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Exoposure of Citizen and Emplyee of Municipal Transport to Polycyclic Aromatic Hydrocarbons (PAHs) Contained in the Atmosphere at Travelling in Prague
Tydlitát, Vratislav; Kotlík, B.; Mikešová, M.
2009 - Czech
Concentration of PAHs, the number of aerosol particles of wide size spectrum, mass content of PM10 , PM2,5 and microclimatic parameters in atmosphere of Prague tram were measured in november 2008 and may 2009 on ost/west and south/nord lines. Concentration of PAHs TEFs does not overstep 30% over recomended limit 1ng.m-3. Mean concentration of PM10 during 8 hours oversteps permitted limit 50 g.m-3 more than three times, at PM2,5 oversteps the limit two times. At pollution asserts oneself emissions from vehicles at frequent parallel tram lines and transport lines. It is estimate the measure of exposure of the participant of tram tarffic to polycyclic aromatic hydrocarbons and to aerosole particles . PM10 , PM2,5 a PM1. Při znečištění se uplanují emise z vozidel při častém souběhu tramvajové linky a dopravní komunikace. Je odhadnuta míra exposice účastníka tramvajové dopravy polycyklickým aromatickým uhlovodíkem a aerosolovými částicemi PM10, PM2.5 a PM1.
Keywords:
aerosol particles; concentration; atmosphere
Available at various institutes of the ASCR
Exoposure of Citizen and Emplyee of Municipal Transport to Polycyclic Aromatic Hydrocarbons (PAHs) Contained in the Atmosphere at Travelling in Prague
Concentration of PAHs, the number of aerosol particles of wide size spectrum, mass content of PM10 , PM2,5 and microclimatic parameters in atmosphere of Prague tram were measured in november 2008 and ...
Separation of Hydrated Aluminum Oxide during Production of the 26-13S Fertilizer from Ammonium Alum
Jirátová, Květa; Klempa, Jan
2009 - Czech
Conversion of ammonium alum with ammonia without and in the presence of ammonium sulfate was studied. Byla studována konverze kamence amoniakem bez a v přítomnosti síranu amonného.
Keywords:
ammonium alum; ammonia; fertilizer
Available at various institutes of the ASCR
Separation of Hydrated Aluminum Oxide during Production of the 26-13S Fertilizer from Ammonium Alum
Conversion of ammonium alum with ammonia without and in the presence of ammonium sulfate was studied.
Petelyza-Chemical PET Recycling
Veselý, Václav
2009 - Czech
This report treat of selection of clients on chemical recycling process PETELYSE for recycling PET botles. Investment study summarised results of research anad development of technology true to scale 100 kg PET per hour. The technologie is protected by 2 patents. The marketing of produkts is importanr for the investments in recyclation technology. This study treat not of produkt selling and source of PET material Předkládaná studie se zabývá procesem výběru možných investorů pro případný prodej licence technologie na recyklaci PET lahví metodou PETELÝZA. Stav vývoje technologie je shrnut v investiční studii vypracované projekční organizací Chemoprag, s.r.o. Praha. Technologie je chráněna třemi patentovými přihláškami PV 2006-313, PV 2006-550 a PV 2008-602. Pro rozhodování o investici v oboru recyklace je pro investora důležitá znalost zdrojů a odbytů. Tato studie se touto problematikou nezabývá. Právě tak neřeší vývoj inflace.
Keywords:
recycling of PET; economic study
Available at various institutes of the ASCR
Petelyza-Chemical PET Recycling
This report treat of selection of clients on chemical recycling process PETELYSE for recycling PET botles. Investment study summarised results of research anad development of technology true to scale ...
Biodegradation of MTBE in Bubble Free Reactor
Lehnert, Radek
2008 - Czech
This work deals with biodegradation of MTBE in bubble free reactor. Obsahem zprávy je problematika biodegradace MTBE v bioreaktoru s bezbublinovou aerací.
Keywords:
biodegradation; bubble free reactor
Available at various institutes of the ASCR
Biodegradation of MTBE in Bubble Free Reactor
This work deals with biodegradation of MTBE in bubble free reactor.
Mesurement of Bioluminescence of Pseudomonas Fluorescens HK44
Zavázalová, Jana
2008 - Czech
Work deals with mesurement of bioluminescence of Pseudomonas Fluorescens HK44. Měření bioluminiscence Pseudomonas Fluorescens HK44 je obsahem této zprávy.
Keywords:
pseudomonas fluorescens HK44; bioluminiscence
Available at various institutes of the ASCR
Mesurement of Bioluminescence of Pseudomonas Fluorescens HK44
Work deals with mesurement of bioluminescence of Pseudomonas Fluorescens HK44.
Development of the Distiller Grains
Veselý, Václav
2008 - Czech
The development of distiller grains from etanol production. Technological process and analysis of products. Processes are combustion, use of grains for snímal, pyrolysis and partial oxidation for hydrogen and syngas production. Jsou navrženy způsoby využití lihových výpalků. Technologické postupy a analýzy. Jedná se o spalování, kompostování, požití jako krmiva pro zvířata a termické zpracování na vodík. Jsou uvedena bloková schémata pro sušení, pyrolýzu a výrobu syntézního plynu.
Keywords:
distiller grains; technological process; combustion process
Available at various institutes of the ASCR
Development of the Distiller Grains
The development of distiller grains from etanol production. Technological process and analysis of products. Processes are combustion, use of grains for snímal, pyrolysis and partial oxidation for ...
