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Removal Cu and Ni in an Electroplating Industry Effluent by Eichhornia crassipes against Nutrient Dosage
Source publication
This study was focused on removal of copper (Cu) and nickel (Ni) from electroplating industry effluent using Eichhornia crassipes. The experimental investigations have been carried out by using Eichhorniacrassipes for conducted the absorption study with various nutrient dosage (10, 20, 30, 40, 50, 60 and 70 g), dilution ratio (2, 4, 6, 8, 10, 12 an...
Citations
... 30,31 When transformed into a membrane, the pore size will be 19-58 nm, which is large enough to allow ions to exchange across it. 30,32,33 Furthermore, the experimental data were designed according to a Box-Behnken experimental design in order to study systematically the effect of operational parameters namely electrolyte support, anode type, anolyte solution, and voltage, on the nickel removal efficiency, the current efficiency, and the specific energy. 34 3 , Na 2 SO 4 , and NaNO 3 were used as the anolyte solutions. ...
Nickel ions are highly present in wastewater from the electroplating industry because the galvanizing process only uses 30-40% of nickel. The objectives of this study are to investigate the effect of electrolyte support, voltage, anolyte solution, and anode type on removal efficiency, current efficiency, and specific energy on water hyacinth-separated double chamber electrodeposition cell (DCEC) and to simulate wastewater treatment based on the optimized variables. We optimized the reaction conditions using artificial wastewater containing 2200 mg/L of nickel. We then simulated the electrodeposition using the optimized conditions and obtained the optimal operating conditions: 8 hour process time, a voltage of 3.48 V, and NaCl and H2SO4 concentrations of 1.5 and 1.4 M, respectively. At these optimum conditions, the predicted removal efficiency was found to be 68.73%. The current efficiency and specific energy were relatively low, which was a similar efficiency of 28%. The reaction rate constants at reaction orders 1 and 2 in the electroplating industrial waste electrodeposition process were 0.1324 s-1 (R2 = 0.846) and 0.0001 s-1 (R2 = 0.913), respectively. This study contributes to further research and development of electrodeposition as a promising technology for the affordable removal and recovery of toxic metal ions from wastewater.
