windy city rainy season

No Food!

No Drink! (Translation: No food or drink allowed.)

Chen Li wrote two big slogans and pasted them on the door of the refrigerator in the laboratory, asking Tao Yu to remove all the beer inside and brush all the bottles with acetone solution three times.

"No way, there's no dangerous stuff in here..." Tao Yu protested softly as he brushed the bottle, thinking that he's a fucking professor again now!

"Have you checked the safety data of each reagent?" Chen Li looked at the bottles and jars in the refrigerator one by one, closed the door and said, "After Thanksgiving, there will be a laboratory safety lecture. Make a list of all reagents, including name, quantity, and storage location, and then download and print out their MSDS from the manufacturer's website."

"Isn't it, big brother?!" Tao Yu wailed, "I have four exams after Thanksgiving, why don't you wait for the holidays?"

"It's not for you to do it alone." Chen Li opened a bottle of clean beer, leaning on the laboratory table and said, "It won't take you half a day, take this opportunity to understand their characteristics, harm to the human body, whether they are flammable or not." , Is there any radiation, and how to dispose of the exhausted waste liquid, all of which can be found on the MSDS.”

Tao Yu didn't answer, wiped off the last bottle of wine, and stacked the bottles on the window sill as if obsessive-compulsive.

"Is there any resentment?"

"Don't dare."

Chen Li smiled and said: "We must wait for an accident to take the safety of the laboratory seriously? Last month in Shanghai, a student smashed a mercury thermometer, which caused mercury poisoning due to improper handling. This kind of accident happened in the chemical industry before. More, there are female students who do not pay attention to self-protection when making polymer materials, and later give birth to children with congenital disabilities and intellectual disabilities. You think this laboratory has no dangerous goods, I am very worried about your bottle of hydrogen sulfide leaking, and the way to die But not very nice."

Tao Yu almost spit out his wine, and said helplessly, "Can you lose any more? I'll end up being stinky to death?!"

Chen Li smiled and pulled up a chair and sat down. The two of them didn't seem to know how to start the conversation. They drank silently, and no one spoke for a while.

"Andrew came to me two days ago." Chen Liqing cleared his throat and said, "We discussed your experiment, and I feel that what you are doing now is a bit off topic."

"How?" Tao Yu leaned against the window, pretending to listen.

"Although you also do sludge treatment, your focus is different from that of Gruca's group. Whether the treated sludge meets the application standards is not your purpose, but to reduce the pollutants discharged into the air. From your experimental results , Those pollutants have not been removed, but the volatilization rate has been suppressed, and they will all be released in the end. I told Andrew some of my thoughts, and he hoped that I could give you guidance in terms of experiments, after all, this part is not his specialty .”

"You mean to change the experimental plan? This project will end in half a year. Is it too late to change it now?" After thinking about it, Tao Yu added, "And I think the suppression of volatilization speed is also in line with the requirements of the sewage plant. , what they care about is the working environment in the factory. Delaying the discharge can reduce the total amount of pollutants in the factory. As for the discharge of sludge after it is sent to the landfill, it is not within the scope of their concern. And I have done research , the dump has a gas collection system where the polluted gases are burned before being released into the atmosphere, and the pollutants are eliminated in the process.”

Chen Li disagrees: "The pollutants have not been eliminated, but have only been transformed. The ammonium sulfate compounds in the sludge will be converted into their oxides after combustion, which will aggravate the impact of acid rain."

"Theoretically, they will all be oxidized in the end. The difference is only that they are burned and oxidized in the garbage dump, or they are naturally oxidized in the atmosphere. I did not increase the total amount of sulfur ammonia in the sludge during the whole process, so it did not cause additional damage to the environment. Negative impact."

Chen Li thought for a while and said: "It is reasonable for you to say that, but it is still a temporary solution, not the root cause. This result can be regarded as the end of this project, but don't forget that you still have a doctoral thesis. If you do not achieve any emission reduction effect, then Where is the key point of this paper?"

