There are many students in our school. After class, they run to the faucet, turn it on, and then throw water at others. Run as fast as you can without turning off the tap when you leave.
I once did such a "stupid" thing.
Every week, my sister and I play with water. When we turn on the tap, the red triangle in the water meter turns. The bigger the tap is turned on, the faster the red triangle turns, and the more water it pays.
One day, my sister and I were going to play with water again. As soon as my sister turned on the tap, the red triangle in the water meter turned again. My sister saw it and said to herself, "If the water comes out, it would be great if the water meter doesn't go!" This sentence happened to be heard by me. I thought about it and said, "Sister, if we turn down the tap, the water meter won't go." "Really?" My sister asked in surprise. "If you don't believe me, try it yourself." Sister tried it, and sure enough, it was the same as I said. My sister was happy and surprised and asked, "Who told you that?" "Nobody told me." "Yesterday, I washed my face and didn't turn off the tap. The water flowed out drop by drop, but the water meter didn't go at all. " I said to her mysteriously. "Good, good, good! Then we will quickly accumulate water. " But when she thought about it, she frowned, and her sister said, "This is too slow!" " "Never mind, as long as we accumulate from morning till noon, there will be a lot of water?" She immediately greeted him and said, "This is called many a mickle makes a mickle." Say that finish, we gave a low knowing laugh.
this "secret" was finally discovered by dad.
We rushed to tell this "secret" to Dad, thinking that Dad would praise us. Who knows, dad said to us earnestly, "Do you know what you are doing? This is stealing water! " "ah? My sister and I froze. We have all become thieves, so serious! Dad added, "If everyone is like you, who will pay the water fee for the country?"! Didn't you steal the country's water? It is said that wasting water should not be done! " After listening to my father's thought-provoking words, my sister and I blushed at once. After a while, I suddenly raised my head and pointed to the basin of water and said, "Dad, let's hand over this basin of water!" " "It's unnecessary. You can't do it again." Dad told us seriously. We answered loudly: "Yes!"
Students, if you are like this, please correct it quickly!
Water is the source of life, and we should save every drop of water ...
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Water is one of the important resources for human survival and development, and it is an indispensable and irreplaceable special resource. Without water, there is no life, and there is no progress of civilization. The water resources in the world are limited, so we can't use water indefinitely. In today's world, with the continuous growth of population and economic development, the demand for fresh water resources is increasing; At the same time, due to unreasonable utilization, the shortage of fresh water resources is becoming increasingly tense.
Historically, China is a country with frequent droughts, which is known as "nine droughts in ten years". In more than 22 years of historical documents, there have been as many as 13 major droughts. China's per capita water resources is only about 23 cubic meters, which is about a quarter of the world's per capita water. China's water resources are not only less per capita, but also unevenly distributed. The river basin area north of the Yangtze River accounts for 63.5% of the country's land area, while water resources account for 19% of the country's total. With the development of our society and economy, the gap of water is getting bigger and bigger. At present, China's agricultural irrigation lacks an average of more than 3 billion cubic meters of water every year, and there are still more than 3 million people in rural areas who have difficulty drinking water. There are more than 4 cities in China with water shortage, and there are more than 11 cities with serious water shortage. The daily water shortage of cities in China is 16 million cubic meters, which affects the industrial output value of more than 2 billion yuan and the urban population of about 4 million people every year.
it can be said that through years of efforts, China's water-saving cause has made considerable development and progress, but compared with some developed countries, we still have a long way to go. Agriculture is a big water user and a big waste of water resources. In our country, the agricultural irrigation method of "soil canal water conveyance and flood irrigation" is still widely used at present, and half of the irrigation water is lost in water conveyance, and the utilization coefficient of irrigation water is mostly only .4, which is less than half of that of some developed countries. After irrigation per square meter of water, China will increase grain production by .5 kg, while developed countries can reach 2 kg. Industry, because the existing water facilities are backward in technology, the current water consumption per 1, yuan of industrial output value in China is 13 cubic meters, 8 cubic meters in the United States and only 6 cubic meters in Japan, which is 1 ~ 2 times that of developed countries; The reuse rate of industrial water in China is only about 4%, while the average in developed countries is 75% ~ 85%. It is very serious that urban residents do not pay attention to saving domestic water. Beijing alone leaks 36, tons of water a year.
We should learn some good methods from abroad, such as: carrying out "water resources education" to raise people's awareness of water saving, building pipelines to collect sewage from urban residents and public facilities, recycling urban sewage after secondary or tertiary treatment and purification, improving toilet washing equipment and adopting water-saving household equipment, so that we can save water better!
