The problem of preserving drinking water sources is becoming more and more urgent every year. The importance of fresh water cannot be overestimated: the life and health of the entire population of the Earth depends on its quality. To prevent future generations from experiencing a shortage of fresh water, it is already necessary to fight for the purity of water resources.
The supply of fresh water to cities is directly related to the quality of water supply systems. Because of old pipes, thousands and thousands of cubic meters of fresh water are wasted and polluted. Now many projects of new water supply systems are being developed based on scientific discoveries of recent decades. The Japanese company TORAY is engaged in the research of nanofibers and the creation of carbon-based nanotubes. In Russia, many Far Eastern enterprises are gradually switching to the use of modern pipes made of high-strength cast iron with a nodular graphite structure, which makes it possible to protect water from pollution. Timely introduction of advanced technologies will allow more rational use of the remaining water resources of the planet.
The preservation of existing fresh water supplies depends on strict adherence to global environmental standards. It is impossible to stop the activities of many enterprises of the light, heavy and chemical industries, but modern industrial cleaning systems make it possible to recycle factory waste without damaging the environment. Deviations from environmental norms and their violations must necessarily be suppressed by serious fines.
Forests need to be conserved, which are essential to maintaining the planet's proper water cycle. The ability of trees to hold and store water makes them an important part of natural infrastructure: forests are the optimal environment for creating drinking water reservoirs. In addition, forests stop soil erosion, are responsible for regulating groundwater levels, and mitigate the effects of major floods and spring floods. The experience of the USA, Spain, South Africa and Singapore, which extract most of the drinking water for large cities from their forest zones, should be used in other countries as well.
Purification is an important part of programs to conserve drinking water supplies. In many regions of the planet, there is a shortage of safe water, free from infections and harmful substances. There are several ways to neutralize impurities. The traditional chemical method is gradually giving way to the physical, when water is purified using membrane technologies. In Japan, where "auxiliary water" is used especially effectively, rainwater is sterilized by ozonation.