Near-natural water treatment

Nature and technology

Near-natural processes for water treatment in connection with technical solutions are able to provide water of high quality for various purposes. Due to their relatively low level of technology and energy input, these processes are increasingly coming to the attention of the public. These solutions are particularly interesting for countries with scarce resources and a weak infrastructure. But even in the highly industrialised world, a rethink towards energy-saving solutions is called for without abandoning the high quality standards. Climate change, demographic change and land-use change also make it necessary to rethink the technology-based concepts. Constructed wetlands” have proven to be examples of extremely successful near-natural processes for water treatment. In Germany, so-called retention soil filters have been in operation at various locations for more than two decades. Retention soil filters are classified as vertically flowed through constructed wetlands.


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