Zobrazit minimální záznam

dc.contributor.authorCalábková, Katrin
dc.contributor.authorMalíková, Petra
dc.contributor.authorHeviánková, Silvie
dc.contributor.authorČervenková, Michaela
dc.date.accessioned2019-01-09T12:38:34Z
dc.date.available2019-01-09T12:38:34Z
dc.date.issued2018
dc.identifier.citationGeoScience Engineering. 2018, vol. 64, no. 4, p. 37-40 : ill.cs
dc.identifier.issn1802-5420
dc.identifier.urihttp://hdl.handle.net/10084/133509
dc.description.abstractDigestate from biogas plants, formed by dewatering anaerobically stabilized sludge, is characteristic of high concentrations of phosphates and ammonia nitrogen suitable for further use. Phosphorus is an element widely used to produce fertilizers, and because of its continually shortening natural supplies, recycling of phosphorus is gaining on significance. Both phosphorus and nitrogen are important elements and their presence affect the quality of water resources. Both elements can contribute to eutrophication. At the same time, both phosphorus and ammonia nitrogen, are important elements for agricultural production, and therefore greater demands are being made on the effort to connect sewage treatment processes and the process of recycling of these nutrients. A suitable product of phosphorus and ammonia nitrogen are phosphates in the form of a structurally-poorly soluble precipitate of magnesium ammonium phosphate (struvite). This form of slowly decomposing fertilizer is distinguished by its fertilizing abilities. Compared to direct use of digestate as a fertilizer, struvite is more stable and can gradually release ammonia nitrogen for a long time without unnecessary losses. In the reported experiments, the precipitation efficiency of the recycling of ammonia nitrogen and phosphorus from the digestate liqour (liquid discharge from digestate) was, at a stoichiometric ratio of Mg2+: NH4+: PO43- (3.2: 1: 0.8) and a stirring time of 15 minutes, 87 % for ammonia nitrogen ions.cs
dc.format.extent660312 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoencs
dc.publisherVysoká škola báňská-Technická Univerzita Ostravacs
dc.relation.ispartofseriesGeoScience Engineeringcs
dc.relation.urihttp://gse.vsb.cz/ojs/index.php/GSE/article/view/214/168cs
dc.rights© Vysoká škola báňská-Technická Univerzita Ostrava. Hornicko-geologická fakulta
dc.subjectdigestatecs
dc.subjectbiogas plantscs
dc.subjectammonia recoverycs
dc.subjectprecipitationcs
dc.titleRecycling of phosphorus and ammonia nitrogen from digestatecs
dc.typearticlecs
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs


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Zobrazit minimální záznam