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State-of-the-Art in Managing Sludge Settling Problems for Some Treatment Plants in the United States

Received: 16 May 2016     Accepted: 22 June 2016     Published: 18 September 2016
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Abstract

Foaming and bulking in secondary mixed liquor particularly in activated sludge waste water treatment plants is a growing problem. The efficiency of secondary waste water treatment is critically dependent on the separation of the supernatant liquids from the sludge. Bulking and foaming primarily make it very difficult or impossible to achieve effective separation, thus reducing the treatment efficiency. The study is part of an ongoing effort by practitioners to understand and quantify the extent of the problems of foaming and bulking. The study presents a survey of some waste water plants in the northwest United States, and the results of statistical analysis in search of linkages between operating characteristics and settling problems.

Published in American Journal of Biological and Environmental Statistics (Volume 1, Issue 2)
DOI 10.11648/j.ajbes.20150102.13
Page(s) 58-65
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Activated Sludge, Foaming, Bulking, Secondary Treatment, Settling, Flocs

References
[1] U. S. EPA, 1973. Summary of the Clean Water Act. http:/www2.epa.gov/laws /laws.
[2] V. Chaudhary, 2008. Survey of current control and treatment of activated sludge settling problems. M. S. Thesis, Saint Martin’s University, Lacey WA, USA.
[3] A. M. P. Martins, K. Pagilla, J. J. Heijnen, M. C. M. Loosdrecht, 2004. Filamentous bulking sludge - a critical review. J. Water Research. 38, 793-817.
[4] D. Jenkins, M. G. Richard, 1988. The causes and control of activated-sludge bulking. J. Tappi. 68, 73-76.
[5] D. Jenkins, D., M. G. Richard, G. T. Daigger, 2000. Manual on the Causes and Control of Activated Sludge Bulking, Foaming, and Other Solids Separation Problems, third ed. Lewis New York.
[6] J. R. Blackbeard, G. A. Ekama, G. v. R. Marias, 1986. Survey of filamentous bulking and foaming in activated sludge plants in South Africa. J. Water Pollution Control. 85, 90-100.
[7] P. Madoni, D. Davoli, G. Gibb, 2000. Survey of Filamentous microorganisms from Bulking and foaming activated-sludge plants in Italy. J. Water Research. 34, 1762– 1772. Marshall, R., & Shimoto, H., 2004. Troubleshooting activated sludge problems. J. Tappi. 58, 12-25.
[8] A. Elliott, 2002. A survey of sludge bulking and its control in the Canadian pulp and paper industry. J. Pulp and Paper Canada. 103, 43-47.
[9] E. M. Seviour, C. W. DeGrey, J. A. Soddell, R. J. Seviour, K. C. Lindrea, 1994, Studies on filamentous bacteria from Australian activated sludge plants. J. Water Research. 18, 2335-2342.
[10] L. F. Blackall, A. E. Harbers P. F. Greenfield, A. C. Hayward, 1991. Foaming in activated sludge plants: A survey in Queensland, Australia and an evaluation of some control measures. J. Water Research. 25, 313–317.
[11] O. Krhutková, I. Ruzicková, J. Wanner, 2002. Microbial evaluation of activated of sludge and filamentous population at eight Czech nutrient removal activated sludge plants during year 2000. J. Water Science and Technology. 46, 471-478.
[12] J. Wanner, I. Ruzicková, P. Jetmarová, O. Krhutková, J. Paraniaková, 1998. A national survey of activated sludge separation problems in the Czech Republic: filaments, floc characteristics and activated sludge metabolic properties. J. Water Science and Technology. 37, 271-279.
[13] Metcalf and Eddy Inc., 2014. Wastewater engineering, treatment and reuse. Fifth edition, Tchbanoglous, G., Burto F. L., Stensel H. D., Ryujiro T., Burton F(Eds.). McGraw Hill, New York.
[14] D. H. Eikelboom, J. Grovenstein, 1998. Control of bulking in a full scale plant by addition of talc. J. Water Science and Technology. 37, 297-301.
[15] D. H. Eikelboom, B. Geurkink, 2002. Filamentous micro-organisms observed in industrial activated sludge plants. J. Water science and Technology. 46, 535–542.
[16] I. Demel, C. H. Moebius, 1988. Improving the settling of activated sludge by chemical additives. J. Water Science and Technology. 20, 283-286.
[17] K. Andreasen, J. Agertved, J. Petersen, H. Skaarup, 1999. Improvement of sludge settleability in activated sludge plants treating effluent from pulp and paper industries. J. Water Science Technology. 40, 215–222.
[18] D. Juang, 2005. Effects of synthetic polymer on the filamentous bacteria in activated sludge. J. Bioresource Technology. 96, 31-40.
[19] H. Yang, Q. Yao, C. Huang, J. Deng, J. Zhang, 2009. Control of filamentous bulking in the A/O biological phosphorus removal process. J. Beijing University of Technology. 35, 1663-1669.
[20] SPSS Inc., 2012. Guide to data analysis, Prentice Hall publishers, New Jersey.
[21] D. Jenkins, M. G. Richard, 1988. The causes and control of activated-sludge bulking. J. Tappi. 68, 73-76.
[22] P. H. Nielsen, C. Kragelund, R. J. Seviour, J. L. Nielsen, 2009. Identity and ecophysiology of filamentous bacteria in activated sludge. J. FEMS Microbiology Reviews, 33, 969-998.
Cite This Article
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    Dintie Shaibu Mahamah. (2016). State-of-the-Art in Managing Sludge Settling Problems for Some Treatment Plants in the United States. American Journal of Biological and Environmental Statistics, 1(2), 58-65. https://doi.org/10.11648/j.ajbes.20150102.13

