As the text annotations slowly faded away, new changes took place on the light screen of the map.

The angle of view leaves the central sewage treatment station and comes to the sky above Boulder City, presenting a plane bird's-eye view. The size of the light curtain is enlarged to clearly present the roofs, streets and other buildings on the ground.

"Um..."

In Odin’s doubts, the buildings in the picture suddenly disappeared, the whole city turned into a brick gray floor, and the public toilets and water fetching houses were instead Highlight it.

[The perspective of shallow analysis of the surface has been opened]

[First Layer: Urban clean water pipe network, 1 to 3 meters deep underground, displayed by water blue, status: high load, click View details]

[Second Layer: Urban pollution water pipe network, 3~5 meters deep underground, displayed by gray black, status: unobstructed, click to view details]

Huge map light On the curtain

A thick blue line of water starts from a water tower five kilometers away from the city. It is divided into three, three and nine. The line goes from thick to thin until it connects to each of the water towers in Boulder City. Up to the room.

Obviously, this is the water pipe extending from the water tower.

The map change is not over

At the location of the sewage treatment station in the lower reaches of the Heitie River, the same gray black line also begins to extend until it connects to each public toilet.

Odin nodded, I know this is a sewage pipe.

"Being able to accurately display water pipes directly underground through obstructions, it seems that the viewing angle function of the Heart of Faith has become stronger.

I don’t know if I can see through the veins, Detect the iron ore reserves, if you can..."

Before he could finish speaking, the entire blue pipeline suddenly added a red border, and the light and dark flickered, which seemed to be problematic.

Master Odin, who was attracted by the image, only noticed the text annotation displayed next to him.

Status: High load!

Odin feels a little bit in his heart

"It's broken...Let's see what's going on..."

The thought touches the light curtain, click in to see the details.

【Municipal water tower and water pipe network, completed and put into use in 1840 (third year), the construction of Chief-In-Charge: Ren, Meira.

The water tower is 15 meters high, with a maximum instantaneous water storage capacity of 100 tons, and a continuous water supply capacity of 4,800 tons at 24 o'clock.

When the flushing toilet was fully popularized in Boulder City, the water consumption of residents increased greatly, reaching 150kg per capita per day, which has exceeded the maximum water supply capacity of the water tower.

Please improve the municipal water supply capacity in time. 】

The comment is very clear, that is, the water supply capacity cannot keep up with the water consumption.

At the beginning, when designing the water tower, it was built as large as possible. It was only a few years before the water supply limit was reached.

It is indeed a bit unexpected by Odin, but it is reasonable, because no city has such a high per capita water consumption.

Everyone uses two large buckets of water every day, which is far beyond the standard of one bucket of water for a civilian family in other cities.

Why there is such a big difference, Odin will understand after a little thought.

There are two key factors.

The efficiency of water withdrawal and the level of resident wealth.

To sum it up, it is just one sentence, Boulder City residents have enough money to fetch water and water anytime and anywhere.

In addition to the population growth in recent years, the water consumption has been rising!

It is not difficult to solve it. Next to the original water tower location, a larger water tower is being built to connect to the water network.

Small water towers can be used for backup and can be operated alternately. After all, water towers occasionally need to be cleaned of the scale deposited throughout the year.

shua~ shua~ shua~!

Odin picked up a pen and paper and quickly wrote a decree.

"Nightingale!"

"Master who is here, please order~"

The personal maid is on standby at any time.

"Send the documents to the city hall and hand them to the Archon Ruvid."

"Yes~"

Looking at the leaving little maid, Odin slightly smiled, get it done!

Up to two months, an extra icon will appear on the light curtain map.

His attention returned to the light curtain. The reminder function of the heart of faith was still very useful. He decided to take a closer look at whether there were any omissions.

Sure enough

Under closer inspection, several red dotted areas appeared on the map that has returned to normal viewing angle, like irregular tulle.

The distribution is disturbed, this piece of piece, but also regular, basically distributed at the junction of the city periphery and the woodland.

There is also Black Stone Town, but it is much less.

The strange phenomenon attracted the attention of Master Odin. In order to figure out what it was, he pointed to the area with the largest red dot.

"Magnify the angle of view to see clearly what it is."

Om...

After several consecutive zooms, the image clearly appears in front of Odin's eyes.

"This is...garbage?"

After adjusting the angle of view many times, it is determined that it is garbage.

In dealing with rubbish, Odin made a common sense mistake as a modern person who passed through.