Petelyse-PET Recycling
Veselý, Václav
2008 - Czech
Chemical recycling of PET to terephtalic acid and ethyleneglycol is carried out in two stages through alkaline glykolysis and subsequent hydrolysis. The product of hydrolysis is elektrolicically further separated into terephtalic acid suspense and alkaline glykol solution. Crystallic terephtalic acid separates from the suspense and once washed is dried. Vacuum istilation is applied to get ethylenglycol. Chemická recyklace PET na kyselinu tereftalovou a etylenglykol se provádí ve dvou stupních basickou glykolýzou a následnou hydrolýzou. Vzniklý hydrolyzát se pomocí elektrolýzy dělí na suspenzi kyseliny tereftalové a basický roztok glykolu. Krystalická kyselina tereftalová se oddělí ze suspenze a po promytí se suší. Etylenglykol se získává vakuovou destilací.
Keywords:
terephtalic acid; ethylenglycol; electrolysis
Available at various institutes of the ASCR
Petelyse-PET Recycling
Chemical recycling of PET to terephtalic acid and ethyleneglycol is carried out in two stages through alkaline glykolysis and subsequent hydrolysis. The product of hydrolysis is elektrolicically ...
Report of Remediation of Unground Water by Zero Ialen Iron
Veselý, Václav; Červenka, J.
2008 - Czech
The measurement of kinetic parametrs for underground water contaminated by perchlorethylene. Cast iron was the best material with high eficiency. The column tests was practised. Kinetic model of consecutive reaction was used for design of continuous reactor with zero valent iron bed. Laboratorní měření kinetiky dekontaminace vod obsahující perchloretylen. Testy různých druhů železa prokázaly vysokou účinnost litiny. Byly provedeny kolonové testy. Model postupného odbourávání chlorovaných uhlovodíků se ukázal jako vhodný pro návrh reaktoru.
Keywords:
underground water; kinetic parametrs; perchlorethylene
Available at various institutes of the ASCR
Report of Remediation of Unground Water by Zero Ialen Iron
The measurement of kinetic parametrs for underground water contaminated by perchlorethylene. Cast iron was the best material with high eficiency. The column tests was practised. Kinetic model of ...
Report for the Project Optimization of Supercritical Fluid Extraction for Maximal Yield of Biologically Active Substances from Plants
Sovová, Helena; Sajfrtová, Marie; Pavela, R.; Karban, Jindřich; Bárnet, M.
2008 - Czech
Savory, caraway, peppermint, lavander and ruta were selected out of more than twenty plants as the best resources of biologically active substances soluble in supercritical CO2 and effective against pest insect. Lethal doses and antifeedant activity of plant extracts against four model insect species were evaluated. Chemical composition of isolates was determined using GC and GC-MS. Two novel methods were used to examine relation between the composition and the acute toxicity of isolates. Na základě skríninku více než dvaceti rostlin byly jako nejvhodnější zdroje biologicky aktivních látek rozpustných v superkritickém CO2 a účinných vůči modelovým hmyzím škůdcům vybrány saturejka zahradní, kmín kořenný, máta peprná, levandule lékařská a routa vonná. Byly vyhodnoceny letální dávky a protipožerové účinky rostlinných výtažků pro celou řadu rostlin, celkem čtyři druhy hmyzu, a celkem šest variant postupu získávání výtažků. Plynovou chromatografií bylo stanoveno chemické složení výtažků. Složení a účinky výtažků byly navzájem porovnány pomocí dvou nově zavedených postupů.
Keywords:
insecticidal activity; supercritical fluid extraction; plants
Available at various institutes of the ASCR
Report for the Project Optimization of Supercritical Fluid Extraction for Maximal Yield of Biologically Active Substances from Plants
Savory, caraway, peppermint, lavander and ruta were selected out of more than twenty plants as the best resources of biologically active substances soluble in supercritical CO2 and effective against ...
Polycyclic Aromatic Hydrocarbons in the Atmosphere of Large Towns. An Expert Study Intend to Origin and Occurence of These Matters in Different Localities of Prague in Particular Seasons
Tydlitát, Vratislav; Kotlík, B.; Karban, Jindřich
2008 - Czech
Results of measurement of polycyclic aromatic hydrocarbons in part in atmosphere, in part on aerosols from atmosphere and in dust from aircondition taken on eight places in Prague inclusive two traffic tunnels in years 2005 to 2007 are presented. Spectra of PAHs from aerosols of the traffic tunnel in two followend years (2006,2007) are not full identical. We anscribe the alternation to consecutive change of the car flotile and to the change of composition of fuels with ecologic components. Presentují se výsledky měření polycyklických aromatických uhlovodíků jednak v ovzduší, jednak v aerosolech z ovzduší a v prachu ze vzduchotechniky na osmi místech v Praze včetně dvou dpravních tunelů v letech 2005 až 2007. Spektra PAU z aerosolů z dopravy v tunelech nejsou ve dvou následujících letech (2006,2007) zcela identická. Změnu přisuzujeme postupné změně parku vozidel a měnícímu se složení paliv s ekologickými složkami.
Keywords:
polycyclic aromatic hydrocarbons; aerosols from atmosphere; traffic tunnel
Available at various institutes of the ASCR
Polycyclic Aromatic Hydrocarbons in the Atmosphere of Large Towns. An Expert Study Intend to Origin and Occurence of These Matters in Different Localities of Prague in Particular Seasons
Results of measurement of polycyclic aromatic hydrocarbons in part in atmosphere, in part on aerosols from atmosphere and in dust from aircondition taken on eight places in Prague inclusive two ...
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