Browsing Engineering (Faculty of) by Supervisor "Feng, Xianshe"
Now showing items 1-15 of 15
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Alkaline Treatment of Chitosan Membranes
(University of Waterloo, 2022-03-22)Derived from deacetylation of chitin, which is one of the most abundant natural polymers, chitosan has been drawing extensive attention due to its outstanding properties, and potential in many applications in the forms of ... -
Applications of Polyvinylamine in Removal of Heavy Metals from Wastewater by Polymer-Enhanced Ultrafiltration and Adsorption
(University of Waterloo, 2016-01-14)In this study, water-soluble polyvinylamine (PVAm) was used as chelating agent for heavy metal removal from wastewater by polymer-enhanced ultrafiltration (PEUF). The effects of parameters involved in the ultrafiltration ... -
Desalination of high-salinity water by membranes
(University of Waterloo, 2016-05-12)This study deals with the desalination of high-salinity water using membranes by pervaporation. The membrane performance was characterized with water flux and salt rejection. It was shown that a water flux of 1.6 kg/m²h ... -
Development of oleophilic membranes for volatile organic compound and nitrogen separation
(University of Waterloo, 2022-03-14)Volatile organic compounds (VOCs) are the foremost hazardous pollutants in the air. VOC emissions have significant effects on the environment and human health. Membrane separation, as an excellent technology for VOC removal ... -
Extraction and Concentration of Glutathione from Yeast
(University of Waterloo, 2018-09-19)Glutathione is a tripeptide present in most mammalian tissue. It has a great variety of significant physiological functions, such as regulating cell growth and division; helping DNA synthesis and repair. Glutathione can ... -
Poly(ether block amide)-based Composite Membranes for Carbon Capture
(University of Waterloo, 2020-01-17)A great amount of anthropogenic CO2 emissions has caused the greenhouse effect which impacts the living environment of creatures on the planet. Effective carbon capture technologies need to be developed to reduce CO2 emissions. ... -
Polydopamine-Based Thin Film Composite Membranes for Pervaporative Concentration of Potassium Acetate Solution
(University of Waterloo, 2022-12-19)Potassium acetate (KAc) is a valuable chemical product due to its widespread application in multiple fields. During the production of KAc, the concentration of dilute KAc solution is a vital pre-treatment procedure to ... -
Recovery of Dairy Aroma Compounds and Concentration of Dairy Solutions by Membranes
(University of Waterloo, 2018-05-25)This study explores the potential of using different types of poly(ether block amide) (PEBA) membranes for recovering aroma compounds from dairy solutions and concentration of dairy products by membrane processes. The ... -
Removal of Bromophenols from Wastewater by Sorption
(University of Waterloo, 2018-09-20)Poly(ether-block-amide) copolymer (PEBA) was used as an adsorbent for sorptive removal of bromophenols, particularly 4-bromophenol (BP), 2,6-dibromophenol (DBP), and 2,4,6-tribromophenol (TBP) from wastewater. Batch sorption ... -
Removal of N,N-dimethylacetamide from water by adsorption
(University of Waterloo, 2017-05-24)Discharge of untreated industrial effluents containing N,N-dimethylacetamide (DMAc) is hazardous to the environment. This study explores the separation of DMAc from wastewater using adsorption on activated carbons. In ... -
Reverse Osmosis Desalination and Hybrid Membrane Processes for Brine Treatment
(University of Waterloo, 2019-12-11)Waste from seawater reverse osmosis desalination processes is commonly referred to as brine which is one of the obstacles creating environmental and economic inefficiencies. The objective of this work is to simulate the ... -
Reverse Osmosis Membranes for Desalination of Brackish Water
(University of Waterloo, 2020-12-22)Reverse osmosis (RO), which is commonly used for different water purification and desalination applications, is a remarkable process to separate dissolved inorganic and organic compounds from water. Over traditional methods ... -
Separation of Phenols and Aniline from Water Streams using Poly(ether-block-amide) Membranes
(University of Waterloo, 2021-10-14)Phenols and aniline are aromatic compounds in which a hydroxyl group and amine group are attached to the benzene ring, respectively. Both are common organic pollutants in a wide range of effluents from such industries as ... -
Sorptive separation of phenolic compounds from wastewater
(University of Waterloo, 2017-04-28)This study explores the potential of using PEBA as a sorbent for removing phenolic compounds from wastewater. The sorption isotherms of phenol, 4-chlorophenol (4-CP), 4-nitrophenol (4-NP), 4-methylphenol (4-MP) and catechol ... -
Thin film composite membranes via layer-by-layer assembly for pervaporation separation
(University of Waterloo, 2019-12-06)The aim of this study was to develop LbL membranes based on polyethyleneimine and graphene oxide (PEI/GO) and to investigate them for three different applications, namely the pervaporative desalination of high-salinity ...