The rise of nanometers

Two intern researchers from the laboratory, wearing full protective clothing and gas masks, entered the production workshop.

Ten samples were taken from the desalination tank, dehydration tank, and collection box.

The technicians in the desalination workshop also took some samples and conducted rough tests in the factory's simple laboratory.

Everyone who got the rough test report found that whether it was water-containing waste or dehydrated waste, after desalination by the new process, the salt content was almost zero.

You should know that the salt content of unprocessed kitchen waste is not low, generally between 0.08% and 0.2%. That is, 1 ton of kitchen waste contains about 0.8 to 2 kilograms of salt.

Although this amount is quite low, if converted into relatively dry organic fertilizer, 1 ton of kitchen waste can be converted into 0.2 to 0.3 tons of organic fertilizer, but they still contain 0.8 to 2 kilograms of salt during the conversion process.

This means that the salt content has been increased to 0.32% to 1% in disguise, which is equivalent to enrichment.

As for the salt content of livestock manure, it is as high as about 0.97%. If it is dried and enriched, it will increase to about 3.8% again.

If there is no desalination, each ton of organic fertilizer is expected to contain 20 to 30 kilograms of salt. Organic fertilizer with such a high salt content will cause serious harm to crops, soil, and water bodies.

This is also a common problem with organic fertilizers in small workshops. If this kind of organic fertilizer is used in the hot and rainy southern areas, the most harmful effect will be burning of seedlings.

However, if it is used in northern areas, due to low precipitation, the salt content of the soil cannot be washed away by rainwater, and the result will be salinization of the land.

"It seems successful." Huang Xiuyuan turned around: "Guotong, do you estimate how much the desalination cost can be reduced?"

Huang Guotong, who had already prepared the draft, hurriedly replied: "Mr. Huang, in daily use of the new process, in addition to heating water, it also consumes electricity. I just estimated the electricity consumption and it is estimated that it can reduce desalination costs by 70 to 80%. "

For Suiren companies that use self-sustained power supply, using electricity means lower costs.

Huang Xiuyuan then asked: "The third phase of the factory should be completed, right?"

"It's done. It will be completed and accepted in the middle of this month, but it hasn't been used yet." Huang Guotong admired the forward-looking planning of the factory.

He had previously made a report, hoping to postpone the third phase of the project, because the first and second phases of the factory still have 50 to 60% margin to cope with the production of municipal waste, liquefied gas, and organic fertilizers in the city.

"Then transform the third-phase factory building into a deep recycling factory." Huang Xiuyuan then ordered Du Jinhua:

"Jinhua, your engineering team is fully cooperating with the factory. I require all-round recycling of industrial sewage and industrial solid waste."

Du Jinhua immediately responded confidently: "Don't worry, Mr. Huang, we will go all out."

With six-cone spherical oxygen, a fast water filter with seven-sided silicon oxide-graphene membrane, and a high-efficiency nitrogen-16 catalyst, with this set, almost all wastes except nuclear waste can be processed with high efficiency and low price. Recycle.

This level of recycling is perfect, and it is also a method that will be adopted on a large scale after 2043, which greatly reduces human exploitation of natural resources and effectively curbs waste waste and pollution.

The third phase area of ​​Guizhuling factory.

Huang Xiuyuan and Du Jinhua's engineering team participated in the design of the deep recycling workshop. The design of the deep recycling workshop referred to part of the desalination workshop plan.

During the new process testing in the desalination workshop, some minor problems were discovered one after another. For example, after the solution is energized, a small amount of electrolytic hydrogen and electrolytic oxygen will be produced.

If not handled in time, once the number of reactions increases, the concentration of hydrogen and oxygen in the workshop will continue to accumulate, which may eventually cause a hydrogen explosion.

The solution is to send the hydrogen to the gas generator for combustion to generate electricity. This reduces dangerous problems and can also recover part of the energy.

The design of the deep recycling workshop is also developing through bumps and bumps.

After repeated adjustments, the recycling workshops are divided into two main types, namely water-soluble pollutant recycling workshops and insoluble pollutant recycling workshops.

Then, the order of recycling elements was designed based on the different temperatures of the robbery reaction.

…

In Meilong Town, Haifeng County.

Two intern researchers and two sewage suction trucks modified from fecal suction trucks are working next to a river, sucking water from the river and discharging filtered pure water into the river.

Tian Xin, who just graduated this year, looked at the river in front of him and his face turned pale: "The pollution is too serious."

Colleague Wang Kainan on the side spread his hands helplessly: "Under normal circumstances, pollution from these small electroplating factories is almost unavoidable."

On both sides of the river are large and small gold and silver jewelry processing factories, hardware processing factories, and electroplating factories. The electroplating wastewater from these small factories is almost directly discharged into the river. Even if it is treated, it is simply filtered and settled.

Within the jurisdiction of Haifeng County, the jewelry processing industry in Meilong Town, the jewelry processing industry in Ketang Town, and the clothing processing industry in Gongping Town are all local pillar industries.

In particular, the jewelry processing industry in Meilong Town and the jewelry processing industry in Ketang Town are famous in the industry across the country.

It’s just that jewelry processing and jewelry processing, while bringing economic benefits, also bring huge pollution.

This kind of pollution is so terrible that it exceeds the scope of the environment's own self-purification.

Let’s take a look at the rivers in the United States. Why are Asian carps flooding after they were introduced, but locals rarely eat these Asian carps? It’s not because they don’t taste good, let alone because there are many fish bones, but it’s a very real problem, that is Asian carp contain excessive levels of heavy metals.

Why do Asian carp contain excessive amounts of heavy metals?

Because of these rivers, a large number of factories previously discharged sewage, causing pollutants to be deposited in the river beds, silt, and surrounding animals and plants.

Although these American rivers look "beautiful" after surface modification, in fact a large amount of pollutants still remain.

For example, the main pollution in Meilong Town is electroplating wastewater.

The composition of electroplating wastewater is very complex. In addition to cyanide (CN-) wastewater and acid-base wastewater, heavy metal wastewater is a potentially harmful wastewater category in the electroplating industry.

According to the classification of heavy metal elements contained in heavy metal wastewater, it can generally be divided into chromium (Cr) wastewater, nickel (Ni) wastewater, cadmium (Cd) wastewater, copper (Cu) wastewater, zinc (Zn) wastewater, Gold (Au) wastewater, silver (Ag) wastewater, etc.

This sewage is very toxic and may not be reflected in the human body for a while. However, over the years, humans at the top of the food chain will inevitably accumulate these heavy metals in their bodies.

Tian Xin grew up in the city. Suiren Company was her first official job out of school, and it was also her first experience of severe pollution in underdeveloped areas.

Sacrificing the environment and the health of local people in order to increase the gross production value of machinery is a kind of development that will annihilate future generations.

"If you see it more, you won't be surprised and disgusted." Wang Kainan looked at the discharged pure water.

Suddenly Tian Xin suddenly said: "I suddenly realized that I seemed to be doing a great career."

Holding a handful of pure water with his hand, Wang Kainan smiled: "Yes! This is indeed a great career."

"Work." Tian Xin encouraged herself.

The two sampled soil, silt, plants, and insects around the river.

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