System failures cannot be corrected to a 100%
During torrential
rainfalls it happens repeatedly that the sewage systems cannot transport the
massive water quantities. Then, untreated sewage must be drained with raw
excrements and pathogens in the environment. Also the sewage plants cannot
treat these water quantities, therefore Pathogens
are flushed out into the environment .
It was
common to build “mixed-water storage
basins” (mixed-water is a mixture of raw sewage and rain water) as an engineering
solution for this technical problem
hoping to prevent an overflow of the brown floods. But even these water storage
basins are not capable of retaining the enormous floods of heavy rain, as one
hears frequently: Flood in Eastern Germany
2002, last Lake Constance high tide etc.
The
drinking water supply in Germany
is one of the best of the world. Thanks to our excellent technical
infrastructure and the intensive water monitoring, our tap water is often of
better quality than bottled mineral water. But the centralistic flow-through concept
represents a real threat in most other countries, which do not posses such an
infrastructure. Approx. 5 million people worldwide die - mostly children - of
the so-called “water born diseases". These are mostly diarrhoea illnesses
which are caused by faecal loaded drinking water.
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