Elucidation of electrocoagulation mechanism in the removal of Blue SI dye from aqueous solution using Al-Al, Cu-Cu electrodes - A comparative study

Autor: Dhanasekaran Padmanabhan, Parameswari Kalivel, Jegathambal Palanichamy, Suresh Kumar Krishnan, S. Kavitha, Rajkumar Pluto Singh
Rok vydání: 2020
Předmět:
Health
Toxicology and Mutagenesis
medicine.medical_treatment
0211 other engineering and technologies
chemistry.chemical_element
Anthraquinones
02 engineering and technology
Electrolyte
Wastewater
010501 environmental sciences
01 natural sciences
Electrocoagulation
Water Purification
Disperse dye
chemistry.chemical_compound
X-ray photoelectron spectroscopy
Aluminium
medicine
Animals
Electrodes
0105 earth and related environmental sciences
021110 strategic
defence & security studies
Aqueous solution
Sewage
biology
Vigna
Public Health
Environmental and Occupational Health
Flocculation
Electrochemical Techniques
General Medicine
Hydrogen-Ion Concentration
biology.organism_classification
Pollution
chemistry
Electrode
Artemia
Artemia salina
Copper
Water Pollutants
Chemical
Aluminum
Nuclear chemistry
Zdroj: Ecotoxicology and Environmental Safety. 201:110858
ISSN: 0147-6513
DOI: 10.1016/j.ecoenv.2020.110858
Popis: This work presents the research on the treatment of an anthraquinone derivatives of disperse dye Blue SI from aqueous solution using aluminium for the optimization of operational parameters like pH, current density, addition of electrolyte, contact time for the color removal efficiency (CRE) and the results are compared with the performance of copper electrodes in electrocoagulation (EC). The parameters for maximum CRE was found with Al at current density 40 Am-2, time 10 min at pH 7, and for Cu at 60 Am-2 15 min, at pH 6 were optimized. The characterization of the treated water using HPLC, MS studies revealed intermediate compounds. From the XPS analysis of the sludge obtained, the mechanism of EC was deduced. Treated aqueous solution was studied for its phytotoxicity with Vigna radiata and ecotoxicity studies were conducted on Artemia salina to study the toxicity effect of the intermediatory products in the treated dye solution. Blue SI dye aqueous solution treated with aluminium electrodes shows no or lesser toxicity in plants as well as in ecotoxic study compared with copper electrodes.
Databáze: OpenAIRE
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