Documents About the Sequencing Batch Reactors (SBR) Calculation

Published on by in Technology

Hi, colleagues!

Tell me please if you have an English translation of German  Merkblatt DWA-M 210
Belebungsanlagen mit Aufstaubetrieb (SBR)

or

please recommend some other literature sources with the calculation of SBR?

Taxonomy

7 Answers

  2. Our SBR design in Rosebery Tasmania has achieved < 0.5mg/l TP consistently over 3 years, Ammonia7pH on discharge as N removal takes up alkalinity and the influent Municipal stream has inherent low alkalinity. Flow varies 400kL to 3ML/d in cold environment.  Inflow 8 to 15C.  Cold climates have low temp nitrifiers in the waste stream almost invariably. We also add a small amount of liquid sugar to ensure full TN removal. We do not use any chemical P strip. It is full uptake by PAO.  We have 20 years and nearly 40 full scale plants. Plants like all activated sludge plants foam with fluffy white foam while biomass is being conditioned. It is a reaction of the organisms to different food sources. Once you  breed a biomas that has something that likes all food sources ever found in the waste water foaming should stop. Foaming is easy to manage. The easiest step is to discontinue aeration for a short period (minutes) until foaming settles.  If 'shiny foam then too much biomass or not enough O2 or both.  Selection of non foaming biomass takes at most a few days. At worst an intervention with silicone antifoam can be used to get over the hump. Gerardi is OK but way off the mark on some things. It is just an activated sludge system with 100% biomass available in the react chamber.  You can reproduce almost any theoretical condition you want from the literature. The secret is measure the process so you can control the process. Oh and then control it!

    Answered on by

    1 Comment

    1. Thank you a lot for advices !

  3. There is a book "Troubleshooting the Sequencing Batch Reactor" by Michael Gerardi  published by John Wiley & Sons which is quite useful.  SBRs are not my favourite system although they do save space and remove the need for a settlement tank.  They are not the best at removing phosphate and ammonia levels can be higher.  There is also a tendency for them to foam.

    1 Comment

    1. Thank you for recommendation 

  4. please fiind attached!

  5. Metcalf and Eddy would be the better for the understanding of the SBR design.

    1 Comment

    1. Thank you for answer!

      I've already read Metcalf and Eddy and want to compare calculation in it and Merkblatt DWA-M 210 
      Belebungsanlagen mit Aufstaubetrieb (SBR)

  6. The document you seek is quite dated.  M&E has the same basic information with some explanation. IWA SBR conference papers are the most up to date 2008 I think.  Both have quite a lot that will mislead you. There are many variants of SBR.  All are activated sludge plants.  Simply assume all reactions go to completion. Kinetics are to a large effect meaningless.  The reaction kinetics will speed up until they meet the rate of supply of the limiting factor. If you provide enough oxygen at the right time you can get all reactions to completion in a 6 hr cycle for almost any waste water.  The next limiter is usually alkalinity, then micronutrients. The other secret is to feed into an anoxic compressed biomass and then have AOTR > 2xOUR on average.  high f:m is better than low. all the rest  can be calculated using M&E. The equations give rough stochiometry. Do this well and you can achieve ,

    Answered on by

    1 Comment

    1. Thank you very much!

      I have the M&E . I want to compare calculations from different literature ​sources expessially from Merkblatt DWA-M ​210  ​
      Belebungsanlagen ​mit ​Aufstaubetrieb (​SBR) .