Today we will talk about the harm of direct discharge of domestic sewage.
Living sewage is the water we use in our daily lives, including bathrooms, toilets, kitchens, washing machines discharged from the water in the residential areas, hospitals, public places, schools and other factories, these places will contain more organic sewage, such as animal fats, carbohydrates, proteins, and so on, and there are also detergents and soaps as well as pathogenic microorganisms, parasitic eggs and so on. The main reason for this is the fact that it is not possible to get rid of the bacteria in the water.
Need for organic pollution: organic a *** with the same characteristics, is that when these substances in the water body, after the biochemical effect of microorganisms, will be decomposed into simple inorganic matter, that is, carbon dioxide and water, and in the process of decomposition need to consume dissolved oxygen in the water, and in the absence of oxygen conditions, the pollutants occur in the corruption and decomposition of deterioration of the water quality, and these organics are called aerobic organics. called oxygen-demanding organic matter, when the more oxygen-demanding organic matter in the water, the more oxygen they consume, the worse the water quality will become, water pollution will become more and more serious.
Pathogenic pollution: pathogenic pollution is mainly from urban sewage and ground flow of garbage, etc., and pathogenic microorganisms are characterized by a wide distribution, long survival time, easy to produce resistance, fast reproduction speed, the number of, and some of the pathogenic microorganisms and viruses can be a large number of survival of these pollutants, and then through a variety of methods to enter into the body, and then in the body to survive, thus causing a variety of human diseases. This can cause a variety of diseases in the human body.
Odor: odor is a very common pollution hazards, it often occurs in the polluted water, and people can smell the odor can reach more than 4000 kinds of hazards there are more than a dozen kinds of pain will hinder the normal respiratory function, reduce the digestive function, so that the person's mental irritability lead to reduced efficiency, memory and judgment, and if the long-term odor in the environment of the work life, then it will also cause olfactory impairment, will also cause a variety of diseases. Will also cause olfactory impairment, will also damage the nerve and cerebral cortex excitation regulation function, many aquatic products stained with malodor after the body of water can not be eaten or wasting malodor, more can not raise fish to drink or swim, which also destroys the use of the water, and the value of the water.
Normally, domestic sewage will be collected through the sewage pipe, and then transported to the sewage treatment plant, after treatment, can achieve the purpose of recycled water.