In real practice, almost half of the water, after its technical or technological use in various degrees of pollution, is drained by sewerage systems to wastewater treatment plants and subsequently discharged into the recipients of rivers and streams. The current and especially the future method of urban and industrial wastewater treatment is at such a high level that the treated water, before its discharge into the recipients, has a higher degree of quality than the flowing surface water in the watercourse. Under these ever-improving conditions and possibilities, it is appropriate to use well-treated wastewater not only for the needs of agriculture, but also as an alternative supply of fire water for fire purposes. The dislocation of wastewater treatment plants (hereinafter WWTP) in territorial cadastres with safe access to the opened level of treated water allows its relatively rapid pumping at any time, especially in conditions where there is no other suitable natural or multipurpose source of fire water. The following article suggests in a basic way how to use the given options without the risk that the treated wastewater will not endanger the health of fire brigades or will not have the negative impact on the environment of the extinguished building and its surroundings in which the fire is extinguished.
The current management of the world’s fresh water resources is not optimal. Due to the uneven distribution of water, many parts of the world are entering a passive water management balance due to climate change and the growth of the human population. The Czech Republic is one of the countries with a passive balance. With ongoing climate change, it will be difficult in many regions to maintain sufficient raw water for technological and technical purposes without intensification in the water management process. Scientific progress and current technical possibilities offer ways to increase the way water is treated and the possibilities of re-using the realized water in the area of its use for various purposes, from the water source to the final cycle. One of these possibilities and the way of intensive use of water is dealt with in the following article.
Current water management does not fully account for potential crisis situations when dealing with drinking water. It is important to focus on an efficient and at the same time economic approach to water management, including consideration of the ecological aspect. One way is to focus on the use of alternative sources of water. The possibilities of purified wastewater or captured rainwater indicate a certain direction. Current technical possibilities and scientific knowledge offer many opportunities. The priority is to find and increase the way to limit the use of drinking water for economic activities. The more intensive use of alternative water sources is still in the background and neglected. This article provides information on this issue and encourages deeper ecological and economic reflexion.
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