No (1138)
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1138
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Possibilities of using sewage sludge as a secondary source of phosphorus in the Czech Republic.
Václavková, Šárka; Zach, Boleslav; Kerberová, V.; Krejčí, T.; Krňávek, M.; Maléř, P.; Špaková, M.; Vojtová, I.
2019 - Czech
A result of the project Possibilities of using sewage sludge as a secondary source of phosphorus in the Czech Republic is a comprehensive study mapping not only the phosphorus content but also the degree of contamination of sewage sludge from various types of wastewater treatment plants in the Czech Republic. This study represents a basis for planning site-specific strategies for the use of phosphorus from sewage sludge in the Czech Republic. Six basic steps led to the elaboration of the study: analysis of the WWTP network in the Czech Republic (1), repeated sampling, analysis of sludge and evaluation of sludge properties of sludges collected from selected facilities representing typical representatives of the nature of source areas and wastewater treatment and sludge treatment technologies (2), legislative analysis of the future of sewage sludge management (3), tests of thermal treatment of sludge and their evaluation (4), search of available technological solutions for sludge treatment (5) and proposal of the concept of sludge treatment in the Czech Republic (6). V rámci projektu Možnosti využití čistírenských kalů jako sekundárního zdroje fosforu v ČR byla zpracována ucelená studie mapující nejen obsah fosforu ale i míru kontaminace v kalech z typově různých zařízení na čištění odpadních vod v ČR. Tato studie představuje odborný základ pro plánování lokálně specifických strategií využití fosforu z čistírenských kalů v ČR. Ke zpracování studie vedlo šest základních kroků, a to: analýza sítě ČOV v ČR (1), opakované odběry, analýzy kalů a zhodnocení vlastností kalů z vybraných zařízení představujících typické zástupce z pohledu charakteru zdrojových oblastí i použitých technologií čištění odpadních vod a úpravy kalu (2), legislativní rozbor budoucnosti nakládání s čistírenskými kaly (3), zkoušky termického zpracování kalů a jejich vyhodnocení (4), rešerše dostupných technologických řešení pro nakládání s kaly (5) a návrh koncepce zacházení s kaly v ČR (6).
Keywords:
sewage sludge; phosphorus recycling; czech republic
Available at various institutes of the ASCR
Possibilities of using sewage sludge as a secondary source of phosphorus in the Czech Republic.
A result of the project Possibilities of using sewage sludge as a secondary source of phosphorus in the Czech Republic is a comprehensive study mapping not only the phosphorus content but also the ...
Direct Decomposition of NO Over Co-Mn-Al Mixed Oxides: Effect of Ce and/or K Promotors.
Jirátová, Květa; Pacultová, K.; Karásková, K.; Balabánová, Jana; Klegová, A.; Obalová, L.
2019 - English
In this contribution, the effect of K and/or Ce on activity of Co-Mn-Al mixed oxides was stud-ied, as presence of Ce could increase mobility of oxygen in the transition metals oxides.\n
Keywords:
Co-Mn-Al; catalysts; metals oxides
Available at various institutes of the ASCR
Direct Decomposition of NO Over Co-Mn-Al Mixed Oxides: Effect of Ce and/or K Promotors.
In this contribution, the effect of K and/or Ce on activity of Co-Mn-Al mixed oxides was stud-ied, as presence of Ce could increase mobility of oxygen in the transition metals oxides.\n
Laboratory Pyrolysis Experiments of Barley and Wheat Pelletized Straw Samples, Sludge and Biomass Pellet Samples.
Pohořelý, Michael; Skoblia, S.; Beňo, Z.; Hartman, Miloslav
2018 - Czech
In the report there are results of laboratory pyrolysis analysis of barley and wheat pelletized straw samples and sludge and biomass pellet samples. Ve zprávě jsou výsledky laboratorních pyrolýzních testů peletizované ječmenné a pšeničné slámy a vzorku peletizovaného kalu a biomasy.
Keywords:
biomass; pyrolysis; biochar
Available at various institutes of the ASCR
Laboratory Pyrolysis Experiments of Barley and Wheat Pelletized Straw Samples, Sludge and Biomass Pellet Samples.
In the report there are results of laboratory pyrolysis analysis of barley and wheat pelletized straw samples and sludge and biomass pellet samples.
Mesoporous Polymers Created by and Their Application.
Soukupová, Krasimira; Jeřábek, Karel
2018 - English
Keywords:
polymer; mesopores; microsyneresis
Available at various institutes of the ASCR
Mesoporous Polymers Created by and Their Application.
A microreactor study for gas-phase catalytic oxidation, stage 6 and 7
Stavárek, Petr; Jiřičný, Vladimír; Hejda, Stanislav
2018 - Czech
Report describes the adaptation of the experimental apparatus for the installation of the microreactor for the second reaction step for the gas-phase catalytic oxidation. Zpráva se zabývá úpravou stávající laboratorní aparatury a instalací mikroreaktoru pro 2. reakční stupeň pro katalytickou oxidaci v plynné fázi.
Keywords:
microreactor apparatus; catalytic oxidation; gas
Available at various institutes of the ASCR
A microreactor study for gas-phase catalytic oxidation, stage 6 and 7
Report describes the adaptation of the experimental apparatus for the installation of the microreactor for the second reaction step for the gas-phase catalytic oxidation.
