California Wastewater Treatment Operator Practice Exam 2025 - Free Wastewater Treatment Operator Practice Questions and Study Guide

Image Description

Question: 1 / 400

Why should sludge at the bottom of a clarifier be removed in a timely manner?

to prevent sludge gasification which causes the sludge to float

Sludge at the bottom of a clarifier should be removed in a timely manner to prevent sludge gasification, which causes the sludge to float. When sludge undergoes gasification, it can rise to the surface, affecting the clarifier's performance by interfering with the settling process and potentially causing solids carryover. This can reduce the effectiveness of the clarifier in solids removal and overall treatment efficiency. Therefore, timely removal of sludge helps maintain the proper operation of the clarifier and prevent issues related to gasification.

Get further explanation with Examzify DeepDiveBeta

to increase sludge volume for reuse

to enhance microbiological activity in the sludge

to improve sedimentation efficiency in the clarifier

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy