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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 ...

Työn tavoitteena on selvittää Nesteen Porvoon jalostamolla olevan vetykrakkaus-yksikön (VK) kiertokaasukompressorin toimintapiste, sekä tutkia mittalevyillä tehtävän virtausmittauksen virhearviota. Kompressorin toimintapisteen ...

Non-wood-kuituja on käytetty paperin valmistuksessa jo tuhansia vuosia. Ensimmäiset paperit valmistettiin muun muassa pellavasta, hampusta ja oljesta. Puun kuidutusmenetelmien kehittymisen myötä on non-wood-kuitujen ...

Tight NOx limits set by the regulatory authorities have necessitated the suppliers of NOx removal technologies to consider the cost-effective alternatives for their industrial customers. The objective of the master thesis ...

Purpose of this master’s thesis work was to improve enzyme recovery and cleaning protocol of microfiltration process at Genencors plant in Jämsänkoski. Also, waste streams produced were evaluated. Literature review of this ...

Aim of this master’s thesis was to study most efficient separation methods for wastewater produced by plastic company. Especially, there has been contaminants in Pilot plant wastewater. The main contaminants in wastewater ...

The aim of this thesis was to examine the efficiency of CO2 capture by means of hollow-fiber membranes using potassium glycinate as the absorbent. The literature part presents the background for the thesis, conventional ...

This Thesis focuses on extractive separation of metal impurities from solution typical for hydrometallurgical nickel plants, containing nickel and cobalt. The research combines various experiments of residue metal extraction ...

Environmental and acceptance risks related to water discharge together with raw water scarcity at mineral processing plants and their surroundings demand the implementation of correct measurements to reduce water consumption. ...

Tämän työn tarkoituksena oli laatia teknoekonominen analyysi laitokselle, joka uuttaa kauraöljyä kaurahiutaleista käyttäen puhdasta ylikriittistä hiilidioksidia. Työssä tehtiin kirjallisuusselvitys yleisesti kaurasta ja ...