Of course, everyone knows that rice cannot be blamed for cadmium pollution.

The focus is still on the metal mining areas of neighboring counties.

This time the pollution was neither unexpected nor unexpected.

Gaolan County, a neighboring county, is rich in non-ferrous metal reserves, and there are more than 20 kinds of proven minerals in the territory, of which lead-zinc ore reserves are the mainstay. Mining-related output accounts for more than 70% of the county's total industrial output.

The source of pollution this time was the accidental rupture of the flood guide pipe at the bottom of the tailings pond in the mining area of Jiangtong Group, and the slag in the reservoir was discharged into the river with the stream water. The polluted water has been flowing down the river into Shuangmu County, and has flowed through many towns and villages in Shuangmu County.

Rice grows in an aquatically cultivated environment, which has an additional way of heavy metal accumulation than in a dryland environment, and the water contains heavy metals, which accumulate with the flow of water into the paddy field. This, combined with the "nutrient enrichment" properties of "Jia Indica No. 1", resulted in "cadmium rice".

After reading the information, Qi Zheng and Wang Yuye were relatively speechless. This is purely unwarranted, and a county can be polluted, which is really "life sometimes has to happen".

Qi Zheng thought for a while and said to Wang Yuye: "As a state-owned enterprise, although Jiangtong Group is not easy to mess with, it can't be treated as such a thing, right? ”

Wang Yuye is indispensable.

......

When you go to Gaolan County, a large mineral county, you can clearly see the impact of large-scale mining on the environment.

The gray mining area between the green hills, surrounded by large and small tailings ponds.

Viewed from above, the bare mountains near the mine are a dull grey color, and one or several white areas can always be found, with cyan or red tinges at the edges, abruptly spread out among the mountains like scars.

As the largest local miner, Jiangtong Group has made great efforts in tailings management and mining area restoration, but it is impossible to prevent it.

According to the analysis of Jiagu Laboratory, in the mining process, the acid wastewater produced in the mine contains a large amount of cadmium ions, which either seeps or overflows with rainwater, enters rivers and soils, causing heavy metal pollution.

In addition to wastewater, tailings are diffused into the surrounding environment through dust, waste residue and other forms, and some heavy metal elements will also enter the water body or soil, and then be deposited in the human body through drinking water and food, and the soil and crops around the mining area will also be affected.

The test results showed that in the vicinity of the mining area caused by the accident, several heavy metal elements such as cadmium, lead and zinc in the soil exceeded the standard, and the excess rate of each element was more than 80%, of which cadmium and zinc exceeded the standard rate of 100%.

Qi Zheng originally planned to come over to ask for an explanation, but after learning about the local environment, he changed his mind.

Because, the location of Gaolan County is a bit delicate, Shuangmu County and other Jiagu counties have planting bases, located in its downstream, even if there is no accident this time, Qi Zheng is sure that sooner or later heavy metal pollution will occur in the downstream areas.

In other words, as long as the environment of this mining area is not treated for a day, Jiagu's hundreds of thousands of acres of rice planting bases in neighboring counties and neighboring counties are like a sword of Damocles hanging over their heads.

......

The head of Jiangtong Group in Gaolan County did not want to see Qi Zheng at all.

He is well aware of the heavy metal pollution generated by the mines.

As early as a few years ago, the villagers in the villages around the mining area found that the rice they grow, the taste of cadmium is not obvious to the harm of rice yield, even if the rice is enriched with cadmium, rice farmers are difficult to detect from the change in rice yield, but the high concentration of cadmium will affect the taste quality of rice, that is, people will feel that rice is not as good as the original.

This has never happened before. The villagers couldn't help but go to Jiangtong Group to ask for an explanation. Later, the government intervened.

Since then, Jiangtong Group has begun to subsidize the villagers around the mining area with a seedling fee of 80 yuan per 100 catties of rice.

The villagers had no choice but to convert their rice fields into dry land and grow corn and sweet potatoes to feed pigs and cattle because of the pollution of their rice fields. The non-polluting rice eaten needs to be purchased in other places.

Today, many of the surrounding rice fields have been abandoned near the mine.

However, the villagers are easy to appease, but Jiagu is not easy to dismiss.

Although Jiangtong Group is one of the relatively powerful state-owned enterprises in Jiangyou Province, the Jiagu Group is not an unknown junior; it can even be said that in terms of popularity, Jiagu Group crushes Jiangtong Group.

Therefore, after knowing Qi Zheng's intentions, the person in charge was big, not because he was afraid of the Jiagu Group, but because everyone was strong, and if they were torn up, it would be extremely miserable, and they would have been their own losses.

So when Qi Zheng came to the door, the person in charge lowered his posture very low, and looked like he was negotiable for compensation.

Qi Zheng......

In addition, he also kept complaining: "Mr. Qi, I won't tell you, yes, over the years, people have been saying that this mining area will be closed. I don't say how much the mining area will bring to the country, but why don't they look at how much of the income from mining is a percentage of the total household income in the local area, and how the closure of the mining will change the livelihood of the family?"

"These miners have been working in the mining area for many years, and their skills are relatively simple, and they are older, so even if they want to work, they cannot find suitable jobs. ”

"So the closure of the mine is not for our family, but for thousands of families......

Qi Zheng was noncommittal, and said lightly: "But pollution is always real, and the impact is greater and longer." If you don't take care of it, this is a big bomb that can be detonated at any time!"

The person in charge shouted: "Where do we not deal with it? But heavy metal pollution, it is a world problem, but also a century problem, we have invested a lot of money to deal with it, but the effect is very small......

Qi Zheng smiled and said softly, "What if I say, we Jiagu have a way?"

"Oh...... Oh?" the person in charge was stunned.

......

Song Tongbin, chief of the technical section of Jiangtong Group, looked at Liu Xu of the Jiagu soil remediation team next to him, as if he was looking at a big liar.

He silently complained in his heart, the company was really confused, and he really believed in Jiagu's so-called "phytoremediation" to control heavy metal pollution.

I have tried the physical method of guest land replacement and the chemical method of reagent pollution control before, which can be described as a waste of money and money, but I haven't learned enough lessons?

The leaders above are not sober-minded, and the control of soil heavy metal pollution is actually a porcelain job. It is not only a technical and multidisciplinary problem, but also a system engineering.

Phytoremediation alone is a joke.

It's not that he doesn't know that some plants can accumulate heavy metals in excess, but the effects of these remedial plants vary greatly from region to region, in short, they are good in one place and not necessarily in another. Second, the time for this restoration is calculated in hundreds of years.

Liu Xu of Jiagu Laboratory kept reading beside him: "You are really lucky, just caught up with our newly cultivated 'gold-absorbing' plant varieties, you wait and see, its 'gold-absorbing' efficiency can simply blind your eyes......"

Song Tongbin said "hehe" in his heart, and said secretly: "You blow, you continue to blow!"

......