Become A Comprehensive Expert From My Dad

After returning home.

Ye Yu looked at the fresh water purifier materials he bought, and started to assemble them without any hassle.

The babies all stared curiously, and followed Ye Yu's order step by step to assemble.

In no time, a simple fresh water purifier is assembled.

Immediately afterwards, Ye Yu took the children to the bathroom to fetch a glass of water.

Then I grabbed a handful of soil from the balcony flower pot and put it in.

The babies followed suit, and the water in everyone's hands was cloudy.

Come on, follow daddy now.

Pour this dirty water in first, and then observe carefully.

See how dirty water changes color as it flows from top to bottom.

Now, first close the three discs between the four layers of filters.

This is to allow dirty water to stay on each layer of filter material for your observation.

The babies followed suit.

There are four layers of this filter, with a disc stuck between every two layers.

Only by rotating the disc open can the water on it continue to flow down.

Ye Yu analyzed: The first layer of white filter material you see is called granite stones.

Granite stones are relatively rough, mainly to filter garbage with a relatively large diameter.

Moreover, due to the strong wear resistance and hardness of granite stones, they can be replaced once a year.

And it will not cause secondary pollution in water treatment, so it is widely used.

The babies nodded thoughtfully: It is a good thing for environmental protection that does not cause pollution.

Ye Yu nodded: It's really smart.

Then observe the water quality on the first layer now, what do you see?

Ye Xiaoxi was the first to raise her hand to speak: I saw a few small black stones staying in the first filter.

The water is still cloudy at this point.

Ye Yu nodded: Next, open the first disc and let the dark yellow water flow down.

Now what do you see?

Older Ye Shuangshuang said: After the dark yellow water was filtered through the second layer of white matter, the color turned orange-yellow.

There's a lot of yellow dirt covering the material.

But the water is still dirty.

Ye Yu nodded: Yes, this second layer of white material is called porcelain sand.

Porcelain sand is finer than granite stones, so it is better at filtering out large particles.

And it can also retain the mineral components in the water, which are the nutrients our body needs.

In addition, porcelain sand can also kill viruses and bacteria to a certain extent.

He, like quartz sand, will not cause secondary pollution.

Also, the service life can be as long as 10 to 12 months, so it is widely used.

Now let's open the second layer of discs and let the water flow continue down.

Now what do you see?

The old Sanye Rourou said: After the water flows to the third floor, the color is not so muddy, but it is still quite dirty.

I don't seem to see any obvious silt, and the silt seems to have been absorbed.

Ye Yu rubbed her head: Yes, so this layer of black substance is called activated carbon.

Activated carbon can adsorb many harmful substances that are invisible to the naked eye.

So after reaching this layer, the water quality will gradually become clearer.

Normally, the tap water we use is sanitized with bleach.

I'll take you to the factory later to see what it looks like to use bleach to sterilize the factory water.

After sterilization, there is a harmful substance left behind, chlorine, which is a carcinogen.

So you can't drink tap water, because it will cause cancer.

The babies looked flustered: The tap water is terrible, Dad, we must drink boiled water and purified water in the future.

Ye Yu smiled, this is what the kindergarten teacher wants the children to understand.

Okay, now open the third layer of discs to let the water flow into the fourth layer of filter material quartz sand.

Let's see what happens next.

Old Siye Qingqing said: Father, the water quality in this layer has become clearer!

But I saw a lot of tiny floating objects in the water.

It's not the same as the pure water we drink.

Ye Yu nodded: Yes, quartz sand can only filter most of the tiny suspended matter.

And the reason why printing is widely used is because it has a special function.

That's to reconcile the pH of the water.

To put it simply, if there is no quartz sand, the water quality may be acidic, or it may have other tastes.

After using such water, it will destroy the acid-base balance in our body.

It will make us sick, so we must filter the acid and alkali to make the water harmless to the human body.

In addition, the dust in the water must be filtered with finer things.

Look down, there is a thin layer of filter paper under the quartz sand.

Actually, the water we use for evolution is the most important function of this layer of filter paper.

This filter paper is very powerful, it only allows water molecules to pass through.

A water molecule is pure water.

Like dust, it does not belong to water, so it cannot pass through filter paper.

Look at the small beaker below, is the water very clear?

The babies nodded.

Old Wu Ye Dige said: Father, can the clear water be drunk directly now?

Ye Yu nodded: Yes, now take out this water and taste it.

Everyone did the same, and put the water in the last layer of small beakers to their mouths.

At this time, the sixth child, Ye Ling'er, smacked her lips and frowned.

Dad, why is this water different from pure water? It doesn't seem as sweet as pure water.

Ye Yu explained: That's because the last step of purifying water adds some minerals and sugar.

We don't have that, so there's no way to maintain the most natural taste of purified water.

However, the water filtered by such a water filter device already meets the drinking water standard.

It's just that the taste is not as good as pure water.

Ye Linger nodded: Then why didn't Dad buy some candy just now?

This way we can get water that is as sweet as pure water.

Ye Yu was amused by this Tongyan Wuji: Although pure water is sweet, it is not equal to sugar water.

Moreover, the required minerals in the water are in very small amounts, which we cannot manually control.

It's like I asked you to add half a grain of white sugar, how do you add it?

You can squeeze dozens of them with your little hands. If you measure too much, the water quality is also undrinkable, otherwise it will be harmful to the human body.

This principle is like drinking cola and beverages. Drinking less will not harm the human body, and it is quite delicious.

But if you drink too much, it damages your body and you get sick.

So every mineral that enters our body is quantified.

This kind of tiny amount is not something that we can simply control artificially. It requires precise processing by machines to complete.

So, the purified water we make is not as sweet as the ones sold on the market.

Several babies understood in an instant, and praised Ye Yu one after another.

Dad, you are amazing, how do you know so much?

Does the teacher know so much?

Do other people's fathers know so much?

Ye Yu smiled. In fact, he didn't understand at first.

But ever since he acquired the god-level fresh water device skill, he has all kinds of knowledge in his mind.

Desalination of industrial wastewater and desalination of seawater is currently the most difficult project in the world.

The discharge of industrial nuclear wastewater will endanger future generations and hinder the development of today's society.

This is the most difficult project in our country at present, so countless people are racking their brains to figure out how to deal with industrial wastewater?

In addition, although seawater desalination has long been widely promoted.

However, since the most common method they use is the permeation method, the filter paper needs to be changed frequently.

In addition, the equipment required for water purification in the factory is quite expensive and wears a lot.

Therefore, everyone needs to save water resources, which is the greatest contribution to all mankind.

If a new type of filter paper can appear, it can be like quartz sand or granite.

Like activated carbon and other substances, it is only replaced once a year or two.

Then, the cost of producing pure water will be greatly reduced.

Nature can easily solve the water problem of all mankind.

Now in Ye Yu's mind, there is already a fairly simple way to fade it.

He has to make the related machines as soon as possible.

Go back and recommend it to the country, and let the country promote and use it, which will benefit mankind.