Domestic sewage is the daily discharge of residents, mainly from residential buildings and public buildings, such as: schools, hospitals, public toilets and other sewage discharge, the pollutants contained in domestic sewage are mainly organic matter and a large number of pathogenic microorganisms. So what harm does this do to everyone? This chapter water quality online monitoring instrument manufacturers to understand the hazards of sewage in life together!
Pathogen Pollution Hazards of Sewage
The sewage mainly comes from urban domestic sewage, hospital sewage, garbage and ground. The characteristics of pathogenic microorganisms are as follows: 1. Large quantity; 2. Wide distribution; 3. Survival time is relatively long; 4. Fast reproduction rate; 5. Resistance is easy to occur, not easy to disappear; 6. After the traditional secondary biochemical sewage treatment and chlorine disinfection, several pathogenic microorganisms and viruses can still survive in large numbers;
The above pollutants actually enter the human body through a variety of ways, and survive in the body, causing human diseases!
Hazards of Aerobic Organic Pollution in Sewage
The common feature of organic matter is that after these substances enter the water body directly, they are decomposed into simple inorganic substances carbon dioxide and water through the biochemical action of microorganisms, and dissolved oxygen in the water is consumed in the decomposition process. Under hypoxic conditions, pollutants will decompose and degrade the water quality, and these organic matter are often called aerobic organic matter. It shows that the more aerobic organic matter in the water body, the more oxygen consumption, the worse the water quality, and the water pollution becomes serious.
The Harm of Sewage Eutrophication Pollution
Eutrophication pollution is a phenomenon of water pollution caused by excessive content of plant nutrients such as nitrogen and phosphorus. Eutrophication of aquatic ecosystem can be produced by chemical pollutants in two ways: one is to limit the increase of inorganic nutrients in plants under normal conditions; Another is the increase of organics by increasing the decomposers.
Speaking of this, if you want to drink safe water resources, it is inseparable from the water quality monitor, through the detection of water quality data to judge the specific situation of water quality!
