Chapter 1146 The first phase of the project covers an area of 40 million acres!
What was originally thought to be a huge obstacle has now been solved with one sentence.
For Zhuang Bingchang, there are definitely surprises.
But there are still more doubts in my heart.
It’s not that I don’t believe in Chang Haonan’s level.
It is true that the results given by the other party are a bit too accurate.
The two main ingredients, especially sodium carboxymethyl cellulose, are not a common curing agent in this type of research.
It’s not even a common chemical product.
Although "modified cellulose" belongs to a relatively popular category of biomass products, for now it can only be regarded as a promising future.
To be able to specify one of the special categories so accurately must go through quite rigorous argumentation.
However, as the front-line person in charge of the experimental fields in Mongolia Province, Zhuang Bingchang knew very well that Chang Haonan had not conducted similar soil modification experiments——
Let alone the local area.
Since 2000 to now, the latter has only asked him for soil samples twice.
It’s not just for experiments, but for soil mechanics modeling and improving the geological surface database.
How did this argument process... come about?
Zhuang Bingchang, who was a little confused, hesitated for a moment, and asked cautiously:
"Academician Chang, would it be inconvenient for me to reveal why these two main ingredients are used?"
Actually, Of course it's inconvenient.
Inspiration is inspiration, but being able to transform inspiration into concrete results in just a dozen hours is thanks to the help of the system.
He directly skipped many unnecessary trial and error links, analyzed and calculated the interaction between different hydrophilic/hydrophobic groups and the surface of soil particles at the molecular level, and finally screened out A relatively balanced result in both cost and performance.
Even for Chang Haonan himself, this process takes a while to fully digest. For outsiders, it is extremely tearing, and it is impossible for anyone to understand it.
Fortunately, Chang Haonan had already thought of another explanation while waiting for the results.
“A few years ago, didn’t we establish a database of soil materials in various regions of Mongolia Province... A while ago, when I was routinely reviewing the literature, I found that foreign scholars used polyvinyl alcohol cured materials to A soil body with similar characteristics has been transformed...Although the result failed, the failure cannot be explained by the direct polarity combination theory used in the past..."
He opened it on the computer as he spoke He wrote a paper, as well as the log file of the last round of calculations a few hours ago:
“I used the soil database we established to theoretically restore his experimental results several times, and finally basically It is determined that there are four main mechanisms of action of water-soluble or semi-water-soluble polymers on sandy soil micelles."
"First, by replacing cations on the surface of the micelles, the thickness of the electric double layer is thinned, increasing the attraction energy between particles, and promoting aggregation between particles; second, the carboxyl groups on the molecular chain and the hydroxyl groups on the soil surface form hydrogen bonds to strengthen the soil's stability. Structural stability..."
"The third is that the hydrophilic groups of the polymer are adsorbed on the surface of the soil particles, and the hydrophobic groups repel the infiltration of water, enhancing the water stability of the soil; the fourth is that the soil particles pass through the polymer The chains overlap each other to form a network structure, which further strengthens the structure.”
“After the main mechanism is determined, the only thing left is to perform calculations at the molecular level. This is a more time-consuming process, but it is good. The principle is not complicated... Just repeatedly sample the configuration space of the system particles, calculate the total energy, and then obtain the most probable conformation and thermodynamic equilibrium properties of the system..."
"..."
This set of rhetoric highlights nine truths and one falsehood.
If you come to an expert in computational chemistry or computational materials science at the same level as Chang Haonan, you may be able to hear some problems.
For example, the last calculation process is a task that is simply impossible for today's computers to complete within a limited time.
Unfortunately, in this era, it may not be easy to find such a number one person.
As for Zhuang Bingchang, who was born in agriculture, he gave up completely when he heard the middle.
He even felt a little regretful for the first time——
If I had known this, I should have studied mathematics in depth when I was young...
But this feeling is almost fleeting.
After all, if you don’t know mathematics, you just don’t know it.
"Okay..."
He decided not to delve into the issue further:
"Then our next step is to go back to the experimental field and conduct sand modification tests in blocks?"
In most cases, even if the main ingredients have been confirmed theoretically, the suspension after the cross-linking reaction occurs. The liquid system is still too complex, so the specific ratio and preparation method still need to be carried out through experiments.
Of course, with theoretical guidance, the efficiency will definitely be much higher than aimless rough screening.
However, Chang Haonan gave a refusal almost without thinking:
“No, this is not urgent.”
Zhuang Bingchang was about to get the water when he suddenly froze:
"Have you figured out the detailed ratio?"
"That's not true...I'm not that good yet."
Chang Haonan smiled helplessly and waved his hand quickly:
“It’s just that before you return to Mongolia, there is one more thing that needs to be done.”
Zhuang Bingchang curled his lips secretly and said to himself, maybe, what you suddenly brought out was not enough...
But on the surface, he still pretended to listen carefully.
“With these results so far, we can no longer stay in the small fuss in that experimental field.”
Chang Haonan turned his attention back to the screen:
"I am going to submit a report to my superiors to apply for increased investment in research and development of supporting technologies related to sand conversion, so I need your help to complete a report..."
...
If Chang Haonan’s dual academician title has brought him any substantial benefits.
The most obvious one is definitely that he has the right to bypass the intermediate levels and submit suggestions or applications directly upwards.
Of course, high-level leaders have a lot to deal with every day, so if you just use any trivial matter to cause trouble for others, don't blame the secretarial department for blocking the materials.
Most of the time, you still have to follow the normal step-by-step declaration process——
But this time the project is related to the jobs of 1.3 billion Chinese people. It is simply not something that the Industrial Construction Committee can decide.
