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Adsorption of rare earth elements on novel “Mg-Al layered double hydroxide with gum arabic”
(2018)
In the last few decades, the demand for rare earth elements has increased, as there have been further discoveries for their use. Rare earth elements are used for very specific applications and can be extracted from different ...
Recycling of cellulose-dissolving ionic liquids
(2018)
Production of wood-based cellulosic textile fibres is currently under intensive research. One of the most promising techniques to produce such fibres is the direct dissolution of cellulose by ionic liquid solvents. A crucial ...
Selective recovery of indium from secondary resources by iminodiacetic acid chitosan
(2019)
Indium demand has escalated drastically in the last few decades, due to the technological advancement and the introduction of the high-tech products such as Liquid Display Panels and the mobile device; this demand is not ...
Arvokkaiden metallien talteenotto elektroniikkajätteestä 3D-tulostetuilla kappaleilla
(2019)
Arvokkaiden tai muuten strategisesti tärkeiden alkuaineiden maailman malmivarantojen ehtyessä on vihdoin alettu havahtua niiden talteen ottamisen ja kierrättämisen tärkeydestä. Tässä työssä tutkittiin lähinnä arvokkaiden ...
Removal of pharmaceuticals from water using modified biochar
(2022)
The production of microalgae in wastewater is a sustainable method to obtain microalgal biomass because it biofixes carbon while remediating wastewater. The microalgae can then be pyrolyzed to produce valuable products ...
Additively manufactured nylon-12 adsorbent for gold recovery
(2020)
Gold is a non-renewable metal which is widely scattered in nature. Currently, gold mining is a major gold production route, however, this industry is very expensive and causes environmental issues. Methods applied for ...
Typpi- ja puuperäiset maanparannusaineet
(2020)
Biologisen monimuotoisuuden kehitys pakottaa teollisuusyritykset kehittämään jatkuvasti tehokkaampia tapoja käsitellä ja hävittää jätteitä ja sivutuotteita. Paperiteollisuus tuottaa erilaisia sivuvirtoja, joita voidaan ...
Activated carbon filtration of electrolyte solutions
(2021)
The purpose of this thesis was to study activated carbon filtration. In the literature part, the properties and applications of activated carbon and basic principles of activated carbon filtration were studied. The study ...
Hydrothermal carbonization in wood industry sidestreams
(2018)
The main goal of this research project is to study opportunities of Hydrothermal carbonization (HTC) method to treat pulp & paper process sewage streams. HTC is a thermochemical conversion method of organic compounds in ...
Removal of pharmaceutical compounds by adsorption
(2022)
The aim of this work was to evaluate the efficiency of two activated carbons and sawdust adsorbents in the removal of selected pharmaceutical compounds. The efficiency with which these adsorbents removed pharmaceuticals ...