Why is renewable water called reclaimed water?

Reclaimed water and reclaimed water are two different concepts, reclaimed water (also known as reclaimed water) refers to wastewater or rainwater that can be used beneficially after proper treatment to meet certain water quality indicators, meet certain use requirements. The inside processing is the point. And renewable water is very widespread!

Theoretically, essentially all water would be renewable, but the cost of treatment would be different and the economic viability would be different. With the rapid development of society, the population continues to expand, and the water consumption has increased dramatically. Water pollution and irrational exploitation of water resources are causing a global water crisis.

Water is the source of life for human survival, and the shortage of water resources will seriously restrict the development of modern society. Only by transforming simple water pollution control into a comprehensive sustainable development of the water environment can the water crisis be solved. Reclaimed water refers to the water that meets the quality standard of reclaimed water after the sewage has been treated by the water treatment system.

Reclaimed water reuse refers to the conversion of this treated wastewater into water for reuse, and reuse it with places that can be used for reclaimed water, thereby replacing clean, high-quality raw water. It reduces the cost of sewage treatment and the discharge of sewage to a certain extent, so as to achieve the purpose of replacing clean water with pollution and saving high-quality water. For the rational development and utilization of water resources, a certain order should be followed, surface water is the most suitable for development and utilization, followed by groundwater, urban reclaimed water and rainwater, and finally long-distance cross-basin water diversion and desalination seawater.

It can be seen that the development and utilization of reclaimed water resources not only makes sewage a second water source, which alleviates the problem of water resource shortage, but also reduces the discharge of wastewater and reduces the pollution of the water environment, and the economic and environmental benefits are very significant. Due to the advantages of reclaimed water in terms of economic cost and environmental benefits compared with long-distance inter-basin water transfer and desalination of seawater, reclaimed water reuse has been valued by countries and has become one of the preferred strategies to solve the problem of water shortage. <>

Reclaimed water is the so-called "reclaimed water", is to follow the Japanese name, usually people call tap water "upper water", tap water pipeline called "sewer", "sewage is called "sewer", sewage pipe is called "sewer", reclaimed water is sewage after advanced treatment of water, but the water quality can not reach tap water, water quality between water and sewer, hence the name "reclaimed water". It should be said on the other hand, reclaimed water can also be called reclaimed water, and reclaimed water refers more to rainwater and seawater. Reclaimed water is generally water after sewage treatment.

There are also standards for reclaimed water reuse. China is a country with scarce water resources, but there is no special project for reclaimed water utilization, and there is no special fund, but only policy guidance, the amount of reclaimed water utilization in each city is determined according to the degree of water shortage in the city. <>

"Reclaimed water" is named in Japan, and the definition of "reclaimed water" has been interpreted in a variety of ways, from "reclaimed water" in sewage construction to "reclaimed water" in factories, and water quality is generally used as a marker to distinguish between them. It mainly refers to non-potable water that can be reused within a certain range after being treated by municipal sewage or domestic sewage to meet certain water quality standards. The water after deep purification of urban sewage by treatment facilities (including water after secondary treatment and further treatment in sewage treatment plants and centralized treated water such as bathing water and vegetable washing water in large buildings and living communities) is collectively referred to as "reclaimed water".

The quality of its water is between tap water (top water) and sewage discharged into pipes (sewerage), hence the name "grey water". <

Water resources are renewable resources, and water resources have a certain degree of renewability due to the existence of the water cycle, but the regeneration cycle is generally long, and human activities have caused water pollution, so water should be saved.

Non-renewable resources are non-renewable resources, which refer to natural resources that cannot be regenerated for a long period of time after being developed and utilized by human beings. The process of formation and regeneration of non-renewable resources is very slow, and it is almost non-renewable compared to human history. Such as ore resources, soil resources, coal, oil, etc.

Also called "non-renewable resources".

China's total freshwater resources are more, but according to the population, the average level of cultivated land is very low, compared with many countries in the world, China's freshwater resources problem is more serious, although China's total river runoff ranks sixth in the world, but because of China's vast territory, large population, per capita and per mu are lower than the world average.

The importance of water resources:

1. Plants and animals are inseparable from water. Rain and dew moisten the seedlings and grow strong, and all things cannot grow without water. Water is the basic unit of life and the basic conditions for the occurrence, development and reproduction of life

2. Regulate the climate. Water is an important component of the atmosphere. Although the atmosphere contains only one millionth of the world's water, the cyclic interaction between the atmosphere and water determines the movement of the Earth's water cycle, creating a climate that supports living things.

Water in the atmosphere helps regulate the global energy balance, and the movement of the water cycle plays a role in the transfer of energy in different regions.

3. Water has the function of material transportation. Water can transport a wide variety of materials and nutrients. There are two forms of water transporting substances:

dissolved minerals and whole substances. Various particulate matter in the atmosphere can settle into water bodies and then be transported by water. From this aspect, it can be seen that water can transport and diffuse environmental pollutants to a larger and wider area.

