学校环境问题英语作文合集2篇 作文怎么写汇集20篇

My name is ZhangYanYu. Im in Grade Seven. I like to go to school. Now,I want to tell you something about our class.

Our classroom is very beautiful. There is a blackboard on the front well. There is a teachers desk in front of the blackboard. There are two boxes of chalk and an eraser on the desk. There are many nice maps on the wall. There are some beautiful flowers on the sill. Our classroom is very nice and clean. There are two tall trees behind our classroom.We ofter play games wiht teacher under trees. There is a small garden on front of our classroom.Its nice .There is small river not far from our school ,in front of the garden. We often swim in it in summer.I like our class.I like our school.

Environment and development

Today, the environmental pollution has become an increasingly serious problem, because The development is not in harmony with the environment,The following are some of the reasons for the formation of environmental problems/phenomenon

The society is developing rapidly,But the environment appeared serious problem,First, some factories discharge waste water and waste gas,Second, some people throw rubbish,Some people left writing on the Tourist attractions ,Third, some people cut down trees and kill endangered animal

In order to protect the environment and solve environmental pollution, I have some suggestions

First, government departments should strengthen supervision, and take appropriate punitive measures,Second, social development should not to destroy the environment

Third, everyone should have the awareness of environmental protection,If each of us to participate in environmental protection, I believe that our life will be more beautiful.

.

Environmental problems are becoming more and more serious all over the world.For example,cars have made the air unhealthy for people to breathe and poisonous gas is given off by factories.Trees on the hills have been cut down and waste water is being poured continuously into rivers.Furthermore,wherever we go today,we can find rubbish carelessly disposed.Pollution is,in fact,threatening our existence.

The earth is our home and we have the duty to take care of it for ourselves and for our later generations.Fortunately,more and more people have realized these problems.Measures have been taken to cope with these problems by the government.Laws have been passed to stop pollution.I hope the problem will be solved in the near future and our home will become better and better.

全世界的环境问题变得越来越严重.例如汽车污染的空气影响了人们的呼吸,工厂释放污染的气体,山上的树木被砍伐,污水不断被排人河里.另外,无论我们走到哪里,到处可见随意丢弃的垃圾.事实上,污染正威胁我们的生存.

地球是我们的家园,我们有责任为我们自己和我们的后代去照顾好它.庆幸的是,愈来愈多的人们已经意识到这些问题.政府已经采取了很多措施去解决这些问题,法律已被通过以制止污染.我希望这些问题在不远的将来能得到解决,我们的家园变得越来越好.

My name is Tom Lee. I am fourteen. I study at No. 4 ICT School, not a very big school. There are about six hundred students in my school. There is only one building in our school, but we have a very big playground. There are ten computer labs and one library in the building, and there are many computer books in the library. We often go there in the afternoon.

我的名字是汤姆李。我十四岁。我在第二通信学校学习，不是非常大的一个学校。在我学校大约有六百名学生。我们学校只有一栋楼，但是我们有一个非常大的操场。在楼里面有十间电脑室和一个图书馆，图书馆里也有很多计算机的书籍。我们经常在下午去那里。

We are busy every day. We have four classes in the morning, and two in the afternoon.

我们每天都很忙。我们上午有四节课，下午两节。

ICT is my favorite subject and our ICT teachers are very patient and helpful. I am good at ICT, but bad in history.

通信是我最喜欢的学科而且我们学学校的通信老师是很有耐心也很乐于助人的。我的通信学得很好，但是历史则学得不好。

在学校“健康第一”的教育思想指导下，卫生室积极开展学校环境卫生工作的宣传教育与包干清扫工作，让健康卫生意识深入每个学生，深入每个家庭。师生的环境卫生意识不断提高。

一、建设一支队伍

要搞好学校环境卫生工作，需要建设一支强有力的卫生保洁队伍。在党支部、校长室领导下，32个班主任具体抓好各班的卫生保洁工作;每班有两名卫生员协助老师关心教室及保干区的卫生打扫工作，全校师生人人都有卫生保洁意识。

三年级以上的卫生员同时担任学校环境卫生检查评比工作。卫生室对这些同学进行每月一次的培训活动，让他们以学校小主人的身份参加学校的卫生管理工作，不仅提高了他们卫生保洁意识，同时也锻炼了他们的工作能力，从小培养了他们为大家服务的思想。

