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| The sludge in my clarifier isn’t settling as well as it normally does. Is there anything I can do to improve the settling? |
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| There are several things that can be done, but first an attempt should be made to determine what might be causing the settling problem. The characteristics of the influent flow should be checked for anything unusual. This might help to determine if your plant is receiving a toxic or unusually high organic load. The internal plant treatment processes should also be checked for proper operation: Is there enough D.O. in the aeration tank? How much sludge is being retained in the system? The answer to improving the settling may be to change the treatment strategy slightly such as increasing or decreasing the return and wasting rates. |
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| The reason we conduct so many tests and record so much data is so that when “things” aren’t running right, we can go through this data and see what worked right in the past. Even though our job is to try to maintain that steady state of operations, there are always problems that arise beyond our control. Having access to this historical data can help you in dealing with these problems. While the corrective measures are being conducted, a settling agent can help to “tighten” up that blanket until the problem is corrected. |
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