Is it reasonable to treat river sewage and divert clean water for flushing?

Impact and prevention of water pollution.

Foreword: 1) Distribution of water pollution and current status of water pollution in China.

Some people say that the color of the earth is green, and she is pregnant with life, which indicates the birth and future of mankind. I say that she is the cradle of life, the mother of mankind, and she selflessly dedicates all her love to the children and grandchildren of mankind. She is indeed large and vast, but not boundless; She is indeed beautiful, beautiful mountains and rivers, but not forever young; She is indeed rich and has a wide range of resources, but she is not inexhaustible.

Nowadays, the earth's ecological environment has been seriously damaged by human activities. In particular, water pollution is more prominent.

Water is the lifeblood of all things on earth, nourishing all things, nourishing life, and creating civilization. China's water resources are extremely unevenly distributed. China's per capita water resources are less than 500 cubic meters, far below the internationally recognized threshold of 1,000 cubic meters per capita.

Many large and medium-sized cities in the north have stopped production or limited production due to water shortage, and the annual output value has reached 120 billion yuan, and some cities in the south have also experienced water shortages. At present, more than 300 of the more than 600 cities in the country are short of water, of which 108 are seriously short of water, and the water shortage is about 10 million tons a day. Millions of people live in water scarcity...

In the face of "dripping water is as expensive as oil", it is sad that human beings waste and pollute it: according to statistics, the world's sewage discharge has reached 400 billion cubic meters, polluting trillions of cubic meters of water, accounting for more than 14% of the world's total runoff.

2) Water pollution.

How is water polluted? There are two main reasons: one is natural and the other is man-made.

Water pollution caused by the dissolution of various ores by rainwater, volcanic eruptions, and wind erosion in arid areas caused by a large amount of dust falling into the water body, which is natural pollution. It is man-made pollution that discharges a large amount of untreated industrial wastewater, domestic sewage and various wastes into water bodies, causing water quality to deteriorate. And what people usually refer to as water pollution mainly refers to the latter type, and it is also the main one.

1: The process of polluting water bodies.

In general, water has its own self-purifying ability. The self-purification capacity of water includes dilution diffusion, precipitation accumulation, redox and decomposition of organic matter by microorganisms in water. It can be roughly divided into four paragraphs:

The first is the polluted section, due to the mixing of a large number of pollutants, the water quality of the river deteriorates, there is very little dissolved oxygen in the water, except for bacteria, there are few other organisms, especially almost no self-oxygenated organisms; The second is the decomposition section, where the organisms that decompose organic matter gradually multiply, the biological decomposition activity is intense, a large amount of dissolved oxygen is consumed, it is difficult for fish to survive, algae and protists with low aerobic demand appear, etc., and after the biochemical oxygen demand gradually decreases, the dissolved oxygen in the water gradually increases; The third is the restoration stage, where algae, fish and other macroscopic organisms are reactivated and the water quality gradually becomes clearer; The fourth is the clear water section, the dissolved oxygen is close to saturation, the water quality is clean, and the self-purification process is completed.

This is not washed away, the sewage is washed away, there is always a place to bear the sewage, this kind of demolition of the east wall to make up the west wall, it is really not advisable, it is recommended to introduce a sewage treatment plant.

Legal analysis: If the polluter fails to pay the pollutant discharge fee in accordance with the regulations, the local people's environmental protection administrative department at or above the county level shall order it to pay within a time limit according to its authority; If the payment is refused within the time limit, a fine of not less than 1 time but not more than 3 times the amount of the sewage fee should be paid, and it shall be reported to the people with the right to approve for approval, and ordered to suspend production and business for rectification.

Legal basis: Regulations on the Administration of the Collection and Use of Sewage Charges

Article 2 Units and individual industrial and commercial households that directly discharge pollutants into the environment (hereinafter referred to as pollutants) shall pay pollutant discharge fees in accordance with the provisions of these Regulations.

Where polluters discharge sewage into centralized urban sewage treatment facilities and pay sewage treatment fees, they shall not pay sewage discharge fees. Where polluters build industrial solid waste storage or disposal facilities or sites that meet environmental protection standards, or their original industrial solid waste storage or disposal facilities or sites are transformed to meet environmental protection standards, they shall no longer pay pollutant discharge fees from the date of completion of the construction or transformation.

Article 6 Polluters shall, in accordance with the provisions of the competent administrative department for environmental protection, declare the types and quantities of pollutants discharged to the local people's administrative department for environmental protection at or above the county level, and provide relevant materials.

Article 21 Where polluters fail to pay pollutant discharge fees in accordance with regulations, the competent administrative department for environmental protection of the local people's ** at or above the county level shall order them to pay within a time limit in accordance with their authority; If the payment is refused within the time limit, a fine of not less than 1 time but not more than 3 times the amount of the sewage fee should be paid, and it shall be reported to the people with the right to approve for approval, and ordered to suspend production and business for rectification.

If the polluter fails to pay the pollutant discharge fee in accordance with the regulations, the local people's environmental protection administrative department at or above the county level shall order it to be paid within a time limit in accordance with its authority; Those who refuse to pay within the time limit shall be fined more than 1 times and 3 times the amount of the sewage fee to be paid, and shall be approved by the people with the right to approve and ordered to suspend production and business for rectification.

In order to strengthen the prevention and control of water and car pollution, it is necessary to optimize the inlet of rivers and lakes () and implement the remediation of sewage outlets in mountains, rivers and lakes.

a.number of outlets;

b.the size of the outfall;

c.the layout of the sewage mouth in the tomb shelter;

d.The shape of the outfall.

Correct answer: c

Strictly implement the total amount of pollution in water areas.