Problems with circulating water treatment
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During the circulating water treatment process, a large amount of red sludge appeared at the beginning. After increasing the level of sterilization, the red sludge disappeared, but a large amount of black deposits formed on the test pieces placed in the tank; these deposits also caused corrosion to the test pieces. Could someone please explain what is going on here? Thank you!
Are they dead bacteria? I’ve encountered this phenomenon before with scaling; otherwise, you can soak the sample in acid to see.
The red sludge is likely corrosion caused by microorganisms. Since the microorganisms die as a result of sterilization, a large amount of these dead microorganisms turn into black substances; by adding more of such substances, it is possible to remove all the microorganisms. This corrosion is caused by microorganisms; it had already occurred before the sterilization treatment and still remains after it.
The amount of the stripping agent should be increased. The sterilization effect was achieved, but the peeling effect did not work!
Increasing the wastewater discharge volume after applying the chemical can reduce the residue of black corpses
I would like to ask: is the turbidity high now after sterilization? I think it’s due to the decay products of bacteria or some source of contamination; I suggest applying more disinfectant and increasing the wastewater discharge
It must be sulfur-iron bacteria; microbial debris also attaches to them!
Why must it be the remains of bacteria? Could it not be that the different colors arise from varying degrees of iron oxidation? Ferric tetraoxide, ferric oxide, and iron oxide all exhibit different colors such as red, black, and dark red. Hehe, have you ever seen bacteria form such massive piles of dead bodies?
The mode of corrosion is under-scale corrosion, which is primarily caused by oxygen concentration difference potential corrosion resulting from the deposition of sludge deposits on the metal surface; it is necessary to remove this sludge.
This post was last edited by shingjiang on 2017-3-10 at 16:03. It’s not just bacteria and algae that can cause such conditions. During the shutdown of the circulating water system, deposits such as rust formed on the system’s pipe walls are also red. Certain bactericides can also exert a certain coagulation and sedimentation effect, such as 1227. It is recommended that you wipe the colored deposits that form on the Hanging piece with alcohol; if they can be removed, then it is caused by the deposition of organic debris ； If it cannot be removed, it can be removed by cleaning it with the acid solution used for treating the test strips. From this, you can identify the problems with the system.