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Description
Settleability Problems and Loss of Solids in the Activated Sludge ProcessCondition: 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
Condition: BRAND NEWISBN: 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.
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★★★★★ 5
This is my second Tall Tails Stuffy! Gracie Approved!
We bought the fox (12”) version of this toy a while back and my dog loved it! The only sad thing was her brother ripped the tail off. So we had to replace it.
The squeaker, never died on the old one in the 6 months my dog obsessed over it, so I hope this one is just as durable!
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Reviewed in the United States on May 10, 2022
★★★★★ 5
Great quality toy
This is a very high quality dog toy. Dog loves it...it has different textures, a squeaker, and perfect size for my 10lb shih tzu. The entire line of toys from this company are great, just whatever your dog likes is what you should get, but people should not be down rating this specific toy. If your dog doesn't like it then that doesn't mean the toy is bad. Nobody can project if your dog will like it.
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Reviewed in the United States on August 30, 2021
★★★★★ 2
It’s very small; check the measurements
It’s very small; check the measurements
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Reviewed in the United States on March 7, 2026
★★★★★ 5
Great play toy
Color: Red Lobster
My dogs loved this toy. Played with for several days. Rug of war pulled it apart.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Great toy
Color: Red Lobster
I bought them as gifts for Christmas. Bothe dogs loved this.
It is quite sturdy also
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Reviewed in the United States on April 9, 2026