What are the things used in life that can pollute the water?

Wastewater is classified differently from different perspectives. According to different **, it is divided into two categories: domestic wastewater and industrial wastewater; According to the chemical category of pollutants, it can be divided into inorganic wastewater and organic wastewater; There are also classified according to the industrial sector or the production process that produces wastewater, such as coking wastewater, metallurgical wastewater, pharmaceutical wastewater, food wastewater and other pollutants mainly include: (1) untreated industrial wastewater; (2) Untreated domestic sewage; (3) Farmland sewage with a large number of chemical fertilizers, pesticides, and herbicides; (4) industrial waste and domestic garbage piled up near the river; (5) deforestation, soil erosion; (6) Mine sewage is produced due to over-exploitation.

The main sources of domestic pollution are all kinds of detergents and sewage, garbage, feces, etc. used in urban life, most of which are non-toxic inorganic salts, and domestic sewage contains more nitrogen, phosphorus, sulfur, and more pathogenic bacteria.

Is it commonly used in life? For example, laundry detergent, detergent, etc., pesticides commonly used in rural areas, chemical fertilizers, etc.

Situations that cause water pollution in life:

1.Indirect pollution of water by waste batteries: people do not throw waste batteries directly into the soil, and their main components are manganese, mercury, zinc and other heavy metals buried deep in the ground, and their heavy metal components will overflow with leachate, causing groundwater and soil pollution.

2.Burning coal to produce sulfur dioxide forms acid rain and pollutes water 3Direct contamination of water with phosphorus-containing laundry detergents:

Phosphorus-containing laundry detergent uses phosphate as the main auxiliary, and after the washed sewage is discharged into rivers and lakes, the phosphorus content in the water increases, and the water quality tends to eutrophication, resulting in a large number of algae and aquatic weeds, turbid water quality, lack of oxygen in the water body, and the death of aquatic organisms such as fish and shrimp.

The main cause of water pollution is the concentration of urban population, and the pollution of water bodies caused by urban domestic sewage, garbage and exhaust gas. Domestic sewage is a mixture of various sewage produced in people's daily life, including sewage discharged from kitchens, washing rooms, bathrooms and toilets.

In the process of life, a lot of wastewater and waste will be generated, and if these wastewater wastes are not effectively treated and discharged into the water body, they will cause water pollution, such as washing, cooking, and going to the toilet, and the waste water and garbage produced will become a source of pollution once they are discharged into the water without proper treatment.

In short, any activity that produces wastewater and waste is likely to cause water pollution. It's just that the pollution is light and heavy, and the light one is quickly purified through the self-purification effect of the water body; Only the heavier ones are observed because they exceed the self-purification effect of the water body and cannot be purified in a short period of time.

Upstairs friends, I think the water for washing clothes is not enough for water pollution, and the more serious thing in life is the littering of waste batteries.

Used batteries, burning coal, laundry detergent.

Domestic water, industrial sewage, artificial drainage.

Throw away garbage, chemical plant excrement, etc.

Water pollution can be light or severe, and any action is possible, so don't mind too much.

Use a lot of laundry detergent containing P.

1. Industrial wastewater pollution.

Industrial wastewater includes production wastewater, production sewage and cooling water, which refers to the wastewater and waste liquid generated in the industrial production process, which contains industrial production materials, intermediate products, by-products and pollutants generated in the production process that are lost with water.

2. Domestic sewage pollution.

Domestic sewage is the wastewater discharged from the daily life of residents, mainly in residential buildings and public buildings, such as residences, institutions, schools, hospitals, shops, public places and toilets of industrial enterprises.

3. Agricultural sewage pollution.

Agricultural sewage refers to the sewage and precipitation discharged from agricultural and animal husbandry production, or the water discharged by irrigation water flowing through farmland or through farmland leakage. The large-scale use of chemical fertilizers and pesticides in agriculture has turned agricultural production activities, which have a very small impact, into the main source of water pollution.

Harm caused by environmental pollution:

1. Harm to human health.

A person needs to breathe air to stay alive. An adult breathes about 20,000 times a day and inhales 15 20 cubic meters of air. Therefore, polluted air has a direct impact on human health.

The harm of air pollutants to the human body is multifaceted, manifested as respiratory system damage, physiological dysfunction, digestive system disorders, nervous system abnormalities, mental decline, carcinogenesis, and disability. People call this smoke of disaster"Murderous smoke".

