I collect gold fingers in the heavens

Chapter 145 Processing procedures, composting methods (please subscribe, please recommend)
Rich people's connections extend in all directions, especially a company like Wu Siyuan that employs thousands of people and makes an annual profit of nearly [-] million yuan.

Even Wu Siyuan usually doesn't bother to manage contacts at all.

But when he really needed it, just a few phone calls, friends of friends of friends, could help Wu Siyuan solve this headache that caused him a little bit.

A few days later, the pile of treated garbage in Wu Siyuan's workshop was transported away and transported to a medium-sized garbage treatment plant in the suburbs.

Because of the greeting in advance, after checking the situation of Wu Siyuan's garbage, the person in charge of the garbage disposal plant asked the staff to control the grab bucket to send the several tons of dried garbage to the conveyor. , use various machines to sort first.

The person in charge of the waste treatment plant is a bald, oily-faced, middle-aged man with a beer belly. His name is Li Liangtang. Seeing Wu Siyuan's interest, he offered to introduce him. He said, "Wu Siyuan In short, these household wastes will be subjected to a rough selection first, in order to screen out materials over 200mm, including glass, bricks and the like.”

"Haha, there are all kinds of garbage in the garbage!" Li Liangtang said thoughtfully.

Wu Siyuan also smiled.

Li Liangtang continued to introduce to Wu Siyuan, "After the rough selection, it enters the crusher for crushing, and then enters the manual sorting belt. You know, the machine is always imperfect, so it is necessary to manually continue to screen out coarse materials."

"After manual screening, it will enter the combined screening device. This process is mainly for sorting organic matter, including food waste. This part of organic matter can be made into organic fertilizer for sale after post-fermentation treatment. .”

"However, such organic substances often exceed the standard of heavy metals, so further treatment is required, and the cost is very high." Li Liangtang said with a helpless shrug. This is a common problem encountered in domestic waste disposal, and there has been no good and effective solution.

"Mr. Li, I want to take away the organic soil from the batch of garbage I brought over. The company's laboratory needs to conduct research." Wu Siyuan said to Li Liangtang after hearing this.

"Of course!" Li Liangtang said boldly, after a pause, he asked again, "Boss Wu's company also plans to enter the garbage disposal industry."

"It's just that the laboratory is doing some experiments!" Wu Siyuan didn't answer directly.

"Hahaha, Mr. Wu, the water in this business is deep! They are all fed by the government. Without government subsidies, the daylilies are cold!" Li Liangtang said with some emotion.

"After all, it is a public service cause!" Wu Siyuan replied.

"Hey!" Li Liangtang sighed, and suddenly said, "By the way, Mr. Wu, there are no plastic products in the garbage you sent over?"

"Oh, the laboratory here has sorted them first, and the cost is very high." Wu Siyuan said calmly.

"Hey, yes!" Li Liangtang sighed again when he heard the words, "The plastic problem is also a pain point in this industry. If nothing else, let's just talk about organic soil. It is always difficult to sort out the plastic completely. It will affect the later fermentation and the quality of organic fertilizer.”

"It's a big problem!" Wu Siyuan also echoed, he wouldn't be so stupid as to say [Hydrocarbon Degrading Bacteria Mixture].

"I can only hope for the development of technology in the future." Li Liangtang said.

Then he took Wu Siyuan to visit the air separation and magnetic separation process of the waste treatment plant.

Through these machines, all kinds of domestic waste can be effectively sorted out, greatly reducing manpower...

A day later, Wu Siyuan declined the invitation to eat. After paying the corresponding garbage disposal fee, he asked someone to drive a truck to Guangxi Province with 800 kilograms of organic soil that had been screened.

One ton of domestic waste can sort out about 200 kg of organic soil, and 4 tons of domestic waste is 800 kg of organic soil.

These organic soils are taken back for composting and fermentation, which is organic fertilizer.

Because compost fermentation has special site requirements, the factory Wu Siyuan rented was not suitable for this, so Wu Siyuan had to find another place.

It just so happens that the pig farm under his company has a supporting [Organic Fertilizer Factory].

These organic soils are just fine to pull over.

Moreover, [Organic Fertilizer Factory] has a laboratory that can help Wu Siyuan detect the heavy metals in it.

Wu Siyuan is the big boss. After the order was given, the staff under him worked very efficiently, and quickly vacated the corresponding warehouse to pull the 800 tons of organic soil to compost and ferment.

There are two ways of compost fermentation, one is aerobic composting and the other is anaerobic composting.

Aerobic composting, also known as high-temperature composting, is carried out under aerobic conditions with the help of aerobic microorganisms.

During the composting process, the dissolved organic matter in the organic waste permeates the cell wall and cell membrane of the microorganisms and is absorbed by the microorganisms. The solid and colloidal organic matter first attaches to the outside of the microorganisms, and the extracellular enzymes secreted by the microorganisms are decomposed into dissolved substances. then penetrate into the cells.

Through its own life activities—oxidation, reduction and synthesis, organisms oxidize part of the organic matter into simple inorganic matter, release the energy required for life activities, and convert part of the organic matter into the nutrients necessary for the organism to synthesize new substances. The cellular matter of the microbes gradually grows and reproduces to produce more organisms.

Generally, the composting temperature change is used as an evaluation index of the composting process.

A complete composting process consists of four composting stages, namely low temperature stage, medium temperature stage, high temperature stage and cooling stage.

Each stage hosts different bacteria, actinomycetes, fungi and protozoa, which use the organic matter in the waste as a food and energy source until a stable humus material is formed.

Wu Siyuan's [Organic Fertilizer Factory] mainly uses this kind of aerobic compost to produce stable humus substances, and then adds it into the liquid after Wu Siyuan added [Spiritual Spring Water], which becomes the factory's flagship product [ Lingquan brand organic liquid fertilizer]!
However, this [Organic Fertilizer Factory] used pig manure, pig urine, chicken manure and duck manure for high-temperature composting before, so the steps are relatively simple.

If the organic substances screened out from domestic waste are composted, the steps will be more cumbersome. After high-temperature composting, [post-processing] must be carried out.

Because the mature organic materials after fermentation often contain a lot of impurities such as stones and incompletely decomposed materials, the particle size is still large.In order to improve the quality of compost products, [post-processing] process and [heavy metal] treatment must be set up.

[Post-processing] Generally, it is to screen, crush, granulate, and pack again.

These are what Li Liangtang told Wu Siyuan.

(End of this chapter)