二、做好检查反馈工作

为改善学校环境卫生面貌，卫生室定期做好检查反馈工作。每月一次将检查评比结果公布于校园网，并为成绩好的班级发流动红旗，以资鼓励。卫生室平时做好一天四次的巡视检查工作，发现问题及时解决，并把发现的问题与解决的方法在校园网上公布，以引起大家的重视。

三、配合学校完成上级部门的工作

根据《关于开展“人人动手、清洁家园”活动的方案》的精神，结合我校实际情况，制定《开展“人人动手、清洁家园”活动方案》。在今后一个阶段，结合南汇区建设健康城区，创建健康校园等工作的开展，在全校广泛开展“人人动手、清洁家园”的活动，将进一步改善学校及校园周边的环境卫生面貌。

四、积极开展卫生防病工作

学校是人口密集的地方，人口流动大，给防病带来了很大的困难，卫生室在在学校党支部、校长室的领导下，根据实际情况积极开展卫生防病工作。

五、预警应急

学校的防病工作领导重视，工作抓在实处，基本上能预防、控制各类学生中常见的传染病，一旦发生，学校传染病防控工作领导小组将按照政府统一部署，启动应急工作预案。

围绕我校健康第一的指导思想，按照建设健康校园的工作要求，卫生室做到思想上重视，制定并完善相应的规章制度;加大宣传力度，强化卫生要求和落实包干区责任制以及各组室内外清洁等一系列突出问题。加强卫生防病工作，提升广大师生的健康意识，为我校的健康教育工作奠定良好的环境基础。

I read a piece of news recently. It says that in Japan marly businessmen ave selling fresh air to customers.and now it is becoming more and more popular. Why?——Fresh air is getting less and less in Japan, and so is it in the U. S. A.

In fact, environmental pollution is a very serious problem the whole world is facing.

it is mainly caused by the waste products released from artificial substances, industrial production and increased consumption of goods. Bedsides, the use of chemical substances in agriculture also causes environmental pollution. Look at the sky, you can see that dense smoke is being released from the high and big chimneys; those dirty and poisonous substances are flowing into the rivers that we use for drinking water and millions of tons of waste products are heaping around us.

How to change this condition?More and more countries are trying to work out some effective means to bring it under control, but no great success has been made.

写作题目

Individuals can do nothing to improve the environment; only governments and large companies can make a difference. To what extent do you agree or disagree?

范文

Nowadays, an increasing number of people are concerned about environmental protection and regard it as one of the most important challenges. However, whether only governments and big firms have resources and powers to preserve our environment is a controversial issue. My view is that every single citizen could also make a huge difference.

In the first place, it is clear that it is human activities that have the greatest impact throughout the history. Both environment contamination and conservation are the long-term process, and no single government or big company can meet this challenge alone. So whoever created the problem should be responsible for solving it; environment protection needs every one of us to continuously participate in.

Moreover, the publics wills and behaviors have critical influence on governments policies and companies strategies. For example, if everyone says no to plastic shopping bags and paper cups, the companies that manufacture such products will switch to environmental-friendly substitutes in order to survive in the market.

[关于改善环境质量英语作文

How to protect the environment.

Good environment can make people feel happy and fit . To improve the environment means to improve our life.

We should plant more trees and flowers around us . We shouldn’t cut them down . We should stop factories from pouring waste water into the river and waste gas into the air.

Whenever we see litter on the ground , we should pick it up and throw it into dusbins. Never spit in public. Don’t draw on public walls. It’s our duty to protect the environment.

[提倡保护环境的英语作文

As time goes by,the importance of constructing a green campus is gradually executed in current society,not only for that the campus is the place which aimed at developing talents,but also for the campus is a symbol to a city.

The green campus not only refer to green environment,but also refer to a new idea about the ways of educating and managing the students,mainly letting them accept the knowledge and build up the

spirit of loving nature and being responsible for the environment,also,letting them take an active part in the actions of protecting the environment and keep the idea of sustainable development in mind.

In order to construct the green campus,we should do from two aspects.First of all,we should make every effort to study hard,aimed at becoming the knowledgeable ones with high qualities as well.Secondly,we should make ourselves more comprehensive,doing from the team-work spirit,the environmental consciousness and so on.Besides,we should be concerned about society,our motherland and the whole world,as well as learning to innovate and actively practice.

