No matter when and where, serious responsibility is the basic principle. If you want to glow with extraordinary colors in an ordinary post, you must be conscientious and conscientious in your work. Nowadays, there are environmental pollution in many areas, especially water pollution, which has a serious impact. Due diligence report can grasp the water environment well. The following is a report on the investigation and analysis of water resources in Hangzhou, which friends can learn from.

Resources are indispensable to human beings. With the progress of society, there are more and more factories, which will cause more and more pollution to water. If people drink polluted water, there will be serious consequences. Here I have compiled a survey report on urban water pollution for your reference.

Water pollution and water shortage are two major problems faced by the global fresh water resources, and Huainan is also a problem faced by people. Water resources play an irreplaceable role in maintaining the virtuous circle of ecosystem and the sustainable development of human society. With the development of society, water resources with strong social functions show its great role in social development. On the one hand, the rapid increase of population and the gradual decrease of per capita water resources have become an important factor affecting one side's social and economic development; On the other hand, problems such as low-cost water use, waste and pollution in management, etc., lead to the limited water resources can not play a strong social characteristics. Therefore, how to manage and make good use of limited water resources has become a social problem that people are very concerned about today. In order to improve the water environment and protect water resources in Hangzhou more quickly, the measures of combining treatment with utilization are adopted, and the ecological treatment system is used to realize the harmless and resource utilization of sewage while treating it, so as to realize the virtuous cycle of water and the sustainable utilization of water resources.

I. Basic situation of water resources in Hangzhou

Will there still be water shortage along the coast of Hangzhou? The answer is yes. Hangzhou is listed as one of the 300 water-deficient cities in China. China is a country with serious water shortage, and it is one of the 13 water-poor countries in the world. China's per capita water resources are about 2,200 cubic meters, which is only 1/4 of the world's per capita level and ranks 109 in the world. The water shortage in normal years in China is about 40 billion cubic meters, and the industrial output value caused by water shortage is nearly 300 billion yuan. Hangzhou is located in the middle reaches of the Huaihe River, across the banks of the Huaihe River, and runs through the whole territory from west to east. It is the main water source for urban industrial and agricultural production and people's life. The per capita surface water in Huaihe River Basin is only 4 1 m3, which is less than the national average of 1/5. Compared with the world, it is only equivalent to 1/20 per capita in the world. Especially in recent years, the flow of Huaihe River in Huainan has been decreasing year by year. As far as the current average flow is concerned, compared with the 1950s, it is less than 1/4. During the period of 1999, there was a rare phenomenon of water cut-off in the middle reaches of Huaihe River. From June 5438 to July 2002, the water level of the Huaihe River dropped to the lowest level in the same period in history, and the water volume of the Huaihe River was very tight. Therefore, the municipal government set up an emergency leading group headed by the mayor, and issued the "Hangzhou Urban Emergency Water Supply Plan" to relevant departments. The water crisis once again sounded the alarm for us.

Many people think that the Huaihe River water is "inexhaustible", which is an important factor causing the increasing shortage of water resources in our city. Because people don't know enough about saving water resources, the foundation of saving water in our city is weak, and a large number of enterprises use water-consuming technologies and equipment for a long time. Enterprises only care about immediate interests and are unwilling to implement water-saving technological transformation. From the management point of view, the water management in our city has not yet formed an authoritative management system, and the decentralized management system has caused the water to be in anarchy; A set of water management policies and regulations is not perfect, the subject of law enforcement is unknown, and the means of law enforcement are lacking. The only water-saving management department in our city, the municipal water supply and water-saving management office, is also difficult to play its due role due to various reasons such as system.

In the investigation, it was found that some people turned a blind eye to the potential water crisis and some were alert. Anhui Industry and Trade Vocational and Technical College invested a lot of money to establish an intelligent water control system. Nearly 6,000 staff and students in the school have a card, which is inserted to get water. The bathroom is equipped with an infrared sensing water-saving device to prevent water resources from being wasted. Yao Duozhong, dean of the college, told the reporter that after the water-saving renovation, the water fee has dropped from 80,000 yuan to 50,000 yuan per year in the case of infrastructure projects this year, and the water-saving benefits are obvious. Anhui University of Science and Technology has made great efforts in saving water, with a total investment of more than 3 million yuan. It has transformed the water supply facilities in three campuses, cancelled the water supply by water transfer, and started intelligent water-saving devices in bathhouses and boiling water rooms for all staff.

How much water is paid and how much money is paid, so that students can use water digitally, which not only enhances students' awareness of water saving, but also reduces the pressure on schools and improves water use efficiency.

Hangzhou is a city with tight water resources. To alleviate the shortage of water resources in Hangzhou, in addition to opening up new sources, efforts can also be made to reduce expenditure. It is necessary to establish a unified and authoritative water-saving management organization as soon as possible, take the market as the guide, adopt administrative and legal means, and formulate a series of operable laws and regulations from the strategic height of sustainable utilization of water resources. At the same time, it is necessary to strengthen publicity, enhance the awareness of water conservation in the whole society, call on enterprises to ease resource constraints, reduce environmental pressure, and strive to build a conservation-oriented society.

