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Settleability Problems and Loss of Solids in the Activated Sludge Process by Michael H. Gerardi

Settleability Problems and Loss of Solids in the Activated Sludge Process

by Michael H. Gerardi
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Book cover type: Paperback
  • ISBN13: 9780471206941
  • Binding: Paperback
  • Subject: N/A
  • Publisher: Wiley-Interscience
  • Publisher Imprint: Wiley-Interscience
  • Publication Date:
  • Pages: 179
  • Original Price: GBP 69.95
  • Language: English
  • Edition: N/A
  • Item Weight: 354 grams
  • BISAC Subject(s): Environmental / General and Hydraulics

The activated sludge process is the most versatile, commonly used wastewater treatment system in North America; however, many activated sludge processes frequently experience operational problems related to poor compaction or settleability of secondary solids and loss of secondary solids from the clarifier. Eschewing the technical jargon and copious chemical equations found in the majority of wastewater studies, Settleability Problems and Loss of Solids in the Activated Sludge Process speaks directly to plant operators, showing them how to identify and solve common problems and achieve maximum efficiency.

Michael H. Gerardi’s hands-on guide addresses the most common plant operational problems, such as increased costs, loss of treatment efficiency, and permit violations. Using numerous tables and illustrations, Settleability Problems provides microscopic and analytical techniques for troubleshooting and identifying the conditions responsible for settleability problems and loss of solids. It includes pictures of wet mounts and smears of acceptable and unacceptable microscopic conditions of the activated sludge and presents corrective measures for operational problems. Chapters include:

*Undesired Filamentous Growth *Nutrient-Deficient Floc Particles *Denitrification *Slug Discharge of Soluble cBOD *Viscous Bulking or Zoogloeal Growth *Production and Accumulation of Foam and Scum

Volume II in the series, Settleability Problems will prove to be of unparalleled value to wastewater treatment plant operators as well as students of wastewater microbiology.

MICHAEL H. GERARDI, MS, James Madison University, and currently a research project associate at The Pennsylvania State University, is responsible for the development and presentation of wastewater biology courses. Previous to this appointment, he served as a technical coordinator and manager for the Williamsport (Pennsylvania) Sanitary Authority, where he was responsible for the operational and administrative functions of two activated sludge plants.

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