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-a gift to World Environment Day during the Sixth Five-Year Plan
Water is the source of life, the foundation of life, and human health comes from water first. People can go without food for days, but they can't go without water for days. Now, there are 2 billion people in the world who are in serious water shortage! In other words, water is the life of 2 billion people. And there are 5 million children who die every year in the world because of drinking unclean water! How shocking this figure is! The water crisis has sounded the alarm for mankind! Saving water and protecting water resources are the top priority now!
how important water is to us! If everyone pays attention to saving water, I wonder how many people will benefit from it; On the contrary, if everyone wastes water resources carelessly, then many people may suffer from drinking water difficulties! For example, some water pipes in public places are leaking, and we can find someone to repair them, but if they are not repaired in time, it will be a waste of our drinking water. However, if the water is spilled, it will never come back, which means wasting water resources in vain. How wrong it is!
Some factories do not pay attention to the protection of water resources, and discharge industrial wastewater into rivers and lakes, causing pollution in many rivers and lakes. However, such a result makes people have to pay attention. Fish and shrimp will die if they drink such water; If humans bathe with such water, they will get sick; If human beings drink such water, it will be harmful to their health. Water ring devours the health of human beings and animals! Just imagine, even if the employees in the factory earn a lot of money, the water is polluted, so people have no clean water to drink. How can they survive then? What's the use of asking for such money at that time? How detrimental it is to others!
Some people have developed a bad habit, that is, they like to throw garbage into rivers, lakes or other inappropriate places at will for convenience. Imagine if everyone throws garbage into rivers and lakes, then a lot of water resources will be polluted; If everyone litters at will, when it rains, the rain will wash the garbage into rivers and lakes, thus polluting the water resources on which we depend. If a lot of water resources are polluted, how can we survive? I think this bad habit is a temporary convenience and a lifelong harm, and it must be eradicated!
Now, because many aspects are polluting water resources, and the pollution is getting more and more serious, there is less and less water that human beings can drink. However, without water, human beings cannot live. This means that we should take active actions to save and protect water resources now. In order to save and protect water resources, I think everyone should put an end to the bad habit of littering casually and throw the garbage into the garbage can; The uncles and aunts of the factory must resolutely prevent industrial wastewater from flowing into rivers and lakes, and they must be treated harmlessly before they can be discharged; If there is water leakage in the water pipe at home, find someone to repair it immediately; We should develop the good habit of saving water, and don't waste water resources casually (such as playing with water guns, washing vegetables and clothes can be used to flush toilets, etc.).
let's join hands to save water and protect water resources! I believe that through the efforts of all of us, we will be able to do it!
Ways to save water
When taking a bath, first get wet from head to toe with a shower nozzle, then rub the whole body with soap or bath lotion, and finally rinse it off at one time. Try to use washbasins and cups when washing your face and brushing your teeth, and don't let the faucet run.
when the washing machine is full of clothes. In addition, the last rinse water is left as the washing water for the next batch of clothes.
If you think the water tank in the toilet is too big, you can put a coke bottle filled with water in the water tank, which can reduce the amount of water flushed each time.
use as much water as possible. Wash dishes and chopsticks with rice washing water and boiled noodles, which not only removes oil but also saves water; Water the flowers and wash the car with vegetable washing water, laundry water and dish washing water; After washing your face, you can wash your feet and then flush the toilet.
When washing hands, washing in a basin is more water-saving than using long-running water, and the same is true when washing vegetables, fruits or dishes. It takes a lot of water to wash continuously with the tap on, but it can be saved by intermittent washing. Save the used water and reuse it.
The water consumption of washing machines at home is large. In order to save water, manufacturers and researchers have made great efforts to save water as much as possible on the premise of ensuring clean clothes.
This inclined shape is not for beauty or originality. The 1-degree inclined plane design has its own reasons. After the washing drum is tilted by 1 degrees, its water level is relatively deep, which can achieve a large amount of washing effect. So it saves water.
The program set by the washing machine is generally one washing and two rinsing, and water is mainly spent on rinsing. If you don't use washing powder, won't you save rinsing water?
