Which chemical is recognized for its effectiveness in removing algae?

Copper sulfate is well-known for its effectiveness in removing algae from water bodies. It acts as an algaecide, killing algae by disrupting their cellular processes. When introduced into water, copper sulfate releases copper ions, which are toxic to algae but relatively less harmful to other aquatic life when used in controlled amounts. This property makes it a popular choice in various applications, such as in ponds, lakes, and even in some wastewater treatment facilities where algae blooms can create problems, including oxygen depletion and unpleasant odors.

Sodium hypochlorite is primarily used as a disinfectant, and while it can have some effect on algae, its primary role is not specifically for algae removal. Aluminum sulfate serves mainly as a coagulant in water treatment processes, helping to aggregate particles for easier removal but is not specifically effective for algae control. Calcium carbonate is typically used to adjust pH levels and does not have direct algaecidal properties.