Treatment of abnormal pH using the SBR process
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We have 6 sets of biochemical treatment tanks here, used to treat wastewater with high ammonia levels and high COD values; it comes from a coal chemical enterprise. Over the past half month, the pH level has remained between 7 and 7.5, while the pH of the incoming wastewater is around 7.2. The treatment process involves 5 hours of aeration, 1 hour of mixing, 1 hour of sedimentation, and 1 hour for discharging the water. All other influencing factors have been ruled out. In the past, there were fluctuations in pH, so alkali was added to adjust it; but now, even after half a month, there is no significant change in pH – it’s extremely stable. No alkali has been added at all, which makes us worried about whether there might be large fluctuations in the future. We hope that experts can come and analyze the situation; I can provide the necessary data.
It’s a good thing that there are no abnormalities in the system, right? Whether there will be significant fluctuations depends on the actual operating parameters and water quality, etc. If it’s about prediction, there are too many possibilities
I don’t have Bod here; I only work with COD, with a carbon-to-nitrogen ratio of 100 to 5