magistrsko delo
Marko Hirsch (Avtor), Andrej Ovca (Recenzent), Martina Oder (Mentor)

Povzetek

Uvod: Z namenom preprečevanja opeklin za otroške vrtce velja, da topla voda na odvzemnih mestih otrok, ne sme presegati 35 °C, ob tem pa se v hišnem vodovodnem omrežju tople vode vzpostavijo idealni pogoji za kolonizacijo bakterije. V teh objektih je zato pomembno izvajanje preventivnih ukrepov in redna kontrola stanja kolonizacije hišnega vodovodnega omrežja. Namen: Želeli smo preveriti, če imajo vrtci pripravljen Načrt za obvladovanje legioneloz, če izvajajo mikrobiološko kontrolo vode, morebitno razliko v učinkovitosti različnih sistemov priprave in distribucije tople vode pri preprečevanju razmnoževanja bakterije Legionella v omrežju in če na to vpliva vgrajeni materiali. Metode dela: Po pregledu strokovne literature na področju bakterije Legionella in različnih načinov priprave vode smo izdelali delno strukturiran vprašalnik. S pomočjo vprašalnika smo od pozvanih vrtcev v Ljubljani poskušali pridobiti podatke o številu enot, uporabljenih materialih v hišnem vodovodnem omrežju, sistemu zagotavljanja predpisane temperature vode, Načrtu preprečevanja legioneloz, izvajanju preventivnih ukrepov in rezultatih laboratorijskega preskušanja odvzetih vzorcev vode na prisotnost bakterije Legionella. Rezultati: Od 23 povabljenih vrtcev so v 10 potrdili sodelovanje, kar skupaj predstavlja 42 objektov. Večina objektov je starejših od 40 let in imajo vodovodne sisteme iz različnih materialov (bakrene cevi, litoželezne pocinkane cevi, ipd.). V 83 % objektov imajo zagotovljeno interno pripravo tople vode. Toplo vodo v 45 % objektov pripravljajo in distribuirajo z uporabo nizkotemperaturnega sistema. V manjšem številu objektov zagotavljajo ustrezno temperaturo vode na odvzemnem mestu z uporabo podometnih mešalnih ventilov in hibridnimi elektronskimi mešalnimi ventili. Vsi vrtci imajo pripravljen program preprečevanja legioneloz in imajo opredeljeno nizko oceno tveganja. V treh vrtcih izvajajo redno kontrolo prisotnosti Legionella od leta 2019, v ostalih vrtcih tega ne izvajajo. Vsi obravnavani objekti so bili v preteklosti mikrobiološko kolonizirani z bakterijo Legionella spp. Razprava in sklep: Bistveno vlogo pri obvladovanju mikrobiološkega tveganja igra poznavanje področja odgovorne osebe. V vrtcih, kjer izvajajo kontrolo stanja sistema, so bile kontrole sistema v preteklosti nekonsistentne, korektivnih ukrepov niso izvajali. S prenosom Direktive (EU) 2020/2184 v slovenski pravni red se stanje na tem področju ne bo bistveno spremenilo. V raziskavi ni bilo mogoče potrditi vpliva vgrajenega materiala na število bakterij Legionella v hišnem vodovodnem omrežju.

Ključne besede

magistrska dela;sanitarno inženirstvo;tehnični predpisi;hišno vodovodno omrežje;vgrajeni materiali;načrt preprečevanja legioneloz;Legionella;

Podatki

Jezik: Slovenski jezik
Leto izida:
Tipologija: 2.09 - Magistrsko delo
Organizacija: UL ZF - Zdravstvena fakulteta
Založnik: [M. Hirsch]
UDK: 614
COBISS: 105623555 Povezava se bo odprla v novem oknu
Št. ogledov: 131
Št. prenosov: 24
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Comparison of different preparation and hot water distribution systems at prevention and control reproduction of Legionella in kindergartens
Sekundarni povzetek: Introduction: In order to prevent burns in kindergartens, the hot water in children's collection points should not exceed 35 ° C, and in the hot water supply network, ideal conditions are created for the colonization of bacteria. In these facilities, it is therefore important to implement preventive measures and regularly monitor the state of colonization of the domestic water supply network. Purpose: We wanted to check if kindergartens have a Legionnaires' Control Plan, if they perform microbiological control of water, possible differences in the effectiveness of different hot water preparation and distribution systems in preventing the growth of Legionella in the network and if it is influenced by embedded materials. Methods: After reviewing the literature in the field of Legionella bacteria and various methods of water preparation, we prepared a partially structured questionnaire. With the help of a questionnaire, we tried to obtain data from the invited kindergartens in Ljubljana on the number of units used, on the materials used in the home water supply network, the system for ensuring the prescribed water temperature, the Legionnaires' Prevention Plan, preventive measures and the results of laboratory testing of water samples for Legionella. Results: Out of 23 invited kindergartens, in 10 kindergartens they confirmed their participation, which together represents 42 facilities. Most of the buildings are older than 40 years and have plumbing systems built of different materials (copper pipes, galvanized iron pipes, etc.). 83% of the facilities have internal hot water treatment. Hot water in 45% of facilities is prepared and distributed and prepared using a low-temperature system. In a small number of facilities, they ensure the appropriate water temperature at the collection point by using concealed mixing valves and hybrid electronic mixing valves. All kindergartens have a prepared program for the prevention of legionellosis and have a defined low risk assessment. In three kindergartens they have been carrying out regular control of the presence of Legionella since 2019, in other kindergartens they are not doing so. All considered objects were in the past microbiologically colonized colonized with the bacterium Legionella spp. Discussion and conclusion: Knowledge of the area of the responsible person plays an essential role in managing microbiological risk. In the past, in the kindergartens where the state of the hot water supply network is monitored, was the system inconsistent and no corrective measures were taken. With the transposition of Directive (EU) 2020/2184 into the Slovenian legal order, the situation in this area will not change significantly. Given the limited size of the participants, it is difficult to single out the water supply systems that are most effective. Research in this area would be needed, taking into account influencing factors. The impact of the embedded material on the level of microbiological colonization of the hot water supply network could not be determined. The objectives of the research were partially achieved.
Sekundarne ključne besede: master's theses;sanitary engineering;technical regulations;house water supply network;installed materials;legionellosis prevention plan;Legionella;
Vrsta dela (COBISS): Magistrsko delo/naloga
Študijski program: 0
Komentar na gradivo: Univ. v Ljubljani, Zdravstvena fak., Oddelek za sanitarno inženirstvo
Strani: 61 str., [2] str. pril.
ID: 15098300