He always thought that Ella Continent does not have a large number of plastic products, and there is no excessive packaging. People cherish food, and the food is all natural and there will be no garbage.

Even if there is, it is very rare and harmless.

But the picture presented on the light curtain is real, and this large pile of red dotted areas is indeed rubbish.

Rotten vegetable leaves, bones that cannot be eaten, food that cannot be eaten, leftovers from construction, fallen leaves cleaned up...

Not only that, but there are also many unrecognizable garbage.

Mosquitoes and flies are flying all over the sky, insects and mice are moving back and forth, and the closeness brought by the huge light curtain makes him think that he is in the garbage dump.

Forcibly resisting the discomfort, continue to check the next red area, and I watched several consecutively, the garbage dump, or the garbage dump!

Master Odin waved off the light curtain, leaning on the sofa and let out a long sigh.

“It turns out that cities can generate so much garbage, and some have been around for a long time. If left alone, it will get worse and worse.

Why didn’t Ruvid deal with such a conspicuous problem? Now, call him over and ask."

"Nightingale!"

"Master who is here..."

Nightingale just transferred the decree to the castle for cross-legged When the soldiers came back, they heard the call of the master again.

"Let the archon come to the castle."

"Yes..."

Summoning is relatively simple, just use gu gu bird, wait a moment Zhong, Ruvid came to the study.

Odin straight to the point, asking about garbage.

"Reporting back to your lord, the garbage generated by the residents is always thrown directly into the wild. Is there any problem?"

"Is there no other way to deal with it?"

"Um... as far as his subordinates know, some big cities will dig pits for burying or burn, but the burning is very rare."

Looking at the calm lord, Ruvid has some Uneasy kicking.

"Bury...Burn..."

Odin frowned and thought.

A large amount of garbage will be buried underground without treatment, which will pollute the surrounding soil, and may even pollute the groundwater seriously, affecting a large area of ​​water circulation.

Incineration seems feasible, but there is also air pollution.

The burning black smoke will be diluted and purified by the superior natural environment of Ella continent, but this cures the symptoms, not the root cause, nor is it a long-term solution.

At present, the population of only 30,000 or 40,000 is still like this. If the population is large, wouldn’t it be necessary to burn garbage every day, can the natural environment be purified?

……

In a short while

Odin came to the outskirts, and what he saw in front of him was the largest pile of garbage on the map.

A stinky odor hits far away, and the grass around the garbage dump is no longer growing. It is bare, which shows how much impact it has on the environment.

"Fire it."

Odin raised his hand and ordered.

Behind him, the fire mage thought about incanantation, playing a series of Fireballs and falling into the garbage dump, taking care of every direction.

Under the high temperature brought by spell, all the garbage dumps are ignited, and the raging flames are also very conspicuous in the sun.

Those snakes, insects, mouse and ants who were too late to leave screamed zhi zhi, and they all turned into coke in the flames of Heavenly Fire.

Under incineration, the height of the garbage dump shrinks at a speed visible to naked eye. Although the sky is full of black smoke, it does not seem to be unacceptable.

"When the garbage pile is burned, there will be no black smoke."

Just as he was about to tell Ruvid, the light curtain automatically popped up in front of him, and the high frequency flashed red light.

【Please note! The concentration of elements in the woodland on the side of the Western District of Boulder fluctuates widely. It is confirmed that it is an abnormal decline. Please repair it in time! ]

[The element concentration of the white birch cultivated forest has dropped by 0.5, continuing...]

[The element concentration of the rain flower growing area has dropped by 0.4, continuing...]

[The overall concentration of elements in residential areas decreased by 0.2, continuing...]

[The forest on the south side of the hill...]

A paragraph of text one after another appears on the light curtain, letting People are dizzying.

"What's going on! Not just now!"

At this time, contour lines and color difference are used on the light screen map to show the precise drop range of element concentration, and the concentration value is constantly beating. In, Odin found the darkest center point.

It turned out to be the garbage dump not far in front of you.

Odin's face instantly became gloomy, and he extended the hand arm in the puzzled eyes of many subordinates.

"Breeze...south-south-southeast...smoke column tilt angle 15°..."

The wind direction felt by the arm is exactly the same as the contour diagram of the element concentration drop. The smoke column tilts in the Northwest direction Regardless of the range and amplitude of the decline, it is significantly more than the other three directions.

This undoubtedly proves a fact.