1、We are using up our natural resources and at the same time polluting our environment with dangerous chemicals. If we continue to do this, life on earth cannot survive.

我们一边耗尽自然资源，一边产生化学污染物。如果继续这样做的话，地球上的生物将难以生存。

2、Protecting the environment is every mans responsibility.

保护地球环境是每一个人的责任。

3、if everyone could make a big contribution to environmental protection, our home will become much more beautiful.

如果每个人为环境保护作出一点贡献，我们的家园会变得更加美丽。

4、Protecting the environment，everyone，s duty.

保护环境，人人有责。

5、The short life of the flowers away, leaving behind the beauty is forever.

带走的花儿生命短暂，留下的美丽才是永远。

6、Governments of many countries have established laws to protect the air, forests and sea resources and to stop environmental pollution.

许多国家制定了法律来保护大气、森林和海洋资源，制止环境污染。

7、The protection of trees, that is, to protect themselves。

保护树木，就是保护自己。

8、In addition to the photos, nothing taken away; In addition to the footprints, nothing left.

除了相片，什么都不要带走;除了脚印，什么都不要留下。

9、Have green trees, have the pulse of the earth.

树木拥有绿色，地球才有脉搏。

10、Earth is our home, you rely on green.

地球是我家，绿化靠大家。

[保护环境英语作文例句

老师们、同学们：

蓝天碧水、阳光明媚、鸟语花香、空气清新是我们梦寐以求的优美家园，但是废气、污水、白色垃圾、重金属侵蚀了她，环境污染已危及到我们的健康与生存。有谁会想到，那些泛着刺眼的白色的饭盒会污染多少土地?有谁会想到，那些废弃的塑料袋飘散在风中，会污染家园的多少角落?

保护家园，就是保护自己;热爱家园，就是热爱生命。我们要用爱心去关注环境的变化，用热情支持传播环保的观念，用行动肩负起环保的重任。近年来，我院精心绿化、美化、净化校园环境，营造人文、和谐的育人氛围、拓展各种渠道，普及绿色理念、倡导绿色文明。在6月5日环境日到来之际，后勤服务中心特向全校师生发出以下倡议：

1、以节水为荣——随时关紧水龙头，别让水空流。

2、以节电为荣——省一度电，少一分污染，多一分贡献。

3、以节粮为荣――爱惜粮食，让节俭美德代代传。

4、珍惜纸张――参加植树造林，保护森林资源。

5、养成好习惯――不随地吐痰，不随地乱扔乱倒废弃物。

6、少用一次性制品――节约能源，维护环境整洁。

7、爱护一草一木――做绿色使者，保持空气清新。

8、做动物的朋友――善待生命，与万物共存。

9、选择环保购物袋，养成自觉节制使用塑料袋的良好习惯。必须要用塑料袋时，能利用的要充分利用,能少用一只是一只。

10、自觉保护生活环境，积极参与校园绿化美化活动，保护绿地花木。

地球的安宁，世界的美好，需要全社会的共同努力。老师们、同学们!你心中有一个绿色之梦吗?请参加我们的环保活动吧!让我们把环保承诺变为实际行动，为改善校园的环境质量尽力。最后，让我们用手牵手，托起绿色的希望!

We want to hold a green Olympic Games ,so everyone should do something

useful to protect the environment ,whether it is big or small.

We should do something to stop people from doing bad things to the

environment .We should put rubbish into dustbins instead of throwing it about.

Everyone must care for flowers ,grass and tress in public .We shound collect

things like paper ,plastic bags our neighborhood as well ,it’s necessary to

plant more trees every year .

It is everyone’s duty to make our neighborhood much better with our hands

minds .Let’s make a contribution to protecting the environment and the Plympic

Games successfully.

On June 5, 1972, the United Nations was held in Stockholm the United Nations conference on the human environment, the meeting adopted the declaration of the human environment, and puts forward 5 June every year would be a "world environment day". In October the same year, the 27th United Nations general assembly adopted a resolution to accept the proposal. World environment day, is the United Nations to promote global environmental awareness, improve government attention to environmental problems and take action to one of the major media.

The United Nations system and governments, every year on June 5 this day to carry out various activities to promote and stress the importance of protect and improve the human environment.

The United Nations environment programme (unep) announced at the beginning of each year the world environment day theme, and published in the annual world environment day annual report on environmental conditions. During this period of Chinas state environmental protection administration issued the environment bulletin.