Material and Energy Utilization of Stabilized Sewage Sludge by Carbonization Process.
Pohořelý, Michael
2018 - Czech
The lecture discusses sewage sludge disposal situation in EU. It further focuses on the sludge pyrolysis as an alternative method for the sludge utilization on agricultural soil. Příspěvek se zabývá problematikou využití čistírenských kalů a pyrolýzou jako vhodným alternativním způsobem pro využívání kalů na zemědělskou půdu.
Keywords:
sewage sludge; pyrolysis; carbonization process
Available at various institutes of the ASCR
Material and Energy Utilization of Stabilized Sewage Sludge by Carbonization Process.
The lecture discusses sewage sludge disposal situation in EU. It further focuses on the sludge pyrolysis as an alternative method for the sludge utilization on agricultural soil.
Microreaction Preparation of Chemical Specialties by Stereoselective Hydrogenation in the Presence of Ionic Liquids.
Hejda, Stanislav; Stavárek, Petr; Klusoň, Petr; Vychodilová, Hana; Vlček, Dalibor; Bendová, Magdalena
2018 - Czech
Keywords:
microreaktor; ionic liquid; hydrogenation
Available at various institutes of the ASCR
Microreaction Preparation of Chemical Specialties by Stereoselective Hydrogenation in the Presence of Ionic Liquids.
WorkPprogress Report and Achievements for 2018.
Jirsa, P.; Vlček, J.; Veselý, Václav
2018 - Czech
It was designed by SMS CZ demonstration unit for which basic functional tests have been performed. Operational data and protocols from the basic unit testing are presented. Small modifications of heat exchanger have been proposed. It is expected to propose fuel dosage control with regard to operator level and operation conditions. Na základě primárních testů na VŠB byla zkonstruována společností SMS CZ s.r.o. demonstrační jednotka, u které byly provedeny základní funkční zkoušky. Jsou prezentovány provozní data a protokoly z průběhu základního testování mobilní jednotky. Byly navrženy malé úpravy výměníku tepla. Předpokládá se návrh řízení dávkování paliva s ohledem na úroveň a podmínky obsluhy.
Keywords:
demonstration unit; testing; fuel dosage
Available at various institutes of the ASCR
WorkPprogress Report and Achievements for 2018.
It was designed by SMS CZ demonstration unit for which basic functional tests have been performed. Operational data and protocols from the basic unit testing are presented. Small modifications of heat ...
Synthesis and Functionalization of Phenacenes Containing δ-Lactam Ring.
Váňa, Lubomír; Církva, Vladimír; Pfleger, Jiří; Storch, Jan
2018 - English
This work is aimed at the development of a new efficient methodology towards the synthesis of various aza[5]phenacenes containing δ-lactam ring in their structure. Possibilities of their functionalization or derivatization are also discussed, along with complexation properties of suitable aza-derivatives as ligands in transition-metal complexes. The resulting compounds are investigated in terms of their material properties, especially for the formation of thin film structures capable of an efficient semi-conductivity or their potential application as photoluminescent complexes in OLEDs.
Keywords:
phenacene; lactam; organic electronics
Available at various institutes of the ASCR
Synthesis and Functionalization of Phenacenes Containing δ-Lactam Ring.
This work is aimed at the development of a new efficient methodology towards the synthesis of various aza[5]phenacenes containing δ-lactam ring in their structure. Possibilities of their ...
Laboratory Separation of Methanol from the Azeotropic Mixture (25 wt% Methanol and 75 wt% trimethylborate.
Gaálová, Jana; Vojtek, Lukáš; Izák, Pavel
2018 - Czech
The work deals with laboratory separation of methanol from the azeotropic mixture (25 wt% methanol and 75 wt% trimethylborate). Four different manufactured membranes were tested. For all except one separation, separation was more or less successful. With PVA 4155-80 / 2871 the separation proceeded with good results, but very slowly, a condition that could increase the reaction rate could be an increase of temperature. Most selective membrane from Sulzer was PDMS 4155 -30/305 R, which separated MeOH with high efficiency and fast enough. The completely opposite effect than pervious membranes had the membrane PDMS 4060, which instead of MeOH separated Trimethylborate. Práce se zabývá laboratorní separací methanolu z azeotropické směsi (25 wt% methanol a 75 wt% trimethylborát). Byly testovány 4 různé průmyslově vyráběné membrány. U všech kromě jedné separace probíhala více méně úspěšně. U PVA 4155-80/2871 separace probíhala s dobrými výsledky, ale velice pomalu, podmínkou, která by mohla zvýšit rychlost reakce by mohlo být zvýšení teploty. Nejlépe z membrán od společnosti Sulzer dělila PDMS 4155 -30/305 R, která separovala MeOH s vysokou účinností a také dostatečně rychle. Naprosto opačný efekt pak měla membrána PDMS 4060, která místo MeOH separovala Trimethylborát.
Keywords:
methanol; separation; membranes
Available at various institutes of the ASCR
Laboratory Separation of Methanol from the Azeotropic Mixture (25 wt% Methanol and 75 wt% trimethylborate.
The work deals with laboratory separation of methanol from the azeotropic mixture (25 wt% methanol and 75 wt% trimethylborate). Four different manufactured membranes were tested. For all except one ...
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