The main culprit for the drop in element concentration is the black smoke from the incineration of garbage dumps.

It was too late to ask why, Master Odin called an emergency stop.

As everyone followed, the flames gradually ceased, and the black smoke that erupted no longer existed.

The red light is no longer flickering, but the contour line still exists.

The deep red area in the center is marked with a very conspicuous number.

-0.8

The contour lines at the back gradually decrease by 0.1 units, and the entire concentration drop range covers more than ten kilometers in a radius, which is really unimaginable.

Anyway, these garbage can't be incinerated, and the harm caused by the drop in element concentration is not so simple.

Odin returned to the castle, he has maintained the light curtain, wanting to see the next change in element concentration.

Ten minutes after the black smoke stopped

The outermost circle -0.1 contour area disappeared, and the inner area slowly recovered 0.1 concentration.

But it is very slow.

First, the area of ​​-0.2 is restored to -0.1

Then the area of ​​-0.3 is restored to -0.2

and so on, the restoration of each area must be separated by ten minutes After the whole recovery, it took more than an hour.

More than that, Odin also found that the longer the recovery time, the longer the recovery time. When it was the center point, it took fifteen minutes to recover 0.1.

In the next few days, he opened it from time to time.

It was not until the fifth day that the concentration drop caused by burning black smoke completely returned to normal levels.

It can be said that waste incineration is a momentary benefit, and all the elemental energy is gone.

If this pile was completely burned out at that time, I'm afraid I still don't know how much it will drop.

"The black smoke of garbage will cause the concentration of elements to decrease. Maybe this is the reason why there are very few urban garbage incinerations. Isn't it really the case? Or just set aside a place to pile up the garbage mountain?"

Obviously this is unreasonable, at least he himself cannot accept such a scene of the boulder collar.

"My lord, or let the river wash away, the fishes living in the water can eat everything, we just need to avoid letting the construction waste into the river."

Ruvid had an idea.

"A small amount of cold leftovers is indeed okay, but have you ever thought about how many people in Boulder City and Black Stone Town and how much domestic waste is produced every day? Are you sure about the fish in the Black Iron River? Will not be crushed to death?"

"Uh..."

Ruvid wiped his sweat, speechless.

"Pigs..."

"Pigs?"

"Yes! It's pigs!"

"Pigs...Pigs" There is no beast, my lord, what do you mean..."

Sir Lord suddenly said a wild beast term, which made Ruvid a little confused.

"Cough~What the hell is a pig beast? Explain."

Here, the three words pig beast are used to describe people who are stupid. Odin occasionally speaks from Ruvid's mouth. Hear a sentence or two to teach the person under his hand.

But he has never seen this thing himself, and he doesn't even know whether this pig beast is real or something people have imagined.

That’s why I asked.

"Master, you don’t know that the pig beast is not a product of our Human Race. It was originally the ancestorized beast of the Barbarian Race pig tribe.

Because Without wisdom, it can be said to be stupid, and even the tasks of cell mounts can not be undertaken, so it is called pig beast by other tribes of Barbarian Race.

With the later development, this only exists in low-level wild beasts. The instinctive pig beast gradually separated from the Pig tribe and became a food source for other carnivorous tribes of the Barbarian Race.

In other words, the current pig beast has nothing to do with the Pig tribe. "

"Oh~this way, since he is no different from cattle and sheep, why have I never seen anyone raise it? It stands to reason that the Barbarian Race tribe can raise it, and Human Race should be able to raise it."

"My lord doesn't know something."

Ruvid said with a look of hatred, shaking his head.

"Pigs and beasts are not only stupid, but also very lazy. They lie on the ground and sleep all day long.

If you want me to say laziness, that’s all, I don’t expect it to be so stupid. What can it do, but it is also particularly edible.

You said how to raise it, the food is not enough for its body to pay back."

"Then what if I If you guessed it correctly, the pig beast should eat everything except the grass that grows on the ground."

"My lord is amazing, it is true, so now, except for the Barbarian Race, some big tribes still maintain Except for the tradition of raising pigs and beasts, there is no room for this thing in other places."

"That's it!"

Odin gave a big hand and left the hall with a flying look. The Ruvid Archon who was left was confused.

"What...what...is it done? Wait for me, my lord!"

The trot chased him up.

……

Maid Xiaosai: "Whose clothes do you want to take off?"

Maid Nightingale: "How do I know, but it shouldn't be ours , It's a pity~"

Xiaosai: "..."

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