When he was thinking about what else to write, there was a noise outside, and it turned out that Wu Nanhai from the agricultural group and He Ping, who was sent by Shi Yuanren to disinfect the toilet, quarreled, and ran all the way here to ask for an explanation. Although He Ping was an employee of a state-owned pharmaceutical factory before the crossing, he was actually engaged in the maintenance of equipment and instrumentation, and did not understand drug pharmacology and other things, and the health team asked him to come because his wife Zhao Yanmei was a jishu member of the mold seed laboratory of the pharmaceutical factory - Shi Yuanren was preparing to go to the pharmaceutical factory project in the future, and Zhao Yanmei had to keep Zhao Yanmei first, and of course the wife had to keep her husband.

He Ping, who has a rectangular face and glasses, looks like a scholar, simply became a clerk of the health team, doing chores and running errands or something. Why did you quarrel with someone for no reason?

When I went out, Wu Nanhai, the fat man, grabbed He Ping with an indignant look, while He Ping looked aggrieved, and he was carrying a nylon bag of lime in his hand.

"You told him to sprinkle lime?" Wu Nanhai saw that the leader had come out, so he concentrated his firepower on Shi Yuanren.

"What? Is there a problem? Our sanitation team is disinfecting the toilets. ”

"Do you know chemistry?" Wu Nanhai pointed to lime, "Farm fertilizer such as manure is nitrogen fertilizer, and it cannot be mixed with alkaline fertilizers such as plant ash and lime. The result of mixing is neutralization failure. You sent a lot of people to sprinkle lime so much, what's the use of the feces and urine in this toilet?! ”

Shi Yuanren's face is very ugly, he is also a doctor in the United States, medicine is called a beast, he has operated in the United States, and he has prevented the epidemic in the imperial capital. However, after thinking about it, Wu Nanhai, as the person in charge of agriculture, is also one of the members of the executive committee, and agriculture is an industry that the executive committee is preparing to work in a big way, and I am afraid that in the future, many logistical support matters will have to rely on the agricultural department -- he himself is the person in charge of the health department, and the responsible persons of the two sides will fall out in person, and in the future, there will not even be a point of turning around. He calmed down a little and suppressed the fire. He really didn't think about this fertilizer effect, and used lime to disinfect the toilet, which is the simplest and most common disinfection method. When disposing of the excreta of infectious patients, disinfection with lime is almost a necessary procedure.

"It was our negligence." Shi Yuanren hurriedly greeted him, and coaxed Wu Nanhai away with kind words, and Xiao He looked unhappy - he was still said to be no.

"Isn't it just? Wouldn't it be nice to give him a few more bubbles! ”

"We're learning by doing, too." Doctor Shi reassured his soldiers, "Wu Nanhai needs to rely on fertilizer to engage in agriculture -- what kind of crops, flowers, and so on. "One glance at the lime bag, it barely used much. The lime was still brought from the construction department - he couldn't bear the bleaching powder - and it was going to be used to treat drinking water.

Lime can't be used, bleaching powder is reluctant, and the harmless treatment of feces has to be thought of separately. He knows that there are many kinds of harmless treatment of general excrement, such as lime and bleaching powder, which work quickly, if not, the easiest way is to seal and store, but there must be a three-level septic tank - the worst must also have a fecal tank...... Do you want some natural plants? He remembered that the book he had read said that some natural wild plants could also be substituted. The problem was that he couldn't remember exactly which plants they were, and he hadn't studied Chinese medicine, so even if he knew the name, he might not recognize it.

Just thinking about whether to make a report and ask where there are talents in traditional Chinese medicine, Tian Jiujiu came in again and asked the health team what kind of water treatment method they planned to use, so that they could come up with a water supply plan for construction as soon as possible.

"It's really one out and one in." Shi Yuanren muttered to himself.

"What?" Tian Jiujiu was puzzled.

"It's nothing, I'll come to the construction site."

The water supply system is carried out under the direct control of the sanitary group, and the shallow groundwater near Bopu is relatively salty and unsuitable for drinking water, and the deep water is not yet available for exploitation. The only feasible thing is to pump water from the Wenlan River.

As a water supply, the most ideal is spring water or deep groundwater, such as the Wenlan River, the flow is larger, there is a relatively haode self-purification ability, and it is also a water source that can be used, but this is a river delta area, the water quality is generally more polluted, and the water treatment is more complicated.

Shi Yuanren tested the depth and flow of water, and took a 250ml water sample from 50 centimeters below the surface of the water.

Looking at the results, he shook his head again and again. It was thought that the river should be very clean in terms of pollution in the 17th century, but the fact is that although there is little sediment in the water, there is a lot of algae. It shows that the organic matter content in the water body is too rich, which is of course not strange in modern time and space - it is all caused by chemical fertilizers, but there is no chemical fertilizer in the Ming Dynasty, and such a high organic matter content only indicates that the middle and upper reaches of the river water are developed agricultural areas or residential areas.

Of course, it is not impossible to use this water, and according to the observation of Yuanren, this water also has the standard of Class III water according to modern standards - the water intakes of some urban waterworks in modern times cannot meet this standard.

In order to use such water quality as drinking water, it is necessary to use a rather complex sedimentation, filtration, and disinfection process, and no matter which water supply mode is adopted, sedimentation tanks, filter wells, disinfection tanks, and canals are required...... Isn't that a fantasy for an engineering team that is in dire need of building materials?

