Biological treatment of a textile effluent after electrochemical oxidation of reactive dyes
| Autor: | Martí Crespi, Mercè Vilaseca, Maria-Carmen Gutiérrez, Montserrat López-Mesas, Víctor López-Grimau |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament de Projectes d'Enginyeria, Universitat Politècnica de Catalunya. Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa, Universitat Politècnica de Catalunya. ENMA - Enginyeria del Medi Ambient |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Indústria tèxtil -- Residus
Enginyeria tèxtil ::Impacte ambiental [Àrees temàtiques de la UPC] Enginyeria tèxtil ::Fabricació tèxtil [Àrees temàtiques de la UPC] Aigües residuals -- Depuració Industrial Waste Pilot Projects Sulfuric Acid Esters Water Purification chemistry.chemical_compound Indústria tèxtil -- Contaminació Environmental Chemistry Reactive dye Water Pollutants Waste Management and Disposal Effluent Electrodes Water Science and Technology Waste management Ecological Modeling digestive oral and skin physiology Chemical oxygen demand food and beverages Electrochemical Techniques Pulp and paper industry Pollution Waste treatment Activated sludge Biodegradation Environmental chemistry Wastewater Textile Industry Sewage treatment Dyeing Azo Compounds |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname |
| Popis: | Electronic version of an article published as "Water environment research", vol.82, no.2, 2010,p.176-182. DOI No:10.2175/106143009X447902 In this work, a synthetic textile effluent containing a reactive dye (C.I. Reactive Orange 4) was treated in an electrochemical cell with titanium covered by platinum oxide (Ti/PtOx) electrodes to remove color. The discolored effluent was mixed with other textile mill process effluents (scouring, bleaching, washing, etc.), according to the rate of each effluent in the mill, and was submitted to biological treatment (activated sludge plant). Two biological plants were run simultaneously to evaluate the influence of oxidant products generated during the electrochemical treatment. The final chemical oxygen demand (COD) removal in both plants was 65 to 72%. The yield of the activated sludge plants was not affected by the addition of 10% of the discolored dyeing effluent (even when oxidants products were not removed), which indicates that the previous electrochemical treatment do not produce inhibition effects on the biological plant. However, in the case of direct addition of the discolored effluent, the biological treatment plant required a longer adaptation period. In addition, the electrolytic respirometry tests showed that all the biodegradable organic matter was removed, which implies that the yield in organic matter removal was the maximum possible for this type of treatment. |
| Databáze: | OpenAIRE |
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