What industries are high water pollution industries that use sewage treatment?

High water pollution industries: thermal power, steel, cement, petrochemical, chemical, non-ferrous metal smelting.

Introduction to Sewage Treatment:

Sewage treatment (wastewater treatment): The process of purifying sewage to meet the water quality requirements for draining or reusing a body of water. Sewage treatment is widely used in construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical care, catering and other fields, and is increasingly entering the daily life of ordinary people.

Water is available in all walks of life; Therefore, as far as the industry is concerned, the industries that basically have wastewater drainage must be treated with sewage, such as: textile, printing and dyeing, medicine, thermal power, steel, food, photovoltaic, electronics, biology, petroleum and petrochemical, automobile, aquaculture, sewage in residential or residential areas, ships, there are too many.

Now as long as it is an industrial enterprise, it must be equipped with sewage treatment equipment if there is sewage discharge. As for the high-polluting industries, there are many chemical, petroleum, electroplating, food, papermaking and so on.

As long as the sewage is generated, it needs to be treated, unless the sewage pollution is very light, and it can be directly discharged up to the standard;

Generally, the pollution of papermaking, chemical, hospital and other industries is more serious.

Electronics industry, automotive industry, spraying industry. We have water treatment equipment at home.

Sewage treatment plants, high energy consumption enterprises.

Industries with high water consumption and high pollution include 14 industries, such as iron and steel smelting, cement, papermaking, chemical industry, thermal power, casting, printing and dyeing, electroplating, flat glass, tanning, non-ferrous smelting, coke, chlor-alkali, mining, etc. According to a 2008 release by the people of Beijing's Tongzhou District, the high water consumption and high pollution mentioned include the industries listed above.

Each of the industries mentioned above uses a large amount of water in its own production process, such as rinsing, cooling, dilution, etc. At the same time, a large amount of sewage will be generated in the production process, such as high COD concentration, inorganic salts, organic matter, etc.

The 13th Five-Year Plan National Energy Conservation and Emission Reduction Targets:

1. In terms of energy conservation, by 2020, the energy consumption per 10,000 yuan of GDP in China will be reduced by 15% compared with 2015, and the total energy consumption will be controlled within 5 billion tons of standard coal.

2. In terms of emission reduction, it is proposed that the total emissions of chemical oxygen demand, ammonia nitrogen, sulfur dioxide and nitrogen oxides in the country should be controlled within 20.01 million tons, 2.07 million tons, 15.8 million tons and 15.74 million tons respectively, which are 15% and 15% lower than that in 2015.

3. The total emission of volatile organic compounds in China decreased by more than 10% compared with 2015.

The above content refers to the opinions of the people of Tongzhou District, Beijing - 2008 Tongzhou District to eliminate the three high enterprises.

The above content refers to Encyclopedia - Paper Mill.

The above content refers to Encyclopedia - Printing and Dyeing.

The above content refers to the relevant person in charge of the National Development and Reform Commission of the People's Republic of China, the National Development and Reform Commission, and the Ministry of Environmental Protection on the "13th Five-Year Plan" Comprehensive Work Plan for Energy Conservation and Emission Reduction.

Sewage treatment is the process of purifying sewage in order to make it meet the water quality requirements for discharge into a certain body of water or reuse. Sewage treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemical, environmental protection, urban landscape, medical treatment, catering, etc., so what industry does sewage treatment belong to?

1. The water treatment industry in the environmental protection industry is divided into three categories: circulating water treatment system, comprehensive treatment of water resources, tap water and special water treatment.

2. Sewage treatment belongs to the comprehensive treatment of water resources, so it belongs to the environmental protection industry! From another point of view, the primary industry is agriculture, the secondary industry is industry, and the others belong to the tertiary industry.

3. China's tertiary industry includes two major sectors: circulation and service, and sewage treatment should be regarded as a service industry, but some people think that it is an industrial enterprise and should be subject to value-added tax.

4. The so-called sewage treatment plant, that is, the process of introducing the sewage of each chemical plant for treatment and collecting relevant fees accordingly, belongs to the service industry and should be subject to business tax.