From June 5, 1985, China began to commemorate the world environment day activities, with "youth population, environment" as the theme. Since then, every year on June 5, the country hold commemorative activities. 1993 Beijing was elected to the celebration of the city, its theme is "to break the cycle of poverty and environment". Released in April 2014 revision of the environmental protection law of the Peoples Republic of China, article 12: for environment day on 5 June every year.

1972年6月5日联合国在瑞典首都斯德哥尔摩召开了联合国人类环境会议，会议通过了《人类环境宣言》，并提出将每年的6月5日定为“世界环境日”。同年10月，第27届联合国大会通过决议接受了该建议。世界环境日，是联合国促进全球环境意识、提高政府对环境问题的注意并采取行动的主要媒介之一。

联合国系统和各国政府，每年都在6月5日的这一天开展各项活动来宣传与强调保护和改善人类环境的重要性。

联合国环境规划署在每年的年初公布当年的世界环境日主题，并在每年的世界环境日发表环境状况的年度报告书。中国国家环保总局在这期间发布中国环境状况公报。

中国从1985年6月5日开始举办纪念世界环境日的活动，以“青年人口，环境”为主题 。自此之后，每年的6月5日全国各地都要举办纪念活动。1993年北京被选为举办庆祝活动的城市，其主题是“打破贫穷与环境的怪圈”。2014年4月修订公布的《中华人民共和国环境保护法》第十二条：每年6月5日为环境日。

1.你的学校位于什么地方

2.校园景色如何

3.你对同学和老师们的感受如何

4.请谈谈你对你学校的感觉等..

（在哪自己写吧）.First here is our favourite place our beautifui garden many trees and many flowers in it. then you can go into it .Now,you know why we love it right .we can write red and chat in it.(tell you a secret:I like it because it is cool in summer and warm in winter

Now,I will tell you more about my friends &teachers. Over here teachers are friendly to us,so we never say a bad word about them.Because of these,students can get good grades at my school.(Would you like to come?)

I think my school is one of the best schools in the world.Because we have good teachers good students and everything is beautiful. I like it, every at it likes it.

[我的学校初中英语作文

Thanks to the Hope Project r, great changes have taken place in a country school,

This school used to be called Lijiazhuang School. Most of its pupils left school because their families were too poor to pay for their education. The only unsafe schoolhouse had to be used as classrooms.And all the teachers shared one room. The playground was nothing but an open land.Things are different now. All the children who left school have come to continue their studies. In the schoolyard stands a two-storeyed teaching building. There are rooms for music, art and com-puter teaching. The school is well equipped with sports goods.

The Project benefits the school a great deal. For this reason, it was renamed Hope School.

多亏希望工程的实施，一所乡村学校发生了巨大的变化。以前这学校叫做李家庄小学。由于家庭困难交不起学费，大部分学生辍学了。那座仅有的危房要用来做教室，所有的教师们共住一间。操场上除了空地什么也没有。现在情况可不同了乙辍学儿童都回校继续学习。一座双层的教学楼矗立在校园内，有音乐室、美术室，还有教学用的电脑室。学校的体育器材配备精良。

希望工程给李家庄小学带来了极大的好处，学校也因此改名为“希望小学”。

[ 希望学校英语作文及译文

As we all know, pollution is harmful to living beings. There are many

different types of pollutions in this world. For instance, water pollution, air

pollution, noise pollution and so on. Water pollution cause many kinds of

disease that have negative effects on human beings, sometimes the diseases will

take people’s life away. Dirty air will increase the rate of getting lung

cancer. While the noise pollution will cause insomnia. People’s health condition

will be damaged.

In my humble opinion, people should take measures to control the pollution.

Recently, not only the government, but also individual has taken part in the

action of protecting the environment. This is a good sign. Rivers are being

cleaned, air is purified, and the people come to realize that the importance of

protecting the environment.

