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Remediation/Treatment
Determination of inert COD from different dyestuff used textile industries
Article first published online: 18 AUG 2011
DOI: 10.1002/ep.10583
Copyright © 2011 American Institute of Chemical Engineers (AIChE)
Additional Information
How to Cite
Ozkan, O., Oguz, M. and Varinli, F. (2012), Determination of inert COD from different dyestuff used textile industries. Environ. Prog. Sustainable Energy, 31: 577–584. doi: 10.1002/ep.10583
Publication History
- Issue published online: 16 OCT 2012
- Article first published online: 18 AUG 2011
- Abstract
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Keywords:
- reactive dye;
- indigo dye;
- textile wastewater;
- COD fractions;
- inert COD
Abstract
This study was performed to compare the chemical oxygen demand (COD) fractions of textile wastewaters containing reactive and indigo dyestuffs. In the textile wastewater containing reactive dyestuff, inert soluble COD (SI) concentration was found as 94 mg/L and residual soluble microbial products concentration (SP1) was 53 mg/L. This total (SI + SP1) was about 21 ratios of total initial COD (CTO). On the other hand, in the textile wastewater containing indigo dyestuff, SI and SP2 were observed as 160 mg/L and 69 mg/L, respectively, which is about 21 ratios of CTO. The investigation of different dyestuff used wastewaters indicated that indigo dyestuff used textile industry wastewater had higher inert COD content due to the complex structure of the indigo dyestuff. However, the biodegradability characteristics show similarity for both wastewaters. The results also indicated that biological treatment alone cannot be adequate to provide the discharge limits for both wastewaters. © 2011 American Institute of Chemical Engineers Environ Prog, 2011