5. The operation and management of the urban sewage plant, like the operation and management of other industries, is the general name of the whole process of sewage treatment planning, organization, control and coordination, and is the general name of various management activities of the enterprise (such as administrative management, technical management, equipment management, etc.)."Three productions"management) is the most important part of the various business activities of the enterprise.

According to China's National Economic Industry Classification and ** (GB 4754-2011), the national economic industry classification: a agriculture, forestry, animal husbandry, fishery; b Mining; c Manufacturing; d Electricity, heat, gas and water production and industry; e Construction; f Wholesale and retail trade; g Transport, storage and postal services; h Accommodation and catering; i Information transmission, software and information technology services; j Financial sector; k Real estate; l Leasing and business services; m Scientific research and technical services; n Water conservancy, environment and public facilities management; o Resident services, repairs and other services; p Education; q Health and social work; r Culture, sports and entertainment; s Public administration, social security and social organization; t International organizations.

Among them, D4620 sewage treatment and recycling.

Refers to the treatment and disposal of sewage sludge and the reuse of purified sewage treatment plants.

The industries with high water consumption and high pollution are steel smelting, cement, papermaking, chemical industry, thermal power, casting, printing and dyeing, electroplating, flat glass, tanning, non-ferrous smelting, coke, chlor-alkali, mining, etc.

The most difficult sewage to treat is which industry is generated, cutting fluid wastewater, refractory to degradation and refractory biochemical organic wastewater, acrylic wastewater, coking wastewater, bleaching and dyeing wastewater are all difficult to treat wastewater. Cutting fluids include a large number of mineral oils, animal oils and vegetable oils, and oily agents, surfactants, emulsifiers, preservatives, etc. Acrylic wastewater contains a large amount of oligomers and inorganic and high nitrogen-containing organic matter.

Summary. Dear, glad to answer for you. Which industry produces the most difficult sewage to treat A:

The most difficult effluent to treat is produced by the steel industry. Coke wastewater has been recognized as one of the most difficult industrial wastewater to treat. With the rapid development of China's iron and steel industry and the continuous expansion of coke production capacity, the amount of coke wastewater produced is also increasing.

Which industry produces the most difficult sewage?

Dear, glad to answer for you. Which industry produces the most difficult sewage A: The most difficult sewage is produced by the steel industry.

Coke wastewater has been recognized as one of the most difficult industrial wastewater to treat. With the rapid development of China's iron and steel industry and the continuous expansion of coke production capacity, the amount of coke wastewater produced is also increasing.

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Textile industry.

The textile printing and dyeing industry is the earliest developed and internationally competitive traditional advantageous industry in China, but it is also a typical industry with high energy consumption and high water consumption. The energy consumption of the textile printing and dyeing industry accounts for about the total industrial volume of the country, and the water consumption accounts for about it. At the same time, the textile printing and dyeing industry is one of the key polluting industries in China, and its pollution is mainly reflected in the two aspects of wastewater and waste gas, and the supervision of waste gas is more difficult than that of wastewater.

In recent years, the state has focused on supporting the technological transformation of the textile printing and dyeing industry, and has given corresponding policy support in terms of technological development and scientific and technological research, so that China's textile printing and dyeing industry has been greatly improved in terms of quality, variety and efficiency, and the overall competition has been greatly improved.

Hazards of industrial wastewater

1. Destruction of water sources: It can directly pollute water sources, resulting in water quality being affected, and water pollution such as odor and color is dark, which affects people's drinking water safety.

2. Air pollution: Wastewater contains a large number of toxic and harmful substances, which are easy to volatilize under high temperature conditions and are discharged into the atmosphere, causing pollution to the atmosphere and affecting air quality.

3. Polluted soil Wu Qinglim: It can continue to pollute soil and plants, resulting in a decrease in soil quality, infiltrating toxic and harmful substances into the soil and plants, and affecting the growth of plants.

4. Damage to the ecological environment: It can directly enter rivers, lakes, ponds and other water bodies, destroy the water ecosystem, pollute water quality, and cause damage to the living environment of fish and other organisms in ponds and other water bodies, so that organisms lose their living space.