Title: Use of fluidized bed biofilter and immobilized<i>Rhodopseudomonas palustris</i>for ammonia removal and fish health maintenance in a recirculation aquaculture system
Abstract: Aquaculture ResearchVolume 44, Issue 3 p. 327-334 Review Article Use of fluidized bed biofilter and immobilized Rhodopseudomonas palustris for ammonia removal and fish health maintenance in a recirculation aquaculture system Zhan Peirong, Zhan Peirong Heilongjiang River Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Harbin, ChinaSearch for more papers by this authorLiu Wei, Corresponding Author Liu Wei Heilongjiang River Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Harbin, ChinaCorrespondence: L Wei, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Harbin 150076, China. E-mail: [email protected]Search for more papers by this author Zhan Peirong, Zhan Peirong Heilongjiang River Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Harbin, ChinaSearch for more papers by this authorLiu Wei, Corresponding Author Liu Wei Heilongjiang River Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Harbin, ChinaCorrespondence: L Wei, Heilongjiang River Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Harbin 150076, China. E-mail: [email protected]Search for more papers by this author First published: 01 December 2011 https://doi.org/10.1111/j.1365-2109.2011.03038.xCitations: 15Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Intensive recirculating aquaculture relies on biofilters to sustain satisfactory water quality in the system. Fluidized bed and immobilized cell technologies were used to remove ammonia from the water and maintain fish health. A high-rate nitrifying fluidized bed biofilter combined with valveless filter was designed for use in a recirculation aquaculture system (RAS). The suspended solids produced during fish culture could automatically be removed using a valveless filter. Natural porosity with fitting proportion, steady fluidization and expanding rate was chosen as the fluidized carrier. The technology of bacterial separation and cultivation was used. The immobilized Rhodopseudomonas palustris (R. palustris) produced through a biotechnologically embedding medium is suitable for fish and could help prevent diseases. Nitrification was promoted through the selective rearing of nitrobacteria in a fluidized bed biofilter. Water quality was improved using fluidized bed biofilter and immobilized R. palustris in the RAS. In addition, the proposed system was able to reduce costs. Maximum fish load was 45 ± 3 kg m−3 in the closed recirculating water fish culture system, and water use was reduced by 80–90%. The total ammonia nitrogen removal rate of the technology was 80–95%, and nitrite N removal rate was above 80%. Citing Literature Volume44, Issue3February 2013Pages 327-334 RelatedInformation