Sewage investigation report 1

Introduction:

My hometown is in a small village in Nanyang. With the rapid development of China's economy, the living standard of farmers has also been greatly improved, but it is followed by environmental pollution. Every time I return to my hometown, I feel that the air in my hometown has deteriorated again and again, and the water quality has deteriorated again and again. When I returned to China this time, I made a more detailed investigation on the environmental pollution in my hometown, hoping to understand the environmental situation in my hometown and find out the countermeasures for improvement.

I. Investigators:

Wang Xiao

Second, the investigation time:

20xx August 2 1 to 20xx August 25.

Third, the survey method:

Actually visit, observe and record relevant information.

Four. Survey location:

Focusing on our village department in Tang Wang, several groups nearby made an investigation and investigation.

Verb (abbreviation of verb) Survey content:

1, water pollution:

There is a river in front of our village. When I was a child, the water was clear. In summer, I often bathe in the river with my friends. During this actual visit, I found that some white wastewater was discharged into the water in the east of my village. Because there is little rain this year, there is not much water in the river, which leads to the pungent smell in the river. I walked up this waste water and found that it was from a small paper mill that had just opened in the village, and it flowed down the ditch. Moreover, the smell of waste water in the ditch is really bad. In some places, waste water seeps into farmland, and I don't know what harm it is. Then I rode my bike to Xiaolongshan Reservoir more than ten miles away, and found that the water there was still relatively clear, but sometimes I saw some garbage such as plastic bags and beverage bottles on it.

2. Air pollution:

There are fewer factories in our village, so there is basically no air pollution in the exhaust gas discharged by factories. However, with the continuous improvement of people's living standards, many farmers there have bought motorcycles, tricycles and other tail gas vehicles. On the day of the fair, I came to the street and found that most people who went to the fair used motorcycles and other cars that polluted the air, but few bicycles. This is part of the polluted air. At the time of this survey, millet had not been cut in our hometown, but according to my previous experience, farmers now invite harvesters to collect rice, which causes rice stalks to be crushed in the field and farmers to burn them in the field, which is another aspect of air pollution. Another is that the way we cook here is still the most primitive stove, so there will inevitably be some air pollution in this respect.

3. White pollution:

I observed in several nearby villages and found that the white pollution in rural areas is very serious now. In the past, rural people were basically self-sufficient in eating, so there was no white pollution. What I eat at home is absolutely pure natural and pollution-free products. With the increase of farmers' income, farmers' material needs have also increased. Many villagers went to the market to buy things, resulting in a lot of white garbage such as garbage bags and plastic bottles. These white garbage can be seen everywhere in the village garbage dump, and according to my investigation, these white garbage are directly transported to the ground for treatment and used as fertilizer together with livestock manure, but these white garbage can not be decomposed quickly.

4. Noise pollution:

The noise pollution in our village is also very serious. Noise will affect people's life and work, be harmful to hearing and physical and mental health, and also affect children's intellectual development and our thinking and learning. The main sources of noise are the sound of construction site, the horns of cars and motorcycles on the road and the sound of engines. On the construction site, the sound of air hammer and mixer, the sound of workers loading and unloading bricks. And the noise in the village. These noises will affect people's rest, sleep, life and study. There is a big vegetable market near our home. Many people go there to buy food every day. The crowd makes noise, and the traffic on the road makes a lot of noise, which affects my sleep, rest and study. Over time, those noises will always reverberate in my ears. Therefore, we should also attach great importance to noise pollution.

5. Special case: environmental problems caused by poultry farming and related industries in rural areas.

There are two pig farms in our village. Although these pig farms have contributed to the economic development of our village, they have caused too much pollution to the environment. According to the survey data, the sewage produced by raising a pig is equivalent to the sewage produced by seven people. Nitrate and ammonia nitrogen in the groundwater in the nearby area exceeded the standard, and the wastewater from these two factories was directly discharged into the pond, which caused the water body to stink and turn black, eutrophication, mosquitoes and flies breeding and caused serious pollution to the surrounding environment. In the village, some workshop owners even nailed animal skins on door panels and benches, put them on the road to dry, and spread animal bristles such as pig hair all over the street, which smelled bad and led to a large number of mosquitoes and flies gathering. Most of these workshops are located in the village, which seriously affects the quality of life of the surrounding residents, damages people's physical and mental health, and worsens rural environmental sanitation.

