:: Volume 8, Issue 1 (Vol.8, No.1,Spring 2020) ::
J Neyshabur Univ Med Sci 2020, 8(1): 88-102 Back to browse issues page
Decolorization of synthetic effluent containing Crystal Violet using Electrocoagulation process containing steel wool-platinum electrodes
Hooshyar Hossini Dr1 , Hiwa Hossaini Dr1 , Shohre Heshmati Eng1 , Hadis Fatahi Eng1 , Roya Jalilian Eng1 , Abolfazl Naeimabadi Dr2 , S omid Rastegar Dr * 3
1- kums
2- nums
3- ku , so.rastegar@gmail.com
Abstract:   (690 Views)
Background and objectives: Electrocoagulation process is one of the most effective treatment methods at among of the oxidation processes due to its unique properties such as simple design and extensive application for treating of industrial wastewater. To promote this process, different ways have been proposed. In this study, the electrocoagulation process was incremented by the placement of steel wool and platinum electrodes and its potential was evaluated by decolorization of crystal violet (CV) from aqueous solution.
 
Materials and Methods: the colored solution was prepared from CV powder by its dissolution in distillated water. Spectrophotometric method (600 nm) was used to determine the color content. Electrocoagulation experiments were conducted in a 1000 mL backer and at a batch method. To evaluate the kinetic studies, first and second order models were used. Toxicity tests were also performed using coliform bacteria to ensure the reduction of crystal violet toxicity.
Results: The results showed that the process could remove the colored solution with a high percentage rate about 99.63% under optimal conditions (pH 9, time of 60 minutes, applied current 0.4 amperes and color concentration about 200 mg/L). The microbial toxicity test also indicated that the treated wastewater in this method can be reused or discharged in the environment.
Conclusion: Based on the results, the electrocoagulation with steel wool-platinum electrode arrangement can be effectively used in the treatment of color containing industrial wastewater.
Keywords: Crystal violet, electrocoagulation, stainless steel-platinum electrodes, toxicity test
Full-Text [PDF 1305 kb]   (151 Downloads)    
Type of Study: Orginal Article | Subject: Environmental Health
Received: 2019/06/18 | Revised: 2020/05/10 | Accepted: 2020/01/4 | Published: 2020/05/10 | ePublished: 2020/05/10


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Volume 8, Issue 1 (Vol.8, No.1,Spring 2020) Back to browse issues page