Condition: BRAND NEW
ISBN: 9780471206941
Year: 2002
Publisher: John Wiley & Sons Inc (US)
Pages: 192


Description:
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.