Considering the terrible situation of infectious diseases in ancient times, there is a high possibility that the water body contains cholera typhoid bacteria. Shi Yuanren thought twice about it, and thought that it would be better not to use the river water until there were no conditions to build a water treatment facility.

"Let's send fresh water from the boat to the shore." He sighed and went directly to Ma Qianzhuo to report.

Ma Qianzhuo didn't know much about how to solve the problem of fresh water on the ship, so he called Mondstadt and asked him.

"There is water on the boat, but it won't last long." Mondstadt explains: "A typical hull design has at least two freshwater tanks. One is the storage of drinking water, which is the fresh water that is connected to the shore after entering the port; A storage day water is distilled water condensed from the cooling water of the main engine. This kind of soft water from seawater desalination is usually used for hygiene and washing, and is generally not drunk. Sometimes drinking water is not enough, but it can also be drunk.

Because the Fengcheng ship is designed as an ocean-going ship, it has 4 freshwater tanks, and the storage capacity is quite large. But the original design was to supply forty or fifty crew members, and now there are nearly six hundred people, which is a little difficult. The amount of newly produced distilled water is limited when the auxiliary is running, and it is not possible to supply it on a large scale for a long time.

"Fresh water with auxiliaries!" Ma Qianzhuo listened to his report, his brows furrowed, "This is using diesel fuel for water!" He was a little sorry, "There's no diesel in the river." ”

Shi Yuanren knew that he was distressed about the oil on the ship, but he knew that in Lingao, there were widespread epidemics of intestinal infectious diseases such as cholera, typhoid, and paratyphoid fever in history, and until the seventies and eighties of the 20th century, cholera typhoid fever had a small outbreak. Although they have been vaccinated with the help of modern medicine, there is no guarantee that they will be fine - even if they do not have an infectious disease, the outbreak of acute enteritis is enough for them.

After discussing the pros and cons, Ma Qianzhuo had no choice but to accept this suggestion. In order to conserve water as much as possible, the command decided to set up a centralized water supply station on the shore, lay water hoses with floating bucket lines, and divert fresh water from the ship to a 2-ton stainless steel water tower in the living quarters - for drinking and washing only.

"As for taking a bath or something, let's get over it for the time being." Ma Qianzhuo knew that this policy of limited supply of fresh water would definitely attract him countless curses, but he had no choice but to do so. He sat down and drafted a document that was sent out by the OA. "Building materials" he wrote on his notepad, many things today are limited by this building materials, and he must try to solve them when he meets in the evening.

The twilight is getting thicker, and the day of D-Day is about to pass. With the order to "call it a day" from the walkie-talkie, the traversers who had worked for a day at the outlying construction site converged to the camp in twos and threes.

A member of the logging team, talking as he returned from the mangrove forest. Carrying tools on their shoulders, although their bodies were tired, there was a warm emotion in everyone's hearts, and the feelings between each other seemed to have increased a lot.

The tide is receding, and the sea is washing over the rocks of all sizes in the bay. From a distance, the western skyline shows the outline of the high angle. The blood-red sunset slowly sank in the scattered clouds. The sky and sea of Bopu Bay are blended together and shine brightly. The sea, as if it had been burned by a fire, turned golden red.

The fleets of the traversers were moored in the bay one after another, the dark shadows of the ships were set with a radiant gold rim by the sunset, and these ordinary cargo ships and fishing boats, which could no longer be ordinary, seemed to them to be as magnificent as the Imperial fleet in Pascal Bay.

The magnificent scenery fascinated them, and the inexplicable excitement silenced them, and not only them, but also the traversers who had returned from other peripheral construction sites slowed down and looked at this magnificent scene.

"Let's go, everyone, it's getting dark." The military team members on the side of Zuihou greeted them while checking to see if there were any crossers who had fallen behind. According to the plan, they are going to walk in zuihou. Make sure no one is outside the camp after dark.

"Turret!" Someone shouted, and everyone looked in the direction of the camp, and the beacon tower had been surrounded by earthen fences, and barbed wire had been erected on it.

After a day of construction, the whole camp began to take shape, with the beacon tower and the house of the inspection department as the core, and the whole camp was in an irregular pentagonal shape. A trench 5 meters wide and 2 meters deep was excavated on the periphery, attracting water from the Wenlan River, and the inside of the trench was measured to be 1 meter higher than the outside, and barbed wire was laid on it. The barbed wire fence is 2 meters high, fixed with wooden stakes and sturdy burial, and the lower part of the barbed wire is additionally laid with snake-bellied barbed wire. Behind the barbed wire, a long barricade was rammed with the earth from which the trenches had been dug, and trenches were dug on it. In addition, six 8-meter-high wooden watchtowers were built on the long base.

At this time, torches were lit along the long fortress to illuminate the trenches. The gates of the camp were open. On the gatehouse, two sentries with rifles stood by a searchlight, and two calcium carbide lamps hung under the gatehouse, the light was dazzling. Traversers pass through the gate, scan dog tags at the manpower registration desk at the gate, and then return tools and excess materials at the Commission's stocking point.

"Liu Zheng, right?" The female clerk of the manpower team looked at the profile and photo displayed on the computer screen, and then compared it with his face, "Your barracks number is No. 14, Block B." ”