The Black Technology Era of Xueba

"It's over, it will take a while."

Xiao Ming asked the workers to build a sewage treatment tank here to save costs to the greatest extent and make use of the existing local resources.

For example, the sinking basin is not made of concrete, but in the form of deep excavation. For example, the heating problem of the first biological sewage treatment tank used solar heating panels, which can be used to make a microbial accumulation pit below in the future, and use the fermentation of waste organisms to heat up.

The local farmers are still relatively friendly, and they did not stop the road and demand compensation because of Xiao Ming's workers digging holes at the side of the ditch. When everyone was working, they spontaneously brought tea and fruit to Xiao Ming and others.

In fact, most of the people in Xia are kind and simple, knowing that your actions are for their own good, they will not embarrass you.

The next step is to wait quietly.

After three o'clock in the afternoon, the early summer sun was quite warm.

The girls who study biology are more able to endure hardships. Wen Xueqing's face is covered in sweat and mud, and she doesn't have the delicacy of a city girl at all.

Wen Xueqing wiped the sweat on her forehead with her sleeve and said, "It's almost time!"

The workers opened the valve in the upper part of the second biological treatment tank, and cool water flowed out from the upper part and into the third plastic tank.

Through technical adjustment, the water of the second biological treatment tank will automatically overflow from the upper part after being cleaned, and ensure that the overflowing water must meet the standard of Class I water.

Wen Xueqing said: "Test the water quality and pay attention to check the bacterial content."

Xiao Ming recorded every detail of the experiment with his mobile phone camera, while Wen Xueqing opened his laptop to record the detailed experimental data.

After half an hour, the test results came out.

The experimental assistant said: "Perfect!"

Wen Xueqing said, "Give me the data."

Because it is a field experiment, the sealing is not strong, and the deposition time is short, so the treated water index is a little worse than that of the laboratory, but it still reaches the Class I water standard and can be drunk.

Then hand over the data to Xiaochu, and let Xiaochu enter it into the experimental software form.

As a result, the sewage treatment experiments that lasted for eight months have been completed, and the paper can be officially published after the field test data is handed over to Gao Siqi.

The farmers gathered around, looked at the cool water in the plastic bucket and asked, "My God! How come the black water has become so cool!"

"Are there any chemicals in this bucket?"

"It's amazing! The sewage treatment plant won't treat it so cleanly."

Xiao Ming did not intend to remove the experimental equipment. This small sewage treatment tank can benefit local farmers.

Xiao Ming introduced: "We are students of Jiangcheng University. I am disturbing everyone here today to do a sewage treatment experiment. Now the experiment is successful."

Xiao Ming pointed to the sewage treatment equipment and said: "The sewage treatment equipment has been installed, and the microbial treatment method we used has turned the sewage into drinking water after two treatment tanks. You can use the water here to water vegetables and feed. Livestock, of course, can also drink by themselves.”

Someone couldn't bear it anymore, put a plastic bottle into a bottle, took a sip and said, "Not bad! It tastes better than groundwater! Groundwater always has a metallic taste."

"I will try it too!" More people squeezed to the front.

"It tastes really good! I'll pick up water and drink it here in the future, and I don't have to waste electricity pumping water!"

"It really is!"

Wen Xueqing, who was very responsible, heard the villagers say that the groundwater she had pumped had a metallic taste.

During the sewage treatment experiment, Wen Xueqing was very sensitive to water quality and had a bad premonition.

Wen Xueqing looked at Xiao Ming, Xiao Ming nodded.

Wen Xueqing immediately said, "Who of you will help me pick up some of the groundwater you pumped out, and I'll test the water quality for you."

An elderly man with protruding eyes and a yellow complexion said, "I'll go."

A few minutes later, the old man came out with a mineral water bottle and said, "This is the water I just received.

"

The groundwater is not as cool as I imagined, and it is a little turbid and a little yellow.

The villagers are actually drinking such water?

The old man also sighed and said, "A few years ago, our well was seven meters deep to get water, but now we have to drill seventeen or eight meters deep to get water. This groundwater is of this color, and we have to settle it before drinking it."

In fact, Xiao Ming doesn't need to tell the old man to know that the surrounding area is full of factories and enterprises. The office buildings of the enterprises are at least five or six meters high, and as many as ten meters high.

The first priority for everyone in the construction of high-rise buildings is to dig deep foundation pits for drainage, and it is good to have water wells up to 17 or 8 meters deep.

Wen Xueqing was busy testing the water quality. Twenty minutes passed, but she didn't expect it.

Handing the test results to Xiao Ming, Wen Xueqing said: "The iron and manganese content is seriously exceeding the standard, which is thousands of times the drinking water standard. This water cannot be drunk!"

The groundwater is seriously polluted, and the cause of such serious pollution is inseparable from the pollution of the surrounding enterprises, especially the deep processing enterprises of iron ore and manganese steel. Xiao Ming even seriously suspected that these enterprises did not follow the sewage treatment procedure at all, and directly discharged the sewage into the river ditches or directly underground.

Wen Xueqing trembled with unspeakable anger, she said, "Drinking this kind of water will kill people!"

Later, Wen Xueqing asked, "Has anyone in this village died of illness in the past few years?"

Wen Xueqing opened the conversation of the villagers.

"Why not, people die every year."

"Liu Sanye just left last month, and Aunt Li also left two months ago."

"What disease? Liver cancer?" Wen Xueqing asked.

This surprised the villagers.

"how do you know!?"

"In the past few years, several people in the village died of liver cancer."

"And two cirrhosis."

"Don't drink this water." Xiao Ming said, "The groundwater can't be drunk anymore, it's already polluted."

The villagers said: "It's so serious, we boil it and drink it, it should be fine."

"Why don't you drink groundwater?"

Xiao Ming handed a box of culturing agents to the villagers and said, "Drink the treated water here first. This is culturing agent. Add one packet to each of the two treatment places every month. In addition, you have to continue to think of ways. It's best to apply for tap water from above."

"Sister, let's go." Xiao Ming said, "Leave the equipment here, and pack the equipment."

"But! But!" Wen Xueqing said: "Their groundwater can't be drunk, shouldn't we help them?"

"I know." Xiao Ming's expression was serious, "I can build a large-scale sewage treatment plant here, but there are many villages like this in Xia, and the water pollution is only a small point. What about food? What about air? Just rely on We cannot change the status quo, and all we can do is speed up the promotion of sewage treatment technology."

Wen Xueqing sighed and said, "I only helped them to publicize them in the media, and I made an appeal."

When leaving, Wen Xueqing looked at the local indifferent villagers with sour noses and the ignorant fearless. What have we lost while the economy is developing?

Xiao Ming's motorcade left the village, and he felt some responsibility.