After three days, when Lin Han came to Tianhu Village again, Song Shuqing greeted him eagerly, and said excitedly: "The river has become clean, you are really a god!"

"Well, I didn't lie to you. Lin Han closed the car door casually and said with a smile.

Song Shuqing gave a thumbs up: "Amazing, Vientiane's technology really lives up to its reputation...... By the way, where did you get this technology, can you tell me about it?"

Lin Han smiled and said nothing.

"Tell me about it, I'm going to keep my mouth shut. I'm just curious, where did you get such a powerful processing technology?"

Lin Han groaned slightly: "You may not believe it when you say it, I can manipulate microorganisms, and I am still the kind that makes my fingers." ”

"No kidding, seriously. ”

"Look, I'll just say you don't believe it. ”

"Forget it, if you don't say it, don't say it......" Song Shuqing shook his head, and then remembered, "By the way, you told me last time that you can solve the problem of soil pollution in the village?"

"Not only the soil, but in the next three months, I plan to help you deal with all the environmental sanitation problems in Tianhu Village and create a model of a new socialist countryside. Lin Han said half-jokingly.

"So powerful?" Song Shuqing was a little skeptical, "The environmental problems in the countryside are not trivial matters now, and if you want to comprehensively manage a village, you have to invest a lot of manpower and material resources." ”

Lin Han said slowly: "Take Tianhu Village as an example, there are mainly four problems, among which water pollution has been basically solved for you. ”

"In addition to water pollution, there is also soil pollution, garbage and aqua toilets. Among these three problems, the simplest is soil pollution, followed by aqua toilets and garbage. ”

For Lin Han, purifying the soil is not much more troublesome than purifying the water body, although it is unlikely that the soil will be "healed" for a while, but at least the microorganisms can be used to remove most of the pollutants in the soil, which can already greatly improve the soil.

Song Shuqing was stunned when he heard this: "Soil pollution is a problem in the world, how can it become the easiest for you?"

Lin Han smiled: "After a week, you can go and test the soil pollution in Tianhu Village yourself, and it will definitely make a big difference." ”

From the time he first arrived in Tianhu Village, he had already mobilized a large number of microorganisms to deal with some of the pollutants in the soil.

Soil pollutants come mainly from the overuse of chemical fertilizers, pesticides, and sewage from the fields. Most of these things are organic and can be quickly broken down by microorganisms.

The only soil contaminant that cannot be effectively treated, that is, heavy metal pollution, because the soil is a solid environment, it is difficult for microorganisms to precipitate and collect heavy metals efficiently.

However, after all, it is a rural soil, and heavy metal pollution is relatively not prominent, as long as all other pollutants are decomposed, even if the soil purification is basically completed.

Looking at Lin Han's sworn expression, Song Shuqing was a little skeptical.

He thought for a moment and asked, "What about the aqua toilet and garbage, what should you do with these two problems?"

Lin Han didn't answer, but thought about it and said, "Is there a harmless toilet in Tianhu Village?"

"There is one. ”

"Where's one?"

"Lao Wang's family has one, right next to the village committee. ”

......

The old Wang in Song Shuqing's mouth, called Wang Busheng, is the village director of Tianhu Village, which is commonly known as the village head, and is the second-in-command in the village.

The village secretary is the highest cadre in the village and can be directly appointed by the superiors. The village chief, on the other hand, is elected by the local villagers, and there is no direct supervisor.

Of course, how this election was elected, others do not know, but one thing can be confirmed, that is, Wang Busheng's family background is quite good.

The two came to the side of the village committee, and Song Shuqing pointed: "This is Lao Wang's house." ”

Looking at the supermarket in front of him, Lin Han felt a little surprised, wasn't this the supermarket where he bought fishing gear? At that time, he felt strange, a small village, where could such a magnificent supermarket come from.

"This supermarket is owned by his family?"

"That's right, this is Lao Wang's supermarket, and behind it is his house. Song Shuqing nodded, and then said a little cryptically, "Countryside...... There are some things I won't say much about. ”

There have always been big problems in supervision and management at the grassroots level. Especially as more and more people pour into the cities, the rural areas will inevitably become weaker.

Lin Han didn't say much, and the two immediately came to the courtyard behind the supermarket, and soon saw a hut next to the courtyard wall.

"That's it, only this one toilet in the whole village is more advanced and can be called harmless. ”

This cottage, from the outside, looks like a decent one, much cleaner than the average farmhouse toilet.

Lin Han pushed the door open, and what came into his eyes was the layout of an ordinary toilet, but it was obviously much cleaner, the smell was very light, there were basically no mosquitoes and flies, and there was not a single maggot crawling around.

It's like a toilet.

At this moment, a middle-aged man came out of the courtyard, dressed casually, as if he was about to go to the toilet.

When he saw Lin Han and the two, he was stunned at first, and then said with a smile: "Yo, it's Xiao Song." Come to the bathroom?"

Song Shuqing was a little embarrassed: "No, let me introduce to you, this is my friend, Lin Han." ”

"Lin Han, this is Wang Busheng, the village director. ”

After a few polite words, Lin Han asked, "I want to ask, how much did it cost to renovate this harmless toilet?"

When Wang Busheng heard this, he inexplicably showed a somewhat vigilant look, and looked at Lin Han a few times: "Why are you asking this?"

Lin Han smiled: "I want to make some investment in Tianhu Village, and I feel that the problem of the dry toilet is worse, so I will ask casually." ”

"Investment?" Wang Busheng's eyes lit up, and he began to say with a grin, "This toilet is specially rebuilt by someone I specially found." Not to mention that it is cleaner than before, the septic tank can basically be treated harmlessly. The treated manure can be fertilized and the quality is much better than before. ”

"Well, it's not cheap. Speaking of this, he paused, "My toilet probably cost thousands of dollars before and after." ”

"A few thousand, is it three thousand or nine thousand?" Lin Han was a little speechless.

"It's been a long time, I don't remember exactly, anyway...... That's a few thousand dollars. ”