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    ACS Style

    Dintie Shaibu Mahamah. State-of-the-Art in Managing Sludge Settling Problems for Some Treatment Plants in the United States. Am. J. Biol. Environ. Stat. 2016, 1(2), 58-65. doi: 10.11648/j.ajbes.20150102.13

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    AMA Style

    Dintie Shaibu Mahamah. State-of-the-Art in Managing Sludge Settling Problems for Some Treatment Plants in the United States. Am J Biol Environ Stat. 2016;1(2):58-65. doi: 10.11648/j.ajbes.20150102.13

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  • @article{10.11648/j.ajbes.20150102.13,
      author = {Dintie Shaibu Mahamah},
      title = {State-of-the-Art in Managing Sludge Settling Problems for Some Treatment Plants in the United States},
      journal = {American Journal of Biological and Environmental Statistics},
      volume = {1},
      number = {2},
      pages = {58-65},
      doi = {10.11648/j.ajbes.20150102.13},
      url = {https://doi.org/10.11648/j.ajbes.20150102.13},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajbes.20150102.13},
      abstract = {Foaming and bulking in secondary mixed liquor particularly in activated sludge waste water treatment plants is a growing problem. The efficiency of secondary waste water treatment is critically dependent on the separation of the supernatant liquids from the sludge. Bulking and foaming primarily make it very difficult or impossible to achieve effective separation, thus reducing the treatment efficiency. The study is part of an ongoing effort by practitioners to understand and quantify the extent of the problems of foaming and bulking. The study presents a survey of some waste water plants in the northwest United States, and the results of statistical analysis in search of linkages between operating characteristics and settling problems.},
     year = {2016}
    }
    

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    T1  - State-of-the-Art in Managing Sludge Settling Problems for Some Treatment Plants in the United States
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    T2  - American Journal of Biological and Environmental Statistics
    JF  - American Journal of Biological and Environmental Statistics
    JO  - American Journal of Biological and Environmental Statistics
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    UR  - https://doi.org/10.11648/j.ajbes.20150102.13
    AB  - Foaming and bulking in secondary mixed liquor particularly in activated sludge waste water treatment plants is a growing problem. The efficiency of secondary waste water treatment is critically dependent on the separation of the supernatant liquids from the sludge. Bulking and foaming primarily make it very difficult or impossible to achieve effective separation, thus reducing the treatment efficiency. The study is part of an ongoing effort by practitioners to understand and quantify the extent of the problems of foaming and bulking. The study presents a survey of some waste water plants in the northwest United States, and the results of statistical analysis in search of linkages between operating characteristics and settling problems.
    VL  - 1
    IS  - 2
    ER  - 

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Author Information
  • Department of Civil Engineering, Saint Martin’s University, Lacey, USA

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