2024-03-29T10:01:59Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/606102022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Sulfonamide antibiotic removal and nitrogen recovery from synthetic urine by the combination of rotating advanced oxidation contactor and methylene urea synthesis processFukahori, S.Fujiwara, T.Ito, R.Funamizu, N.nitrogen recoveryrotating advanced oxidation contactorsulfonamide antibiotics518The combination of nitrogen recovery and pharmaceutical removal processes for livestock urine treatment were investigated to suppress the discharge of pollutants and recover nitrogen as resources. We combined methylene urea synthesis from urea and adsorption and photocatalytic decomposition of sulfonamide antibiotic using rotating advanced oxidation contactor (RAOC) contained for obtaining both safe fertilizer and reclaimed water. The methylene urea synthesis could recover urea in synthetic urine, however, almost all sulfonamide antibiotic was also incorporated, which is unfavorable from a safety aspect if the methylene urea is to be used as fertilizer. Conversely, RAOC could remove sulfonamide antibiotic without consuming urea. It was also confirmed that the methylene urea could be synthesized from synthetic urine treated by RAOC. Thus, we concluded that RAOC should be inserted prior to the nitrogen recovery process for effective treatment of urine and safe use of methylene urea as fertilizer.IWA PublishingJournal Articleapplication/pdfhttp://hdl.handle.net/2115/60610https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/60610/2/Water%20Sci.%20Technol.%2072%282%29%20238-244%20%282015%29.docx-2.pdf0273-1223Water science and technology7222382442015-02enginfo:pmid/26177406info:doi/10.2166/wst.2015.182©IWA Publishing 2015. The definitive peer-reviewed and edited version of this article is published in Water science and technology 72(2), 238-244, 2015, DOI:10.2166/wst.2015.182 and is available at www.iwapublishing.com.author