Electrolytic treatment of latex wastewater

A novel method of latex wastewater treatment was developed based on in-situ hypochlorous acid generation. The hypochlorous acid was generated in an undivided electrolytic cell consisting of two sets of graphite as anode and stainless sheets as cathode. The generated hypochlorous acid served as an oxidizing agent to destroy the organic present in the latex wastewater. For an influent COD concentration of 3,820 mg/L at an initial pH 4.5; current density of 74.5 mA/cm2; sodium chloride content 3% and electrolysis period of 90 min, resulted in the following residual concentration pH 7.3; COD 78 mg/L; BOD5 55 mg/L; TOC 45 mg/L; residual total chlorine 136 mg/L; turbidity 17 NTU and temperature 54°C, respectively. In the case of 2% sodium chloride content for the above, said operating condition resulted in a residual concentration of pH 7; COD 162 mg/L; BOD5 105 mg/L; TOC 90 mg/L; residual total chlorine 122 mg/L; turbidity 26 NTU and temperature 60°C respectively. The energy requirements were found to be 35 and 50 Wh/L while treating 24 L of latex wastewater at 3 and 2% sodium chloride concentration at a current density 74.5 mA/cm2. The observed energy difference was due to the improved conductivity at high sodium chloride content.

[1]  F. Albert Cotton,et al.  Advanced Inorganic Chemistry , 1999 .

[2]  Tülay A. Özbelge,et al.  Removal of phenolic compounds from rubber–textile wastewaters by physico-chemical methods , 2002 .

[3]  Desa Ahmad,et al.  Electrolytic Treatment of Beer Brewery Wastewater , 2006 .

[4]  M. Gutiérrez,et al.  Decolourisation of simulated reactive dyebath effluents by electrochemical oxidation assisted by UV light. , 2006, Chemosphere.

[5]  S. Palmas,et al.  Electrochemical Oxidation of Chlorophenols , 1997 .

[6]  E. J. Corat,et al.  Efficiency study of perforated diamond electrodes for organic compounds oxidation process , 2003 .

[7]  N. Balasubramanian,et al.  In situ hypochlorous acid generation for the treatment of distillery spentwash , 1999 .

[8]  Nicolas Kalogerakis,et al.  Electrochemical oxidation of olive oil mill wastewaters. , 2005, Water research.

[9]  K. Chae,et al.  Integrated biological and electro-chemical treatment of swine manure. , 2004, Water science and technology : a journal of the International Association on Water Pollution Research.

[10]  K. Lasaridi,et al.  Combined bioremediation and advanced oxidation of green table olive processing wastewater , 2005 .

[11]  M. McBride.  Environmental Chemistry of Soils , 1994 .

[12]  P. Mccarty,et al.  Chemistry for environmental engineering , 1978 .

[13]  Shing Tet Leong,et al.  Reutilization of wastewater in a rubber-based processing factory: a case study in Southern Thailand , 2003 .

[14]  C. Pulgarin,et al.  Electrochemical vs. Photochemical Pretreatment of Industrial Wastewaters , 1996 .

[15]  P Pearce,et al.  Occurrence and treatment trials of endocrine disrupting chemicals (EDCs) in wastewaters. , 2005, Chemosphere.

[16]  A. E. Greenberg,et al.  Standard methods for the examination of water and wastewater : supplement to the sixteenth edition , 1988 .

[17]  Chulhwan Park,et al.  Pilot scale treatment of textile wastewater by combined process (fluidized biofilm process-chemical coagulation-electrochemical oxidation). , 2002, Water research.

[18]  Lidia Szpyrkowicz,et al.  Influence of anode material on electrochemical oxidation for the treatment of tannery wastewater. , 2005, Water research.

[19]  S. Daniele,et al.  Electrochemical Destruction of Thiourea Dioxide in an Undivided Parallel Plate Electrodes Batch Reactor , 2001 .

[20]  K. Palanivelu,et al.  Electrochemical treatment of industrial wastewater. , 2004, Journal of hazardous materials.

[21]  A. Rakkoed,et al.  Nitrogen removal in attached growth waste stabilization ponds of wastewater from a rubber factory , 1999 .

[22]  K. Vijayaraghavan,et al.  In Situ Hypochlorous Acid Generation for Treatment of Tannery Wastewaters , 1998 .

[23]  S. Ong,et al.  Ultrafiltration of ink and latex wastewaters using cellulose membranes , 2004 .

[24]  Yusuf Yavuz,et al.  Electrochemical oxidation of phenol in a parallel plate reactor using ruthenium mixed metal oxide electrode. , 2006, Journal of hazardous materials.

[25]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[26]  M. Bodzek,et al.  Ultrafiltration of latex wastewaters , 1996 .

[27]  S. Kaul,et al.  Electrochemical oxidation of tannery wastewater , 2001 .

[28]  Doğan Doğan,et al.  Electrochemical oxidation of textile dye indigo , 2005 .