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Assessment of struvite and K-struvite recovery from digested manure

Authors: Tarragó Abella, Elena;

Assessment of struvite and K-struvite recovery from digested manure

Abstract

Els humans han tingut un impacte en el cicle natural del fòsfor, un recurs limitat, i són vàries les prediccions sobre la possible extinció d’aquest en 100-250 anys. Per tant, les accions a dur a terme durant els propers 10-25 anys haurien d’anar enfocades a la recuperació d’aquest, per exemple, a partir de fonts renovables com els purins. Així doncs, es planteja la recuperació de fòsfor en forma d’estruvita o K-estruvita a partir de purins, ja que la recuperació de nutrients essencials (nitrogen, fòsfor, potassi) es considera un avanç important i essencial per assegurar el subministrament de fòsfor econòmicament a llarg termini, al mateix temps que s’obté un fertilitzant d’alliberació lenta. En aquesta tesi doctoral s’ha demostrat la viabilitat de la recuperació de nutrients a partir de purins, una matriu complexa amb una elevada concentració de sòlids. També pretén aportar innovacions i reflexions sobre la recuperació sostenible de fertilitzants (estruvita i/o K-estruvita) a partir de purins

Human population has had an impact on the natural phosphorus’ cycle, a limited resource, and the predictions show that this resource could be exhausted in 100-250 years. Therefore, the actions for the coming 10-25 years must be focus on the recovery of phosphorus, for example, from renewable sources such as manure. Thus, phosphorus recovery as struvite or K-struvite from manure is investigated, as the recovery of the essential nutrients is considered to be a significant breakthrough for assuring long-term and economical phosphorus supply, while recovering a valuable slow-release fertilizer. Therefore, this PhD thesis proves the feasibility of recovering nutrients from manure, a complex matrix with high concentration of solids. Furthermore, aims to bring innovation and insights on the sustainable recovery of fertilizers (i.e. ammonium and/or potassium struvite) from swine manure

Country
Spain
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Keywords

Upflow velocity, Estruvita i k-estruvita, Estruvita y k-estruvita, Velocidad de flujo ascendente, Purins, Velocitat de flux ascendent, Struvite and k-struvite, Manure, Cristalización, Fertilitzants, Phosphorus recovery, Purines, Cristal·lització, Fertilizantes, 628, Recuperació de fòsfor, 628 - Enginyeria sanitària. Aigua. Sanejament. Enginyeria de la il·luminació, K and P recovery, Crystallization, Fertilizers, Recuperación de fósforo

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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