wastewater dissolved oxygen Articles
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Case study - drain field renovation with RetroFAST
Engineer: Dick Bartel, Point One Engineering Distributor: Frank Hay, Pinnacle Environmental Technologies, Inc. Location: British Columbia, Canada Dick Bartel approached Frank Hay in mid August 2002 looking for alternatives for repairing a neighbor’s biologically-failing conventional septic system. Bartel had originally looked into replacing the entire soil absorption system with a ...
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Frequently Asked Questions and Troubleshooting in Activated Sludge Process (Part 2)
Q: I ran into a problem. In the past few days, we found that the sludge was floating in lumps in the secondary sedimentation tank, which was very loose. It may be due to swelling of the sludge, which is not serious. But I am very surprised that the MLVSS of the biochemical tank is about 2000mg/l, the sludge age is relatively short, the sludge is not aging, and it is within the control range. The ...
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