The DOI matches its Crossref record.
Effect of chemical treatment on soluble residual COD in textile wastewaters
Abstract
The effect of chemical treatment on the magnitude of soluble residual COD in the biological treatment effluent is investigated for knit fabric finishing wastewater. Bentonite is selected for its potential to remove soluble COD together with color and particulate components. Chemical treatment using bentonite, when applied prior to biological treatment removes around 40% of the biodegradable as well as soluble inert COD initially present in the wastewater. As a chemical post-treatment, it acts as a polishing step, removing particulate matter and a minor portion of around 20% of the remaining soluble COD. These findings suggest chemical pre-treatment as a better alternative for the optimization of soluble COD removal.
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The dose of coagulants and the quantity of chemical sludge after biological treatment are smaller than in coagulation followed by biological treatment.
“On the other hand, the dose of coagulants and consequently the quantity of the chemical sludge after biological treatment are smaller compared to those in coagulation followed by biological treatment.57,75,100”
From Hybrid Treatment Systems for Dye Wastewater (2007) · cites this paper as [57]
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Hybrid Treatment Systems for Dye Wastewater
Hai, F. I., Yamamoto, K., & Fukushi, K. (2007) · Critical Reviews in Environmental Science and Technology · doi:10.1080/10643380601174723 · Cited by 557
Metadata
- Authors
- Dulkadiroglu, H., Dogruel, S., Okutman, D., Kabdaşlı, I., Sözen, S., & Orhon, D.
- Venue
- Water Science and Technology
- Publisher
- IWA Publishing
- Published
- 2002-06-01
- Volume
- 45
- Issue
- 12
- Pages
- 251-259
- ISSN
- 0273-1223
- 1996-9732
- Cited by
- 11
- References
- 0
- Language
- en
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