Six: Suggestions

1, village leaders should establish a long-term cleaning team and create a strong rural environmental protection atmosphere. On the one hand, we should attach great importance to environmental governance, designate special personnel to be responsible, establish a cleaning team, and ensure the daily and institutionalized cleaning of village roads. Full-time cleaning team members strengthen village road inspections, clean up road garbage in time, and salvage floating objects in the river; Leaders should start from themselves and set an example.

2. Village cadres should start from the source of water pollution and educate and punish paper mills. They must not indulge such enterprises that only care about their own interests and let these paper mills build their own sewage treatment plants (this is unrealistic), otherwise they will be punished.

For air pollution, firstly, we can't restrict the way we travel in rural areas, and farmers can't go to the market by bike. Therefore, village leaders should actively guide farmers' travel habits, let most people form the habit of riding, and reduce fares and reduce farmers' burden. For rice stalks in the field, it is necessary to organize personnel to treat them centrally to reduce pollution. So is white pollution. It is necessary to set up a team to collect farmers' garbage and pull it to the treatment plant for centralized treatment, so that farmers will not directly transport the garbage to the rice fields.

4. With regard to noise pollution, let the construction unit try not to construct when people are resting, and let these enterprises know the harm of noise to people and realize their mistakes. In villages and other places, we should guide people who come here, don't talk loudly, don't spit at will, and speak and act in a civilized way in public places. For the environmental problems caused by poultry breeding and related industries, we should give priority to guidance, make full use of various resources, carry out ecological recycling breeding, create characteristic industries, turn waste into treasure and make rational use of them.

Seven, harvest and experience

Through this field visit and investigation, I have a general understanding of the environmental situation in our village. In fact, these problems are common problems in rural areas now. In my childhood and primary school, I basically never left our village. The environment at that time was not a fairyland on earth, but also a paradise. With junior high school and senior high school, I have less time to live in the village, especially in senior high school, and even less time at home. But every time I go home, I really feel that the environment in my hometown is constantly changing and getting worse, losing the unique flavor of the countryside and adding a lot of vanity. The economy is developing and the living standards of farmers are improving, but the living environment is deteriorating, which is not what I want to see. However, the change of environment is, after all, a human problem. Corruption and inaction of leaders and "self-purification" of ordinary people are big problems, and economic development brings moral decline.

As a native of the countryside, I really hope that the countryside is a truly harmonious place, not a "harmonious place". I hope that in the near future, villages like ours will be beautiful again and return to their previous purity!

Investigation report on polluted water II

First, the water pollution investigation report

I. Reasons for investigation

With the development of science, the progress of the times and the rapid growth of population, the environment on which human beings depend for survival and development is polluted, the ecological environment is destroyed and the ecosystem will be destroyed. Environmental problems have gone from regional to global, and human beings must care for the earth, care for and solve global environmental problems. Because we "have only one earth."

Water is the source of life. Without water, our life will not go on. The pollution and shortage of water resources are the main problems facing the society today. Although our city is not a city short of water, water pollution exists and is closely related to every citizen. To this end, I investigated the water pollution situation in our city by asking questions.

Second, the investigation process

Step 1: Field investigation. First of all, my dad and I came to Chang 'an Air Traffic Control Station and learned about the rivers in Chang 'an Town from my dad's old classmate Liu Haihua. Then, I took a speedboat and visited Chongchang Port, Changshanhe Port and Taishan Port. Along the way, Uncle Liu Haihua introduced me that these rivers were the main waterways near Chang 'an Town decades ago, and the water was very clear and transparent. Now the garbage is all over the river, and a bad smell is coming. The main cause of water pollution: human factors: wastewater from factories in the upper reaches of the Nihe River is discharged, and urban sewers are placed here. Sewage is discharged into the river through pipelines, and a large number of farmland near the Nihe River is flooded by chemical substances such as fertilizers and pesticides used by farmers, resulting in excessive growth of algae, massive death of fish, poor environmental awareness of residents, and frequent dumping of domestic garbage into the river.

