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@article{486076,
author = {Faimon, Jiří and Štelcl, Jindřich and Kubešová, Svatava and Zimák, Jiří},
article_number = {3},
keywords = {Cave; Dissolution; Hydrogen peroxide; Kinetics; Lamp-flora},
language = {cze},
issn = {0269-7491},
journal = {Environmental Pollution},
title = {Environmentally accetable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones},
volume = {122},
year = {2003}
}
TY - JOUR
ID - 486076
AU - Faimon, Jiří - Štelcl, Jindřich - Kubešová, Svatava - Zimák, Jiří
PY - 2003
TI - Environmentally accetable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones
JF - Environmental Pollution
VL - 122
IS - 3
SP - 417-422
EP - 417-422
PB - Elsevier
SN - 02697491
KW - Cave
KW - Dissolution
KW - Hydrogen peroxide
KW - Kinetics
KW - Lamp-flora
N2 - 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.
ER -
FAIMON, Jiří, Jindřich ŠTELCL, Svatava KUBEŠOVÁ a Jiří ZIMÁK. Environmentally accetable effect of hydrogen peroxide on cave ''lamp-flora'', calcite speleothems and limestones. \textit{Environmental Pollution}. Elsevier, roč.~122, č.~3, s.~417-422. ISSN~0269-7491. 2003.
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