Xianyu River, a rather poetic name, is a tributary of the Mother River of China, legend has it that there are immortals who love the beauty of this river and linger here, so mortals can often hear the whispers of immortals here.

But this is a legend a long time ago, if anyone says that the Xianyu River can attract immortals, it is estimated that the aborigines on both sides of the river can go up and slap him twice - your black and smelly river can attract immortals?

Thirty years ago, the local government attracted investment and built a large number of factories on both sides of the river, which injected economic vitality into the originally poor Xianyu River area, but at the same time, a large amount of wastewater discharge also destroyed the natural environment of Xianyu River, turning the original idyllic Xianyu River into a sewage river that everyone avoided with their noses covered.

If it's just a desire to vomit and smell it, it's just for the sake of money, but the frequent diseases of the aborigines who originally used the Xianyu River as drinking water are not a problem that money can solve. There used to be a village called Cancer Village, and more than 80 of the more than 5,000 people in the village died of cancer, and I don't know how many of the remaining people were also entangled in the disease.

Residents have complained to the government, but each time the EPA has been late, and although the factory will be closed, when the EPA is gone, the factory will be reopened.

Residents on both sides of the strait are unbearable, and many of them have chosen to leave their hometowns and go out to earn a living, but there are always those who are unable to break through or whose homeland is difficult to leave, so they can only continue to stay here.

He Wenqing is one of the trapped defenders, he has contracted a barren mountain here, planted a large number of fruit trees, and earns a lot of money every year, which is why he is reluctant to leave.

When he got up in the morning, He Wenqing started his small truck and prepared to go to the town fifty miles away to buy purified water, which he had to do once a week. Although the village is connected to tap water, as long as there is some ability, it will not drink it directly, because everyone knows that tap water also comes from the Xianyu River, although it has been treated, it is far from meeting the standard of drinking water.

Along the road by the river, He Wenqing drove while humming a little tune, I don't know why, he always felt that something was wrong. He pondered for a while, and suddenly realized that he didn't smell the foul smell of the Xianyu River today—as a native of the Xianyu River, he was used to that smell.

He Wenqing looked out of the car, and the Xianyu River reflected the sun, shining brightly, which made him stunned.

Crunch――

He Wenqing stepped on the brakes hard, jumped out of the car, and staggered to the river, and after a close look, he was finally convinced that the water of the Xianyu River had become clear. Although the silt on the bottom and banks of the river is still morbidly oily, it is an indisputable fact that the river has become clear.

"The Environmental Protection Bureau took the initiative to come down and inspect?" He Wenqing was a little puzzled. The EPA's inspections have always been carried out on the basis of complaints from villagers' committees, and He Wenqing, a member of the villagers' committees himself, can be sure that there have been no recent complaints.

Everyone knows that it is useless to complain, and the Environmental Protection Bureau will come, but after dealing with it painlessly, everything is still the same, and the reason why we have to complain is to fight for some preferential policies for the village, such as the reduction of mountain and forest contracting fees, and the transportation subsidy for children to go to school in the town.

Even if the Environmental Protection Bureau came to inspect and the factory was closed, Xianyuhe would not have changed so quickly, right? With the pollution level of the Xianyu River, it will take at least a year to stop the sewage discharge to reach the current situation, and yesterday the Xianyu River was still stinking.

He Wenqing stood by the river, his expression constantly changing. On the one hand, he told himself not to expect Xianyuhe to change back to what he was when he was a teenager, because that was unrealistic, and the final harvest could only be disappointment. On the other hand, he desperately hopes that his hopes will come true, and if everything can be restored to the way it was, he is willing to exchange all his wealth for it.

There are not a few people who stand by the river like He Wenqing and have conflicting feelings, there are children who have grown up smelling the stench, there are also old people who have watched heaven turn into hell, and more middle-aged people who only have vague memories of the green mountains and green waters.

Factories on both sides of the Xianyu River had received notices from the government the day before that someone was going to renovate their wastewater pipes, a process that would not require them to pay a penny, and that they could discharge the sewage at will in the future, and the only thing they had to do was to authorize and cooperate. The factory owners happily signed the agreement, and by the time they were pondering when the renovation would begin, the water purification plant had been built overnight.

This morning, there was a strange building at the outfall of the fortified factory, which looked like an irregular drawer with a strong modern architectural style, and the early workers were all pointing around before it was time to go to work.

"What is this?"

