How much do you know about the harm of Inner Mongolia wastewater treatment of different sewage? Domestic sewage is the waste water discharged from the daily life of residents, mainly from residential buildings and public buildings, such as houses, institutions, schools, hospitals, shops, public places, and industrial enterprises' toilets. Pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrate, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and intestinal infectious viruses). The organic matter present in the domestic sewage is extremely unstable and easily decomposes to produce a foul odor. Bacteria and pathogens multiply with organic matter in domestic sewage as nutrients, which can lead to the spread of infectious diseases. Therefore, domestic sewage must be treated before it is discharged. Pathogen pollution mainly comes from urban sewage, hospital sewage, garbage and ground runoff. The characteristics of pathogenic microorganisms are: ① large number; ② wide distribution; ③ long survival time; ④ fast reproduction speed; ⑤ easy to produce resistance and difficult to eliminate; ⑥ after the traditional secondary biochemical sewage treatment and chlorine disinfection, Some pathogenic microorganisms and viruses can still survive in large numbers; such pollutants actually enter the human body through multiple channels and survive in the body, causing human diseases.
Aerobic organic matter pollution: The common feature of organic matter is that after these substances directly enter the water body, Inner Mongolia sewage treatment is decomposed into simple inorganic substances carbon dioxide and water through the biochemical action of microorganisms. During the decomposition process, dissolved oxygen in the water is consumed. Pollutants decompose and degrade water quality under oxygen conditions. These organic substances are often called aerobic organic substances. The more aerobic organics in water, the more oxygen it consumes, and the worse the water quality, indicating that the water pollution is more serious.
Eutrophication pollution: It is a phenomenon of water pollution caused by excessive nitrogen, phosphorus and other plant nutrients. The eutrophication of the aquatic ecosystem of Inner Mongolia wastewater treatment can occur through two ways through chemical pollutants: one is through the increase of the amount of inorganic nutrients that normally limit the plant; the other is through the organic matter as a decomposer increase.
Stink: Stink is a common pollution hazard, and it also occurs in polluted water bodies. There are more than 4,000 kinds of malodors that people can smell, and dozens of them are harmful. The harmful effects of malodor are as follows: ① obstructing normal respiratory function and diminishing digestive function; mental irritability, reduced work efficiency, reduced judgment and memory; long-term work and life in a malodorous environment will cause olfactory disorders and damage the central nervous system and cerebral cortex Exciting and regulating functions; ② some aquatic products are infected with malodor and cannot be eaten and sold; ③ malodorous water bodies cannot be used for swimming, fish farming and drinking, which destroys the use and value of water; ④ can also produce hydrogen sulfide, formaldehyde, etc. Toxic hazard.
Acid, alkali, and salt pollution: Acid and alkali pollution change the pH of the water body, destroy its buffering effect, eliminate or inhibit the growth of microorganisms, hinder the self-purification of the water body, and also cause corrosion to bridges, ships, and fishing gear. Acid and alkali often enter the same water body at the same time, and some salts can be generated after neutralization. From the perspective of pH value, acid and alkali pollution self-purify due to neutralization. Pollutants. Because the increase of inorganic salts can increase the osmotic pressure of water and have a negative impact on the growth of freshwater organisms and plants, in salinized areas, the salt in surface water and groundwater will further harm the soil quality.
The hardness of groundwater with high hardness, especially permanent high hardness water, is manifested in many aspects. Inner Mongolia wastewater treatment : difficult to drink; it can cause digestive tract dysfunction, diarrhea, and abortion of pregnant animals; Kettle and boiler life; boiler water scale, easy to cause explosion; need to be softened and purified, acid, alkali, salt loss to the environment will cause the hardness of groundwater to rise, the waste water treatment of Inner Mongolia will form a vicious cycle.
Pollution by toxic substances: Poisons by toxic substances are a particularly important category in water pollution. There are many types, but the common feature is the toxic harm to biological organisms.