What is a fuzzy question, that is, the questioner expounds a question very vaguely, this question has no beginning and no end, a sentence pops up out of thin air, there is no project background, water quality and quantity, process type, equipment and other information, only a question that came out of nowhere, vague background information, determines the ambiguity of the problem. The questioner himself has been troubled by this question for a long time, and the background information behind it may be very familiar, but he has not made a serious summary, starting from himself, thinking that everyone should know the background, so he simply threw out the question, and I hope that everyone will look at this issue from the same perspective as him. Of course, this is simply impossible, and there is no exact same process occasion for everyone to understand the root cause of the same problem, so there is no way to know why this problem occurs.

In fact, the questioner's desperate desire to get the answer to his needs can be understood, and most of those who can ask questions online are forced by the leaders of the scene, and the process conditions on the site are at a loss, and they will be eager to get answers under great pressure, so these vague questions are understandable, but from a technical point of view, especially from the technical improvement of the overall practitioners, there should be no such ambiguous problems.

For the on-site technicians of the sewage plant, there are antecedents, environmental factors, emergencies, equipment factors, etc., which are all influencing factors that change the current situation of process operation, and the collection and sorting of these factors is the ability that must be possessed as a field technician. Sewage treatment is a systematic process, this process is not a simple single-threaded mode, and the intermediate process has multiple factors involved in the change. The conventional treatment process of the sewage plant is basically the activated sludge method, and the basic principle is no problem, but affected by the site conditions, the problems of each sewage plant will be different, especially the solution idea will also be different, and the way to solve it is even more different, because the solution must be solved from the root, if it is only a general solution, it will definitely not be very targeted.

The problem of the sewage plant is more individualized, without the detailed analysis in the early stage, in fact, there is no way to get the most accurate solution, which also puts forward requirements for on-site technicians to carefully summarize the site and find the source of the on-site problem, in order to ask better and more accurate questions. Of course, some on-site personnel also said, I just want an answer, everyone can tell me based on experience, isn't it enough to tell an accurate value, why do you have to repeatedly summarize the parameters of the scene. This brings us to the second content, the question of accurate answers.

Many questioners are most eager to get an accurate data, which will give the questioner a clear guiding role, so that the questioner has an accurate benchmark and becomes a reference data for later process adjustment. There are also some questioners who want to get the parameters between peers, such as what is the dissolved oxygen of his plant, what is the sludge concentration of his plant, what are the operating parameters of his plant, and the relevant administrative leaders of some sewage plants are more concerned about the drug consumption of A, B and C plants, why is the drug consumption in their own plants high? There are also some technicians who are unsure about the new process and hope to get the operating parameters of their peers who have used it, and then guide the process adjustment in their own factory.

Each sewage plant has its own different environmental conditions, the operation of the sewage plant is constrained by these different environmental conditions, the overall process parameters will gradually adapt to these different environmental conditions under human control, and the operators are to explore more adaptable to the unique process parameters of these plants, so that the activated sludge is more adapted to the actual environmental conditions of each sewage plant, and play a greater ability to treat pollutants. These operating parameters come from theoretical calculations accumulated according to the environmental conditions of the site and long-term operating data, these process parameters are unique, and it is impossible to have the same parameters under different conditions.

The sewage plant is not a standardized process module, and the environmental conditions of each plant are absolutely impossible to be completely consistent, from the facilities and equipment in the plant, the operation conditions of the process, the quality and quantity of influent water, etc. Without the same operating environment, the adapted operating parameters are definitely impossible to be consistent, so how can it be used as a reference parameter for other factories?

Therefore, it is not advisable to obtain accurate data from other factories as the answer required by the questioner, and there is really no need to constrain the process operation in the factory through other people's parameters, which will only become more and more difficult to control. The ability that really needs on-site technicians is to know how to get reasonable and appropriate operating parameters, rather than copying.

Although data management will be the direction of the operation of sewage plants in the future, these data are unique, reasonable data must be unique to each sewage plant, as the technical management personnel of the sewage plant, what needs to be done is not simply to take it, but should have the ability to build their own data system in the plant.

The questioner should be respected, and the pioneer should also help the questioner get more and more practical opinions. However, as a field technician, the questioner should think more about how to truly improve his ability to collect and sort out on-site technical problems. For the answer to the question, it should not be some precise numbers, but the method, the situation of the question, the problem asked, how to solve it, this is the technician should go to get knowledge from others, not simple numbers. In fact, this also puts forward requirements for on-site technicians, can not have lazy thinking, copying, taking doctrine is not possible, technicians should calm down, carefully study and study professional theories, carefully survey the site, summarize the on-site problems, so as to manage the process in their own factory.