@phdthesis{Gaydardzhiev2006, author = {Gaydardzhiev, Stoyan}, title = {Upon the characterization of destabilization and stabilization phenomena in fine particulate systems - implications to physicochemical removal of colour from effluents and colloidal processing of ceramics}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus-3471}, school = {BTU Cottbus - Senftenberg}, year = {2006}, abstract = {The work is dedicated to the aspects of characterization of surface charge phenomena in two colloidal systems: synthetic mixtures of textile dyes and aqueous suspension of ceramic powders. An implication to the areas of physicochemical colour removal from textile effluents and gel-casting of ceramics is made. A model for dye-coagulant interaction has been developed based on surface charge density and floc size investigations. Various dispersant optimization techniques have been compared in stabilizing aqueous slurries of ultra-fine alumina particles, the zeta potential derived from CVI measurements being viewed as a most reliable one. The chemical environment of the ceramic slurry together with maintaining an optimal process conditions in gel-casting plays an equally important role in providing a desired properties of complex shaped ceramic bodies.}, subject = {Keramik; Farbstoff; Feinpartikelsysteme; Stabilisierung; Keramik; Farbstoffabbau; Fine particulates; Stabilization; Ceramics; Dye effluents}, language = {en} }