The second step: investigation and analysis. After on-the-spot investigation, I think the harm that water pollution brings to residents. Groundwater pollution makes it difficult to use water, river water pollution seriously breeds a large number of mosquitoes, and river water emits irritating odor, which has adverse effects on people's health.

Third, the conclusion of the investigation.

In order to improve the river environment, all aspects of river and bank regulation should be carried out as soon as possible. First of all, pollution sources should be treated to prevent factories and pig farms from directly discharging sewage and feces into rivers for centralized treatment to avoid adverse effects on the environment. Then, the building materials (waste) in the riverside and river channel will be removed, and the navigation channel will be rectified to further remove the garbage and silt in Hanoi, which can mobilize coastal residents and use large machinery to remove them. After that, plant trees and turf by the river and establish green belts to avoid sand loss.

In order to protect the river environment, we should strengthen the management of nearby factories and pig farms, seriously deal with the behavior of polluting rivers, and educate coastal residents and all citizens on environmental protection to enhance their awareness of environmental protection. The river environment mainly depends on everyone's ideology, so people should consciously protect the river and protect the environment. In this way, a brand-new river will be presented to people forever.

In a word, it should be clear that people themselves are also affected by environmental damage. We should fully understand the relationship between environment and human beings and the advantages and disadvantages of human beings changing the environment. The factors that affect water resources are far more than these. Although our investigation and study may not be mature enough, we hope to improve the status of environmental problems and water pollution problems in people's minds and make the problems improve day by day.

Second, the water pollution investigation report

Water is the source of our life, one of the basic conditions for all living things, and an important condition for human survival and development. At present, the whole world is afraid of the clean water crisis. Although the total amount of water resources in China ranks sixth in the world, it still belongs to one of the countries with serious water shortage. Like other places in our city, many once crystal-clear rivers no longer exist and are replaced by stinking ditches. In order to find out the reasons, reduce the harm of water pollution to people and enhance people's awareness of environmental protection, we observed and discussed the areas with serious water pollution in our city during the summer vacation, and worked out the methods to solve the water pollution problem.

Purpose of investigation:

Through in-depth and meticulous investigation and study, we can provide more detailed information for cultural departments and environmental protection departments and enhance people's awareness of environmental protection. Let people know their hometown better, love the beautiful nature and cherish people's precious source of life-water.

Investigation process:

According to the teacher's arrangement before the summer vacation, during the summer vacation, the two of us visited the villagers living by the river, consulted relevant materials, listened to others' introductions, took photos, and conducted on-the-spot investigation and discussion on the water pollution situation in some areas of our city.

Comprehensive concentration, forming an investigation report.

The clear river turned into a stinking gutter.

First of all, we came to the river near the geological team in our city. According to the local old man, this river was originally beautiful. The river is crystal clear, and fish and seaweed are clearly visible. Groups of children are playing and fighting in the river. The willow trees on the shore are reflected on the calm water, adding a lot of interest to the river, which is very quiet! At that time, the river was the pride of the residents. But what about now? It has been polluted and turned into a black, smelly and disgusting gutter. I lost my beautiful face and was forced to change into an ugly one. The garbage piled up by the river stinks. The fish in the river are dying, and they can't live any longer. The willows on both sides of the river have long died, and pedestrians on the road are terrified. Residents can't even drink water Because of the stimulation of this smell and the deterioration of water quality, many residents often get sick and have moved away.

Causes of river water pollution:

According to our investigation, industrial wastewater and domestic garbage are directly discharged into rivers, lakes and seas without professional treatment, which will cause serious water pollution. Excessive use of chemical fertilizers and pesticides will also pollute water resources ... polluted water cannot be used as drinking water without treatment.

In order to save trouble, people often throw garbage into the clear river, making the water dirty and smelly and becoming a stinking ditch. Seriously polluted the surrounding environment and air, causing three major losses.

