"Improvement of wastewater treatment through DO meter maintenance" Textile manufacturer - dyeing factory

In fact, "measuring the oxygen levels" was the key to the ongoing poor drainage treatment at the site!

We would like to introduce a case of maintenance and cleaning/recalibration of the DO meter at the wastewater treatment facility of a fiber manufacturer and dyeing factory. One day, an anomaly occurred in the biological treatment tank that processes factory wastewater. Various responses were attempted on-site, such as increasing aeration and adding chemicals, but no decisive improvement was achieved, and the overall instability of the treatment tank continued. We suspected a decrease in DO (dissolved oxygen) concentration within the biological treatment tank. Although no significant abnormalities were observed in the DO meter's displayed values, upon performing maintenance and cleaning/recalibration of the sensor, it became clear that the actual dissolved oxygen concentration was significantly lower than the measured values displayed. Based on this cause, we reviewed the aeration conditions, resulting in a recovery of microbial activity, which ultimately led to improvements in sedimentation. [On-site Issues] - Sludge does not settle in the downstream sedimentation tank. - Treated water is cloudy. - It seems that microorganisms are not functioning properly. *For more details, please download the PDF or feel free to contact us.*

Other measurement, recording and measuring instrumentsWastewater/wastewater treatment equipment