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Post-treatment of fish canning effluents by sequential nitrification and autotrophic denitrification processes

Paper ID Volume ID Publish Year Pages File Format Full-Text
34631 45037 2013 7 PDF Available
Title
Post-treatment of fish canning effluents by sequential nitrification and autotrophic denitrification processes
Abstract

In this research study a nitrifying/autotrophic denitrifying system was used for the post-treatment of an effluent coming from an anaerobic digester treating the wastewater produced in a fish canning industry. The nitrifying reactor achieved 100% of ammonia oxidation into nitrate. The effluent from this unit was fed to the autotrophic denitrifying reactor which treated a maximum sulphide loading rate (SLR) of 200 mg S2−/L d with removal percentages of 100% and 30% for sulphide and nitrate, respectively. The low nitrate removal efficiency is attributed to sulphide limitations.The operational costs of this system were estimated as 0.92 €/kg Nremoved, lower than those for conventional nitrification/denitrification processes. For nitrogen removal the SHARON/anammox processes is the cheapest option. However the combination of nitrification and autotrophic denitrification (using elemental sulphur) processes would present a better operational stability compared to the SHARON/anammox system.

Keywords
Autotrophic denitrification; Fish canning effluent; Nitrification; Nitrogen; Sulphide
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Post-treatment of fish canning effluents by sequential nitrification and autotrophic denitrification processes
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 48, Issue 9, September 2013, Pages 1368–1374
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us