Some people often throw disposable lunch boxes, disposable plastic cups and white plastic bags into the river and leave. As long as the wind blows, plastic products will fly around and scrape into the water and branches, often motionless. Over time, the pollutants inside will penetrate into the deep water. Water will be polluted, which will also cause white pollution.

(4) Some food stalls, after buying vegetables, leave some rotten vegetables, which are often thrown aside and nobody cares. Some families living by the river often throw some bad vegetables into the water. In the long days to come, rotten vegetables rotted, seriously polluting water resources, thus turning the river into a stinking ditch.

The oil and wastewater discharged by most ships have poisoned the fish. Some factories that use water discharge sewage back into the river after using it up, which soon pollutes water resources. Some factories discharge pigments into the river, which pollutes water resources more seriously. How hateful!

Some hidden ponds were polluted, and the water in the ponds became the color of Coca-Cola. There are countless garbage and rotten vegetables piled up by the pond. Not far away, factories are discharging sewage. How terrible!

Investigation report on polluted water 3

Chinese name: water pollution

English name: water

pollute

Definition 1: the phenomenon that pollutants enter rivers, lakes, oceans or groundwater, changing the physical and chemical properties of water quality and sediments or the composition of biological communities, and reducing the use value and function of water bodies.

Subject: geography (first-class subject); Environmental geography (two disciplines)

Definition 2: The phenomenon that the chemical, physical, biological or radioactive characteristics of a water body are changed due to the intervention of a substance, thus affecting the effective utilization of water, endangering human health or destroying the ecological environment, resulting in the deterioration of water quality.

Discipline: electric power (first-class discipline); Environmental protection (two disciplines)

Definition 3: The phenomenon that pollutants enter the water body more than the self-purification ability of the water body, which leads to the change of the physical and chemical properties of the natural water body, reduces the water quality, and affects the utilization of water and the growth of aquatic organisms. Including water pollution and water pollution.

Discipline: ecology (first-class discipline); Pollution ecology (two disciplines)

Definition 4: Due to human factors or natural processes, substances are directly or indirectly discharged into water bodies, which causes changes in water quality and affects the normal reproduction and growth of aquatic organisms.

Discipline: fishery (first-class discipline); Fishery environmental protection (two disciplines)

Definition 5: The phenomenon that pollutants enter the water body, which deteriorates the water quality and reduces the function and use value of water.

Discipline: water conservancy science and technology (first-class discipline); Environmental water conservancy (two disciplines); Prevention and control of water pollution (water conservancy) (third-level discipline)

printing block

Harmful chemicals (harmful

Chemistry) reduce or lose the use value of water and pollute the environment. Acids, alkalis and oxidants in sewage, as well as compounds such as copper, cadmium, mercury and arsenic, and organic poisons such as benzene, phenol, dichloroethane and ethylene glycol will poison aquatic organisms and affect drinking water sources and scenic spots. When the organic matter in sewage is decomposed by microorganisms, it consumes dissolved oxygen in the water and affects the life of aquatic organisms such as fish. After the dissolved oxygen in the water is exhausted, the organic matter is decomposed anaerobically, producing unpleasant gases such as hydrogen sulfide and mercaptan, which further deteriorates the water quality. Oil will also float on the water surface, affecting the life of aquatic organisms and causing fires.

brief introduction

Major pollution incident

The shocking Huaihe River water pollution incident

1July, 1994, heavy rain suddenly fell in Henan Province in the upper reaches of Huaihe River, and the water level of Yingshang Reservoir rose sharply, exceeding the flood warning line. So the floodgate was opened, and 200 million cubic meters of water accumulated in the upstream was released in one winter and spring. Where the water flows, the river is turbid and the foam on the river surface is dense, killing the fish and shrimp at once. Some local residents in the downstream have symptoms such as nausea, diarrhea and vomiting after drinking the river water that has not reached the drinking standard after being treated by the waterworks. After sampling inspection, it was confirmed that the water quality of upstream water deteriorated, and the waterworks along the Yangtze River was forced to stop water for 54 days. Millions of Huaihe people are in a hurry to drink water, and many places spend a lot of money to get water to drink. Some local residents snapped up mineral water, which was the "Huaihe water pollution incident" that shocked China and foreign countries.