This ultrasonic washing machine can send out 2, shock waves per second, which can "shake" dirt off clothes. A special water electrolysis device is also installed in the washing machine, which can decompose water molecules in tap water into hydrogen ions and oxygen ions, and use the decomposition and adsorption of ions on stains and dust to clean clothes. Taking a two-pronged approach, this washing machine without washing powder saves more than 3% water than ordinary washing machines.
and don't set the water level of the washing machine too high, otherwise there will be no friction between clothes, and it will waste water if it is not cleaned.
In addition to washing machines, toilets are also big users of water in families, accounting for about 35% of residents' water consumption. A family of three will wash away more than 3, liters of water a month.
technicians have developed a new type of toilet, which uses only 4 liters of water each time, saving one-third to one-half of the water compared with the existing toilet.
Its water tank is filled with water while storing air. The pressure in the water supply pipeline is used to compress the air stored inside, and then the water is pushed into the bedpan at a high speed. Different from the "pull" force of traditional sanitary ware, this new sanitary ware uses "push" force to discharge dirt, which has great impulse, so it can save water.
In fact, other domestic water in the family can also be used to flush the toilet. For example, after the last rinse, the clothes are cleaned, and the water discharged from the washing machine looks relatively clean. It is a pity that it flows directly into the sewer pipe. There is also water like washing face and vegetables, and it would be nice if it could be reused. Wu Hanping, an amateur inventor, developed a set of domestic water reuse device and obtained a national patent. He connected the sink in the kitchen, the basin in the bathroom and the water tank in the toilet to a water storage tank. Clean water from the sink and basin enters the water storage tank for toilet flushing.
Now I'll teach you the secret of saving water. 1. To use a water-saving toilet, add a 2-stage flushing accessory to the normal toilet. 2. The floating cake under the water tank is removed to form the stepless controlled water outlet.
3. The flushing time of urinal automatic flusher is shortened. 4. Water the flowers, wash the car and scrub the floor with clear water such as rice water, laundry water, dish washing water and bath water. 5. The carpet cleaning method is changed from wet or steam to dry powder. 6. Recover and reuse the water collected by dehumidifier and the wastewater from water purification equipment such as pure water machine and distilled water machine.
now that I've finished the six water-saving secrets, do you think of a better way to save water than me? Are you saving water? I think you should be saving water!
For a long time, people generally think that water is "inexhaustible", and they don't know how to cherish it, but waste it. In fact, water resources are increasingly scarce, and the urban water supply work in our city is struggling on the edge of serious water shortage, and tap water is hard to come by.
People can't live without water for a day. Water is the source of life. Cherishing water means cherishing your own life! Here, we introduce some water-saving common sense in daily life:
Brush your teeth
Waste: continuously drain water for 3 seconds, and use about 6 liters of water.
water saving: cups are connected with water, and 3 cups use .6 liters of water. A family of three can save 486 liters of water twice a day.
Laundry
Waste: The washing machine washes and drains water continuously while filling water, which requires about 165 liters of water each time.
water saving: the washing machine is washed by washing-dehydration-water injection-dehydration-water injection-dehydration, and 11 liters of water is used each time, saving 55 liters of water each time, and washing four times a month can save 22 liters of water.
In addition, centralized laundry can reduce the number of laundry; Hand washing is advocated for small pieces and a small amount of clothes, which can save a lot of water; Too much detergent will waste a lot of water.
bathing
waste: a lot of water will be wasted if the water is continuously showered for a long time.
Too much water is spilled in the bath, or when the water plug is opened and water is injected in the bath, the waste will be amazing.
water saving: intermittent water shower (such as pedal, induction, etc.). Turn off the water in time when scrubbing. Avoid showering for too long.
The water after bath can be used for washing clothes, washing cars, flushing toilets and mopping floors.
Cooking
Waste: leave the faucet open and rinse for a long time. Boiling water for too long, a lot of water vapor evaporates. Rinse vegetables and fruits with tap water.
water-saving: the oil stain on the cookware can be wiped off with paper first, and then washed, which can save water.
control the flow of the faucet, and change the continuous flushing to intermittent flushing.
car washing
waste: rinse with water pipe for 2 minutes, using about 24 liters of water.
water saving: it takes 3 buckets of water to wash the car, and the water consumption is about 3 liters. Use washing water and washing water to wash the car. Rinse with water-saving spray gun. Use mechanical automatic car washing, car washing water treatment recycling.
Water-saving tips:
Saving water is beneficial to the present age, and it will make a great contribution to the future generations. This is how the students worked out some water-saving tips for life after discussion:
First, washing vegetables with rice water and then washing them with clear water not only saves water, but also effectively removes the residual pesticides on vegetables;