Settleability problems and loss of solids in the activated sludge process

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INFORMATION

AUTEUR
Michael-H Gerardi
DIMENSION
4,97 MB
NOM DE FICHIER
Settleability problems and loss of solids in the activated sludge process.pdf
ISBN
9936958609836

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.

He also championed the use of a laboratory centrifuge as a quick process control tool for sludge age calculations and process adjustments. If we go back to these basic principles of sludge quality, paying attention ... Settleability Problems and Loss of Solids in the Activated Sludge Process: Michael H.

Soaps are salts of large fatty acids, such as sodium stearate. The cleaning action of soaps is due to their ability to emulsify or suspend water‐insoluble organic compounds (fats and oils) in water and their ability to lower the surface ... The activated sludge process is the most commonly used treatment system for municipal and industrial wastewaters in North America.

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