Potential uses for calcium sulfate sludge, resulting from acid neutralization, include:
A) wallboard
B) soil conditioner
C) concrete
D) wallboard and soil conditioner
E) all of these

Question

Quizplus · Accepted Answer

Calcium sulfate sludge can be used as a raw material in the production of wallboard, as it is a key component in gypsum board. It can also be used as a soil conditioner, as calcium sulfate can improve soil structure and increase water retention. Therefore, the best choice is D: wallboard and soil conditioner. While it is possible that calcium sulfate sludge could be used in concrete, it is not a common application.

Potential Uses for Calcium Sulfate Sludge, Resulting from Acid Neutralization