期刊
JOURNAL OF WATER PROCESS ENGINEERING
卷 42, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jwpe.2021.102100
关键词
Surface water treatment; Aquaporin; Reinforced hollow fiber membranes; Thin film composite membranes; Titanium dioxide
资金
- TUBITAK (The Scientific and Techno-logical Research Council of Turkey) [113Y359]
The study evaluates four types of hollow fiber nanofiltration membranes for surface water treatment, with reinforced Aquaporin membrane showing the highest productivity and TiO2 incorporated membrane having the highest initial flux. Reinforced thin film composite membranes demonstrated the highest removal rates for various water constituents. Overall, the study highlights the practicality and potential of hollow fiber nanofiltration membranes in surface water treatment applications.
Four types of hollow fiber nanofiltration membranes were fabricated and tested during pilot scale treatment of surface water taken from Istanbul center dot Omerli Lake Reservoir. Membrane types included: polymer thin film composite, reinforced thin film composite, TiO2-polymer thin film nanocomposite, and Aquaporin-polymer reinforced thin film composite. Interfacial polymerization procedure was used to form the polyamide separation layer for all membrane types. The amount of permeate water collected from membranes was controlled by membrane fouling. In terms of productivity, the membranes were ranked as follows: reinforced Aquaporin membrane (6.30 L/m2/h) > TiO2 incorporated membrane (5.69 L/m2/h) > reinforced thin film composite membrane (4.76 L/m2/h) > polymeric thin film composite membrane (3.24 L/m2/h). TiO2-incorporated membranes had the highest initial flux while reinforced thin film composite membranes had the highest removals for each water constituents tested (MgCl2, tannic acid, synthetic lake water, pre-filtered lake water). The study points to the practicability and promise of hollow fiber nanofiltration membranes for surface water treatment applications.
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