Solids on the bottom of a wet well are called?

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Prepare for the ADEQ Wastewater Collections 2 Exam with comprehensive flashcards and multiple choice questions. Hone your skills with detailed hints and explanations for each question. Excel on your exam with confidence!

Multiple Choice

Solids on the bottom of a wet well are called?

Explanation:
Solids that settle to the bottom under gravity are settleable solids. In a wet well, some particles are heavy enough to drop out of the liquid and collect as sludge, rather than remaining suspended in the water. This behavior distinguishes them from suspended solids, which stay in the water column, and from colloidal particles, which are so small they often stay dispersed and require special treatment to remove. The term settleable reflects their tendency to settle out within a standard time, which is why they accumulate at the bottom and need periodic desludging.

Solids that settle to the bottom under gravity are settleable solids. In a wet well, some particles are heavy enough to drop out of the liquid and collect as sludge, rather than remaining suspended in the water. This behavior distinguishes them from suspended solids, which stay in the water column, and from colloidal particles, which are so small they often stay dispersed and require special treatment to remove. The term settleable reflects their tendency to settle out within a standard time, which is why they accumulate at the bottom and need periodic desludging.

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