Removal of phenol from steel wastewater by combined electrocoagulation with photo-Fenton

Phenol and its derivatives are available in various industries such as refineries, coking plants, steel mills, drugs, pesticides, paints, plastics, explosives and herbicides industries. This substance is carcinogenic and highly toxic to humans. The purpose of the study was to investigate the removal...

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Bibliographic Details
Published in:Water science and technology 2018-11, Vol.78 (5-6), p.1260-1267
Main Authors: Malakootian, Mohammad, Heidari, Mohammad Reza
Format: Article
Language:English
Subjects:
Aluminum
Antibiotics
Cadmium
Carcinogens
Catalytic oxidation
Cavitation
Chemical engineering
Chemical oxygen demand
Coking
Current density
Desalination
Efficiency
Effluents
Electrocoagulation
Environmental impact
Environmental management
Explosives
Herbicides
Hydrogen Peroxide
Industrial plants
Industrial Waste
Industry
Iron
Iron and steel industry
Iron and steel plants
Oil refineries
Organic chemicals
Organic chemistry
Pesticides
pH effects
Phenol
Phenols
Pollutant removal
Pollutants
Polymers
Reaction time
Refineries
Removal
Sludge
Steel
Steel industry
Waste Disposal, Fluid
Waste Water
Wastewater
Wastewater treatment
Water Pollutants, Chemical
Water Purification
Water treatment
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Summary:Phenol and its derivatives are available in various industries such as refineries, coking plants, steel mills, drugs, pesticides, paints, plastics, explosives and herbicides industries. This substance is carcinogenic and highly toxic to humans. The purpose of the study was to investigate the removal of phenol from wastewater of the steel industry using the electrocoagulation-photo-Fenton (EC-PF) process. Phenol and chemical oxygen demand (COD) removal efficiency were investigated using the parameters pH, Fe /H O , reaction time and current density. The highest removal efficiency rates of phenol and COD were 100 and 98%, respectively, for real wastewater under optimal conditions of pH = 4, current density = 1.5 mA/cm , Fe /H O = 1.5 and reaction time of 25 min. Combination of the two effective methods for the removal of phenol and COD, photocatalytic electrocoagulation photo-Fenton process is a suitable alternative for the removal of organic pollutants in industry wastewater because of the low consumption of chemicals, absence of sludge and other side products, and its high efficiency.
ISSN:0273-1223
1996-9732
DOI:10.2166/wst.2018.376