problems in WWTP problems in WWTP FilipaPires (Civil/Environmental) (OP) 18 Dec 13 05:24 Hello, I am having low oxigen levels in my aeration tanks and not being able to really understand why it's happening now. Can someone please give me a hint? Thank you RE: problems in WWTP bimr (Civil/Environmental) 18 Dec 13 08:21 Perhaps your aeration diffusers are plugged. Typically, the systems are designed with an excess of aeration capacity. RE: problems in WWTP adalinaabella (Civil/Environmental) 21 Jan 14 07:45 YuP! might be it's because of diffusion of plug. However, you should try to check the complete part! http://www.magicrubbishclearance.com/ RE: problems in WWTP QualityTime (Civil/Environmental) 24 Jan 14 07:16 broken submerged air header, lateral, diffuser cap? look for irregularity in the patterns on the water surface RE: problems in WWTP semo (Civil/Environmental) 28 Jan 14 10:11 What kind of blowers do you have? Are your air filters clean? Centrifugals can see a large decrease in SCFM with a dirty filter. And washing them or blowing them out with compressed air may not clean them enough to get your rated capacity. Has your waste stream changed? Is someone dumping something in large quantities that could effect your aeration? Have you checked COD/BOD on influent to see if it is normal?