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   Evaluation of Toxicity of Basic Violet-16 Dye During Electrochemical Process Purification From Aqueous Solutions: Bioassay Using Microorganisms  
   
DOR 20.1001.2.0021079099.1400.8.1.104.4
نویسنده Dargahi Abdollah
منبع كنگره بين المللي رنگ و پوشش - 1400 - دوره : 8 - کنگره بین المللی رنگ و پوشش - کد همایش: 00210-79099 - صفحه:1 -1
چکیده    Dyes are one of the most widespread environmental pollutants in the textile industry effluent which if discharged into the aquatic ecosystem, can cause toxic and carcinogenic effects on humans and the environment. the aim of this study was to investigate the toxicity changes of violet-16 basic dye during electrochemical treatment of aqueous solutions. in this experimental-laboratory study, stock solution containing violet-16 dye with two iron electrodes was placed in a 250 ml reactor. after the experiments, the effect of ph (3-11), current density (1-5 ma/cm2), initial concentration of dye (10-80 mg/l) and electrolysis time (5-60 min) was investigated and the optimal conditions to degradation of violet-16 dye was obtained. toxicity changes were investigated with culture and growth rate of escherichia coli (gram-negative) and staphylococcus aureus (gram-positive) in inlet solution and effluent solution of the electrochemical process under optimal conditions using the control solution (blank) and finally the percentage of growth inhibition for each bacterium were calculated. the results showed that the violet-16 removal efficiency via electrochemical process under optimal conditions including ph = 4, current density of 5 ma/cm2, initial concentration of dye =10 mg/l and electrolysis time of 60 minutes was 91.8% and the rate of reduction of effluent toxicity for escherichia coli and staphylococcus aureus was 81.3% and 73.6%, respectively. the present study showed that the electrochemical process as a useful technique has high efficiency in removing violet-16 dye and reducing its toxicity from aqueous solutions.
کلیدواژه Toxicity ,Violet-16 Dye ,Electrochemical Process ,Bioassay ,Microorganism
آدرس Ardabil University Of Medical Sciences, Iran, Ardabil University Of Medical Sciences, Social Determinants Of Health Research Center, Iran, Ardabil University Of Medical Sciences, Iran, Ardabil University Of Medical Sciences, Iran
 
   Evaluation of toxicity of Basic Violet-16 dye during electrochemical process purification from aqueous solutions: Bioassay using microorganisms  
   
Authors Dargahi Abdollah
Abstract    Dyes are one of the most widespread environmental pollutants in the textile industry effluent which if discharged into the aquatic ecosystem, can cause toxic and carcinogenic effects on humans and the environment. The aim of this study was to investigate the toxicity changes of violet-16 Basic dye during electrochemical treatment of aqueous solutions. In this experimental-laboratory study, stock solution containing violet-16 dye with two iron electrodes was placed in a 250 ml reactor. After the experiments, the effect of pH (3-11), current density (1-5 mA/cm2), initial concentration of dye (10-80 mg/L) and electrolysis time (5-60 min) was investigated and the optimal conditions to degradation of violet-16 dye was obtained. Toxicity changes were investigated with culture and growth rate of Escherichia coli (gram-negative) and Staphylococcus aureus (gram-positive) in inlet solution and effluent solution of the electrochemical process under optimal conditions using the control solution (Blank) and finally the percentage of growth inhibition for each bacterium were calculated. The results showed that the violet-16 removal efficiency via electrochemical process under optimal conditions including pH = 4, current density of 5 mA/cm2, initial concentration of dye =10 mg/L and electrolysis time of 60 minutes was 91.8% and the rate of reduction of effluent toxicity for Escherichia coli and Staphylococcus aureus was 81.3% and 73.6%, respectively. The present study showed that the electrochemical process as a useful technique has high efficiency in removing violet-16 dye and reducing its toxicity from aqueous solutions.
Keywords Toxicity ,Violet-16 dye ,Electrochemical process ,Bioassay ,Microorganism
 
 

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