Even on the attendance list for the project demonstration meeting determined half a month later, Li Zhongyi’s name could not even enter the first row of the list...
Chang Hao Nan is used to this.
But Zhuang Bingchang is different.
Although he was a well-known professor at the Academy of Agricultural Sciences in the past, this was the first time for such a big scene...
In the side hall temporarily used for rest, Zhuang Bingchang, who was about to come on stage, held a A manuscript, pacing back and forth.
"Academician Chang, if the leader later asks about the solidification principle..."
Chang Haonan, who was sitting on the sofa, smiled bitterly and interrupted him:
"Professor Zhuang, this is the third time you have asked me the same question in the past half hour..."
"In short, you should remember that first of all, the leader is a layman in the fields of chemistry and agronomy, and it is unlikely that he will ask such a specific technical question. Secondly, even if he does ask, unless it is related to breeding, I will answer it... ...You just need to summarize and report on the work of the past few years according to the rehearsals of the past few days."
Zhuang Bingchang nodded slightly awkwardly, then took out his handkerchief and started to wipe his sweat:
"To be honest, Academician Chang, there was no transition at all. It was like this at the beginning. I was really nervous..."
"..."
If this continues, Chang Hao Nan had no doubt that the other party would ask the same or similar question for the fourth time.
Fortunately, a staff member came in a few minutes later and informed the two that they could play.
......
This kind of high-level meeting that is not open to the public does not have too much red tape.
In particular, Chang Haonan is still a famous figure.
After a brief self-introduction, we got to the point:
“As we all know, in recent years, due to human engineering activities and changes in the natural environment, various ecological and environmental problems have arisen in the originally fragile ecological functional protection areas. Among them, desertification is caused by soil loss and degradation after the destruction of slope vegetation. "Especially Xinjiang, Tibet, Gansu, Qinghai, and Mongolia, which account for 95.64% of the total desertified land area in the country, which has seriously restricted the economic and social development of these areas and is not conducive to the development of the western region. Promotion and implementation of the strategy..."
"Since 2000, the project team led by me and Professor Zhuang Bingchang of the Jilin Academy of Agricultural Sciences has been conducting a four-year pilot project on desert soil transformation in western Mongolia. , So far, remarkable results have been achieved in theory and mu-level small-scale testing..."
"..."
In front of the leadership, Chang Haonan naturally cannot use too much space to Explain advanced topics such as shear rheology constitutive models, enthalpy control strategies, chemical bond formation mechanisms, or colloidal particle self-assembly processes.
Together with Zhuang Bingchang, they briefly introduced the entire research and calculation process, and then switched to the core topic before the first person dozed off:
"I think there are already Sufficient conditions, based on our transformation plan and combined with the actual situation, we will conduct demonstrations in the three agricultural production areas of Horqin Sandy Land, Hunshandake Sandy Land, and Hulunbuir Sandy Land, which are located in the eastern part of Mongolia Province and have been significantly degraded in the past decade. Transformation... But the specific scale of the pilot still needs to be decided by the leaders..."
When he said this, not to mention the leaders below, even Zhuang Bingchang couldn't help but show an expression of astonishment.
He did hear Chang Haonan say that he needed to find his superiors to increase investment.
But I never expected it to be an increase in this sense.
To use an analogy, it is equivalent to jumping from the past small trial stage directly to industrial trial production...
The leaders in the front row who could participate in the final decision-making also looked at each other, and then discussed in low voices for a long time. .
After a while, one of the representatives asked a question:
“Before the meeting, I saw the information on your experimental fields in western Mongolia Province. to 100 acres, but the surrounding area is very empty... Why not choose to continue expanding at the original location, but move to the eastern part of Mongolia Province?"
Chang Haonan has already drafted this question:
“After all, agricultural production is different from technical experiments that pursue the ultimate limit. Even if there are qualified soil conditions, it still needs suitable light and precipitation... The eastern part of Mongolia Province belongs to the northeastern region, and the precipitation is almost twice that of the west, making it more suitable for agricultural production. Really large-scale planting, with greater potential to increase production, has the potential to alleviate the shortage of cultivated land in our country..."
"Relieve the shortage of cultivated land..."
The leader who just asked the question shrank his pupils. , almost lost control of his identity.
After a few breaths, he sat up straight and his tone became serious:
"Comrade Chang Haonan, do you know...the weight behind this sentence?"
>
Of the 100 topics that study the environment and agriculture-related fields, I am afraid that 101 will mention similar statements.
But it is one thing to brag in the project proposal, but it is another thing to say it in front of so many high-level leaders.
The job problem.
It cannot be valued enough.
Chang Haonan nodded firmly.
"Of course."
It was only then that everyone finally realized.
The "large scale" mentioned by Chang Haonan may be much more exaggerated than their previous estimates.
"Comrade Chang Haonan, I hope you will consider the following question carefully before answering."
The leader's upper body leaned forward slightly and cast his sharp gaze on Chang Haonan opposite:
"If you don't consider the investment and other costs, how much area do you think the demonstration transformation you just mentioned has the potential to cover?"
In fact, Chang Haonan has really talked about this matter in the past few days. Forget it.
The final result even felt a bit exaggerated to him.
So, it has been calculated more than once.
But since the leader asked you to think carefully, it is definitely not appropriate to blurt out.
Therefore, Chang Haonan deliberately lowered his head and pondered for a full three minutes:
"If all three pieces of sand are included, a conservative estimate...is about 40 million acres!"
(This chapter End)