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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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DOI

10.1016/0039-6028(74)90206-4

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0273-1223

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Rational design of packed saturators

Authors: Haarhoff Johannes Rykaart E Maritz
Publish Date: 1995/02/01
Volume: 31, Issue: 3-4, Pages: 179-190
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Abstract

The paper describes the development of a mathematical model for predicting the mass transfer efficiency of packed saturators used for dissolved air flotation The first part of the paper deals with the equilibrium condition ie the maximum attainable air concentration with a packed saturator at 100 transfer efficiency The second part derives a kinetic model based on concentrationdriven diffusion and the LewisWhitman twofilm theory The transfer rate constant across the laminar liquid film and the wetted packing area are estimated with the Onda correlations The model is finally used to demonstrate the effects of hydraulic loading packing depth packing size and temperature on saturator efficiency

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  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
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