How to Re-Suspend Settled Solids in an Agitated Tank | AIChE

You are here

How to Re-Suspend Settled Solids in an Agitated Tank

Fluids and Solids Handling
January
2023

If a process that involves solids in suspension loses power, it can be difficult to re-suspend the solids, depending on the particle characteristics. This article offers some practical solutions.

It is probably an example of the Second Law of Thermodynamics, or of Murphy’s Law, to say that whenever a process involves solids in suspension, a power failure will occur sooner or later, and the solids will settle out.

This article addresses particle re-suspension in a practical manner, with the goal of re-suspending solids without breaking the agitator (which typically consists of a motor, gear drive, shaft, and impellers). The article covers both the process design aspects of re-suspension and the mechanical integrity aspects. A key assumption of this article is that the agitator is well-designed for at least off-bottom suspension for the normal operating condition. This article does not discuss how to design an agitator to suspend solids, as that topic is covered extensively in the literature (1–5)...

Would you like to access the complete CEP Article?

No problem. You just have to complete the following steps.

You have completed 0 of 2 steps.

  1. Log in

    You must be logged in to view this content. Log in now.

  2. AIChE Membership

    You must be an AIChE member to view this article. Join now.

Copyright Permissions 

Would you like to reuse content from CEP Magazine? It’s easy to request permission to reuse content. Simply click here to connect instantly to licensing services, where you can choose from a list of options regarding how you would like to reuse the desired content and complete the transaction.

Features

Departments