Primjena uronjivih ultrafiltracijskih membrana u obradi otpadne vode od pranja pješčanih filtera

master's thesis

• Title (english): Application of immersed ultrafiltration membranes at spent filter backwash water treatment
• Author: Vladimira Cvjetičanin
• Mentor: Ivan Mijatović (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Food Engineering); Zagreb
• Defense date and country: 2011-12-08, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

Pratio se rad pilot postrojenja s uronjivim ultrafiltracijskim membranama gdje su se obrađivale otpadne vode od pranja brzih filtra iz tehnološkog procesa proizvodnje vode za piće. Cilj rada bio je ispitati mogućnost ponovne uporabe otpadne vode u svrhu ponovnog pranja filtra. Sustav se pratio on-line putem u periodu od 29 dana tijekom kojeg se nije pristupalo čišćenju membrana. Membrana je imala stabilna filtracijska svojstva – TMP, permeabilnost i fluks. Kakvoća obrađene vode je udovoljila standarde vode za piće za sve parametre koji su se određivali te nije odstupala unatoč oscilacijama kakvoće sirove vode iz reaktora. Mutnoća, kao jedan od najvažnijih pokazatelja, gotovo je u potpunosti uklonjenja. UF se pokazala pogodnom, učinkovitom i pouzdanom tehnologijom u obradi otpadne vode od pranja brzih pješčanih filtra, a obrađena voda mogla bi se ponovno primijeniti u istu svrhu.

Abstract (english)

Performance of a pilot plant consisted of immersed ultrafiltration (UF) membranes for treating spent filter backwash water from production process of potable water was observed. Purpose of this study was to examine the possibility of reusing spent filter backwash water in order to re-wash the filter.The system was monitored with out cleaning the membrane in duration of 29 days. The membrane had stable filtration properties – TMP, permeability and flux. The qualities of treated water meet the standards for drinking water. All the physico-chemical parameters that were determined did not differ, despite the fluctuations in the quality of raw water. Turbidity, as one of the most important indicator, was almost totally removed. UF has proven to be suitable, efficient and reliable technology for the treatment of backwash water from rapid sand filtration and treated water could be used for re-wash the filter.

• Keywords: mutnoća; uronjiva membrana; otpadna voda od protustrujnog pranja filtra
• Keywords (english): turbidity; immersed membrane; spent filter backwash water
• Language: croatian
• URN:NBN: urn:nbn:hr:159:076324
• Study programme: Title: Food Safety Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka upravljanja sigurnošću hrane (magistar/magistra inženjer/inženjerka upravljanja sigurnošću hrane)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-06-01 10:38:36