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Sauberwasser – oder was sich wirklich unter Aesch verbirgt…

Claude, 9. März 2007, 00:28 Uhr

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bach-wohin.png
Das Klusbächli. Nach einem künstlich naturisierten Verlauf über Felder fliesst es hier in einem Tunnel unterirdisch weiter bis zur Birs. Aber wie sieht das dort drinnen aus? Dieser Frage gingen wir vor kurzem auf den Grund – oder besser gesagt in den Grund – und stiessen dabei auf bedenkliche Tatsachen…

Zuerst mal ein kleiner Überblick:

karte.png
Das Klusbächli fliesst unterirdisch durch Aesch und mündet schliesslich in die Birs. Etwas unterhalb der Birs befindet sich eine Grundwasseranreicherungsanlage. Doch dazu später mehr.

Wir haben die gesamte Route unterirdisch abgeklappert. Hin und wieder kommt ein Dolendeckel, mit einer Aufschrift in etwa dieser Art:
sauberwasser.png

Sauberwasser. Das steht für Wasser, welches auf den Strassen, Dachrinnen etc. vom Regen abfliesst.

Als wir aber nach kurzer Zeit im Tunnel waren, fing es plötzlich ganz übel an zu stinken. Rechts mündet eine Röhre in den Tunnel:
wasser-aus-rohr.png

Wir trauten unseren Augen nicht, als sich uns folgendes Bild präsentierte:
igitt.png
All paar Meter ein braunes Häufchen. Und was ist das Gelbe? Erbrochenes?
Handelt es sich hierbei etwa um eine KANALISATION?

Dem Gestank nach absolut. Ausserdem sind am Ausgang dieser Röhre reihenweise Toilettenpapierreste aufgehäuft. Na prima…

Da wird also eine Kanalisation ungereinigt in das Klusbächli geleitet. Und dieses wiederum mündet in die Birs.

Und ein paar hundert Meter weiter unten befindet sich –
die Grundwasseranreicherungsanlage!

birsufer.png
Toilettenpapierreste in den Uferbüschen – muss ich dazu noch etwas sagen?

ansaugen.png
Hier wird das „Sauberwasser“ abgeschöpft…

filterbecken.png
…und versickert in den Kieselbecken.

schema.png
Das Wasser wird von der Birs in ein Absetzbecken und dann über die Kiesbecken in den Schluckbrunnen geleitet, wo es ins Grundwasser absickert.

Das ist ja spannend – also entweder habe ich das Wasserreinigungsprinzip nicht verstanden, oder wir haben hier einen Skandal.

In der Gewässerschutzverordnung lesen wir:

Art. 8 Versickerung
1. Das Versickernlassen von verschmutztem Abwasser ist verboten.

Aber keine Sorge, im Absatzbecken setzen sich die Schmutzreste ab. Genauso die HIV-verseuchten Tampons, Wirkstoffe von Medikamenten, Krankheitserreger und alles andere Zeug.

UND DAS TRINKEN WIR!!!!!

rakudave

leeeeeeeeeeeeeckerrr *würg*

UrBaN 4102

lecker schmecker

bäh….
*geht sich wasser kaufen*

foxie

ouuuuuuuuuuuuuuäääääääääääää, han doch erscht grad gässe!!

Wi!!iam Wa!!ace

schöne momänt.

urban du vo binnige bechunsches wasser entweder vo oberwil oder basel. sovill mir bekannt ishc.

Lülü

jo diend doch nid so, die bakterie härte ein nur ab ^^

komisch wenn me bedänkt, dass me d schwiz eins vo de süübrste trinkwasser het… willi jo nid wüsse was in kambodscha usechunnt…. dört hesch nochhär dr schissr wennds vom hane trinksch, widrum isch abführmittel grad im wassr gratis enthalte… e gegeargument 😀

longneck, schigg dä bricht doch mol nach rynach, arlesheim (bezirkshauptstadt), liestl und nach bärn… würd mi wundr näh wie die uns das erkläre… 🙂

foxie

naja, wär abr au moll interessant zerscht z wüsse, was d aescher drzue meine…

rakudave

allerdings…

Lülü

ok jo scho recht, dr witz isch i ha nur gläse kah grundwasseranreicherungsanlage und denn s dorfwappe vo rynach gseh, ha gar nid gseh dass es das vo aesch isch… letschts bild…

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