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HELDIGVIS HAR PLANTER IKKE STUDERET FOSFOR-KEMI
RENS VANDET OG LUK NÆRRINGSSTOFSCYKLUSSEN
Bengt Hansen and Outi Grönfors, Kemira Oyj
bengt.hansen@kemira.com, outi.gronfors@kemira.com
RENSNING
 Ved brug af uorganiske coagulanter opnås de
laveste og mest pålidelige/ stabile niveauer af
fosfor i spildevand fra renseanlæg.
 Fjern organiske partikler og andre urenheder fra
spildevand og brug dem i stedet til at øge bio-
gasudbyttet.
LUK NÆRRINGSSTOFSCYKLUSSEN
 Maksimer jeres P genanvendelses rate og opnå
det højeste genbrugsudbytte af nærringsstoffer.
 Udfældet fosfor er tilgængeligt for planter idet
den kemiske opløselighed ikke korrelerer med
det aktuelle fosfor optag.
 Udfældet slam forbedrer jordkvaliteten og redu-
cerer udvaskningen af fosfor.
KONKLUSIONEN - TAG DISKUSSIONEN MED OS!
 Coagulanter er essentielle for en stabil og effek-
tiv fældning af fosfor i spildevand.
 Udfældet fosfor med Al eller Fe coagulanter er
tilgængelig for planter.
 De etablerede metoder til udvinding af fosfor
giver ingen – eller meget små korrelationer med
vækstudbyttet for planter.
 En kombination af kemisk og biologisk behand-
ling sikrer, at processerne er mest effektive og
stabile og derved den sikreste løsning.
BEVISERNE

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Fosfor kemi poster

  • 1. HELDIGVIS HAR PLANTER IKKE STUDERET FOSFOR-KEMI RENS VANDET OG LUK NÆRRINGSSTOFSCYKLUSSEN Bengt Hansen and Outi Grönfors, Kemira Oyj bengt.hansen@kemira.com, outi.gronfors@kemira.com RENSNING  Ved brug af uorganiske coagulanter opnås de laveste og mest pålidelige/ stabile niveauer af fosfor i spildevand fra renseanlæg.  Fjern organiske partikler og andre urenheder fra spildevand og brug dem i stedet til at øge bio- gasudbyttet. LUK NÆRRINGSSTOFSCYKLUSSEN  Maksimer jeres P genanvendelses rate og opnå det højeste genbrugsudbytte af nærringsstoffer.  Udfældet fosfor er tilgængeligt for planter idet den kemiske opløselighed ikke korrelerer med det aktuelle fosfor optag.  Udfældet slam forbedrer jordkvaliteten og redu- cerer udvaskningen af fosfor. KONKLUSIONEN - TAG DISKUSSIONEN MED OS!  Coagulanter er essentielle for en stabil og effek- tiv fældning af fosfor i spildevand.  Udfældet fosfor med Al eller Fe coagulanter er tilgængelig for planter.  De etablerede metoder til udvinding af fosfor giver ingen – eller meget små korrelationer med vækstudbyttet for planter.  En kombination af kemisk og biologisk behand- ling sikrer, at processerne er mest effektive og stabile og derved den sikreste løsning. BEVISERNE