Great Power Project

Chapter 369 Mainstream Sewage Treatment Process A2O (Ask for a monthly pass!)
"You mean to call the dean? Ask the courtyard to send more people?" Professor Dai asked.

"Not for now, I'm just a little excited!
Some couldn't believe it, this is the student I brought out!

A small move back then, unexpectedly changed the situation today. "

"Hehe, Teacher Lu, Yu Qingyang is also my student!

As teachers, sometimes an inadvertent action or a word will affect the students. This is to be a teacher. "Professor Dai is much more stable than Teacher Lu.

At the wine table before, Yu Qingyang deliberately mentioned this matter, and it was Yu Qingyang who brought it up that Teacher Lu remembered such an event.

The thing is simple, like most college students who are just entering college these days.

Suddenly escaped from the busy homework in high school, there will be a kind of loss.

Many college students were originally good babies who loved to study in high school, but everything changed when they went to college.

Play games online, make friends, smoke, drink and fall in love.

Yu Qingyang was also like this at the beginning, but at that time there were no Internet cafes, and some were game halls.

Of course, what Yu Qingyang is fascinated by is not the game hall, but the online novels that have just become popular.

Compared with traditional martial arts novels, Yu Qingyang is deeply involved in the magical setting of online novels, amazing imagination, and ups and downs in the plot.

Even class is inseparable from online novels.

At that time, reading online novels was not about reading online, but renting physical books from bookstores.

There are many bookstores for renting online novels near the university, and there are almost as few Internet cafes near the university now.

One of the things Yu Qingyang must do every day is to carry his schoolbag to the bookstore to return and rent books.

Every time, I rent a schoolbag in a schoolbag.

Many post-[-]s and post-[-]s are surprised, right?

Renting online novels is actually a round book charter!
In fact, it is not an exaggeration at all. At that time, a book was about 20 words or [-] words.

It can be finished in about one or two hours, and Yu Qingyang can read seven or eight books a day.

Once it was Teacher Lu's class, and Yu Qingyang used to sit in the back and read novels.

Maybe I was too involved and forgot that I was in class. When I saw a certain abuse plot, I couldn't help but slapped the table and howled loudly.

Naturally, the whole class was shocked!
According to normal logic, Yu Qingyang was reading novels in class and making loud noises, basically he was kicked out of class, then blacklisted, waiting for make-up exams.

However, Teacher Lu did not drive Yu Qingyang out of the classroom at that time, but specifically found Yu Qingyang after class.

Chatted with him for a long time, talked about life, about ideals, about when he was in college, and once delayed his studies because of writing poems, and gave Yu Qingyang a collection of poems he wrote himself.

It was that conversation that changed Yu Qingyang's fate. Yu Qingyang was no longer obsessed with online novels. Although he still read them, it was only after finishing his studies as a pastime.

Later, even if Yu Qingyang stopped taking Teacher Lu's class, he would visit him every year and holidays. The fate between him and Teacher Lu was picked up at that time.

Teacher Lu chatted with Professor Dai for a while, and Yu Qingyang came over to invite them to dinner.

"Professor Dai, Teacher Lu, German experts will come over tomorrow, and I will ask the two teachers to help check it out! Let foreigners fool us with outdated technology!" At the wine table, Yu Qingyang talked about sewage treatment technology for the first time.

"Hehe! Yu Qingyang, leave this matter to us! Although we can't help you design an advanced sewage treatment process, we can still distinguish the good from the bad!" Professor Dai and Teacher Lu said to each other. Take a look, and said with a smile.

"Yu Qingyang, I'm afraid you don't know yet? Professor Dai has participated in the design and construction of Gaobeidian Sewage Treatment Plant in Chaoyang District, Yanjing and Liede Sewage Treatment Plant in Yangcheng." Teacher Lu said with a smile.

"I was involved in the design and just followed to learn!" Professor Dai showed a proud smile on his face.

Now that he is going to enter the water treatment industry, Yu Qingyang naturally needs to understand the current situation of this industry. He knows that Yanjing Chaoyang District Gaobeidian Sewage Treatment Plant is currently the largest sewage treatment plant in China.

The daily processing capacity reaches 100 million tons.

Yangcheng Liede Sewage Treatment Plant, as Yu Qingyang also knows, has a designed total treatment capacity of 120 million tons. However, the first phase of construction has just been completed, and the daily treatment capacity put into operation is only 20 tons, which is still not as high as Yanjing Chaoyang District. Beidian Sewage Treatment Plant.

"Professor Dai, you are humble! Given your status in the field of water and environmental studies, you must be there to guide the work!" Yu Qingyang gave him a hand.

Professor Dai was very satisfied with Yu Qingyang's flattery. Although he was self-effacing, he couldn't hide the smile on his face.

And so the topic unfolded.

"The earliest sewage treatment plant in our country is the North District sewage treatment plant in Shanghai, which was built in 1923! The daily sewage treatment capacity is [-] tons.

This processing capacity may not be very impressive at present, but before the founding of the People's Republic of China, this daily processing capacity was definitely ranked among the most advanced in the world. "

"Actually, Shanghai is now the city with the most sewage treatment plants in the country! There are twelve sewage treatment plants in the city, which can meet the secondary discharge standard." Teacher Lu added beside him.

"Yes! A2/O process technology is considered an advanced technology in the world!

It is also the mainstream sewage treatment technology now!
Most domestic sewage treatment plants use this technology.

For example, Yangcheng Datansha Sewage Treatment Plant, Liede Sewage Treatment Plant, and Jinmen's Xiqing District Jizhuangzi Sewage Treatment Plant all use the A2/O process! "

"Professor Dai, from what you said, A2/O technology should be a very advanced technology. Is this technology used in our country?"

"Not all of them. For example, the Gaobeidian Sewage Treatment Plant in Chaoyang District of Yanjing uses the activated sludge method!" Professor Dai finished speaking, and before Yu Qingyang could open his mouth, he began to teach him what is the activated sludge method.

"The activated sludge method was invented by Clark and Gage in England in 1912. It is an aerobic biological treatment method for sewage, which can remove dissolved and colloidal biochemical substances from sewage. Organic matter and suspended solids and other substances that can be adsorbed by activated sludge can also remove part of phosphorus and nitrogen."

Yu Qingyang didn't quite understand the principle of the activated sludge process that Professor Dai said, and he only cared about one issue.

"Professor Dai, what level of discharge standard can the activated sludge process meet?"

"Uh! It can meet the second-level emission standard!" Professor Dai paused before replying resentfully.

It's like a painter is discussing a painting, if the painting is beautiful, how exquisite the painting skills are, what painting skills are used, how cleverly the characters and natural landscapes are integrated, and someone next to him interjects and asks, "Excuse me, what is this?" How much is the painting worth?"

　Three more sent!

　　
　
(End of this chapter)