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Plant-availability ...
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Kvarnström, ElisabethLuleå tekniska universitet
(författare)
Plant-availability of phosphorus removed from wastewater by different processes
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Luleå :Luleå tekniska universitet,2001
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76 s.
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Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:ltu-26353
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https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26353URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:vet swepub-contenttype
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Ämneskategori:dok swepub-publicationtype
Serie
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Doctoral thesis / Luleå University of Technology 1 jan 1997 → …,1402-1544 ;2001:18
Anmärkningar
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Godkänd; 2001; 20061114 (haneit)
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The objective of this thesis was to investigate the plant-availability of P removed from wastewater by different processes, with focus on agronomic aspects. Short-term P availability was assessed by greenhouse studies, utilizing four different filter substrates and a sludge-recovered iron phosphate. It was shown that the plant-P availability of these products was not significantly different from that obtained with a water-soluble P fertilizer. It was also found that dewatering method exerted on one FeCl3- precipitated sludge did not influence the plant-P availability. The long-term effects of sludge amendment to agricultural soil was assessed by P ion concentration in solution and P transfer from soil solid phase to solution for soil samples collected from a 19-year old field experiment. The relative plant-P availability (RPA) was found to be 60% for the sludge treatments, a value that was not significantly different from 100%.
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Luleå tekniska universitet
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