However, this is not enough, the problems are still exist. Not all of them

have been solved. Some factories are still pouring dirty water into the rivers

or give off the toxic gas into the sky. We should know that protecting the

environment needs everybody’s effort.

industrial pollution is the industrial production process of the formation of gas, waste water and solid emissions on the environment pollution. industrial pollution is mainly concentrated in a few industries. paper, chemical, steel, electricity, food, mining, textile and other seven sectors accounted for the total wastewater discharge 4 / 5. paper and food industry accounts for cod emissions of cod emissions 2 / 3, non-ferrous metallurgical industry, heavy metal emissions of heavy metals emissions account for nearly 1 / 2. industrial pollution is the industrial enterprises in the production process, including human biological survival and reproduction of the natural environment against. pollution is mainly from the production of the "three wastes" (waste water, waste gas, waste) and all kinds of noise caused can be divided into water pollution, air pollution, waste pollution, noise pollution.

industrial pollution hazard. first, a large number of industrial production in the discharge of untreated water, gas, slag and other hazardous waste, it will seriously damage the ecological balance of agriculture and natural resources on the development of agricultural production caused great harm; second, industrial "three wastes" of the industry production itself is also very serious hazards, toxic pollutants can corrode pipes, damaged equipment, affecting plant life, etc.; third, environmental pollution, rampant pollution, directly endangering the health of the masses; also some contamination is not easy to find, after the damage that has very serious

Humans have only one earth. He is the cradle of life, is the homeland of all mankind. However, the environmental pollution and ecological destruction have on human social and economic development and peoples normal life constitutes the real threat. Take good care of the environment, advocate civilization, is the human moral and responsibility.

We want to clean the earth, eager to healthy earth, eager to the homes of environmental protection, eager to green, health, community health... Let us use love to pay attention to changes in the environment, with passion to spread the idea of environmental protection, with actions to shoulder the important task of environmental protection. Starts from me, start from now, intravenous drip minor matter, starts from the side the environmental commitment into action.

Remember, protect the earth, is to protect ourselves.

人类只有一个地球。他是生命的摇篮，是人类共有的家园。然而，环境污染与生态破坏已经对人类的社会经济发展和人们的正常生活构成了现实威胁。爱护环境，崇尚文明，无疑是人类自身的道义和责任。

我们渴望干净的地球，渴望健康的地球，渴望环保的家园，渴望绿色，健康，卫生的社区……让我们用爱心去关注环境的变化，用热情去传播环保的观念，用行动肩负起环保的重任。从我做起，从现在做起，从身边的点滴小事做起，把环保承诺变为实际行动。

记住，保护地球，就是保护我们自己。

6月5日( June 5)是世界环境保护日， 我们周围的环境变得越来越糟糕，污染越来越严重。环境问题影响着人们的工作，学习，生活等，而我们的工作，生活，生产等又使环境污染越来越严重....。。如何保护我们的环境? 请以“ How to protect/save our environment/world? ”为题写一篇短文。

提示：存在问题：1.水污染越来越严重;2.砍伐森林严重;3. 大气污染严重;4. 白色垃圾等。

要求：如何改善/保护环境?至少：3---4个方面， 80字左右的。

★ 范文

How to protect/save our environment/world?

The environmental pollution is worse and worse /more and more seriously today. Water is polluted; we have no clean water to drink. Many trees are cutting down, some animals is getting less and less. Some factories are pouring dirty air in the sky, the population is increasing faster and faster, resources are getting less and less…etc. Not only does it affect our lives and health, it but also has a great affection in the future. Peoples health has been greatly affected by air, noise and water pollution. Many people died of diseases. In order to live a better life, we need protect our world。

We shouldn’t throw away rubbish everywhere. We want to recycle, reduce, reuse things .Don’t waste things. This saves money and reduces pollution. Use things for as long as possible. We don’t use plastic bags. We must plant more trees and stop the people cutting them .We hope our world becomes more and more beautiful。

Although our country resources, abundant natural resources. But, you know? All these are not enough, more important is to pay attention to environmental protection!

I think the government should advocate environmental protection, more involved in environmental protection, contribute to environmental protection, organize environmental protection is the most critical. You said, is it?

First of all, should tell the public, to pay attention to every green thing, actively do environmental protection work, dont throw rubbish, see garbage to pick up in time. Second, want to throw the waste battery is the problem to solve, I should take this matter to do better, in some places put some recycle used batteries, for people to take every day. As a result, whether living in remote areas, or live in the bustling place, can easily dispose of used batteries, never going to happen that people dont know how to deal with waste battery threw the waste batteries into the dustbin. Finally, the government should increase the position of a environmental protection worker, let more people involved in the environmental protection work.

In order to environmental protection, take action!

我们的祖国虽然资源、物产比较丰富。可是，你知道吗?光光这些都还不够，更重要的是要注重环保!

