Agriculture Idol

Chapter 131 Filtration System
After taking a lot of effort to move the two heavy wine barrels to the top floor of the Geyue Entertainment Building, the work that needs to be done by Li Chengxin was laid out one by one.

Because two wine barrels were brought, and when installing the gutters, the master from the maintenance department made only one drain. In order to make up for this problem, the master instructed Li Chengxin to make another drain. Make some structural changes to the gutters.

Next, Li Chengxin continued to use very unskilled techniques, using an electric saw to cut a round hole on the top and bottom side of the wine barrel that could be inserted into the bamboo tube, and cut an opening and closing observation window next to the top round hole. hole.

The connection between the drain and the wine barrel is a thin bamboo pole pierced in advance. In order to allow the water to flow smoothly into the drain, the upper end of the thin bamboo pole needs to be curved to match the bottom of the bamboo gutter.

The hole punched at the lower end of the wine barrel is also fitted with a bamboo tube, and the front end of the bamboo tube is wrapped with palm and cotton cloth with thinner bamboo to make a stopper of the same style.Before the pond was put into use, the purpose of these two wine barrels was to store water, and when the pond was built and the plug was opened, the stored rainwater could become the water source of the pond.

After that, it rained for two consecutive days in Lanhai City, and the gutter quietly took on the job of receiving rainwater as Li Chengxin thought, and the water finally entered the wine barrel smoothly.

After the water tank is made, the next step is to start.

Just like when Li Chengxin and Brother Xiaoyong repaired the well a year ago, Li Chengxin sent the water in the wine barrel to a special institution for testing.

In fact, the rainwater in Lanhai City is not clean. The water taken from the bucket is cloudy and light yellow in a transparent glass bottle. This is also one of the problems of big cities-air pollution.

In big cities, sulfur dioxide from factory exhaust and car exhaust dissolves in rainwater and falls, and dust from various reasons also mixes with it, which is why the water stored in wine barrels is so cloudy.

"Although there are organisms that can survive in sewage, most of the insects you want are unlikely to live in pure rainwater. The rainwater in Lanhai City has always been acid rain." Ma, a staff member whose background is insects Bo said so.

Not long after, the water quality report was brought back, and the acidity of the water was indeed very strong, with a pH value of only 4.5, which made people worry about whether they would become bald and stronger after being drenched by the rain in Lanhai City.

Regarding acid rain, Li Chengxin had long planned that these two buckets should have the functions of storing and filtering water.Li Chengxin had come into contact with knowledge about water source filtration when he and Brother Xiaoyong were building wells on Zhangba Island.

"The filtration system is the same as the well water filtration at that time!" Li Chengxin was very confident.

The required materials are fine sand, charcoal, and small stones, which are basically available everywhere.The fine sand layer filters out larger dust and impurities in the rainwater, the small pores on the surface of the charcoal can adhere to the fine dust that makes the water turbid, and the microorganisms in the pebble layer will eat the impurities that have not been filtered out.

Water filtered in this way can even be used as drinking water in an emergency.

Just when the pond bottom mud was dug to make flower beds, the crushed stones that were sifted out were not thrown away, and the layer of small stones was resolved.

For the fine sand, the master in charge of the tool maintenance department took a bag from Geyue Entertainment's inventory, which was stored in the basement itself, and even the warehouse manager didn't know why it was there.

The barbecue charcoal and activated charcoal granules that can be found on the market seem to be very suitable for this place, so the charcoal can only be made by myself - of course not by Li Chengxin himself, but entrusted to his parents in Hongming Village.

Generally speaking, the trees suitable for making charcoal are usually oak broad-leaved wood. The earthen kiln dedicated to charcoal burning is filled with wood and covered with a thick layer of soil. In an almost completely airtight condition, avoid excessively violent burning. The wood is slow fired so that it does not burn completely and ends up as charcoal that retains its original shape.If it is mixed with air, the wood will burn blazingly until it is burned to ashes.

In fact, as long as it is a plant, no matter what can be turned into charcoal, considering the size of the wine barrel, Li Chengxin, a pseudo-literary youth, asked his parents to burn charcoal with pine cones.

In addition, according to his request, his parents asked the villagers to collect a lot of empty shells and oyster shells from the sea. After cleaning and removing the salt, they packed them and sent them to Geyue Entertainment together with charcoal.The main component of oyster shells is lime, and the purpose is naturally to reduce the acidity of acid rain.

Fortunately, Li Chengxin told the front desk of Geyue Entertainment about the arrival of this package in advance, otherwise this huge package of more than 20 kilograms, which is different from the usual small fan gifts, would probably confuse the front desk.

It was a rare sunny day in the rainy season. On the floating platform on the top floor of Geyue Entertainment, a row of small charcoal stoves were lined up, and empty shells were placed on the barbed wire above the charcoal stoves.

[Charcoal grilled oysters?What about oysters?Why only empty shells? 】

【It’s not like we’re going to eat it all, let’s see, right? 】

Li Chengxin replied with a smile: "What we are burning are empty shells. These shells will be put into wine barrels to adjust the water quality. Just in case, all the shells are roasted to disinfect them first."

Then, Li Chengxin picked up one of the shells, pointed to the black spots on the shell and said: "For example, this shell, the reason why it turned black after being burned is that there were organic matter attached here, and it would rot if put directly into the water. , affect the water quality and make the water smelly."

Following Li Chengxin, several staff members also began to roast the remaining shells with another charcoal oven.

The materials for the filtration system were almost prepared, and Li Chengxin began to put them into the wine barrel in the order of gravel, pine cone charcoal balls, fine sand, and shells.

In this way, can the acid rain falling on Lanhai City, after being filtered by this system, become water that can actually survive?The results will be announced in two days.

[The broken chapter is presented by Gouzi! 】

【What?Is the content of today's live broadcast only roasting empty shells?Believe it or not, I gave a bad review! 】

[It's been raining in the back of Lanhai City for two days... I don't want to go out! 】

Two days later, Li Chengxin came to check the rainwater in the bucket.

Pull out the bamboo plug at the bottom of the barrel, and clear water gushes out.

Li Chengxin still filled a glass with a transparent glass. This time, the water in the glass was already very clear.

This time, Li Chengxin brought a simple pH testing kit purchased by Moubao.

Open the sealed reagent pack, suck some water in the cup, and soon, the water in the sealed reagent pack turns yellow-green.This is not the color of the water itself, but the result of the interaction with the reagents in the sealed bag.

Comparing the sealed reagent pack with the attached color card, it can be concluded that the pH value of this water sample is between 6 and 6.5, that is to say, the change of the water quality has been successful, and organisms can already survive in it .

In this way, the filter system is finally completed.

But... the pond will be built next, when will Brother Xiaoyong come back!
Li Chengxin's schedule has been arranged. After the concert in August, he will go back to Hongming Village to help the professors and students of Ocean College do some seaside research activities. Therefore, the pond needs to be completed before August. .

In addition, for creatures, water is an oasis. Before the hot summer comes, it is necessary to accumulate rainwater and build a pool here as a habitat for creatures to live in peace of mind. This timeliness is also very necessary.

(End of this chapter)