Deprecated: Return type of RemexHtml\Tokenizer\PlainAttributes::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sites/site100008071/web/wiki/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/PlainAttributes.php on line 24

Deprecated: Return type of & RemexHtml\Tokenizer\PlainAttributes::offsetGet($key) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sites/site100008071/web/wiki/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/PlainAttributes.php on line 28

Deprecated: Return type of RemexHtml\Tokenizer\PlainAttributes::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sites/site100008071/web/wiki/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/PlainAttributes.php on line 32

Deprecated: Return type of RemexHtml\Tokenizer\PlainAttributes::offsetUnset($key) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sites/site100008071/web/wiki/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/PlainAttributes.php on line 39

Deprecated: Return type of RemexHtml\Tokenizer\PlainAttributes::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sites/site100008071/web/wiki/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/PlainAttributes.php on line 44

Deprecated: Return type of RemexHtml\Tokenizer\LazyAttributes::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sites/site100008071/web/wiki/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/LazyAttributes.php on line 42

Deprecated: Return type of & RemexHtml\Tokenizer\LazyAttributes::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sites/site100008071/web/wiki/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/LazyAttributes.php on line 49

Deprecated: Return type of RemexHtml\Tokenizer\LazyAttributes::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sites/site100008071/web/wiki/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/LazyAttributes.php on line 56

Deprecated: Return type of RemexHtml\Tokenizer\LazyAttributes::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sites/site100008071/web/wiki/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/LazyAttributes.php on line 66

Deprecated: Return type of RemexHtml\Tokenizer\LazyAttributes::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/sites/site100008071/web/wiki/vendor/wikimedia/remex-html/RemexHtml/Tokenizer/LazyAttributes.php on line 102

Deprecated: ctype_digit(): Argument of type bool will be interpreted as string in the future in /home/sites/site100008071/web/wiki/includes/libs/objectcache/wancache/WANObjectCache.php on line 2403
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Silberrückgewinnung

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Silberrückgewinnung

aus gebrauchten Fixierlösungen / Fixierbädern.

Chemisch

https://www.researchgate.net/publication/262636082_Recovery_of_Silver_from_Waste_Radiographic_Films_by_Chemical_Leaching Vergleich verschiedener Mathoden, Oxalsäure und Salpetersäure.

Dithionit

Fällung mit Natriumdithionit. Es werden 0,83g Dithionit pro g Silbe benötigt. https://www.fotografie-in-schwarz-weiss.de/sw-fotografie/wissen/93-fixierbaeder.html

Hier gibt es ein Video leider ohne Ton, welches offensichtlich diese oder eine ähnliche Methode anwedet, aber mit ein paar Schritten mehr als nur Fällung. https://www.youtube.com/watch?v=XV-HSYS-yOU

Eisenwolle

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Silberrückgewinnung

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Silberrückgewinnung

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