Suffering is like a dark cloud, but when you look at it from afar, you see it black, but when you are under it, it is only gray. - Richter

The biggest food problem that plagued Li Baoqiang was finally solved, and the gloom was swept away, and Li Baoqiang's brows were relaxed.

Li Baoqiang returned to Hope Village, more than ten days have passed, Hope Village is very lively, after all, more than 600 people have increased, the population has exceeded 1,000, reaching more than 1,500 people, although nearly half of them are old, weak, sick and disabled, women and children, but Li Baoqiang is still very satisfied with the current situation, saving people's lives is better than building a seven-level floating slaughter, and he can be regarded as doing a great good thing.

However, Li Baoqiang always faintly felt that there was still something to do in his heart, and he couldn't think of it for a while, so Li Baoqiang didn't waste his brain cells anymore, and looked at the happy and busy people in the village blankly, enjoying the rare leisure. Candy the wolf dog obediently lay beside Li Baoqiang, and Candy had grown into a giant wolf dog nearly one and a half meters in size at this time.

Candy stretched her waist and stared at the crowd with her red tongue sticking out of her mouth. The villagers of Hope Village are no longer afraid of this vicious-looking wolfdog, and in their eyes this white wolfdog is just a large pet. Candy has no other dog problems, does not bully, in its eyes, only the wild dogs, wild cats, those animals are its opponents.

At this time, an unfamiliar face approached Li Baoqiang, who was basking in the sun, and Li Baoqiang stared at this person.

"Hello village chief, I am a refugee from Guangyuan who was returned by you, my name is Chen Guangliang." The man in his fifties respectfully introduced himself.

"Oh, is there anything wrong with you?" Li Baoqiang looked at the man.

"Now that there are so many people in the village, and there is a lot of feces produced every day, I have an idea." Chen Guangliang said to Li Baoqiang.

"Oh, please, Lao Chen, don't be so polite." Li Baoqiang encouraged Chen Guangliang.

"I used to help others build biogas digesters, but now so many people have produced so much garbage from eating, drinking, and lasa, and the biogas digester can help eliminate the garbage." Chen Guangliang suggested.

Li Baoqiang patted his head, and then remembered the thing he had never remembered, that is, power generation, and the days without electricity were really difficult. However, power generation will have to wait a little longer, and this biogas digester can be built first.

"Which one did you build? Is it the kind of one by one? Li Baoqiang asked.

"yes, it's a small one." Chen Guangliang asked, does Li Baoqiang want to build a university?

"If you want to build, build a big one!" Li Baoqiang said domineeringly.

"Okay, the principle is the same, give me two days to plan it." Chen Guangliang saw Li Baoqiang's support for his idea and became excited.

Li Baoqiang is also excited, it seems that he is still continuing to touch the situation of the villagers, there is a hidden dragon and a crouching tiger here, don't bury the talents.

Chen Guangliang is indeed a talent, and after two days, he came up with a more detailed design plan.

Li Baoqiang called the other management personnel together, and Chen Guangliang also participated, and Chen Guangliang was very happy to see that he could also participate in the management of the village.

Everyone was also excited to hear that a large biogas digester was going to be built, and recently the construction of Hope Village has entered the fast lane, and it is full of vitality. Eventually, it was decided to build the digester outside the city, and move the livestock farm outside the city so that the animal's manure could be fully utilized.

Now that the city is densely populated, it is no longer suitable for the construction of other places. After the last time the livestock farm was destroyed by the rat colony, now the fat man caught some goats and hares and pheasants in traps, and raised them and gave birth to some young children.

Just do it, Li Baoqiang asked Zhang Juncai to cooperate with Chen Guangliang to organize manpower to find a suitable site and dig a biogas digester. Since it is necessary to build a large one, the site is very important, and finally the location of the biogas digester was determined in the potato field fifty meters away from the city wall, and the seedlings that had already produced small potatoes were set out, and everyone was pleasantly surprised to find that these potatoes were about the same size as sweet potatoes, and it was not yet the harvest season, and it was really time to harvest, what kind of surprise should these potatoes give you.

Chen Guangliang does have a level, and he has a clear eye for doing things. First, let Zhang Juncai prepare the materials. Because a 400-cubic-meter biogas digester is to be built, eight tons of cement, 16 cubic meters of sand, five cubic meters of gravel, more than 4,000 bricks, and 100 meters of steel bars are needed.

Then it's time to set off the line. Pay-off digging is the first pass to ensure the quality of the pool, and it must be constructed according to the specified size. Chen Guangliang used white ash to draw the overall plan. The area of the greenhouse and livestock farm is again demarcated, and the livestock farm is on the west side of the biogas digester. After determining the center of the digester and drawing a circle with a radius of five meters, this is the future digester. Determine the position of the inlet and outlet, and mark it with white ash.

Then the organization of manpower began to excavate the digester.

First, determine the height of plus or minus zero. The depth of the pit is determined according to the design drawing, that is, the top of the digester is kept on a level plane with the discharge port, and is 10 cm above the ground of the livestock farm. The feed inlet is 2 cm above the ground, if the digging is too deep to make the biogas digester lower than the ground level, it will affect the supporting use, and the digging is too shallow to make the biogas digester protrude from the ground, causing difficulties for pig raising and solar greenhouse fertilization.

In order to facilitate the placement of the pool mold or the use of brick mold to pour the pool body and reduce the loss of materials, the pool pit should be round and vertical up and down. For the area with good soil quality, the pit wall can be dug straight, excavated from the middle to the surrounding when taking the soil, leave a certain margin when excavating to the pit wall, then find out the center point according to the positioning pile, and nail a fixed wooden pile, fix one end of a rope on the wooden pile of the center point, tie a small hoe at the other end of the rope, make the length of the hoe to the center point equal to the radius of the pool plus the thickness of the wall 6 centimeters to draw a circle, scrape off the sand that obstructs the passage, trim the pond pit while digging, until the design depth.

After the pit is dug, the bottom of the pool is immediately repaired into the shape of the bottom of the pot; Dig a U-shaped shallow groove from the center of the bottom of the pot to the bottom of the water pressure room, and return to the slope of 5%. For the place where the soil is loose, 80 cm below the ground should be sloped to take the soil, the slope size depends on the degree of loose soil, and the pit wall does not collapse as the principle, and at the same time dig the inlet and outlet pits. If groundwater is present, a sump should be dug at the bottom of the pond to allow for drainage.

Then there is the use of concrete pouring. The bottom of the pool, the pool wall and the lower part of the hydraulic pressure room are made of concrete as a whole, and the upper part of the pool arch cover and the hydraulic pressure room are made of bricks. After several days of continuous construction, the construction of the discharge port, the pool wall and the hydraulic pressure room, the construction of the pool arch cover, and the construction of the bottom of the pool have all been completed, and the biogas digester has begun to take shape.