It is urgent to save water. If we Huainan people turn a blind eye to the coming water shortage crisis, the last drop of water we see may be our own tears in a few years.

Second, water pollution and prevention countermeasures

(1) water pollution investigation

In recent years, with the aggravation of water pollution in Huaihe River, there has been a serious drinking water crisis in Wanglin Village. Some villagers have to buy their daily drinking water at the price of two yuan per barrel, which is a great burden for farmers who rely on farmland and even grow cash crops. It is sad that Chaoyang, located in a water-rich area, has a water crisis, especially a drinking water crisis.

The water resources investigation team of the Green Association of Anhui University of Science and Technology found in Wanglin Village, Hangzhou that the small Wanglin Village accommodated more than 1000 villagers. So far, no family has used tap water, and there are few ponds in the village. Even if there is, it has been polluted and buried by domestic construction waste. Therefore, villagers have to rely on well water for daily drinking, washing and irrigation, and people with other economic conditions even rely on pure water for cooking.

However, this originally clear and pure well water has now become "excessive water", "sick water" and even "stagnant water". Wanglin Village is close to the "three wastes" discharge channel of Huaihua Group. In recent years, with the influence of water pollution in Huaihe River and villages, well water quality has gradually deteriorated, with high calcium and magnesium ion content and high hardness. "We saw with our own eyes in the villagers' homes that the villagers boiled these hard waters, and the kettle for boiling water and the thermos flask for storing water were covered with thick scales." The head of the investigation team told the reporter. People with poor water quality have salty well water, immature rice and rotten beans. After washing your hair, it will stick together and can't even be used for washing clothes. In the dry season, conflicts between neighbors will arise from water. The village head personally told college students that all the well water in the village exceeded the standard, and some even exceeded the standard by five or six times. After investigating hand killing, college students found that many chemical indicators, toxicological indicators and bacteriological indicators exceeded the rural drinking water standard, and long-term drinking was unsanitary and unsafe, which might lead to intestinal infectious diseases, endemic goiter, Kaschin-Beck disease and so on, causing different degrees of physical harm to people and seriously affecting the construction of new socialist countryside. The village chief said that there were not a few people suffering from lithiasis in the village, and even many people got esophageal cancer and died young. It is miserable for villagers to drink such hard water for a long time.

(B) the causes of water pollution

The water pollution in Hangzhou is very serious. After investigation and analysis, it is found that water pollution mainly includes the following aspects:

1, some township entrepreneurs are backward. In order to reduce costs and maximize profits, industrial wastewater is directly discharged without treatment;

2. Planting cash crops such as fruits and vegetables in farmland and indiscriminate application of pesticides and fertilizers have caused serious soil pollution and water pollution;

With the improvement of people's living standards, human and animal manure used to be farmyard manure that everyone wanted, but now it has become a dirty thing that everyone doesn't want. Septic tanks have been built in many residential areas. With the wide application of phosphorus-containing detergents, domestic sewage has not been treated centrally, and rivers have become direct sewage channels.

4. Eutrophication of water body promotes the crazy growth of plankton such as water hyacinth, and the oxygen content in water drops, and fish and shrimp gradually disappear, further promoting the deterioration of water quality;

5. In some places, streams and rivers are used as dumping places for solid wastes;

6. Some enterprises use inferior technology to treat some industrial wastes, burn plastics and dump sulfuric acid waste liquid at will, which not only causes surface water pollution, but also has a bigger worry that the waste water contains some toxic heavy metal ions. Once it goes deep into the ground to pollute the bottom water, it will cause regional water pollution that is more difficult to control.

(3) Prevention and control measures

We put forward the following views on how to solve these crises:

1. In order to strengthen the awareness of protecting the environment and water resources, the government should play its role, concentrate private capital and manpower, and build industrial sewage and domestic sewage treatment facilities. Enterprises with serious pollution and poor economic and social benefits should be rectified without mercy.

2. Strengthen ideological work, strictly supervise the use of land and resources, and encourage farmers to properly handle human and animal manure, which not only improves the soil, but also saves costs, which is conducive to environmental protection and the sustainable development of agriculture.

3. It is necessary to strengthen river basin cooperation, strengthen cooperation among different administrative regions within the river basin, control pollution and protect water resources. Scattered is a handful of sand, and gathered is a pile of gold.

Three. Problems and Countermeasures in the Utilization of Water Resources

(a) Problems in the utilization of water resources

Through the analysis of the present situation of water resources utilization in Hangzhou, the serious problems existing in the utilization of water resources in Hangzhou mainly include the following aspects:

1, lack of understanding of water resources and low utilization rate of water resources.

First, there is no quota for industrial water, unlimited water intake and extremely low reuse rate. In order to pursue the rapid development of economy, coupled with the low level of water resources management, enterprises take water at will and use it indefinitely, which makes the output of water resources relatively low. Second, agricultural irrigation water is seriously wasted. According to the investigation of agricultural production in the whole city, the water used for agricultural irrigation in the whole city is basically the original method, that is, series slow irrigation.

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