Chapter 580 A Fish that Grew up Eating Cadmium Water Entertains Its Benefactor
Chapter 580 A fish that grew up eating cadmium water entertains its benefactor~~~
The green tide surges and fills the valley.
The weeds are growing like crazy. Overflowing the road, covering houses, swallowing water. One moment it covers people's heads, the next moment the roots are climbing, and the next moment more plants sprout spontaneously.
In the blink of an eye, the appearance of the small village was not much different from the villages Gretel had seen in his previous life, where the villagers had moved away and only the houses were left.
In the distance, the villagers' exclamations and shouts were blown by the wind.
To Gretel's mind, this green storm seemed to have lasted for ten thousand years, but also seemed to only last for a moment. After a long while, he leaned back, spread out his limbs, and lay on the grass. The thin clothes were completely soaked with sweat.
He lay with his eyes closed for a long time, and finally gathered some strength to look at the gray clouds in the sky:
"Teacher, I can only go so far -"
Repairing soil pollution is an extremely difficult and lengthy process. As far as Grete knows, the methods used in previous lives, but without exception, are extremely costly and extremely slow to produce results...
And most of them he can't do. For example, soil removal/soil replacement method, leaching method, solidification and stabilization method, electric repair method, etc.——
If you change the soil method, there won’t be so much soil;
The leaching method only leaches heavy metals on the surface into the groundwater, which can also cause groundwater pollution;
Regarding the electric repair method, first of all, Grete could not prepare such a large amount of electrolyte. Secondly, he did not know how much voltage to pass, and he could not generate electricity with his bare hands like the teacher;
The solidification and stabilization method, forgive him, he only knows roughly adding chemicals to the soil, what should be added specifically, sorry, goodbye.
Only the phytoremediation method can barely be tried. After all, he is a natural spell caster, so he can still produce weeds.
He lay still, while Elder Erwin wandered through the grass, identifying each tree. Recognize one tree, go back and chat with Appa for a few words, recognize another tree, go back and chat with Appa for a few words...
Finally, with Appa's help, Elder Erwin pulled over a plant about a foot tall with small white flowers. Well, this thing consumes less magical power, and the effect of accumulating pollution is particularly good——
Mainly because Apa said "the taste is particularly strong". He brought it to Gretel and began to teach the students:
"Well, this round-leaf Arabidopsis magic consumes less energy and is particularly effective in accumulating pollution. And it can grow for many years. Once it grows, cut it off, and then grow another one... Remember it, Gretel, and we will repair the lead and zinc in the future. It is most convenient to use it to prevent mine pollution, and its brothers and sisters can also..."
Grete rolled half a circle on the ground with difficulty, looked up at the grass, and groaned in pain.
These things, they recognize me, but I don’t recognize them, what should I do?
But you still have to remember it. Phytoremediation does not work overnight. It does not mean that these plants can grow out and remove heavy metals from the soil.
It takes many springs and autumns for plants to grow over and over again, enrich heavy metals, and be recycled and processed before the heavy metals in the soil gradually disappear. Casting this spell can only reduce it a little bit.
"Gretel, what to do with this grass?"
Grete glanced at the long grass that had just grown all over the mountains and fields, and wanted to hold his head and groan. You don’t need to have studied soil remediation to know that these grasses cannot be allowed to wither and rot in place, otherwise the heavy metals coming from the soil will return to the soil.
But asking him to get rid of all this grass?
"Well, in theory, they should be recycled, carbonized, and then the metal extracted... It would be possible to use drying techniques, but..."
It's not that it can't be done, but just after they were spawned, they were killed with magic. Gretel felt a dull pain in his stomach just thinking about that scene.
And more difficulties are coming. In the distance, the shouts and cries of villagers and miners spread along the road:
"Pastors! Our fields, fields, are all overgrown with weeds..."
"Priests, the roads leading down from the mining area are overgrown with weeds, making it difficult to transport the ore..."
oh.
As long as it's full, it's full.
Anyway, the grains, vegetables, and all the products grown on this land are inedible, as eating them will continue to accumulate heavy metals. As for the roads in the mining area, the worst thing is mowing the grass...
Just cut the grass...
Gretel calmly took out a gold coin. After thinking for a while, he put it back and took out two silver coins:
"In this case, I will hire you to cut the grass. One load of grass in this valley costs two copper coins, and five loads costs one silver coin. After cutting them all, the money earned will be enough for you to buy food for a year. How about it? "
Two copper coins could buy a pound of flour, or a loaf of baked bread. If you use it to buy unground wheat, you can buy more. A strong laborer can cut several loads of grass a day with ease.
Grete crossed her hands happily.
Let others cut it, and I will only be responsible for carbonizing it - or you can seal it in the stove and burn it directly. Uh-huh, the gentleman is far away from the kitchen. As long as I didn't kill him, he didn't kill him...