Tao Yu was stunned by this question. He himself was also thinking about where the arguments for his graduation thesis were. The more experiments he did, the more he felt like he had reached a dead end, but he never had the courage to change the plan, and he kept No one can give him more valuable advice—Old Andrew is an expert in concepts and statistics, but not in processing techniques. Gruca is the one who does more experiments in the department, but he doesn't know much about air.After much deliberation, Chen Li seemed to be the most suitable instructor, so it was no wonder that old Andrew would go to him to discuss it.

Putting aside other thoughts, Tao Yu asked earnestly, "Do you have any suggestions for the experiment?"

"Remember the processing technology you helped me research when I was in Shanghai?" Chen Li said, "I haven't mentioned that project to Mr. Fang. When Andrew talked about your experiment, I suddenly thought that these two subjects could be combined. , Their purpose is to remove the ammonium sulfate compounds that will cause odor, and the application to sludge should be more efficient than spraying directly on the air, and sludge does not flow around like air, so the contact time is easier to control."

"You said that this technology requires the addition of biological enzymes..." Tao Yu hesitated, "I don't know anything about it."

Chen Li said with a half-smile: "Student, you are really brave to say this to your microbiology teacher!"

The meaning revealed in the other party's words, Tao Yu has no doubt that Chen Li will provide theoretical and technical support for his next experimental plan, but in his heart it is always difficult to treat the other party as an ordinary teacher and accept his guidance calmly.Chen Li came here for Gruca's project, and guiding himself was an unplanned project, which would take up his extra time.After hesitating for a moment, Tao Yu plucked up the courage to ask, "Brother, why did you help me?"

Chen Li asked rhetorically: "Do you usually ask Andrew like this? I am a teacher, so do I need a special reason to instruct students?"

The other party's attitude of course made Tao Yu full of questions but he couldn't open his mouth. He wanted to explain the relationship between the two frankly and clearly before, but the other party couldn't talk about it, and he seemed to be self-indulgent.

The bell rang again faintly outside the window, and an hour had passed before he knew it.Chen Li asked him not to forget to make a list of chemical reagents, picked up the empty wine bottle he had finished drinking and left. In the end, he neither talked about Yan Zhao nor touched any personal topics.The other party's unclear attitude weighed heavily on Tao Yu's heart, making him unable to relax.

That's it, Tao Yu thought, just treat him as a teacher and a senior brother, and if he really speaks clearly, I'm afraid it will be awkward to discuss issues together in the future.

After drinking the rest of the beer, he tidied up the laboratory and was about to leave when suddenly the door of a small storage room was unlocked. Tao Yu looked at Anne in shock and asked, "Ishegone!" Is he gone?)

"What were you doing there?!" (Translation: What were you doing there?)

"God, I almost speed my pants!" She couldn't wait to run out of the laboratory. (Translation: God, I almost peed my pants!)

Before Tao Yu realized what was going on, another person came out of the storage room, and it turned out to be Chang Ling!Tao Yu stared at him dumbfounded, before stammering for a long time: "You...you've been inside?!"

"Of course, there's only one door here, and we can't come in through the wall." Chang Ling looked at him strangely and asked, "Anne said that the person who was with you just now was a new visiting professor, why did you chat for so long? ?”

Tao Yu finally came back to his senses, and couldn't help being angry and said: "You cheated in our laboratory, and you still have the nerve to ask me what I'm talking about?! We're talking about work, what are you doing?! "

"What else can we do?" Chang Yao said indifferently, "I don't have a girlfriend, so this can't be considered an affair. But you, drink with others behind my brother's back, don't bully me because my Chinese is not good, I heard you call him brother... "

"Go home!" Tao Yu angrily interrupted him.

Chang Yao went to the window and took a bottle of wine, and walked around Tao Yu and said with a smile, "Don't worry, I won't talk nonsense to my brother!"

"I have nothing to worry about, you can say whatever you want!" Tao Yu thought to himself that I hadn't said to make a small report, but this bastard actually made a false accusation!

Seeing Chang Yao leave, Tao Yu went to the storage room to check, but fortunately there was no mess.He stood alone in the laboratory and sulked for a while, grabbed a piece of paper and wrote a big slogan on the door of the storage room:

No Sex!