Florida Drinking Water Operator "B" Practice Test

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Study for the Florida Drinking Water Operator "B" Test. Use multiple choice questions, flashcards, and explanations to prepare. Ace your certification!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Why should alum sludge from a treatment plant not be used on agricultural land?

It can create soil hardness
It increases nutrient levels excessively
It is beneficial for crop growth
It attracts rodents

The correct answer is: It can create soil hardness

Alum sludge, which is a by-product of the water treatment process where aluminum sulfate (alum) is used as a coagulant, is generally not suitable for agricultural land primarily because it can lead to soil hardness. When applied to soil, alum sludge can change the physical structure of the soil, making it compact and reducing its porosity. This not only limits water infiltration but can also impede root growth, negatively affecting plant health and crop yields. While some might argue that alum sludge increases nutrient levels or attracts pests, the fundamental concern is the improper alteration of soil structure that occurs. The long-term implications of applying alum sludge without proper treatment and understanding of its composition can lead to challenges in soil management and agricultural productivity.