Three major pollution sources of water quality

Water pollution is mainly caused by pollutants produced by human activities, including industrial pollution, agricultural pollution and domestic pollution.

harm

The increasingly serious water pollution poses a great threat to the survival and safety of human beings and becomes the main obstacle to the sustainable development of human health, economy and society. According to the survey of world institutions, in developing countries, 8% of various diseases are spread by drinking unsanitary water, which causes at least 20 million deaths worldwide every year. Therefore, water pollution is called "the world's number one killer".

An example of water pollution

Minamata disease incident

Bone pain event

Cause of water pollution

Among the water pollution caused by human production activities, the pollution caused by industry is the most serious. For example, industrial wastewater has many pollutants and complex components, which is not only difficult to purify in water, but also difficult to treat.

Industrial wastewater is an important cause of industrial pollution. It accounts for most of the pollutants discharged by industry. Due to different types of factories, the pollutants contained in industrial wastewater vary widely. Even in similar factories, the quality and quantity of pollutants are different due to different production processes. In addition to the direct injection of industrial wastewater into the water body, solid waste and waste gas will also pollute the water body. . . . . .

Agricultural pollution is firstly caused by loose surface caused by farming or land reclamation. When the soil and terrain are unstable, a large amount of sediment flows into the water, which increases the suspended solids in the water.

Another important reason is that the use of pesticides and fertilizers is increasing in recent years. Only a small amount of pesticides and fertilizers used are attached or absorbed, and most of the rest remain in the soil and float in the atmosphere. Through rainfall, they enter the surface water and infiltrate into the surface water to form pollution.

Urban pollution sources are water pollution caused by urban population concentration and urban domestic sewage, garbage and waste gas. The pollution of urban pollution sources to water bodies is mainly domestic sewage, which is a mixture of various kinds of sewage produced in people's daily life, including sewage discharged from kitchens, bathrooms and toilets.

In the world, the industrial and domestic wastewater discharged from urban areas alone is as much as 500 cubic kilometers every year, and each drop of sewage will cause several times or even dozens of times of pollution to the water body.

Investigation report on polluted water 4

I. Background

My hometown is Huagang Town, Jiangyan District, Taizhou City. With beautiful scenery, fresh air and water network, it is a typical water town in the south of the Yangtze River. According to the old people, the river in my hometown used to be beautiful. The river is crystal clear, and fish and algae can be seen clearly. Groups of children are playing and fighting in the river. The willow trees on the shore are reflected on the calm water, adding a lot of interest to the river, which is very quiet! However, with the development of economy, the original crystal clear river has disappeared. On the contrary, garbage floats on the water and the river turns yellow. In order to find out the reasons, reduce the harm of water pollution to people, enhance people's awareness of environmental protection, make people love their hometown more, love beautiful nature, and cherish people's precious source of life-water. I used my holiday to investigate and study the areas with serious water pollution in my town, and provide more detailed information for the environmental protection department.

Second, the content of the survey

1. Field observation: There are many floating objects in Hanoi, mainly domestic garbage and plastic bags. The river is yellow and smelly, and snails, unknown things and algae can be seen on the shore, and occasionally small fish can swim.

2. Sampling observation: pour the river water into a transparent glass bottle, the water is light yellow, the water quality is slightly turbid, and there is a small amount of floc, which will be deposited after a period of time.

Third, the reason

1. Due to the sustained economic growth, villagers no longer apply organic fertilizer to farmland as in the past and rely entirely on chemical fertilizers. Excessive application of chemical fertilizer makes the soil contain too much nitrogen and phosphorus, which will enter the rivers in their hometown with the water flow. Villagers like to wash their hands by the river. Detergent is a chemical product containing phosphorus, which makes the content of nitrogen and phosphorus in river water increase accordingly. The nutrients in the water make algae and microorganisms multiply. After algae die naturally, bacteria will decompose these organic substances, and bacteria will consume a lot of dissolved oxygen in the water, which will lead to the death of a large number of fish that need oxygen in the water.

