Significance of reclaimed water reuse

Question 1: What is the value and significance of sewage reuse? China is short of water resources, but economic development makes the demand for water resources high, and industrial water and domestic water pose a great threat to China's water resources. Therefore, the rational utilization of water resources is particularly important, and China's Ministry of Water Resources has also put forward higher requirements for the rational, effective and sustainable utilization of water resources. With the continuous growth of population and the rapid development of economy, water consumption and water discharge are increasing year by year, and sewage treatment and reuse has less investment, short construction period, quick effect, more practicality and great significance.

1. 1 The treatment and utilization of sewage is conducive to alleviating the contradiction between supply and demand of water resources.

As we all know, human survival and development can not be separated from water resources, and global water crises often occur, which seriously threaten people's normal life. In order to solve this problem, many countries and regions have begun to make overall plans for urban sewage treatment and resource utilization. Through sewage treatment, new water resources are generated and the situation of water shortage is alleviated. However, how much water can sewage treatment produce? According to rough estimation, at present, 80% of urban water supply has turned into sewage, and 70% of this 80% sewage can still be safely reused after treatment, which means that 70% of urban water supply can be turned into reclaimed water for reuse, greatly reducing the tension of water resources.

1.2 The recycling of sewage embodies the principle of "high quality and good price, low quality and low use" of water resources.

Not everyone needs high-quality water in daily life. For example, the water directly consumed by the human body is less than 5%, while the domestic water with low water quality requirements is more than 20%, even as high as 30%. In Florida, it has been stipulated that low-quality water must be used for municipal, entertainment, landscape and environment. This regulation embodies the principle of rational utilization of water resources. At the same time, it is proved once again that sewage reuse can expand the scope and effective utilization of water resources.

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Question 2: Is there a difference between sewage reuse and reclaimed water reuse? Reclaimed water reuse; Need to meet the specified water quality standards,

At present, it is mainly the water quality standard for miscellaneous water.

Sewage reuse; Sewage usually needs to be treated,

Reuse after reaching certain water quality requirements, but the control of water quality depends on the water quality requirements of reuse units.

Question 3: What is the practical significance of "reclaimed water"? Usually, we call the water that can be directly drunk as Sheung Shui, and the used waste water as sewage. Our factory turns these sewage into reclaimed water for residents to use after primary, secondary and tertiary treatment, but reclaimed water can only be used for non-human contact water, such as river replenishment, green irrigation, road flushing, toilet flushing, car washing and so on. Besides not being drinkable, reclaimed water is not suitable for bathing, washing clothes, washing vegetables, mopping the floor and so on. If you still don't understand anything, you can send me a message. We can learn from each other. I hope you can support China's reclaimed water industry! !

Question 4: What is reclaimed water reuse? What is the standard of reclaimed water reuse? The quality of reclaimed water must meet the following conditions:

1.

Meet the hygiene requirements. Its indicators mainly include the number of coliforms, the total number of bacteria, residual chlorine, suspended solids, COD, BOD5, phosphide and so on.

2.

Satisfy people's sensory requirements, that is, the feeling of being fast. Its measurement indicators mainly include turbidity, chromaticity, odor and so on.

3.

Meet the structural requirements of equipment, that is, the water quality is not easy to cause serious corrosion and scaling of equipment and pipelines.

Its determination indexes include pH value, hardness, evaporation residue, soluble matter and so on.

The research on reclaimed water in China is getting deeper and deeper. In order to ensure the safe, reliable and reasonable utilization of reclaimed water as domestic miscellaneous water, the Water Quality Standard for Domestic Miscellaneous Water was officially promulgated in September (CJ25

1-89).

Question 5: What does the water in the five elements represent, and what is the representative significance of the water in the five elements? The theory of five elements was summed up by the ancients in their life practice. They believe that everything in the century is composed of five elements: gold, wood, water, fire and earth, which have different forms of expression in different things.

China's classical philosophy holds that "five elements" are five basic elements in the universe. It represents a wide range.

1, the orientation of water in the five elements: north.

2. The season (season) represented by water in the five elements: winter.

3. The color represented by water in the five elements: black.

4. The five internal organs represented by water in the five elements: kidney.

5. Emotion represented by water in the five elements: shock

6. The heavenly stem represented by water in the five elements: Ren.

7. Haizi, the earthly branch represented by water in the five elements.

8. Eight trigrams represented by water in the five elements: Eight trigrams.

Water rules wisdom, its cleverness, its kindness, its salty taste and its black color. A man with a rich face, dark complexion, colorful, clear language, meticulous thinking, resourceful and knowledgeable. If you go too far, you say right and wrong, and you are greedy. If not, the characters are short, temperamental, timid and repetitive.

Question 6: What is the significance of reclaimed water to improve the utilization rate of water?