Zhan Guyue said: "Why are there problems with the sewage treatment system?"
"We went to check. Sometimes it was normal. But sometimes, the direction of the water flow was reversed."
"There are two waterways, A and B, upstream. The wastewater from waterway A is treated and enters the river. There is nothing wrong with it originally. But it flows backwards into waterway B and then into the river. This leads to serious pollution."
Dong Chu said, "Have you found out the reason?"
Liu Mozhi said: "It may be caused by changes in the magnetic field of some nearby force fields."
Dong Chu asked: "Is it because of the tide?"
"No. The tidal phenomenon will not cause the river water to flow backward. Tide refers to the rising and falling tide process along the ocean and rivers. It is caused by the gravity of the moon and the sun. The tidal phenomenon only causes fluctuations in the water surface, and there is no real reverse flow of the water surface. "
Dong Chu said: "Is the problem solved now?"
"We have renovated the sewage treatment system and treated it completely before discharging it. The discharged water is up to standard."
Liu Mozhi said: "Has anything been planted in this lake?"
"Mainly aquatic persimmons. They said the pollutants from the electronics factory affected the planting industry, and they filed a lawsuit."
Liu Mozhi said: "Let's go find a Persimmon grower."
They follow the location given on the map to reach their destination.
"Hello, I am Lu Shi, a persimmon grower."
Zhan Guyue and others said: "Hello."
"Are you attending Mr. Jiang's seminar?"
"Yes."
"What's matter?"
"Do you know Mr. Jiang?"
"Yes. But I don't know much about math."
Zhan Guyue said: "I see there are various economic and computer books in your bookcase."
Lu Shi said: "Yes. I read some about economics."
Zhan Guyue said: "Have you contacted Mr. Jiang and Mr. Tang recently?"
Lu Shi said: "No."
Zhan Guyue said: "Are you familiar with them?"
Lu Shi said: "We know him. Mr. Tang's hometown is here and he is somewhat famous."
Zhan Guyue said: "We just came from the electronic market. We passed by the lake planting area next to it."
Water green persimmon, as a new type of delicious fruit, is praised by tourists in Shuicheng for its excellent taste and rich nutrition. As a persimmon grower, our history can be traced back to more than 20 years ago. The villagers at that time respected it very much. They explored and tried, and finally discovered the method of growing persimmons, as well as the delicious taste and nutritional value of this fruit.
Although there was not much market at first, the team of Persimmon growers gradually established their own brand and sales continued to rise. At the same time, poached persimmon growers are constantly working hard to improve poached persimmon planting techniques and provide tourists with better quality poached persimmons.
After more than 20 years of hard work and development, Persimmon growers have repeatedly achieved success in their operations. Their brand awareness is also rising, and the nutritional value and taste of Persimmons are constantly recognized by consumers. For them, this is a hard and valuable journey.
Lu Shi said: "But in the past year or two, the water quality in the lake planting area has been seriously polluted, which has affected the production of water green persimmons."
On the one hand, the lake water needs to be purified, and on the other hand, the market strategy needs to be adjusted.
In terms of purifying lake water, first of all, the pollutants must be determined. Analyze the type and liquid content of organic solvents. Secondly, pollutant removal technologies are adopted, such as activated carbon adsorption, biological treatment, molecular aging, etc. Finally, sewage source treatment, sewage discharge control, etc. are carried out to control the entry of pollutants into the lake, thereby protecting the lake environment.
In terms of adjusting market strategies, first of all, growers should make a correct assessment of the reduction in fruit production, make reasonable predictions about the proportion of production reduction, as well as market demand and price changes after the production reduction, and adjust the production structure in response to market conditions. Secondly, we should try our best to improve production types and expand market share to ease the pressure of production reduction. At the same time, investment in agricultural technology must be strengthened to improve fruit quality and increase the economic benefits of fruit planting. Finally, fruit growers should extend their marketing channels outwards, add more sales channels, and add more marketing channels to stabilize sales and provide more possibilities for increasing market sales share.
"It's not easy to deal with this troublesome situation." Zhan Guyue said to the others: "Let's take a look upstream along the lake."
Upward is a big river. Looking downstream from the big river, there are two small rivers. A stone river enters the lake, and a meandering river passes through the electronics factory, reaches the purification device, and then flows downstream.
Originally, the Quhe River and the Shihe River were well water and did not interfere with each other. But the water in the Quhe River actually flows upstream.
They thought about the circumstances under which this phenomenon would occur. Backflow occurs when magma from a volcanic eruption rushes into a river, causing the water to flow back in the opposite direction as it is pushed up by the pressure of the hot liquid. In addition, when seawater sprays into the offshore area, the impact of the waves causes the river water to flow upward.
Dong Chu asked, "Are there any volcanoes or high-temperature areas near here?"
Generally speaking, there are no high-temperature areas in the ground near rivers, and the underground temperatures near rivers are generally relatively low. However, under special circumstances, such as underground hot springs and other special circumstances, high temperature areas may exist.
The characteristics of the flow of water between high and low temperatures are that the faster the heat and mass transfer speed, the greater the temperature difference, the faster the flow rate of the water flow, and when the temperature difference decreases, the flow rate of the water flow will also decrease.
Dong Chu put on his digital glasses and used them to look around at rivers, mountain peaks, and woods. There was no point where the temperature was too high.
Zhan Guyue said: "What's going on?"
Dong Chu asked, "Is there something that can control the flow of water?"
Liu Mozhi said: "Is it the kind of stone that controls the distribution of electrons, the distribution of heat, and the light path?"
Dong Chu said: "We have now asked growers and electronics manufacturers, or we can ask some people in the town."