我觉得，政府应该多多提倡环保，多多参与环保工作，为环保做贡献，组织好环保是最关键的。你们说，是吗?

首先，应该告诉市民，要关注每一件环保的事，积极做环保工作，不要随手扔垃圾、看到垃圾要及时捡起。其次，要把废旧电池该扔哪的问题解决好，应该把这件事给做得更完善：在一些地方分放一些回收废旧电池的筒，每天都有专门负责的人去取。这样一来，不管是住在偏远地区，还是住在热闹的地方，都可以很方便的把废旧电池处理了，再也不会发生人们不知道废旧电池怎么处理，就把废旧电池扔进垃圾箱里的事了。最后，政府应该增加一个环保工作者的职务，让更多的人投身于环保工作当中!

为了环保，行动起来吧!

我国的城市河流和湖泊污染情况是非常严重的,城市河流水有不同程度的富营养化问题。以下是小编给大家整理的形势与政策论文：城市水环境的问题探讨的内容，欢迎大家查看。

摘要: 随着经济快速发展，城市生态形势压力也与日俱增，水环境问题已成为制约社会发展的大问题，环保基础设施建设严重落后，城市生活污染物未得到有效控制，工业污染源未得到严格治理，农业污染日益突出，部分河段水质受污染严重，河水发黑发臭，完全失去水质功能。本文主要对城市水环境治理及污染防治对策进行了分析探讨。

关键词：城市规划;水环境质量;污染防治;对策

城市生态环境是城市宜居水平评价和城市经济发展的重要因素。作为城市生态环境的重要组成部分，城市水环境对生态环境的治理和改善有着重要的影响。受传统经济发展理念的影响，我国城市水环境污染情况不容乐观。而且在城市扩建过程中还造成了大量周边湿地的消失，造成了城市生态环境、水环境的进一步恶化。针对这样的情况，我国近年来加大了城市生态环境治理力度。从城市规划与发展的角度出发，恢复城市周边湿地环境、改善城市水环境与生态环境。

一、城市水环境的基本特点

1、城市用水的特点

生活用水和生产用水是城市用水的主要类型，由于城市人员密集、工业化生产程度高，所以，城市用水需要较高的质量、较大的供水量、稳定的供给，这对城市采水、供水和用水来说有着不同于农村的特点。

2、城市用水的依赖性强

城市由于用水量大、供水要求高，所以，单纯依靠城市区域的供给和开采往往难于满足城市发展的需要，因此，大众城市往往需要从城区周边或外地调水来满足城市的用水需要，“引滦入津”、“南水北调”就是这样的举措。

3、城市水环境脆弱

在我国北方，城市生活和生产用水大都在简单处理或未经处理就直接排放到环境之中，在日积月累的大量污染的影响下，城市水环境受到了严重破坏，并且这一现象有蔓延和恶化的趋势，造成水环境的脆弱和生态的破坏，影响城市深入地发展。

4、城市地下水环境恶化

城市地下水环境恶化来源有两个，一是，城市生产和生活中大量污染源渗入地下，造成对地下水资源和水环境的破坏;二是，城市地表硬化导致城市地面下渗量的减少，在大量开采地下水的同时，没有必要的补充，出现水环境的恶化。

二、城市水环境综合治理方法

1、以人为本，科学发展

把维护广大人民群众的根本利益作为第一点，把群众最关心、最直接和现实的水环境保护问题为重点，转变发展观念，重视生态文明建设，加快建设资源节约和环境友好社会，走科学发展道路。

2、优先保护饮用水源

合格的安全饮用水源是人民生活的必需品，水环境治理应突出重点，优先保护饮用水源，确保群众饮水安全。

3、强化节能减排、效益原则

与区县减排工作挂钩，把COD削减量考核指标纳入到区县水环境治理目标体系中，明确各区县污水处理率、污水处理厂运行负荷率等量化指标。切实保障三个达标，即污水处理率必须达标、污水处理厂的运行负荷率必须达标、COD的减排必须达标。合理安排资金，对节能减排效果明显，有一定经济基础，技术条件成熟，符合国家和行业产业政策的项目优先考虑。

