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Publikācija: Structural Investigation of Alkali Activated Clay Minerals for Application in Water Treatment Systems

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Nosaukums oriģinālvalodā Structural Investigation of Alkali Activated Clay Minerals for Application in Water Treatment Systems
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.1. Būvniecības un transporta inženierzinātnes
Autori Ģirts Būmanis
Diāna Bajāre
Laura Dembovska
Atslēgas vārdi .
Anotācija Alkali activation technology can be applied for a wide range of alumo-silicates to produce innovative materials with various areas of application. Most researches focuse on the application of alumo-silicate materials in building industry as cement binder replacement to produce mortar and concrete [1]. However, alkali activation technology offers high potential also in biotechnologies [2]. In the processes where certain pH level, especially alkaline environment, must be ensured, alkali activated materials can be applied. One of such fields is water treatment systems where high level pH (up to pH 10.5) ensures efficient removal of water pollutants such as manganese [3]. Previous investigations had shown that alkali activation technology can be applied to calcined clay powder and aluminium scrap recycling waste as a foam forming agent to create porous alkali activated materials. This investigation focuses on the structural investigation of calcined kaolin and illite clay alkali activation processes. Chemical and mineralogical composition of both clays were determined and structural investigation of alkali activated materials was made by using XRD, DTA, FTIR analysis; the microstructure of hardened specimens was observed by SEM. Physical properties of the obtained material were determined. Investigation indicates the essential role of chemical composition of the clay used in the alkali activation process, and potential use of the obtained material in water treatment systems.
DOI: 10.1088/1757-899X/96/1/012002
Atsauce Būmanis, Ģ., Bajāre, D., Dembovska, L. Structural Investigation of Alkali Activated Clay Minerals for Application in Water Treatment Systems. IOP Conference Series: Materials Science and Engineering, 2015, Vol.96, Iss.1, 1.-9.lpp. ISSN 1757-8981. e-ISSN 1757-899X. Pieejams: doi:10.1088/1757-899X/96/1/012002
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ID 21659