4. Water mills shape the earth's surface. Flowing water creates and drives the formation of land landforms, rearranging surface landscapes and forming deltas. Water is a key factor in the formation of soil and also plays an important role in the physical weathering of rocks.

Yes.

Water is a renewable resource, but 97% of the earth's water is seawater, and only 3% of fresh water can be used for us to drink, so although water is recycled in nature, it cannot be used, let alone inexhaustible.

The water cycle is one of the most important parts of the ecosystem. Renewable resources are natural resources that can maintain or increase their reserves at a certain rate of growth through natural forces. For renewable resources, it is mainly through the reasonable regulation of resource utilization rate to achieve sustainable utilization of resources.

The sustainable use of renewable resources is mainly constrained by the law of natural growth.

The concept of renewable resources

The resources that are regenerated and regenerated through natural action and thus reused by human beings are called renewable resources, also known as renewable resources. Such as plants, microorganisms, degradable plastic bags, water resources, geothermal resources and various natural biological communities, forests, grasslands, aquatic organisms, etc.

Renewable natural resources can continue to regenerate, reproduce and grow, maintain or expand their reserves under the specific spatio-temporal conditions of nature at this stage, and regenerate by relying on seed sources.

Generally refers to the non-fossil energy obtained from nature, renewable energy, mainly refers to natural energy such as wind energy, solar energy, hydro energy, geothermal energy and marine energy, China's renewable energy resources are very rich, for economic development and development and utilization of great potential, military resources potential is also very large.

Reclaimed water refers to the water that can be used safely and profitably after sewage is treated to meet certain water quality requirements, meet certain use functions, and has the advantages of stable water quantity, controllable water quality and local availability.

Reclaimed water is the so-called "reclaimed water", is to follow the Japanese name, usually people call tap water "upper water", tap water pipeline called "sewer", "sewage is called "sewer", sewage pipe is called "sewer", reclaimed water is sewage after advanced treatment of water, but the water quality can not reach tap water, water quality between water and sewer, hence the name "reclaimed water".

The principle of reclaimed water

Reclaimed water refers to the water that can be used beneficially after wastewater or rainwater is properly treated to meet certain water quality indicators, meet certain use requirements, and can be used beneficially. Compared with seawater desalination and cross-basin water transfer, buried reclaimed water has obvious advantages.

From an economic point of view, the cost of reclaimed water is the lowest, and from the perspective of environmental protection, sewage recycling helps to improve the ecological environment and achieve a virtuous cycle of water ecology.

There is no difference between reclaimed water and grey water. Reclaimed water, also known as reclaimed water, refers to the water that can be used beneficially after wastewater or rainwater is properly treated to meet certain water quality indicators, meet certain use requirements, and can be used beneficially. Because its water quality is between water supply (upper water) and drainage (lower water), it is called reclaimed water.

The building water system is a water supply system that reuses the domestic sewage and wastewater used in the building or community as miscellaneous water after proper treatment. Reclaimed water is the water after sewage treatment, and this kind of water is generally used to wash cars.

Water is a renewable resource. Water is an inorganic substance composed of hydrogen and oxygen, which is non-toxic and drinkable. It is a colorless and odorless transparent liquid at room temperature and pressure, which is known as the source of human life and is an important substance to maintain life.

Water is one of the most common substances on Earth. 71% of the Earth's surface is covered by water. It is an important resource for the survival of all life, including inorganic chemistry and human beings, and it is also the most important component of living organisms.

Pure water is a very weak electrolyte with very weak electrical conductivity. Water in daily life has more anions and cations due to the dissolution of other electrolytes, so it has more obvious conductivity. Water is an important resource for the survival of all life, including inorganic compounds, and is also the most important component of living organisms.

Water is one of the most common substances on Earth, with 71% of the Earth's surface covered by water.

Water is a substance necessary for the normal metabolism of the human body, and under normal circumstances, the body has to excrete water through **, internal organs, lungs and kidneys every day to ensure that toxins are excreted from the body. Children have 80% water in their bodies, older people have 50 to 60% water, and normal middle-aged people have 70% water in their bodies.

By the definition of renewable and non-renewable resources, water is entirely renewable because it can be reused.

In the short term, water is renewable, for example, rainwater, river water, lake water, but if the water cycle rate is slower than the water pollution rate, the water in some places may not regenerate due to geology, weather, precipitation, etc. First of all, in terms of environmental benefits, saving water is to protect the environment, and excessive waste of water resources will inevitably destroy the environmental deficit mold; Secondly, from the perspective of social benefits, only the harmony between man and nature can be achieved in a simple and long-term manner, and no one wants to live in a world of waste water and dirty water; Finally, from an economic point of view, although water can be regenerated, there is a huge cost to treat wastewater, and the cost of water regeneration is expensive.