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Essay On Electrocoagulation

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In view of the increasingly stringent environmental policy adopted by industrialized countries, a rising care has been directed to water pollution problem. Significant amounts of water are consumed during processing in many industries using dyes as textile, paper, plastic, leather, food and cosmetics industries. 1-15% of the dye is estimated to be lost in dyeing and finishing processes and are released into waste waters. About 10,000 dyes and pigments are used in the textile industry, most of themare toxic substances to humans and aquatic life; 50,000 tones of dyes are estimated to be discharged from dyeing and coloration industries
One of the main sources of environmental contamination is the dye pollutants from these industries, the disposal of these colored waste waters is a threat to the …show more content…

From the perspective of reasonable advancement, electrocoagulation is ecologically friendly in light of the fact it does not create additional toxins in the water, for example, sulfate or chloride particles [4]. Also, the energy source for the process can be a solar photovoltaic panel that converts solar energy into direct electric current [16]. Furthermore, it is also possible to reduce the energy consumption of the electrocoagulation system by harvesting the hydrogen produced during the treatment [17].
Electrocoagulation (EC) involves many chemical and physical steps that use sacrificial electrodes to supply ions into the wastewater. In an EC process the coagulant is produced ‘in situ’ and it involves three successive stages: (i) formation of coagulants by electrolytic oxidation of the electrode, (ii) destabilization of the contaminants, particulate suspension, and breaking of emulsions and (iii) aggregation of the destabilized phases to form flocs [18].
The most widely used electrode materials in EC process are aluminium and

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