Effect of Selected Textile Effluents on Activated Sludge Nitrification Process
- 1 November 2005
- journal article
- research article
- Published by Taylor & Francis Ltd in Journal of Environmental Science and Health, Part A
- Vol. 40 (11), 1997-2007
- https://doi.org/10.1080/10934520500229304
Abstract
In this study, a recently developed methodology for the assessment of the inhibitory effect on nitrifying biomass was applied to several textile effluents from productive processes. Effluents are classified according to the degree of inhibition as EC50 (concentration producing 50% nitrification inhibition); the investigated textile effluents showed a wide range of EC50 ranging from 20 ml gVSS− 1 (83 ml l− 1) to values above 100 ml gVSS− 1 (300 ml l− 1) for effluents produced by rinsing phases. Taking into account biodegradability and toxicity evaluations, most of the effluents showed a good treatability in conventional biological wastewater treatment plant. On the other hand three textile effluents showed significant toxic effects towards nitrifying biomass. In any case, the proposed procedure represents an efficient tool to prevent treatment failures due to toxic discharges.Keywords
This publication has 12 references indexed in Scilit:
- TextilesWater Environment Research, 2004
- Inhibition of Nitrification by Heavy Metals and Organic Compounds: The ISO 9509 TestEnvironmental Engineering Science, 2003
- Theory of pH-stat titrationBiotechnology & Bioengineering, 2003
- Use of a microbial sensor: inhibition effect of azo-reactive dyes on activated sludgeBioprocess and Biosystems Engineering, 2002
- A greener approach to cotton dyeings with excellent wash fastnessGreen Chemistry, 2002
- Necessity of toxicity assessment in Turkish industrial discharges (examples from metal and textile industry effluents).Environmental Monitoring and Assessment, 2002
- Toxicity evaluation of reactive dyestuffs, auxiliaries and selected effluents in textile finishing industry to luminescent bacteria Vibrio fischeriChemosphere, 2001
- pH-Stat Titration to Assess Nitrification InhibitionJournal of Environmental Engineering, 2001
- Biodegradability enhancement of refractory pollutants by ozonation: A laboratory investigation on an azo-dyes intermediateWater Science & Technology, 1998
- The assessment of the possible inhibitory effect of dyestuffs on aerobic waste-water bacteria experience with a screening testChemosphere, 1981