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The reason for the high TN in the water
1 answer
2024-12-29 10:52
The main reasons for the high TN in the effluents were as follows: low nitrogen removal efficiency in the anoxic-tank, problems of internal recycling, low PL, destruction of the anoxic-environment in the dinitration tank, sludge load and sludge age, ratio of internal and external recycling, dinitration rate, insufficient dissolved oxygen, insufficient carbon source, etc.
The reason for the high TN in the water
1 answer
2024-12-22 16:58
The reason for the high TN of the discharged water may be caused by many factors. The following possible reasons could be summarized:
1. Low nitrogen removal efficiency of the anoxic-tank: In the practical application cases of urban sewage treatment plants, it was found that the reason for the excessive TN in the outlet water was that the nitrogen removal efficiency of the anoxic-tank was low, resulting in high nitrogen in the outlet water. The solution was to shut down the aerating system of the aerating grit chamber and add some control measures such as adding Na-acetate into the anaerobic tank to improve the stable discharge of TN in the outlet water.
2. [Lacking carbon source: In the process of nitrogen and nitrogen removal, the theoretical ratio of TN: TN required for TN removal is 2.86, but in actual operation, the ratio of TN is generally controlled at 4~6.] The lack of carbon source was one of the main reasons why the TN of the sewage treatment plant did not meet the standard. The solution was to add a carbon source according to the ratio of CH to N of 4 to 6.
3. Internal Reflux Problem: The excessive amount of nitrogen and nitrogen caused by internal return can also be attributed to the impact of organic matter. Because there is no return of nitration liquid, there is only a small amount of nitrate-nitrogen carried by external return in Pool A. Overall, it is an biochemical environment. The carbon source will only be decomposed and acidofied and will not be completely decomposed into carbon dioxide. Therefore, a large amount of organic matter entered the aerating tank, resulting in an increase in the concentration of nitrogen and nitrogen. The solution was to stop the water from entering and start the explosion.
4. Low pH. Low pH. The solution was to start adding base to maintain the pH when the pH continued to drop, and then find the reason through analysis.
It should be noted that the above reasons are only speculated based on the search results provided. The specific situation needs to be analyzed and resolved according to the actual situation.
Is Palmerstown TN a fictional town?
2 answers
2024-10-03 15:21
Yes, Palmerstown TN is a fictional town. It doesn't exist in reality.
Seeking Modern High Literature (TN)
1 answer
2024-09-14 14:17
Modern Gaoganwen NPC referred to a story about the protagonist's struggle, growth, love, and success in politics, business, and other fields in a modern city. NPC literature usually had a high-level atmosphere, focusing on plot ups and downs, character creation, and plot development. At the same time, it also covered political tactics, emotions, betrayal, growth, and many other aspects. The main target group of the NPC novel was people who liked modern urban topics, and it was also popular among readers.
What are the scariest east tn ghost stories?
1 answer
2024-12-11 00:34
The scariest east tn ghost story might be the one about the schoolhouse. They say that a young girl died in the school during a fire. Now, at night, you can see her shadow running through the empty hallways, and sometimes you can even hear her screams as if she's still trying to escape the fire.
What are the scariest Clarksville TN ghost stories?
2 answers
2024-12-05 15:28
The scariest might be the Bell Witch story. Just the idea of a witch - like entity tormenting a family for so long is terrifying. It wasn't just small pranks; it was full - on harassment, like throwing objects at people and whispering threats in their ears.
The Story of Old Trinity Church in Mason, TN
2 answers
2024-12-04 04:50
The Old Trinity Church in Mason, TN might have a story that dates back many years. It could have been built by early settlers in the area. Maybe it was a place for religious gatherings and also social meetings. It might have seen generations of families coming together for worship, baptisms, weddings, and funerals. Over time, it could have faced challenges like natural disasters or changes in the local population, but still stands as an important part of Mason's heritage.
Are there any famous rugby tn ghost stories?
1 answer
2024-12-01 12:22
I'm not aware of any famous rugby tn ghost stories. It could be that they are more of a local legend that hasn't gained widespread fame yet.
What are the scariest Franklin TN ghost stories?
1 answer
2024-11-29 04:51
The scariest might be the ones related to the Civil War sites. At Carnton Plantation, the idea of seeing the ghosts of soldiers in pain is terrifying. The thought of walking through the rooms where they suffered and died gives people chills. Another really scary one is the haunted mansion in downtown Franklin. The unexplained footsteps and shadowy figures can make your heart race, especially when you're alone at night in that old building.
What is the Chattanooga TN environmental success story?
2 answers
2024-11-06 15:33
One aspect of Chattanooga TN's environmental success could be its efforts in air quality improvement. They might have reduced industrial emissions through strict regulations. This led to cleaner air for the residents, with fewer pollutants like sulfur dioxide and particulate matter.
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