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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 ...
Analysis of cyanide in mining waters
(2018)
Cyanide, as a chemical compound, can be found in the effluents of numerous industries, particularly mining. The toxicity and concentration control of cyanide during gold and silver extractions necessitate the precise ...
Kemiantekniikan tarjoamat ratkaisut mikromuovien aiheuttamaan vesistöjen saastumiseen
(2018)
Mikromuoveja päätyy vesistöihin useita eri reittejä, ja niiden poistaminen vesistöistä on miltei mahdotonta. Mikromuovit voivat sisältää makromuovien tavoin vaarallisia kemikaaleja, kuten pehmentimiä, väriaineita ja ...
EM-mutapallon rakennekomponenttien roolit ravinteiden poistossa
(2018)
EM-teknologialla pyritään tehostamaan vesiekosysteemien omaa, luonnollista itsepuhdistuskykyä ja tällä tavoin parantamaan niiden ekologista tilaa. Yksi vesien puhdistamiseen käytettävä EM-teknologian sovellus on ...
Biohiilen käyttö suodattimissa
(2018)
Biohiili on uusi ja uusiutuva vaihtoehto veden puhdistukseen. Biohiiltä voidaan käyttää suodattimena suodattamaan muun muassa hulevesiä tai suoto- ja valumavesiä. Biohiili pystyy teorian mukaan huokoisuutensa avulla ...
Environmentally harmful substances in wastewater of Rauma forest industry area
(2018)
Because of the demands set by the environmental authorities and the legislation, the study of environmentally harmful and hazardous substances was carried out in the Rauma forest industry area and in the biological wastewater ...
Electrochemical water treatment and filtration of generated slurries
(2018)
This work is focused on the electrocoagulation (EC) as an electrochemical water treatment process followed by solid-liquid separation of the solid species, which form during the treatment. In the theory part of the thesis, ...
Photocatalytic degradation of benzophenone 3 in aqueous media under UV light irradiation
(2018)
Benzophenone-3 (BP-3), an organic UV filter widely used in sunscreen and other personal care products, has been detected at several ppm level in surface and ground water, which could significantly affect the human health ...
Evaluation of CTMP mill wastewaters and handling methods
(2018)
The aim of this work was to evaluate the characteristics of chemithermomechanical pulp (CTMP) mill wastewaters and their impact to the selection of the treatment method. Target for this work was to find out what kind of ...
Influence of the addition of acetate as an external carbon and energy source in phenol conversion rate in an AnMBR under salinity and mesophilic conditions
(2018)
The toxic nature of the phenolic compounds together with high salinity contents in industrial wastewaters affect directly its treatment efficiency by biological processes. Anaerobic biodegradability of highly saline phenolic ...