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Title:Analiza obratovanja in blata malih komunalnih čistilnih naprav : diplomsko delo univerzitetnega študijskega programa I. stopnje
Authors:ID Fekonja, Nika (Author)
ID Urbancl, Danijela (Mentor) More about this mentor... New window
ID Simonič, Marjana (Comentor)
Files:.pdf UN_Fekonja_Nika_2023.pdf (6,86 MB)
MD5: 202810B6659C9DAEAD4FDAC4AD45D670
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Odpadne vode nastajajo pri različnih procesih in imajo velik pomen, saj se z njimi srečujemo vsakodnevno. Zato je pomembno, da imamo čistilne naprave, ki delujejo ustrezno, saj lahko tako zmanjšamo onesnaževanje okolja. Predvsem so pomembne male komunalne čistilne naprave, ki so zelo pogosto uporabljene. Odpadna voda, ki izteka iz čistilne naprave, mora ustrezati določenim kriterijem, ki so predpisani v zakonodaji. V prvem delu diplome je analizirana učinkovitost delovanja dveh malih komunalnih čistilnih naprav. Za določitev učinkovitosti delovanja čistilnih naprav so analizirani naslednji parametri: KPK, BPK5, skupni in amonijev dušik, suspendirane snovi, usedljive snovi in skupni fosfor, ki smo ga še bolj podrobno analizirali in z njegovim obarjanjem pridobili struvit. Kot stranski produkt se iz čistilnih naprav izloča blato, ki se v večini primerov zavrže. Cilj naloge je dokazati, da ima blato veliko energetsko gostoto, saj ga lahko tako uporabimo v energetske namene. V diplomi smo analizirali dva različna vzorca iz male komunalne čistilne naprave in sicer dehidrirano blato in material, ki ostane na finem situ po odstranitvi peščenih delcev in mineralnih olj. Nastale odpadke smo preučili s pomočjo torefikacije. Prav tako smo surove in termično obdelane vzorce analizirali s primerjavo elementne sestave, kurilnih vrednosti in rezultatov analiz FTIR. Ugotovili smo, da lahko blato uporabimo kot biogorivo, saj ima visoko kurilno vrednost.
Keywords:učinkovitost čistilne naprave, fosfor, torefikacija, kurilna vrednost, biogorivo
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[N. Fekonja]
Year of publishing:2023
Number of pages:1 spletni vir (1 datoteka PDF (XI, 59 f.))
PID:20.500.12556/DKUM-84593 New window
UDC:628.32(043.2)
COBISS.SI-ID:163404803 New window
Publication date in DKUM:17.07.2023
Views:655
Downloads:125
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Licences

License:CC BY-ND 4.0, Creative Commons Attribution-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nd/4.0/
Description:Under the NoDerivatives Creative Commons license one can take a work released under this license and re-distribute it, but it cannot be shared with others in adapted form, and credit must be provided to the author.
Licensing start date:26.06.2023

Secondary language

Language:English
Title:Operation and sludge analysis of small municipal wastewater treatment plants
Abstract:Wastewater is generated by a wide range of processes and is of great importance as it is encountered on a daily basis. It is therefore important to have wastewater treatment plants that work properly to reduce pollution. Small municipal wastewater treatment plants are particularly important and are very widely used. The wastewater flowing from the treatment plant must meet certain criteria laid down in legislation. In the first part of the thesis, the performance of two small municipal wastewater treatment plants was analysed. The following parameters were analysed to determine the performance of the: COD, BOD5, total and ammoniacal nitrogen, suspended solids, settleable solids, and total phosphorus, which was further analysed in detail, and struvite was obtained by phosphorus precipitation. Sludge is discharged as a by-product from wastewater treatment plants and in most cases is discarded. This thesis aimed to demonstrate that sludge has a high energy density and can be used for energy purposes. In the thesis, two different samples from a small municipal sewage treatment plant were analysed, namely dewatered sludge and the material remaining on the fine sieve after the removal of sand particles and mineral oils. The resulting waste was analysed using torrefication. We also analysed the raw and thermally treated samples by comparing elemental composition, heating values, and FTIR analysis results. We found that the sludge can be used as a biofuel as it has a high heating value.
Keywords:sewage treatment plant efficiency, phosphorus, torrefaction, heating value, biofuel


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