Which of these is NOT a typical objective of wastewater treatment processes?

• A. To increase oxygen levels in the water
• B. To remove harmful substances
• C. To reduce organic load
• D. To produce marketable solid waste byproducts

Answer: (D)

The goal of wastewater treatment processes is primarily focused on improving water quality before it is released back into the environment or reused. This encompasses various objectives, such as increasing oxygen levels in the water to support aquatic life, removing harmful substances that could pose health risks or environmental damages, and reducing the organic load to minimize the impact on ecosystems and treatment facilities.

Producing marketable solid waste byproducts is not typically a primary objective of wastewater treatment processes. While some wastewater treatment facilities may engage in the recovery and marketing of byproducts from sludge processing, such as compost or fertilizers, this is often secondary to the main goals of treating and improving wastewater quality. The production of byproducts is usually not an inherent objective but rather a potential benefit that can arise from effective treatment processes.