In a note it is a question of use of street roads and sidewalks for collecting and water purification. For this purpose it is necessary to cover them with a porous stone blocks made of special concrete with special additives which help to clear sewage. The cleaning stone blocks will help with to save water resources and to relieve environment of city pollution. The processed moisture is offered to be used for watering of plants and for water washout in a toilet.
UDC 628
- both automobile, and sidewalks – it is possible to use street roads for collecting and water purification: it is necessary to cover only them with a stone blocks created by engineer Simon Bichem, the professor of University of South Australia.
According to the scientist, all secret – in a special material. It is concrete which contains the special additives, helping to clear sewage. And the "processed" moisture Bich suggests to collect at once in big underground capacities later to use for watering of plants or for washout in toilets.
During a rain sewage pollutes drains that often leads to various floodings. Therefore the professor suggests to apply a porous stone blocks: thanks to it water on the special pipeline will leave at once under the earth that should will relieve of the mentioned problems.
According to Bichem, until recently to collect water from roads it was much heavier, than from roofs. However it and his colleagues consider that new development on the contrary, will be convenient and even useful. After all the cleaning stone blocks not only will help to save water resources, but also to relieve environment of characteristic city pollution.
The stone blocks contains impurity which clear of lead, zinc, cadmium – usual toxins in activity products motor transport. And under the street it would be necessary to put a sand mix with the same structure and a fabric layer with bacteria which decompose hydrocarbon (generally gasoline and oil). Besides, to Scourges suggests to use one more "classical" material – absorbent carbon.
Vodoochistitelnaya Street will benefit also to the trees which roots will receive more water (pure), and thanks to porosity of structure of a material – there is more than air. It is supposed that term of effective work of a stone blocks – 25-30 years.
(On Sv_t newspaper materials).