Changing the guality of drinking water and the resistance of the pipeline when transporting it through water pipes

Abstract

Transportation of drinking water on the water supply network is a complex and important problem, which requires many practical problems. Thus, the water supply network is designed for the regime of maximum water consumption in the settlement, and the period of operation of the network is characterized not only by maximum water consumption, but also by minimum water use, which takes place at night. Therefore, the velocities of water flow through the pipes will change during the day from maximum to minimum, and in some areas will fall to zero and even change the direction of flow. This situation contributes to the formation on the inner surface of water pipes of biological film, which develops on all types of pipe material (concrete, plastic, steel, cast iron, copper). Hours of minimal water consumption, characterized by low water flow rates, are favor able for the process of fixing bacteria on the inner surface of the pipes and the formation of local colonies that destroy the material of the pipeline.
 Special attention is paid to iron bacteria, which oxidize iron oxide, turning it into oxidative. This process is accompanied by precipitation,- hydroxide. Therefore, in the process of vital activity of iron bacteria in the middle of the pipelines formed a mobile sediment, which reduces the diameter of the pipes, and the water gets a rusty-red color and an unpleasant odor.
 Attention is drawn to the fact that some artesian waters used for water supply of the population contain hydrogen sulfide. When oxygen enters such bodies, they begin to develop filamentous sulfur bacteria. In appearance filamentous sulfur bacteria (Beggiaroacea) resemble long tufts of gray hair, and congestion, formed from filamentous sulfur bacteria rapidly increase in volume and clog the living section of the pipes, saturating the drinking water with an unpleasant odor.
 Therefore, bacteria transported through the pipes together with drinking water degrade its quality, saturating the water with an unpleasant odor, clog the living section of the pipes and destroy the inner surface of the pipes and destroy the inner surface of the pipes due to corrosion.