FAIMON, Jiří, Jindřich ŠTELCL, Svatava KUBEŠOVÁ a Jiří ZIMÁK. Environmentally accetable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones. Environmental Pollution. Elsevier, 2003, roč. 122, č. 3, s. 417-422. ISSN 0269-7491.
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Základní údaje
Originální název Environmentally accetable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones
Název česky Environmentálně přijatelný účinek paroxidu vodíku na jeskynní lampenflóru, kalcite a vápence
Název anglicky Environmentally accetable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones
Autoři FAIMON, Jiří (203 Česká republika, garant), Jindřich ŠTELCL (203 Česká republika), Svatava KUBEŠOVÁ (203 Česká republika) a Jiří ZIMÁK (203 Česká republika).
Vydání Environmental Pollution, Elsevier, 2003, 0269-7491.
Další údaje
Originální jazyk čeština
Typ výsledku Článek v odborném periodiku
Obor Geochemie
Stát vydavatele Česká republika
Utajení není předmětem státního či obchodního tajemství
Impakt faktor Impact factor: 2.002
Kód RIV RIV/00216224:14310/03:00030516
Organizační jednotka Přírodovědecká fakulta
UT WoS 000181539500011
Klíčová slova anglicky Cave; Dissolution; Hydrogen peroxide; Kinetics; Lamp-flora
Příznaky Mezinárodní význam, Recenzováno
Změnil Změnil: doc. Ing. Jiří Faimon, Dr., učo 1405. Změněno: 23. 9. 2009 15:38.
Anotace
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. So, the peroxide solution was recognised to attack carbonates somewhat more aggressively than karst water. In order to prevent the potential corrosion of limestone and speleothems, the reaching of preliminary peroxide saturation with respect to calcite is recommended, for example, by adding of few limestone fragments into the solution at least 10 h prior to its application.
Anotace 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. So, the peroxide solution was recognised to attack carbonates somewhat more aggressively than karst water. In order to prevent the potential corrosion of limestone and speleothems, the reaching of preliminary peroxide saturation with respect to calcite is recommended, for example, by adding of few limestone fragments into the solution at least 10 h prior to its application.
Návaznosti
MSM 143100004, záměrNázev: Geologické procesy a jejich environmentální vyústění - styk variscid a alpid
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Výzkumné záměry
VytisknoutZobrazeno: 15. 4. 2021 09:18