Biomimetic membranes for forward osmosis application in industrial wastewater treatment

doctoral dissertation

Jasmina Korenak (Author), Irena Petrinić (Mentor), Claus Hélix-Nielsen (Co-mentor)

Abstract

The problem of wastewater is increasing as we face tighter regulations in limiting parameters for discharge into sewers or surface waters. At the same time, the challenge is also how to upgrade existing technology and identify new appropriate technologies for purification of industrial wastewater for re-use. The optimal solution, which can give the appropriate quality of purified water at acceptable operating costs also is not straightforward. However, increasing environmental legislative demands combined with increased fresh water consumption can facilitate implementation of emerging technologies which at the current state are not fully mature. Forward Osmosis (FO) is one such recent achievement which is considered as a promising membrane process and potentially a sustainable alternative to reverse osmosis (RO) process for wastewater reclamation and sea/brackish water desalination. However, there are many limiting parameters (e.g. membrane fouling, draw solutions) in FO process that needs to be studied and improved. To reduce the membrane fouling in FO, many improvements were attempted, e.g. synthesis of different membrane materials, fabrication of membrane modules, membrane coating etc. One of the novelties in membrane development research field is biomimetic membranes incorporate in separation processes. They employ natural proteins known as AQPs (aqpourins) to regulate the flow of water, providing increased permeability and near-perfect solute rejection. Membrane surface characteristics were measured on virgin, used and cleane membrane in order to confirm the resistance to different types of industrial wastewater and sewage.

Keywords

biomimetic membrane;forward osmosis;industrial wastewater;reverse osmosis;textile wastewater;ultrafiltration;wastewater reuse;

Data

Language:	English
Year of publishing:	2018
Typology:	2.08 - Doctoral Dissertation
Organization:	UM FKKT - Faculty of Chemistry and Chemical Engineering
Publisher:	[J. Korenak]
UDC:	66.081.63:628.161(043.3)
COBISS:	21593366
Views:	1280
Downloads:	95
Average score:	0 (0 votes)
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Other data

Secondary language:	Slovenian
Secondary title:	Biomimetične membrane za proces osmoze pri obdelavi industrijske odpadne vode
Secondary abstract:	Vedno bolj strožji predpisi za odvajanje odpadnih voda v kanalizacijo ali površinske vode prestavljajo vedno večji problem industriji. Poleg omenjenega, pa je tudi izziv kako nadgraditi obstoječo tehnologijo in najti ustrezno alternativo za možnost ponovne uporabe odpadne vode. Najti optimalno rešitev, ki omogoča ustrezno kakovost prečiščene vode po sprejemljivih obratovalnih stroških, ni enostavna. Kljub temu pa strožja okoljska zakonodaja skupaj s stroški sveže vode spodbuja pri izpopolnjevanju alternativnih tehnologij. Proces osmoze (FO) se v zadnjem času vedno bolj uveljavlja kot obetajoč membranski proces in potencialno trajnostna alternativa procesu reverzne osmoze (RO) pri obdelavi odpadne vode in razsoljevanju morske vode/somornice. Kljub vsemu pa še vedno obstajajo nekatere tehnološke pomanjkljivosti glede selektivnosti, permeabilnosti in energetske učinkovitosti. Velik napredek je bil narejen v smeri odprave mašenja membrane, saj so z uporabo različnih materialov membrane, membranskih modulov ter nadgrajevanja površine membrane bistveno zmanjšali mašenje por. Ena od novosti na področju razvoja membran je uporaba biomimetičnih membran pri separacijskih procesih. Te membrane imajo vgrajene proteine, znane kot AQPs (akvaporine), da uravnavajo pretok vode, kar zagotavlja večjo prepustnost in skoraj popolno zadržanje soli. Narejena je bila karakterizacija površine membrane na novi, uporabljeni in očiščeni membrani, da bi potrdili odpornost na industrijske in komunalne odpadne vode.
Secondary keywords:	biomimetične membrane;industrijske odpadne vode;osmoza;ponovna uporaba odpadne vode;reverzna osmoza;tekstilne odpadne vode;ultrafiltracija;doktorske disertacije;Odpadne vode;Disertacije;Čiščenje;
URN:	URN:SI:UM:
Type (COBISS):	Doctoral dissertation
Thesis comment:	Univ. v Mariboru, Fak. za kemijo in kemijsko tehnologijo
Pages:	XVII, 121 str.
ID:	10925719