Optimization of a Mn-Doped Ti/SnO2-Sb Anode for Electrochemical Treatment of Dye Wastewater

Author(s):  
Yinxi Zhang ◽  
Shengyan Ge ◽  
Mengyao Shao ◽  
Wang Ke ◽  
Lu Tao ◽  
...  
2012 ◽  
Vol 441 ◽  
pp. 555-558
Author(s):  
Feng Tao Chen ◽  
San Chuan Yu ◽  
Xing Qiong Mu ◽  
Shi Shen Zhang

The Ti/SnO2-Sb2O3/PbO2 electrodes were prepared by thermal decomposition method and its application in the electrochemical degradation of a heteropolyaromatic dye, Methylene blue (MB), contained in simulated dye wastewater were investigated under mild conditions. The effects of pH, current density and electrolysis time on de-colorization efficiency were also studied. Chemical oxygen demand (COD) was selected as another parameter to evaluate the efficiency of this degradation method on treatment of MB wastewater. The results revealed that when initial pH was 6.0, current density was 50 mA·cm2, electrolysis time was 60 min, Na2SO4 as electrolyte and its concentration was 3.0 g·dm3, the de-colorization and COD removal efficiency can reach 89.9% and 71.7%, respectively.


2010 ◽  
Vol 7 (1) ◽  
pp. 167-172
Author(s):  
Saru Gupta ◽  
P. S. Verma ◽  
P. P. Bakre

The effectiveness of the use of slurry generated in stone cutting industry in the electrochemical treatment and reuse of the dye wastewater collected from various dyeing units of Sanganer area was studied using stainless steel electrodes and current density of 3mA/cm2. It was observed to have a high pH, TDS, TSS, BOD, COD and high concentration of heavy metals. A substantial reduction in TDS, BOD, COD and heavy metals in the treated wastewater as compared to the original dye wastewater sample was observed. The efficacy of the treatment was tested by observing the survival rate of Gambusia affinis in the treated wastewater.


2006 ◽  
Vol 131 (1-3) ◽  
pp. 90-97 ◽  
Author(s):  
Z SHEN ◽  
D WU ◽  
J YANG ◽  
T YUAN ◽  
W WANG ◽  
...  

2013 ◽  
Vol 24 (4) ◽  
pp. 452-462 ◽  
Author(s):  
Lutfiye Canan Pekel ◽  
Suna Ertunc ◽  
Zehra Zeybek ◽  
Mustafa Alpbaz

2019 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Fayza Nasr ◽  
Mervat Sadik ◽  
Saber El-Shafai

Author(s):  
Saravanathamizhan Ramanujam ◽  
Kaavya Muthumanickam

Removal of dye from wastewater has been investigated using the electrocoagulation method. Batch experiment has been conducted to remove the color from synthetically prepared acid red 87dye wastewater. Stainless steel and nickel foam sheets are used as cathode and anode, respectively. The effect of some operating parameters, such as current density, initial dye concentration and supporting electrolyte concentration, on color removal has been studied. It can be observed from the present investigations that the nickel foam electrode effectively removes color from the wastewater. Nickel hydroxyl species formed during the operation and also, nickel (II) hydroxide flocs formed in a subsequent stage, trap colloidal precipitates and make solid-liquid separation easier during the flotation stage. These stages of electrocoagulation must be optimized to design an economically feasible process.


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