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Title of Journal: Water Sci Technol

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Abbravation: Water Science and Technology

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IWA Publishing

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ISSN

0273-1223

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Dynamic simulation of sludge blanket movements in

Authors: Göhle F Finnson A Hultman B
Publish Date: 1996/01/01
Volume: 33, Issue: 1, Pages: 89-99
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Abstract

Bromma sewage treatment plant in Stockholm is the second largest plant in Stockholm and will in the near future have requirements for nitrogen removal This means that a higher sludge age must be used in the aeration basin This may be accomplished by an increase of the sludge concentration up to values until the limiting solids flux is exceeded Measurement of the sludge blanket level is a possibility for better control of the sedimentation basin Different measurements were performed to evaluate the main factors influencing the levelDynamic simulation studies were performed at Bromma sewage treatment plant in Stockholm of the sludge blanket level and the return sludge concentration in a fullscale sedimentation basin The simulations were performed with the help of a Danish simulation package EFOR 1992 in which both reactions in the aeration basin mainly based on the IAWPRC model and separation processes in the sedimentation basin both clarification and thickening can be studied The thickening model is based on the solids flux theory and the Vesilind formula 1979 Different methods were compared for determination and use of characteristic parameters in the Vesilind formula


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Other Papers In This Journal:

  1. Volatile organic compounds (VOC) at some sewage treatment plants in Poland
  2. Detection of F+ bacteriophage in large volumes of water by a membrane filter method (MFM)
  3. Estimation of the fate of microbial water quality contaminants in a South African river
  4. Removal of PCR inhibiting substances in sewage sludge amended soil
  5. A newly isolated fungus participates in the corrosion of concrete sewer pipes
  6. Chemical perception and behavioral response of freshwater fish to 2-methylisoborneol
  7. Use of wastewater for crop production under arid and saline conditions: yield and hygienic quality of the crop and soil contaminations
  8. DAF treatment of a reservoir water supply: comparison with in-line direct filtration and control of organic matter
  9. Multiple interactions in riverine biofilms - surfactant adsorption, bacterial attachment and biodegradation
  10. Treatment of primary-settled urban sewage in pilot-scale vertical flow wetland filters: comparison of four emergent macrophyte species over a 12 month period
  11. Wastewater treatment by stabilization pond: Marrakesh experiment
  12. Methanogenic activity and performance of UASB, DSFF and USFF reactors
  13. Challenges for the development of advanced constructed wetlands technology
  14. Transition of a lake to turbid state six years after biomanipulation: mechanisms and pathways
  15. Nonlinear and set-point control of the dissolved oxygen concentration in an activated sludge process
  16. The influence of currents on circular secondary clarifier performance and design
  17. Treatment of gypsum waste in a two stage anaerobic reactor
  18. Evaluation of serratia marcescens bacteriophage as a tracer and a model for virus removal in waste stabilisation ponds
  19. Vulnerability to diffuse pollution and average nitrate contamination of european soils and groundwater
  20. Case studies on preliminary treatment facilities at marine outfalls
  21. Methods for studying dissolved oxygen levels in coastal and estuarine waters receiving combined sewer overflows
  22. The practical use of wastewater characterisation in design
  23. Efficacy of a combined system of copper and silver and free chlorine for inactivation of Naegleria fowleri amoebas in water
  24. On the modelling of the dynamic propagation of biological components in the secondary clarifier
  25. Application of experimental research methodology to the study of nitrification in mixed culture
  26. Preliminary uncertainty analysis – a prerequisite for assessing the predictive uncertainty of hydrologic models
  27. Evaluation of the WHO nematode egg guidelines for restricted and unrestricted irrigation
  28. Principles and applications of dissolved air flotation
  29. Complete anaerobic digestion of activated sludge by combining membrane separation and alkaline heat post-treatment
  30. Rational design of packed saturators
  31. Towards managing catchment water utilisation for the Lake St Lucia ecosystem
  32. Bioelements and heavy metals in dry and wet depositions at some localities in the morava river basin

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