Sludge bulking occurs when ...
Published by Prem Baboo, Researcher at www.researchGate.net
Sludge bulking occurs when the sludge fails to separate out in the sedimentation tanks. The main cause of sludge bulking is the growth of filamentous bacteria. Filamentous microorganisms grow in long strands that have much greater volume and surface area than conventional floc and are very slow to settle.
To remove the above ..
- Analyse the bacteria Generally Filamentous bacteria are the most common cause of sludge bulking.
2. Source of bacteria
3. Necessary dissolved oxygen (DO) concentration to prevent bulking
- The F/M rate (food to microorganism) is a control number for determining the proper number of microorganisms for the system.
- Chlorine and hydrogen peroxide can control the filaments
Excessive filamentous development is often caused not only by environmental conditions but also by the influent itself which may contain food for bacteria.
Microscopic examination determines which type of filamentous bacteria is present and determines the treatment that should be applied.