Detailed Information on Publication Record
2003
Environmentally accetable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones
FAIMON, Jiří, Jindřich ŠTELCL, Svatava KUBEŠOVÁ and Jiří ZIMÁKBasic information
Original name
Environmentally accetable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones
Name in Czech
Environmentálně přijatelný účinek paroxidu vodíku na jeskynní lampenflóru, kalcite a vápence
Name (in English)
Environmentally accetable effect of hydrogen peroxide on cave "lamp-flora", calcite speleothems and limestones
Authors
FAIMON, Jiří (203 Czech Republic, guarantor), Jindřich ŠTELCL (203 Czech Republic), Svatava KUBEŠOVÁ (203 Czech Republic) and Jiří ZIMÁK (203 Czech Republic)
Edition
Environmental Pollution, Elsevier, 2003, 0269-7491
Other information
Language
Czech
Type of outcome
Článek v odborném periodiku
Field of Study
Geochemistry
Country of publisher
Czech Republic
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 2.002
RIV identification code
RIV/00216224:14310/03:00030516
Organization unit
Faculty of Science
UT WoS
000181539500011
Keywords in English
Cave; Dissolution; Hydrogen peroxide; Kinetics; Lamp-flora
Tags
International impact, Reviewed
Změněno: 23/9/2009 15:38, doc. Ing. Jiří Faimon, Dr.
V originále
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.
In English
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.
Links
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