The traditional fermentation technology must use manure as raw materials, there are certain limitations in the use of materials, after all, it is a rural area, the source of manure is very narrow, in addition to the excrement of local villagers, there is only the excrement of livestock, the excrement of livestock is difficult to collect, once the excrement of villagers is not enough, there is no raw material of manure, it is easy to cause insufficient gas supply, and biogas can not be obtained for a long time.

At the same time, the use of manure fermentation, very easy to "crust", the composition of feces is complex, if there are more floating objects, it is easy to form an impermeable shell in the uppermost layer, due to the lack of oxygen to enter, the fermentation is slowed down, and the biogas produced at the same time can not be released, which requires frequent stirring of the fermentation tank, but the management and service of the fermentation tank in the countryside are very inadequate, and it is difficult to have a place to improve this process, which is an important reason for the slow development of biogas in rural areas.

Biogas, on the other hand, is not only limited by local conditions, but is also very affected by ambient temperature.

Generally speaking, biogas is buried in the ground, showing a closed state, and the influence of temperature is very large.

In summer, the temperature is high, the fermentation reaction is violent, the gas production is large, too much, the village name can not be used, therefore, it must be exhausted in time, but the exhaust is slightly inappropriate, it is easy to rise the pool, that is, the air pressure is too large, the closed pool will be damaged, resulting in air leakage.

In winter, because the temperature is too low and the activity of the fermentation group is insufficient, enough biogas can not be produced, and the biogas tool cannot be used normally, especially in cold places, resulting in often only half a year, and the rest of the time is inconvenient.

In addition, conventional biogas digesters must be fed in fresh feed, discharged and stirred every day before they can be used, and the contents must be emptied every year. Cleans up accumulated impurities. It is very inconvenient to manage. Meantime. Most of the biogas digesters are made of bricks, but because the biogas contains hydrogen sulfide, it corrodes the cement greatly, and the gas leakage occurs after a short period of use.

Once there is air leakage, corrosion and other problems, it needs to be repaired, and all the raw materials need to be cleaned up before they can be re-plastered and sealed.

Someone said that for what not to use the plexiglass fiber reinforced plastic pool, so that the airtightness is better. Corrosion-resistant and durable, but plexiglass is expensive and a big expense for farmers. Moreover, the construction of traditional biogas digesters is a labor-intensive and time-consuming project, such as 6-10 cubic meters of ponds, which is a more general-purpose model in Ruonai, and the amount of earthwork excavation is about 8-13 cubic meters, which takes a week to complete. It takes at least a week of maintenance to be loaded, and it takes a month before and after to be used normally.

Labor costs. The cost of time and capital have been spent, but once the user relocates, the pool cannot be taken away, only the choice is to abandon, with the current state of rural population migration, there are definitely not a few abandoned pools.

The experts blindly advocate that the economy can be recycled, and the fermented raw materials are used to fertilize the soil, which is the general theory of the castle in the air, to know that the traditional biogas digester is a semi-continuous fermentation method, that is, the next day to pour new raw materials into the pool, what phenomenon will this produce?

What will happen to the fermentation of the previous batch of raw materials, due to the sudden mixing of new raw materials and the mixing of new air, making the fermentation of raw materials incomplete and incomplete? As a result, the fermentation raw materials after the most are mixed with raw and clinker, that is, the incomplete fermentation and the complete fermentation are mixed together, and the raw meal, that is, the raw materials that are not completely fermented, contain various pathogens, it is necessary to know that the main components of these raw materials are human and livestock feces, which contain a lot of pathogens.

It is strange to take this fertilizer containing pathogens and grow good crops, and it is good if it does not pollute the land.

This greatly affects the comprehensive utilization of biogas slurry and biogas residue, which is completely different from the theoretical virtuous cycle.

Therefore, the existing rural biogas has the saying of "one year is good, two years is leaky, and three years is abandoned", which means that the disadvantages of the biogas digester are too great, and many transformed villages, after several years of complaints, have returned to the original ranks of burning firewood, and the biogas digester is discarded by them and completely abandoned.

In the early stage, the government's subsidies and farmers' own inputs were all lost, and even the capital was not recovered, which is the practice of rural biogas construction that is being advocated by the whole country.

Of course, it is not excluded that there are places with better management and services, and those places have stable temperatures throughout the year, and biogas construction is very efficient, but that is only a small number of places, and most places are not as promising as theoretically.

As far as the area of Hualuo County and the actual situation of Niuqian Village are concerned, the results of biogas construction can almost be predicted, and the money invested will be abandoned within three years, and eventually it will be reduced to a political achievement project, which will cost the people and money.

was asked by Liu Yu directly, Zhou Xuan couldn't help but lose face, Liu Yu asked like this, he was already very dissatisfied, Zhou Xuan had to answer hard: "It's because my work is not meticulous and serious enough, and I must rectify it next." ”

Liu Yu closed the plan, threw it back, and said in a condensed voice: "The construction of the new countryside, I attach great importance to it, you should know better than others, explain the things, do it seriously, and when the time comes, you are indispensable, understand?" ”

Zhou Xuan's face was hot, and she was secretly annoyed, she really didn't pay much attention to this plan, she asked the people below to refer to the previous Xinnong construction, but she never thought that she was severely criticized by Liu Yu. However, Zhou Xuan heard the most reluctant last sentence, the most reluctant, the county's new agricultural promotion, will be her to take the lead, which means that there will be a lot of money flowing through her at that time, it is easy to do things with money, and doing good things is a political achievement, as for making money from it, this has to be seen, to see whether Liu Yu will turn a blind eye or put one eye on it, the important thing is to make political achievements!