2. Harm to plants.

Air pollutants, especially sulfur dioxide and fluoride, are very harmful to plants. When the concentration of pollutants is very high, it will cause acute harm to plants, causing lesions on the surface of plant leaves, or directly causing the leaves to wither and fall off.

When the concentration of pollutants is not high, it will cause chronic harm to plants, making plant leaves green, or there are no harmful symptoms on the surface, but the physiological function of plants has been affected, resulting in a decline in plant yield and deterioration of quality. <>

Plastic pollution. This is a relatively common type of pollution, mainly polluting marine and groundwater resources.

The drinks we drink daily are usually made of plastic, as well as take-out boxes, packaging bags, disposable tableware, etc., which are plastic pollution, and people living in coastal areas should be "common".

Plastic Pollution Hazards:This type of plastic pollution, which is common in coastal areas, can affect growth, development and reproduction when it enters the ocean if it is ingested by marine organisms of different trophic levels, such as zooplankton, shellfish, fish, seabirds and mammals.

However, that's not the worst of it, these plastic items can take hundreds of years to degrade.

For long periods of time, the marine environment and marine life are more at risk.

Untreated urban domestic sewage, paper sewage, agricultural sewage, and municipal solid waste hazards: consume dissolved oxygen in the water, endangering the survival of fish. It causes rivers and streams to turn black, smell, accumulate toxins, and harm people and animals.

Most of the detergents are petrochemical products, which are difficult to degrade, and discharge into the river will not only seriously pollute the water body, but also accumulate in the aquatic products, and people will be poisoned after eating.

Phosphorus-containing laundry detergent can cause algae to grow in the water, and when the phosphorus-containing sewage discharged by humans enters the lake, the algae in the lake will increase dramatically due to the abundant nutrients in the lake (called eutrophication).

Soil erosion and dumping of garbage into rivers reduce the quality of water, making it more difficult and costly to purify water. Modern household waste has many components that are difficult to degrade, such as plastic packaging materials. When they enter the river, they are not only very harmful to aquatic life (they can die if ingested), but also block the river.

Some organic chemicals can accumulate in aquatic organisms and cause poisoning after human consumption. Most organic chemicals are toxic, and their entry into rivers and lakes will poison or poison aquatic organisms, causing ecological damage. Water contaminated with organic chemicals is difficult to purify, and the safety and health of human drinking water are threatened.

Mining and smelting processes, industrial waste, tannery wastewater, textile factory wastewater, and household waste (such as batteries, chemicals) will have direct physiological toxicity to humans and animals. Irrigating crops with water containing heavy metals can contaminate crops with heavy metals, making agricultural products toxic. It is deposited at the bottom of rivers, bays, enters the food chain through aquatic plants, and enters the human body through aquatic products such as fish.

A spill from an oil tanker in the ocean can kill a large number of marine animals, from fish and shrimp and seabirds to seals, sea lions, etc. The harm caused by the leakage of water vehicles and oil tankers: it will damage the ecological environment of aquatic organisms and reduce the production of fisheries.

Contaminating aquatic food endangers human health.

Coal mines, other metals (copper, lead, zinc, etc.), mine waste, factories that discharge acid into rivers, poison the greenery in the water, and cause the death of fish and other aquatic organisms. Serious damage to the ecosystems of streams, ponds and lakes.

Water pollution affects industrial production, increases equipment corrosion, affects product quality, and even makes production impossible. Water pollution also affects people's lives, destroys the ecology, and directly endangers people's health, causing great damage.

1) After water pollution that endangers people's health, pollutants enter the human body through drinking water or food chain, causing acute or chronic poisoning. Arsenic, chromium, ammonium, benzo(a)pyrene, etc., can also induce cancer. Water contaminated with parasites, viruses or other pathogenic bacteria can cause a variety of infectious and parasitic diseases.

Water polluted by heavy metals is harmful to human health. Water and food contaminated by cadmium can cause kidney and bone lesions after human diet, and ingestion of 20 mg of cadmium sulfate will cause death. Poisoning caused by lead, causing anemia and nervous disorders.

Hexavalent chromium is very toxic, causes ulcers, and has carcinogenic effects. Drinking arsenic-containing water can cause acute or chronic poisoning. Arsenic inhibits or inactivates many enzymes, causing metabolic disorders, keratinization, and cancer.

