All manure and other aquaculture wastes produced by the farms are piped into the large biogas digesters in the farms for harmless treatment.

In addition to the farm's own use, the biogas produced by the digester is sent to a pressure vessel for storage.

Gas pipelines laid underwater do not affect the passage of water transport platforms in the water network.

A large amount of plant ash produced by the power station, as well as the digestate from the biogas digester, is transferred to the place where it is needed by the water transport platform to improve the soil quality and increase the fertility of the soil.

The biogas slurry is discharged into the water network to increase the plankton in the water body and provide nutrients for the farmed fish, shrimp, crabs, etc.

The biogas slurry produced by all the biogas digesters in Huaxia City is a drop in the bucket for Yunmengze, a water network with a water area of thousands of square kilometers and most of the silt cleaned up.

Coupled with the large amount of water and fertilizer required by the planting industry in the water network, as well as the continuous replenishment of clean water in the Han River and the Yangtze River waterway, it is impossible for the Yunmengze water area to develop towards eutrophication.

……

The two cities planned by Huaxia Guoxin are not as large as Huaxia City, and only four urban units have been identified for the time being.

Due to the excellent scalability of urban units, the flexibility to increase the number of urban units can meet the needs of almost any situation, even if there is greater demand in the future.

The location of the construction of Yiling New Town was determined to be the location of the Xiling District of Yichang City corresponding in the real world.

Only that area can lay down the pattern of expanding the Nine Palaces Bagua City in the future.

When Wei Minsheng was consulted, the new city, located five kilometers south of Yiling City, was directly named Yichang.

According to the historical development of the real world, the name of Yichang actually appeared in the Eastern Jin Dynasty.

However, due to the appearance of Wei Minsheng, the name of Yichang was directly determined decades in advance.

Of course, this is not Wei Minsheng copying other people's wisdom, but in order to better correspond the geographical location of the two worlds, which can save a lot of trouble in changing names frequently in the future.

According to measurements, the average elevation of the area where Yichang New Town is located is close to 60 meters, and according to real-world records, the water level of the Yangtze River during flooding is only more than 50 meters.

Through the survey of the geological form of the new city, there are no traces of flooding in the nearby area, which also shows that this area is a natural place to build a city.

In addition, there are standard urban units built by Huaxia Kingdom, as well as an underground pipe network of about 10 meters and other building facilities.

Therefore, unless you encounter a dammed lake caused by a landslide in the upper reaches of the lake, and when the dammed lake bursts, you don't have to worry about seeing the sea in the city.

According to the high-definition digital photos provided by Guangliang Surveying and Mapping Company, the location of each unit was determined according to the scale of the nine urban units, and then according to the topography, the four urban units with the smallest amount of work were selected as the rising place of Yichang.

The former Yiling City has long been under the jurisdiction of Huaxia State, but Huaxia State has not expelled the wealthy families in the city.

Some wealthy families were unwilling to give up their original way of life, so they sold the fields and property that could not be taken away at the price announced by Huaxia, and chose to leave with their belongings and clansmen.

The rise of Huaxia City is a miracle for everyone in this world, because this is a heroic city that is closest to the steel giant city in their minds.

Ever since humans have embarked on a different path of development than other animals, human safety has been the primary concern.

It has been the dream of countless people for thousands of years to have a fortified city that is as strong as a bronze wall to keep out wild beasts and enemies.

When the above-ground part of the first urban unit of Huaxia City began to be installed, even if all the installers were learning and groping, the construction speed of one floor in almost three days made all the people who had participated in the construction of Huaxia City boiling.

No one thought that cities could be built like this, and houses could be built so easily.

Countless people rushed to tell each other, spreading the miracles that happened in Huaxia City to farther places, attracting more curious people.

Since the people of Huaxia City have more ways to escape the threat of cold and hunger, and have more comfortable living conditions, why should they guard the dilapidated old mansion?

In this era of human life, it is not very painful to leave home, and in the face of the choice of life and death, there will be no feelings of homeland.

Therefore, most of the remaining people in Yiling City rushed to Jingzhou in groups to devote themselves to the construction of the miracle of Huaxia City.

After losing most of its civilian population, Yiling City has become increasingly depressed.

The streets that used to be noisy are now deserted.

And those ordinary rich and businessmen, who have no support at the top and no support at the bottom, can only choose to integrate in the end.

Although the various rules of Huaxia Kingdom made them feel a little uncomfortable, more opportunities and broader horizons made them learn to make trade-offs.

What they lost was only the sense of superiority in front of the common people in the past, but what they got from Huaxia was an unimaginable future.

Although Yichang City was built only ten miles away from the old city of Yiling, most of the builders still prefer to live in temporary mobile houses built on the construction site.

Because they have become accustomed to bright windows, strong doors and walls, and convenient lights at night, as long as they lie on an iron bed in a mobile house, that sense of security cannot be given by those windy wooden houses.

They believed that living in such an iron house, even if there were wolves and hungry tigers everywhere outside, they would not be able to hurt them in the slightest.

And the steel monsters on the construction site are even more powerful.

In particular, those professionals who operate all kinds of machinery have an unrivalled self-confidence in their gestures.

In front of the "steel monsters" they manipulated, the thousands of pounds of boulders were like rotten wood, and they could break as much as they wanted, and there was no pressure at all.

Coupled with the experience that everyone learned during the construction of Huaxia City, as long as the various construction materials of Huaxia can keep up, the four urban units of Yichang City will only be completed in a few months.

In addition to the people engaged in various planting and breeding work in the Yunmengze area, as well as the employees of special industries near Huaxia City, nearly 400,000 ordinary people have invested in the construction site between Yichang and Jingzhou.

Once completed, the Jingyi Railway and the adjacent artificial canal will connect Yiling, Yichang, Huaxia City and Jingzhou into a whole, forming a two-hour economic circle.

With easy access to rail and water transportation, Yichang will become a place that is very suitable for prosperity.