Kalk


Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 1384

Warning: preg_match_all(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 700

Warning: Invalid argument supplied for foreach() in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 707

Warning: preg_match_all(): Compilation failed: invalid range in character class at offset 4 in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 700

Warning: Invalid argument supplied for foreach() in /home/httpd/vhosts/anda-aquascaping.ch/httpdocs/wp-content/plugins/lightbox-plus/classes/shd.class.php on line 707

Normalerweise und zum grössten Teil entsteht die Karbonathärte oder auch Wasserhärte genannt, unter Auflösung von Kalk (CaCO3), beziehungsweise Dolomit (Ca-Mg-Mischcarbonat), durch Kohlensäure unter Bildung löslicher Hydrogencarbonate (HCO3).

Die Kohlensäure welche durch Kohlendioxid eingewaschen wird, stammt vorwiegend aus der Veratmung der Mikroorganismen im Boden (aerobe Bakterien), wo vor allem der mikrobielle Abbau organischer Substanzen erhöhte CO2-Konzentrationen liefert.

Die Wasserhärte entsteht beim Durchtritt von Wasser durch Böden und/oder Grundwasserleiter (Aquifere). Deshalb hängt es stark vom geologischen Untergrund ab, welche und wie viel Härtebildner in Lösung gehen können. Dem entspricht die geografische Verteilung der Wasserhärte.

Magnesium- und Calciumionen können am einfachsten durch den Lösungsvorgang in das Wasser gelangen, etwa durch Auflösungen von Gips (CaSO4 × 2 H2O), da Wasser das Lösungsmittel schlechthin ist.