Podrobnosti záznamu

Název
    Environmentally accetable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones
Další názvy
    Environmentally accetable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones
Autor
    Faimon, Jiří
    Kubešová, Svatava
    Štelcl, Jindřich
    Zimák, Jiří
Jazyk
    česky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Environmental Pollution
Svazek/č.
    Roč. 122, č. 3
Strany
    6
Rok
    2003
Výraz tezauru
    Cave
    Dissolution
    Hydrogen peroxide
    Kinetics
    Lamp-flora
Klíčové slovo
    Accetable
    Calcite
    Cave
    Effect
    Environmentally
    Hydrogen
    Lamp-flora
    Limestones
    Peroxide
    Speleothems
Abstrakt (česky)
   Mosses, algae, and cyanobacteria (lamp-flora) colonize illuminated areas in show caves. This biota is commonly removed by a sodium hypochlorite solution. Because chlorine and other deleterious compounds are released into a cave environment during lamp-flora cleansing, hydrogen peroxide was tested as an alternative agent. In a multidisciplinary study conducted in the Katerinska Cave (Moravian Karst, Czech Republic), 12 algae- and cyanobacteria taxons and 19 moss taxons were detected. The threshold hydrogen peroxide concentration for the destruction of this lamp-flora was found to be 15 vol.%. Based on laboratory experiments in stirred batch reactors, the dissolution rates of limestones and calcite speleothems in water were determined as 3.77E-3 and 1.81E-3 mol m-2 h-1, respectively. In the 15% peroxide solution, the limestone and speleothem dissolution rates were one order of magnitude higher, 2.00E-2 and 2.21E-2 mol m-2 h-1, respectively.
Abstrakt (anglicky)
   Mosses, algae, and cyanobacteria (lamp-flora) colonize illuminated areas in show caves. This biota is commonly removed by a sodium hypochlorite solution. Because chlorine and other deleterious compounds are released into a cave environment during lamp-flora cleansing, hydrogen peroxide was tested as an alternative agent. In a multidisciplinary study conducted in the Katerinska Cave (Moravian Karst, Czech Republic), 12 algae- and cyanobacteria taxons and 19 moss taxons were detected. The threshold hydrogen peroxide concentration for the destruction of this lamp-flora was found to be 15 vol.%. Based on laboratory experiments in stirred batch reactors, the dissolution rates of limestones and calcite speleothems in water were determined as 3.77E-3 and 1.81E-3 mol m-2 h-1, respectively. In the 15% peroxide solution, the limestone and speleothem dissolution rates were one order of magnitude higher, 2.00E-2 and 2.21E-2 mol m-2 h-1, respectively.
Přispěvatel
    MU Brno, Přírodovědecká fakulta
Kód přispěvatele
    MU, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012