Organophosphorus pesticides can cause neurotoxicity, and organochlorine pesticides will accumulate in fat, causing harm to the endocrine, immune function and reproductive function of humans and animals. Most of the fused aromatic hydrocarbons have carcinogenic effects. Cyanide is also a highly toxic substance, and after entering the bloodstream, it binds to the cell's pigment oxidase, interrupting breathing, causing respiratory failure and suffocation.

We know that 80% of the world's diseases are water-related. Typhoid, cholera, gastroenteritis, dysentery, and infectious liver are the five major human diseases, all of which are caused by the uncleanness of water.

2) After the water pollution of industrial and agricultural production, more treatment costs must be invested in industrial water, resulting in waste of resources and energy, and the water requirements for food industry are more stringent, and the water quality is unqualified, which will bring production to a standstill. This is also a factor that the efficiency of industrial enterprises is not high and the quality is not good. The use of sewage in agriculture reduces crop yields, reduces quality, and even harms people and animals, pollutes large areas of farmland, and reduces soil quality.

The consequences of marine pollution, such as oil pollution, which kills seabirds and marine life, are also severe.

3) The hazard of eutrophication of waterUnder normal circumstances, oxygen has a certain solubility in water. Dissolved oxygen is not only a condition for the survival of aquatic organisms, but also an important reason why natural water has the ability to self-purify by participating in various redox-reduction reactions in water and promoting the transformation and degradation of pollutants. The discharge of domestic sewage containing a large amount of nitrogen, phosphorus and potassium will reduce a large amount of organic matter in the water to release nutrients, promote the growth of algae in the water, the growth of plants, the poor ventilation of the water body, the decline of dissolved oxygen, and even the appearance of an oxygen-free layer.

As a result, a large number of aquatic plants die, the water surface turns black, and the water body stinks to form "dead lakes", "dead rivers", "dead seas", and then turn into swamps. This phenomenon is called eutrophication of water. The eutrophication water has a large odor, dark color, and many bacteria, and the water quality is poor, and it cannot be used directly, and a large number of fish die when the water is interrupted.

1. The harm of water pollution to the human body.

In the process of metabolism of the human body, along with drinking water and food, various elements in the water enter all parts of the human body through the digestive tract. When water is deficient in some or some elements that are necessary for the life processes of the human body, it affects human health. When water contains harmful substances, it is more harmful to the human body.

Carcinogens can be introduced into the human body through the consumption of contaminated food (grains, vegetables, fish, etc.), and can also enter the human body through drinking water. When the sewage contains mercury, cadmium and other elements discharged into rivers and lakes, aquatic plants will absorb and enrich mercury, cadmium and other elements, after the fish eat aquatic plants, and further enrich in their bodies, after people eat poisoned fish, mercury, cadmium and other elements are enriched in the human body, so that the human body is sick and dies.

2. The harm of water pollution to aquatic life.

A wide variety of aquatic animals and plants live in the water. When humans discharge pollutants into the water, some beneficial aquatic organisms will be poisoned and die, while some pollution-tolerant aquatic organisms will intensify their reproduction, consume a large amount of oxygen dissolved in the water, and make the beneficial aquatic organisms forced to move to other places due to lack of oxygen, or die. In particular, some toxic elements are insoluble in water and easy to accumulate in living organisms, causing great harm to human beings.

For example, the amount of mercury in water is very low, but the content in aquatic organisms is very high, and the content in fish is surprisingly high. Assuming a mercury concentration of 1 in the water body, the concentration of mercury in benthic organisms (i.e., small organisms living in the sediment of the water body) in aquatic organisms is 700, while the concentration of mercury in fish is as high as 860. It can be seen that when the water body is polluted, on the one hand, it leads to the destruction of the balance between organisms and water, and between organisms, and on the other hand, some toxic substances continue to transfer and enrich, and finally endanger the health and life of human beings.

3. The impact of water pollution on industrial and agricultural production.

Industrial and agricultural production not only needs to have enough water, but also has certain requirements for water quality. Otherwise, it will cause great losses to industry and agriculture, especially after the use of polluted water in the process of industrial and agricultural production, it will be extremely harmful to human beings. First, the industrial equipment is damaged, which seriously affects the quality of products.

The second is to change the chemical composition of the soil and reduce its fertility, resulting in reduced crop yields and serious pollution. The third is to increase the cost of sewage treatment for domestic and industrial water in cities.