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Start-up and Operation of Biofilter Coupled Nitrification and CANON for the Removal of Iron, Manganese and Ammonia Nitrogen.

07:00 EST 8th March 2018 | BioPortfolio

Summary of "Start-up and Operation of Biofilter Coupled Nitrification and CANON for the Removal of Iron, Manganese and Ammonia Nitrogen."

A pilot-scale bio-filter coupled nitrification and CANON was started up to remove iron, manganese and ammonia nitrogen from groundwater in a plant, and the main removal route of ammonia nitrogen was analyzed. The experiment showed that the bio-filter could be started up successfully and achieved stable operation after 164 days of culture development. The value of △NH-N/△NO-N was 1.49, and the oxidation and removal of Fe(Ⅱ), Mn(Ⅱ), and NH-N were (9.87±1.17), (2.25±0.06), and (1.51±0.06) mg·L, respectively. The calculation based on the quantitative relationship between nitrogen conservation and dissolved oxygen (DO) measurement indicated that the contribution of CANON to NH-N removal was 33.48%-38.87%, and the average ratio of ammonia nitrogen removal amount to DO was 1:3.79-1:3.94. The removal ratio of ammonia nitrogen was lower with lower temperature.

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This article was published in the following journal.

Name: Huan jing ke xue= Huanjing kexue
ISSN: 0250-3301
Pages: 1264-1271

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