Applicability of diamond electrode/anode to the electrochemical treatment of a real textile effluent

Textile industries have as main characteristic the generation of effluents with high color, and efficient treatment techniques are necessary. In this context, this study compared the efficiency of the electrochemical treatment for color removal from synthetic textile effluent using two configurations of sacrificial electrodes, parallel plates and array of cylindrical electrodes. For application of the electroflocculation technique, an electrochemical reactor was used, in a laboratory scale, operated in a continuous flow. The synthetic textile effluent was prepared with preset concentrations of reactive dye Blue 5G and sodium chloride. Sacrificial iron (Fe) electrodes with different configurations were used: parallel plates and cylindrical electrodes. The Hydraulic Retention Time (HRT) and electric current density (j) were controlled, and their effects on color removal were evaluated using a Central Composite Rotational Design (CCRD) composed of 12 trials. For the electrochemical treatment using parallel plates, the color removal efficiency ranged from 56.13% to 98.95% and for the electrochemical treatment using an array of cylindrical electrode, the color removal efficiency varied from 2.11% to 97.84%. The mathematical models representative of the process explained a high proportion of the total data variability, with a coefficient of variation of 99.49% and 97.21% for parallel plates and arrangement of cylindrical electrodes, respectively. The electrochemical treatment using parallel plates presents advantages over the configuration using a cylindrical electrode array, since the color removal efficiency is superior under the same operating conditions, representing economic and environmental gains.

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Detoxification of Textile Effluent By Using Electrochemical Treatment Method

ECS Meeting Abstracts ◽

10.1149/ma2005-01/33/1320 ◽

2005 ◽

Keyword(s):

Treatment Method ◽

Electrochemical Treatment ◽

Textile Effluent

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Decolourization of Textile effluent using Mutant strains of Aspergillus niger and Penicillium spp

Greener Journal of Biochemistry and Biotechnology ◽

10.15580/gjbb.2016.1.050415064 ◽

2016 ◽

Vol 3 (1) ◽

pp. 001-011

Author(s):

U.Z. Umar ◽

◽

K. Sharma Anil ◽

M.B. Tijjani ◽

Keyword(s):

Aspergillus Niger ◽

Textile Effluent ◽

Mutant Strains ◽

Penicillium Spp

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Bioadsorption of Multiple Heavy Metal Ions by Rhizophora Apiculate sp. and Elaesis Guineensis sp.

Scientific Research Journal ◽

10.24191/srj.v14i1.2699 ◽

2017 ◽

Vol 14 (1) ◽

pp. 15

Author(s):

M.B. Nicodemus Ujih ◽

Mohammad Isa Mohamadin ◽

Milla-Armila Asli ◽

Bebe Norlita Mohammed

Keyword(s):

Heavy Metal ◽

Metal Ions ◽

Removal Efficiency ◽

Heavy Metal Ions ◽

Agricultural Waste ◽

Living Organism ◽

Heavy Metal Concentration ◽

Industrial Area ◽

Electrochemical Treatment ◽

Chemical Oxidation

Heavy metal ions contamination has become more serious which is caused by the releasing of toxic water from industrial area and landfill that are very harmful to all living organism especially human and can even cause death if contaminated in small amount of heavy metal concentration. Currently, peoples are using classic method namely electrochemical treatment, chemical oxidation/reduction, chemical precipitation and reverse osmosis to eliminate the metal ions from toxic water. Unfortunately, these methods are costly and not environmentally friendly as compared to bioadsorption method, where agricultural waste is used as biosorbent to remove heavy metals. Two types of agricultural waste used in this research namely oil palm mesocarp fiber (Elaesis guineensis sp.) (OPMF) and mangrove bark (Rhizophora apiculate sp.) (MB) biomass. Through chemical treatment, the removal efficiency was found to improve. The removal efficiency is examined based on four specification namely dosage, of biosorbent to adsorb four types of metals ion explicitly nickel, lead, copper, and chromium. The research has found that the removal efficiency of MB was lower than OPMF; whereas, the multiple metals ions removal efficiency decreased in the order of Pb2+ > Cu2+ > Ni2+ > Cr2+.

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