|
| |
|
|
Solidifikace ionesu s přídavkem dastitu v geopolymerné matrici
Černoušek, T. ; Hendrych, J. ; Sobek, Jiří
Solidification of ion exchange resins is specific in comparison to other liquid and solid RAW for all that use geopolymers, cements or other inorganic matrix. In contact with water the unsaturated ion exchange resin the swelling occures and internal pressure arises, and can reach up to 50 MPa. These changes can disrupt the process of solidification, cause cracks, which finally deteriorate the solidificate leaching parameters and lead to a decrease weight ratio of ion exchange resin to binder. To increase the loading capacity of ion exchange resin into the geopolymer the additive representing highly absorbent material Dastit has been tested, in terms of mechanical properties.
Fulltext: content.csg -  PDF
Plný tet: 025 - PDF
|
|
|
Fuel-energy Properties of Stabilized Sewage Sludge
Pohořelý, Michael ; Durda, Tomáš ; Moško, Jaroslav ; Šyc, Michal ; Kameníková, Petra ; Zach, Boleslav ; Svoboda, Karel ; Hartman, Miloslav ; Beňo, Z. ; Parschová, H. ; Houdková, L. ; Punčochář, Miroslav
The paper summarizes significant fuel-energy and physico-chemical properties of stabilized sewage sludge. Sewage sludge as a fuel is characterized by high proportions of water content, volatile matter content, ash content and a considerable amount of reactive, organic nitrogen (2-5 wt. % of dry matter). In addition to oxygen; silicon, phosphorus, aluminum, iron and calcium are the most abundant elements in the ash from the sludge. The lower calorific value of dry, anaerobically stabilized sewage sludge is 9-12 MJ kg-1 and it corresponds to a low calorific value of lower-class subbituminous coal or lignite.
Fulltext: content.csg - PDF
Plný tet: SKMBT_C22015033110190 - PDF
|
|
| |
|
|
Recovery of Valuable Components from MSWI Bottom Ash
Šyc, Michal ; Kameníková, Petra ; Krausová, A. ; Baloch, T. ; Zach, Boleslav ; Pohořelý, Michael ; Svoboda, Karel ; Punčochář, Miroslav
Municipal solid waste incineration bottom ash contains wide range of valuable components, like ferrous and non-ferrous metals, rare earth elements, glass, ceramics and minerals for construction industry. The composition of bottom ash corresponds to incinerated waste composition and it is variable with respect to plant locality and season. The paper summarizes suitable methods for recovery of valuable components and presents the composition of bottom ash from ZEVO Malešice.
Fulltext: content.csg - PDF
Plný tet: 028 - PDF
|
|
|
Practical Application of Photochemical and Photocatalytic Processes for the Treatment of the Contaminated Water
Mašín, P. ; Žebrák, R. ; Klusoň, Petr ; Šolcová, Olga
This contribution deals with utilization of photochemical H2O2/UVC and photocatalytic TiO2/UV oxidation in pilot scale treatment of the contaminated groundwater and wastewater. Photochemical oxidation was tried on destruction of some compounds from production of aniline (benzene, aniline, nitrobenzene) in groundwater. Photocatalytic oxidation TiO2/UV was tested on destruction of some endocrine disruptors in water outlet from wastewater treatment plant. Both technologies have shown highs efficiencies of pollutant decontamination, photochemical technology H2O2/UVC shows higher efficiency then photocatalytic method.
Fulltext: content.csg - PDF
Plný tet: 048 - PDF
|
guest ::
