollutant removal efficiency were examined. In addition, the consumption of aluminum (Al) and electrical energy, as well as operating costs at optimum conditions were also calculated. The results indicated that the optimum conditions for the treatment of textile wastewater were achieved at CD = 4 mA/cm2, RT = 10 min, rotational speed = 150 rpm, pH = 4.57, temperature = 25 \xB0C, and IED = 1 cm. The electrode consumption, energy consumption, and operating costs were 0.038 kg/m3, 4.66 kWh/m3 and 0.44 US/m3, respectively. The removal efficiencies of chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solid (TSS), turbidity and color were 97.10, 95.55, 98, 96 and 98.50, respectively, at the first 10 min of reaction time, while the phenol compound of the wastewater was almost entirely removed (99.99). The experimental results confirm that the new reactor design with rotated anode impellers and cathode rings provided high treatment efficiency at a reduced reaction time and with lower energy consumption. \xA9 2016 Elsevier Ltd.

Item Type:Article
Uncontrolled Keywords:aluminum, electrolyte, phenol derivative, aluminum, industrial waste, phenol, waste water, biochemical oxygen demand, chemical oxygen demand, coagulation, electrode, electrodynamics, experimental study, pH, pollutant removal, textile industry, wastewater, water treatment, Article, biochemical oxygen demand, chemical oxygen demand, color, current density, electrocoagulation, electrode, energy consumption, pH, reaction time, reactor design, suspended particulate matter, temperature, textile, turbidity, velocity, waste water, waste water management, cost benefit analysis, electricity, electrocoagulation, equipment design, industrial waste, isolation and purification, procedures, sewage, textile industry, waste water, Aluminum, Biological Oxygen Demand Analysis, Cost-Benefit Analysis, Electricity, Electrocoagulation, Electrodes, Equipment Design, Hydrogen-Ion Concentration, Industrial Waste, Phenol, Temperature, Textile Industry, Waste Disposal, Fluid, Waste Water
Subjects:T Technology > T Technology (General)
Divisions:Razak School of Engineering and Advanced Technology
ID Code:72355
Deposited By: Narimah Nawil
Deposited On:20 Nov 2017 08:23
Last Modified:20 Nov 2017 08:23

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