A natural swimming pool
The bio-lake is much more than a swimming pool. The concept inherent to the bio-lake as a natural bathing area is that water purification is carried out by the purifying capacity of the water itself which totally excludes the use of chemicals such as chlorine. The result is fresh, soothing water without the risks of chemically-induced allergic reactions. The advantage of a naturalistic system is added to the quality of the water which in a short time is transformed in a genuine reservoir for fresh water fauna and plant life human beings can enjoy. It is a live swimming pool which does not entail emptying or winter covering. In fact, the closed circuit water remains warm and during the winter months there are no problems concerning emptying. In the cold period of the year, the bio-lake is decorative and can even freeze without consequences for the system. Furthermore, there is no need to discharge into the sewerage system nor is it necessary to replenish the lake with potable water (except in summer to compensate for intense evaporation). Hence, there are lower operating costs and an unlimited life: in fact, in time, this wildlife habitat will regenerate according to the environment’s natural pace.
Only one area is for leisure bathing and swimming purposes, while the other is reserved for aquatic plants and microorganisms, whose function is to purify the water.
The value of water and aquatic plants
Choosing a bio-lake means firstly, understanding the importance of water and the natural environment which surrounds it. Water is in itself a complex eco system which is in close relationship with the surrounding territory: mountains, forests, the countryside, gardens and cities. Water is very rich in bacteria, unicellular beings whose main task is to mineralize organic substances, making it recyclable. What makes the bio-lake system a living system are the innumerable animal and plant organisms, unicellular and multicellular, which occupy every single available space and which exploit all types of resources. Even water plants purify water thanks to some very important properties: they absorb heavy metals, filter water clouding substances, absorb nutrients and toxic organic compounds.
The self-purification characteristics of water would be optimal if the excessive quantity of waste and toxic substances did not alter its fine balance, thus reducing this capability. Lately, the power of water plants to phyto-purify water has been significantly reassessed. An increasing number of camp grounds, holiday villages and installations use phyto purification systems as a valid alternative to waste water and sewage disposal. According to some scholars, at least in certain conditions, this technique is thought to allow substantial savings and phyto purification is now used more and more frequently even to naturalize rivers, lakes and polluted canals.
Thanks to their branched radical apparatus, aquatic plants contribute in consolidating shores, in enhancing the quality of water while actively contrasting eutrophication. These plants filter suspended substances which could make the water turbid and cooperate with other bacteria in breaking down chemical components, even complex ones, and neutralizing toxic and harmful substances