Use of ozone and/or UV in the treatment of effluents from board paper industry.
The aim of this work has been to study the viability of ozone and/or UV in the treatment of cardboard industry effluents. Several model compounds have been chosen for the experiments: guaicol, eugenol, glucose, acetate and butyrate. Significant differences in the ozonisation rates are observed between phenolic products coming from lignin (eugenol and guaiacol) and aliphatic compounds. Reactions fit in all cases a pseudo-first order kinetics and are influenced by the pH of the solution. Real effluents have also been tested, and the COD decrease has been found to depend on the fatty acids/phenols ratio. Finally, respirometric studies have shown an increase in the BODst in effluents subjected to a mild oxidation, while under stronger conditions a BODst decrease is observed.
Departamento de Ingeniería Textil y Papelera, EPSA-UPV, Universidad Politécnica de Valencia, Paseo del Viaducto 1, E-03801 Alcoy, Spain. aamat@txp.upv.es
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Amat
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Arques
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Miranda
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López
D001420:Bacteria, Aerobic / Q000378:metabolism; D019149:Bioreactors; D002087:Butyrates / Q000737:chemistry / Q000528:radiation effects; D005054:Eugenol / Q000737:chemistry / Q000528:radiation effects; D005947:Glucose / Q000737:chemistry / Q000528:radiation effects; D006139:Guaiacol / Q000737:chemistry / Q000528:radiation effects; D007220:Industrial Waste; D010083:Oxidants, Photochemical / Q000737:chemistry; D010084:Oxidation-Reduction; D010100:Oxygen / Q000032:analysis; D010126:Ozone / Q000737:chemistry*; D010209:Paper; D019346:Sodium Acetate / Q000737:chemistry / Q000528:radiation effects; D014466:Ultraviolet Rays; D014865:Waste Disposal, Fluid / Q000379:methods; D014874:Water Pollutants, Chemical / Q000528:radiation effects
D002087:Butyrates; D007220:Industrial Waste; D010083:Oxidants, Photochemical; D014874:Water Pollutants, Chemical; D005054:Eugenol; D019346:Sodium Acetate; D010126:Ozone; D006139:Guaiacol; D005947:Glucose; D010100:Oxygen