20.500.12556/DKUM-85304 Razvoj tehnološkega postopka za odstranjevanje mikroonesnažil na viru pitne vode diplomsko delo univerzitetnega študijskega programa I. stopnje The development of tehnological process for removal of micropollutants at the drinking water source S hidrotermalno karbonizacijo (HTC) pri 250°C in reakcijskem času 5 ur smo iz odpadne pogače konopljinih semen sintetizirali hidro-oglje. Proizvedeno hidro-oglje smo najprej kemijsko modificirali s KOH, čemur je sledila termična modifikacija v dušikovi atmosferi pri 800°C. Rezultate karakterizacije hidro-oglja poimenovanega kot KS-KOH, smo primerjali z rezultati komercialnega aktivnega oglja pulsorb C. Ugotovili smo, da obe oglji vsebujeta podobne funkcionalne skupine, vendar hidro-oglje KS-KOH ob bolj negativnem zeta potencialu vsebuje več negativnih funkcionalnih skupin. Izmerili smo, da je v povprečju velikost delcev sintetiziranega hidro-oglja KS-KOH nižja od aktivnega oglja pulsorb C, kar pomeni da ima ta višjo specifično površino. Rezultati analiz kažejo, da je adsorpcijska kapaciteta hidro-oglja KS-KOH manjša od pulsorb C, vendar bolj učinkovito deluje na izločanje atrazina iz vode pri nižjih koncentracijah. Za obe aktivni oglji je bilo pri adsorpciji atrazina ugotovljeno, da sledita Langmuirjevi adsorpcijski izotermi. Namen opravljenih primerjav in izračun koristnih kapacitet je pridobiti podatke za dimenzioniranje adsorberja, ter izračunati volumen pitne vode, ki bi jo lahko prečistili v enem polnjenju. Pri iskanju najustreznejšega materiala za izdelavo adsorberja smo iz opisa lastnosti AISI 304 ugotovili, da izpolnjuje zahtevane konstrukcijske pogoje. V diplomski nalogi predstavljamo sistem obratovanja vzporedno postavljenih adsorberjev, ki jih pred zasičenjem vežemo zaporedno, da v celoti izkoristimo kapaciteto ene polnitve. Through hydrothermal carbonization (HTC) at 250°C and a reaction time of 5 hours, we synthesized hydrochar from waste hemp seed cake. We modified the produced hydrochar chemically with KOH and thermally at 800°C (under nitrogen atmosphere). The results of the hydrochar characterization were compared with the results of commercial activated carbon pulsorb C. We found that both charcoals contain similar functional groups, but hydrochar KS-KOH contains more negative functional groups at a more negative zeta potential. We measured that the average particle size of synthesized hydrochar KS-KOH is smaller than activated carbon pulsorb C, meaning it has a higher specific surface area. The analysis results indicate that the adsorption capacity of hydrochar KS-KOH is lower than pulsorb C, but it is more effective in removing atrazine from water at lower concentrations. For both activated charcoals, it was determined during atrazine adsorption that they follow the Langmuir adsorption isotherm. The purpose of the comparisons and capacity calculations carried out was to obtain data for the sizing of an adsorber and calculate the volume of drinking water that could be purified in one filling. In searching for the most suitable material for making an adsorber, we determined from the description of the properties of AISI 304 that it meets the required construction conditions. In the thesis, we present an operating system of parallelly installed adsorbers, which we connect in series before saturation to fully utilize the useful capacity of one filling. aktivno oglje adsorpcija dimenzioniranje adsorberja atrazin adsorpcijska kapaciteta pitna voda activated carbon adsorption adsorber design atrazine adsorption capacity drinking water true true false [T. Farkaš] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2023-08-24 23:58:45 2023-09-06 09:40:42 2023-09-28 03:05:35 0000-00-00 00:00:00 2023 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (X, 33 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 628.161:544.723.21(043.2) 165907203 UN_Farkas_Tilen_2023.pdf UN_Farkas_Tilen_2023.pdf 1 E0DD59B8D6AA6F4ED87E52E4A334D346 b89155ca47071a017c8fe743c7ddf4eef9ea2a4ab64f201163a26d37a00360d6 260841d2-4bc4-11ee-9b29-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=171458 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0