{"refrec":{"BRefID":15109,"RR":"<b>Rusten, B.; Harr, C.</b> (1989). Design and evaluation of a water recycling plant for Atlantic salmon smolt production, <b><i>in</i></b>: De Pauw, N. <i>et al.</i> (Ed.) <i>Aquaculture: a biotechnology in progress: volume 2.</i> pp. 1143-1148","BEntID":15109,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: De Pauw, N. <i>et al.</i> <i>Aquaculture: a biotechnology in progress: volume 2.</i> pp. 1143-1148","DocTypID":17,"DocType":"Book chapters","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Rusten, B.; Harr, C.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Rusten, B.; Harr, C.","Englishabstract":"A water recycling plant for Atlantic salmon smolt production has been developed with the aim to reduce water consumption to less than 10% of the water flow. The effluent from the fish tanks goes to a mechanical filter for removal of particles, followed by two aerated submerged biological filters for nitrification and removal of dissolved organics. The recycled water is pumped through a dual media sand filter for removal of fine solids and excess biofilm. UV-generated ozone is added to the water before and after the sand filter. Make-up water is added ahead of a heat exchanger. Water flows then through packed column aerators, before it is returned to the fish tanks. Various ratios of recycled water and make-up water (down to 6% of the flow or 80% of the volume of the system per day) have been tested. Due to high biomass concentrations, dissolved oxygen levels in the fish tanks have been as low as 4.4mg.l<sup>-1</sup>, and generally below 6.0mg.l<sup>-1</sup>. Nevertheless, daily growth of Atlantic salmon juveniles of 2.1% was observed at a mean temperature of about 14°C. Water has been of good quality, with median values of 0.15mg.l<sup>-1</sup> of NH<sub>4</sub>+-N, 0.016mg.l<sup>-1</sup> of NO<sub>2</sub>-N, 0.6mg.l<sup>-1</sup> of suspended solids (SS) and 22mg.l<sup>-1</sup> of COD.","AbstractOtherLang":null,"BibLvlCode":"AM","StandardTitle":"Design and evaluation of a water recycling plant for Atlantic salmon smolt production","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1989,"MonPub":null,"DateUpdate":"2017-07-31","DateCreate":"2001-08-08","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":15109,"PubliDate":1989,"Pagination":"1143-1148","XtraPublOfAnaID":null,"ISBN":"90-71625-02-8","Volume":null,"Issue":null,"BRefMon":6634,"BRefMonRR":"<b>De Pauw, N. <i>et al.</i></b> (1989). 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