4、治本方针

突出截污治污。河道沿线村镇、企业密集，污染来源复杂。为此，河道治理将坚持“先截污、后清淤、先治理、后换水”的原则，周密排查河道沿线污染来源，大力实施清淤、截污、生态护坡、河岸绿化等措施，加强河道水体自净和生态修复功能;在突出截污治理的同时，各区县还将坚持污水处理厂、配套管网同步建设，大力提升现有污水处理厂运行负荷率，妥善解决污水出路，切实提高河道水环境质量。

5、加强协作，落实责任

市水务局于去年成立了河道水环境考核办公室，将清水工程已治理河道纳入考核范围，各区县按照属地管理原则在本辖区内建立水环境管理机构和相关管理机制，有效巩固水环境治理成果。此外，目前市政府已正式批准本市河道水环境实施“河长制”管理意见，即将公布全市主要河道“河长”名单，构建完善的河道水环境管理长效机制，为今后本市水环境由加强治理向强化管理转变打好基础。

三、城市河流水防治和改善技术的应用

1、底泥疏浚和河床微生态系统修复

在河流洪水、蓄洪功能上,底泥疏浚主要体现在河流利用水面变化增加行洪、蓄洪能力。作为沉积物沉积,有的湖泊水的深度可以被调整,从而减少其调节和存储功能。增加城市河湖疏浚河道水容量后,以确保顺利排出这些河流洪水,保障人民群众的生命和财产安全,也避免了洪涝灾害。底泥疏浚是水环境综合整治的一项重要措施,滇池、巢湖、太湖等水环境综合整治已被广泛使用。可见,合理的疏浚清除污染物,对于生态系统的恢复和重建具有非常重要的作用。

2、人工增氧技术

人工增氧技术是基于城市河流水污染后缺氧的现象,人工的向水体中注入空气或氧气,从而加速水体复氧的进程,提高水体的溶解氧水平,恢复和提高在水中好氧微生物的活力,使河流水的污染物净化,从而改善河流的水质。河流氧气一般使用固定和移动站充氧平台两种形式。河道人工增氧技术的应用,能够使得水质不同时期达到消除黑臭、减少水体污染负荷、促进河流生态系统恢复的目的。

3、调水引流水质改善技术

贯穿城市的内河河网水系,因为控制结构的限制,使得河流水不能够连接到外部的水体,造成水处于静止的状态,当天气炎热的时候,溶解在水中的氧气浓度就会降低,容易导致水质变坏。通过改进水域水动力条件,提高水体污染物的稀释能力,增强局部水体的自净能力,许多城市在水资源利用和部署中,通过跨流域调水工程,解决空间分布不均的问题。

4、植物修复技术

对于河道河流自然恢复应采取生态化措施,主要是通过恢复河岸植被、恢复天然湿地,在河岸种植芦苇、浮萍、睡莲、水生植物和其他湿地植物,以提高水体的净化能力。种植水生植物的城市河流水,一方面能够通过植物的根系的吸收,从而降低和遏制富营养化趋势;另一方面通过种植水生植物,可以也起到美化水体环境,提高城市的景观的效果。

5、生物净化技术

生物净化技术是充分利用天然水体自净的功能,采用人工措施,创造更有利的环境有利于微生物的生长和繁殖,并培养出大量的微生物从而增强水体净化能力,以提高纳污水体氧化降解有机物能力的一种净化方法。目前国内外最常用的生物净化技术是曝气技术、生物膜技术与投菌技术。生物净化技术,其成本低,对环境的影响小,能够有效降解污染物,是水体污染处理的最佳选择之一。生物净化技术及产品的开发,特别是分解菌株的培养也将被筛选到河流水污染控制技术之中,是未来城市水污染防治和治理的发展趋势。将具有特殊分解能力的菌种添加到河边,能够将水体中有毒有害物质分解为无毒无害的物质,从而加速有毒物质的分解、转化,不仅可以提高河流的净化能力,而且也实现了河流的生态修复。生物产品的运用将成为人工增氧、底泥疏浚等现有防治技术的有益补充。

四、结束语

综上所述，我国的城市河流和湖泊污染情况是非常严重的,城市河流水有不同程度的富营养化问题。目前,在城市河流污染环境下,需要完善城市管线网络,并建设污水处理厂,具体的水污染防治技术措施有:底泥疏浚、人工增加氧气、引水排水水质改善、植物修复、湿地水净化技术等河流强化净化技术。能够应对不同的城市的污水状况,使得城市河流水污染的情况得到了有效的控制,促进城市河流的健康发展。

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