Zhou Xuan left, Liu Yucai sighed weakly: "Hey, the leader is not easy to be, too much management, the people below complain that they are tied up and can't carry out the work, but they don't pay attention to it, and the people below don't do their best, I personally took Zhou Xuan to Niuqian Village to investigate, can she understand my importance to the construction of the new countryside?" Even so, in the end, such an unsatisfactory plan was lost. ”

What Liu Yu can do is to pay close attention, since you don't want to do things, don't blame me for meddling, when the time comes, don't complain!

In the evening, Tao Linjia came to Liu Yu's residence to sit for a while, and also brought Yang Qiuyun to the situation of the agricultural foreign trade company.

Yang Qiuyun beamed with joy: "County magistrate, Tyson feedback on the sales situation over there, I got a sales report through the channel, from the feedback and report comprehensively, Hualuo's chestnuts are selling very well over there, and the 500 tons of chestnuts that go are all digested, and, compared with Tyson's chestnuts imported from other channels, our Hualuo's chestnuts are sold at a higher price and sell faster, Tyson is very satisfied, and will send a professional negotiation team in the near future to sign the chestnut procurement contract for the next year." ”

"Intuitively, Tyson's next order must be very large, because not only our Hualuo chestnut sales are good, high profits, and, from the report, this year's Tyson chestnut wholesale volume increased by 10% last year, to know that in the past three years, the other party's annual sales growth rate is below 5%, I speculate that it is very likely that our Hualuo chestnut has a good response in the channel business, and the channel has increased the purchase volume of Tyson."

"Therefore, if nothing else, Tyson's order next year will be quite large, its 20,000 tons of quota, even if it is divided into 5,000 tons, is completely enough to meet the county's output, and even, if Tyson's order exceeds 5,000 tons, our agricultural foreign trade will need to be purchased from other counties, the difference between the price of the harvest and the sale, our agricultural foreign trade can also make a profit."

It sounds good, but this is normal, China's chestnuts are stronger than France and Portugal in terms of import price and taste, Tyson unless he can't get along with the money, otherwise in the next batch of orders, only to increase the purchase volume, and reduce the amount of European chestnuts, it seems that Tyson has also tasted the sweetness of the Chinese market.

Of course, Liu Yu did not forget to praise Yang Qiuyun, she was able to get a sales report of the company from Tyson, which is enough to show that she is outstanding. The sales report is not a small trash fish that Tyson can get at will, especially foreign trade, which is more important, which is related to the next business negotiation competition.

It is conceivable that Hua Luo has mastered the sales of Tyson chestnuts, of course, there is more room for bargaining, and he can accurately touch Tyson's bottom line, and not be confused, and be severely depressed by Tyson, this report is very important!

Who did Yang Qiuyun do with Tyson? can get this report, and Yang Qiuyun has been in contact with it, and there is a little bit of identity...... Well? Could it be the proud woman of Shi Lisa? Now that I think about it, it's just her...... Cut, how arrogant do you think, under the offensive of money relations, aren't you honestly a traitor and obediently sell our business intelligence?

"Mr. Yang has done a good job, I have worked hard for you during this time, make persistent efforts, we must broaden our horizons, we can't just deal with Tyson, we can't just stare at chestnut one product, the county's agricultural products with export advantages must go abroad!" This is to remind Yang Qiuyun not to turn the agricultural foreign trade company into a chestnut foreign trade company, but to develop in many aspects, that is, the point mentioned by Liu Yu, all eggs cannot be put in one basket.

The biggest risk in international trade is undoubtedly the political risk, which is completely different from domestic trade. In domestic trade, there is basically no need to worry about the impact of the policy, although in the early 20 years, the protection policy for local products in various places is very chaotic, but now, there is basically no similar barrier, even if there is, it is very small, so that there will be no Fengshan products, not allowed to be sold in the first mountain, this phenomenon is basically gone.

But the international trade is different, the policy of the other country, will not greet China, and it is impossible to take care of Chinese businessmen, and even, on the contrary, there are more policies for Chinese goods, and the common banner of various products entry standards, the actual policy of boycotting Chinese products, is too much, and once it encounters a similar boycott, it means that a large number of products are unsalable, and the products are unsalable, which is a devastating blow to agricultural products with a short shelf life.

Therefore, it is necessary to prepare several more roads, and if one is blocked, immediately go to the other road to avoid crashing headlong and dying on the dead road. (To be continued......)