2. In order to save trouble, people often throw rubbish into the clear river, which makes the river dirty and smelly, and becomes a stinking gutter, which seriously pollutes the surrounding environment and air.

Some people often throw disposable lunch boxes, plastic cups and plastic bags to the river and leave. When the wind blows, plastic products fly around and scrape into the water and branches, often unable to move. Over time, the pollutants inside will penetrate into the deep water and the water will be polluted.

According to our investigation, industrial wastewater and domestic garbage from spacecraft gear factory and electroplating factory are sometimes directly discharged into rivers in my hometown without professional treatment, causing serious water pollution.

Fourth, suggestions:

Through the above investigation, we suggest that the town government:

1. Strengthen villagers' ideological education and prohibit dumping garbage into rivers.

2 widely publicize the importance of protecting water resources, carry out publicity and education on water resources, and enhance villagers' awareness of saving and protecting water resources.

3. The dirty water discharged by the spacecraft gear factory, Lihua electroplating factory and other units should be recycled until it does not pollute anything.

4. Relevant government departments should further strengthen management and law enforcement, strictly control industrial pollution sources and industrial wastewater discharge, and meet the national discharge standards after treatment.

Verb (abbreviation of verb) conclusion:

At present, the river pollution in my hometown is very serious, so the town government must strengthen the management, protection and supervision system of water quality, and the villagers must regulate their own behavior. Water-the source of life, everyone has the responsibility to protect and save, which needs everyone to cherish. Only in this way can our hometown make the sky bluer and the water greener.

The fifth report of water pollution investigation

Some people say that the color of the earth is green, which breeds life and indicates the birth and future of mankind. I said, she is the cradle of life and the mother of mankind. She gave all her love selflessly to the children and grandchildren of mankind. She is indeed very big and has a vast territory, but it is not endless; She is really beautiful, beautiful, but she will not be young forever; She is indeed rich and rich in resources, but she is not inexhaustible.

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

First, let's look at a funny and sad story. A tractor in Gezhouba Reservoir stalled because there was no oil. When the driver saw pieces of oil slick in the tank, he scooped up the oil slick in a bucket and poured it into the tank. The tractor suddenly drove away. It can be seen that the seriousness of water pollution in China, our city is located in the subtropical monsoon region in the lower reaches of Jiulong River, and is rich in fresh water resources. 65,438+00 years ago, you could find drinking water not far from home. However, with the development of economy and the improvement of people's living standards, water pollution is becoming more and more serious. Now, most rivers in our city are not drinkable, and some rivers can't even be used for washing. People can only rely on waterworks to supply water for daily life. Once, water was one yuan and fifty cents.

Water is the lifeblood of everything on earth. Water nourishes everything, breeds life and creates civilization. The distribution of water resources in China is extremely uneven. China's per capita water resources are less than 500 cubic meters, far below the internationally recognized critical value of per capita 1 000 cubic meters. Many large and medium-sized cities in the north stopped production or limited production due to lack of water, resulting in an annual loss of 654.38+0.2 billion yuan, and some cities in the south also experienced water shortage. At present, more than 300 cities in China are short of water, of which 108 is seriously short of water, and the water shortage is about

About100000 tons/day. Millions of people lack domestic water. ...

Facing the water resource of "dripping water is as expensive as oil", it is distressing for human beings to waste and pollute it: according to statistics, the global sewage discharge has reached 400 billion cubic meters, and the polluted water body is 5.5 trillion cubic meters, accounting for more than 14% of the total global runoff.

Water, air and food are the three elements of human life and health.

50% to 60% of human body weight is water, and the water content in children is as high as 80%. Without water, there is no life. The fresh water resources on the earth only account for 3% of the total water resources on the earth, and only 0.5% of these 3% fresh water can be directly drunk. Therefore, water is a precious resource for human beings and the source of life.

However, water pollution is quite common and serious in the world. When harmful substances in water exceed the self-purification ability of water, pollution will occur. These harmful substances include toxic substances such as pesticides, heavy metals and their compounds, various waste gases and radioactive substances.

The source of water pollution is mainly untreated industrial wastewater and domestic wastewater.