Čiščenje in ponovna uporaba zamašenih polimernih membran pri procesu ultrafiltracije

diplomsko delo univerzitetnega študijskega programa

Petra Novina (Author), Mitja Kolar (Mentor), Irena Petrinić (Co-mentor), Darinka Brodnjak-Vončina (Co-mentor)

Abstract

Med naprednejše postopke čiščenja odpadnih oljnih vod sodi uporaba ultrafiltracijskih membran, vendar pa je glavna pomanjkljivost membranskih procesov mašenje membran. V diplomskem delu je prikazan postopek čiščenja ter ponovna uporaba zamašenih polimernih (PAN, GR60PP in UFX-pHt) membran pri procesu ultrafiltracije (UF). Proučevali smo gostoto volumskega toka (J) membran v odvisnosti od vhodnega tlaka (p) in hitrost pretoka (q) v odvisnosti od obratovalnega časa (t) pri različnih vhodnih tlakih. Površinske in strukturne lastnosti membrane pomembno vplivajo na pretok skozi membrano, od tega pa je odvisna tudi zmogljivost filtracijske naprave, zato smo pred in po obdelavi ultrafiltracije ter kemijskem čiščenju membran spremljali naslednje fizikalne parametre: stični kot, pretočni potencial, uporabili pa smo tudi Fourierjevo infrardečo transformacijsko spektroskopijo (FTIR) in vrstično elektronsko spektroskopijo (SEM). Na podlagi vseh analiz smo določili učinkovitost kemijskega čiščenja ter spremembe površinskih lastnosti membran.

Keywords

ultrafiltracija;polimerne membrane;mašenje membran;kemijsko čiščenje;povšinske lastnosti;

Data

Language:	Slovenian
Year of publishing:	2012
Source:	Maribor
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FKKT - Faculty of Chemistry and Chemical Engineering
Publisher:	[P. Novina]
UDC:	544.725:628.1.038(043.2)
COBISS:	16711446
Views:	1614
Downloads:	244
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Cleaning and reuse of fouled polymeric membranes in ultrafiltration process
Secondary abstract:	One of the most progressive way of wastewater cleaning is the use of ultrafiltration membranes, but the main disadvantage of the process is membrane fouling. In these thesis the cleaning of fouled polymeric membranes (PAN, GR60PP, UFX-pHt) and their reuse within ultrafiltration (UF) process is presented. The membrane flux (J) in dependance of input pressure (p) was studied as well as the flow rate (q) in dependance of operating time (t) at different input pressures. Surface and structural properties of membrane are very important for their flow velocity, which defines the capacity of filtration device. Therefore, before and after UF, and also after chemical cleaning physical parameters as contact angle, and streaming potential were analyzed, and also Fourier transform infrared spectroscoppy (FTIR) and Scanning Electron Microscopy (SEM) were used. Considering the results of these measurements the chemical cleaning efficiency and membrane surface behaviour were determined.
Secondary keywords:	ultrafiltation;polymer membranes;fouling membranes;chemical cleaning;surface properties;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo
Pages:	X, 79 str.
Keywords (UDC):	mathematics;natural sciences;naravoslovne vede;matematika;chemistry;crystallography;mineralogy;kemija;physical chemistry;fizikalna kemija;chemistry of surface phenomena and colloids;kemija površinskih pojavov in koloidov;applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;engineering;technology in general;inženirstvo;tehnologija na splošno;public health engineering;water;sanitation;illuminating engineering;sanitarna tehnika;zdravstvena tehnika;voda;sanitarne naprave;svetlobna tehnika;water supply;water treatment;water consumption;oskrba z vodo;priprava vode;uporaba vode;
ID:	1026756