"Do you have long eyes that you step on as bubbles? Isn't it spray-sprayed? Pioneer Water Purification Workshop! ”

"Nonsense! Who can't see those words? I asked what the water purification workshop was for. ”

"I guess it's treating wastewater, right? You also know that the wastewater from our chemical plant is toxic, and the residents around here are getting sick, and the boss is making black money. ”

"Are you saying that the boss has a conscience and spends money on sewage treatment?"

"Obviously not! If the boss spends money to get it, it must be written 'Fuqiang Water Purification Workshop', and you must publicize your sense of social responsibility with great fanfare, and then apply for the top ten conscientious entrepreneurs in the country or something. ”

"That's right. But is this little thing enough to handle our wastewater discharge? It's not going to be a show, is it? ”

"It's not for show, it's really useful, the water that has been treated in this workshop is clear. There is a young man in the quality inspection department who has already taken some to take for testing, and it is estimated that the results will be available soon. ”

While the two were discussing, there was a stir on the other side of the crowd.

"What do you say? Is the treated water drinkable? Are you kidding? We know what is in the water discharged from our factory, and even if it is treated, it can't meet the drinking water standard, right? ”

"That's right! I used my professionalism and the boss's secretary's ass to ensure that the treated water was absolutely up to drinking water standards, but the beneficial mineral content was lower than that of natural pure water, which was not ...... It's kind of like purified water. ”

"The boss's secretary is not worth anything, as for your professionalism...... Hehe, it's not as good as the boss's secretary's ass. If you want to say that it meets the drinking water standard, you take a sip and try it! ”

"Are you sick? I pee and pee, and after distillation, I give you a drink, do you drink it? ”

"Don't drink! Disgusting! ”

"As far as you know it's disgusting?"

“……”

The workers made a fuss for a long time, and finally determined that this water purification workshop could indeed clean the sewage treatment of the factory, and everyone would no longer have to bear the condemnation of conscience in the future.

When the time came, they all went back to work, leaving only the water purification workshop working silently.

In the water purification workshop, there are two filtration pipes side by side, and there is a bifurcation at the entrance of the pipe, and when the filtration device is replaced in one pipe, the bifurcator will direct the sewage into the other pipe, which is constantly rotating.

There are nearly 100 layers of filter screen in each pipe, the filter screen is about 10 cm thick, looks like a brick, has good water permeability, strong adsorption, and the effect is similar to activated carbon, and ensures thorough purification after multi-layer filtration.

After working for a period of time, the water permeability and adsorption of the filter at the front end will decrease, so it should be replaced every few minutes, and the front filter will be removed, and a clean filter will be installed at the end of the filter to take a step up like a magazine.

The removed filter screen is sent to the small material workshop in the water purification workshop, and the material workshop analyzes the composition, dissociation, proportioning, and recombination of the material to re-furnace the new filter screen, and the substances adsorbed by the filter screen are dissociated into various materials and enter the warehouse, and will be transported away after accumulating to a certain extent.

These materials are polluted when they enter the river, but will become treasures when they reach the Pioneer base. With yellow sand as the raw material, the material factory can obtain a large amount of siliceous materials and a small amount of metal, which generally meets the needs of labor.

But there are some things that can't be made from these hard minerals, such as the new energy vehicles made by the pioneers. Inorganic materials can make the entire frame of the car, so that the car can be on the road, but as a daily necessities, a comfort issue must also be considered, such as seats, steering wheels, seat belts, etc., all need some polymer materials to make.

It is true that pioneers can extract and synthesize materials by purchasing rubber, oil and other materials, but this is not in line with the pioneers' environmental protection concept, and recycling materials through various pollution control is enough for pioneers to use.

While blocking the source of pollution in the Xianyu River, the pioneers' sewage cleaning boats are already working. The sewage cleaning ship is a water material factory, the engineering robot excavates the polluted river bottom and the silt on both banks, sends it to the sewage cleaning ship through the pipeline, extracts various pollutants, metals, organic fertilizers, and then filters the water, and mixes sand and gravel with a small amount of metal to make building alloys to strengthen the river.

The sludge clean-up in the Xianyu River basin will be completed within a week, and this is just a microcosm of China's environmental governance, every sewage factory, every urban sewage pipe has a corresponding water purification workshop, and every river and lake is filled with pioneer sewage cleaning boats.

The water pollution control in the whole of China, while removing pollutants, can also clean up the sediment of the river, deepen the river, strengthen the embankment, and at the same time allow the pioneers to harvest a small amount of raw materials and a large amount of organic fertilizer, which far exceeds the needs of the soil transformation of the Sea of Death, but who can say that the goal of the pioneers is only limited to a sea of death?