With a wave of his hand, the mountains and fields were covered with weeds. Looking at this amount, it is not a problem at all to provide enough food for a year.
Elder Erwin added with a smile:
"I will pay you on the spot for the grass you cut today. In the next few days, I will ask a priest from the God of Nature to come over and count the haystacks and give you money. Is that okay?"
That’s great! The priests of the God of Nature have always had a good reputation among the poor. They are responsible for distributing money, and no one has to worry about embezzling money!
The villagers went back with great gratitude. Soon, there were cheers, and all the villagers who had time and could move around came out.
If you can’t mow the grass, you can still pull it!
Elder Erwin smiled and nodded to his disciple. Well done, you did a good thing by destroying their fields!
In order to give money, Grete stayed in the village for another night. Men, women, old and young all went into battle, and the miners also put down their work and worked hard.
By the time it got dark, the valley had been completely barren, and the threshing floor at the entrance of the village was so piled with weeds that it was almost impossible to stand. And Gretel gave out dozens of silver coins!
Got money!
I have money to buy food!
You won’t go hungry this winter or next spring!
If I work hard for a few more days and clean up the whole valley, I can save money to make some clothes, and maybe even repair the leaky roof!
Cheers came and went. Grete walked slowly on the threshing floor with a smile, throwing spells randomly:
Dehydration!
Dehydration!
Dehydration!
"By the way, do me a favor and sweep up all this carbon dust!"
The villagers rushed out. Elder Erwin’s attention:
"What do you want these for?"
"Take it back and refine it!" Gretel said confidently:
"Concerning the toxicity of cadmium to the human body, soil pollution, and treatment, I can use it for experiments so that I can publish articles! I spent so much money, I have to find a way to make some money back!"
However, for the villagers, they don't understand what it means to conduct experiments, publish articles, and ask for rewards from the Magic Council after publishing articles. All they saw was Gretel and his team working hard to treat everyone here one by one;
In order to restore the water and soil here, a large-scale magic spell was launched to spawn plants throughout the valley;
Worried that they would have no food to survive the winter, they used cutting grass as an excuse to hire and pay them...
What a good man!
The priests of the Deistic Church are all very good people!
Since they are good people helping them, the villagers will naturally do their best. It's rare that these pastors stayed overnight again, and brought out all the good things they had!
That night, under the dim oil lamp, Gretel saw wooden bowls, wooden plates, wooden basins, and seven or eight dishes piled up on the table. There are green wild vegetables, which look like they have just been blanched in water, without any oil or salt;
There is dried meat with an extremely suspicious color, which may be smoked, and the carcinogen content is estimated to be very scary;
There must be a fish that was just caught in the afternoon. Grete didn't even need to dissect it, but he saw that its spine was bent, its bones were incomplete, and it looked like "I have accumulated countless times of cadmium, and I am already terminally ill"...
Can these things be eaten?
Grete seems to remember that the amount of heavy metal pollution in animals seems to increase exponentially compared to that in plants... How many times is it? 10 to the third power, the fourth power, or the fifth power?
If you eat it yourself, you won’t be able to eat it; if you give it to the villagers, these things will accumulate a lot of toxins! I feel like no matter what I do, my conscience will hurt...
He glanced at Elder Erwin. Elder Erwin's face remained calm as he picked it up and ate it. Apparently he was used to accepting the villagers' thanks.
Looking at Cerila, Serila looked bored and walked directly out of the house. Although the villagers looked regretful, they were not surprised. Apparently they felt that "a young lady should be picky";
Looking at Apa again, Apa had already begun to eat grass. As he ate, the white light on his body shone softly. He was clearly throwing detoxification spells on himself.
You, you are cruel!
Okay, okay, cadmium accumulates mainly in the liver, kidneys and bones. If you eat fish, you don’t eat these three anyway. The accumulation of toxins in the muscles is still relatively small...
Besides, isn’t there a detoxification technique?
eat!
Grete forced herself to fill her stomach. By the next day, he began to thank himself for his choice:
The villagers' food was unpalatable, and the city lord's banquet was even more unpalatable!
"So this time it's completely cured, right? The strange disease won't happen again, right?"
City Lord Qiao An gave a speech of gratitude, raised his glass, and asked seriously. Gretel looked at the veal, foie gras, and fried cod in front of him, and he couldn't eat it for a moment.
"It will happen again. It will definitely happen again. Five years, ten years, fifteen years... Only the lead-zinc mine will remain open. As long as the workshop remains open, toxins will continue to accumulate in the soil and water sources. Strange Sickness or something will definitely happen again."
He looked at the city lord earnestly:
"Can we strengthen the protection of that workshop so that the wastewater is not discharged directly into the soil?"
"How can it be!"
****
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