What is the main advantage of using the activated sludge process in wastewater treatment?

The activated sludge process is recognized for its high efficiency in removing organic matter from wastewater. This method involves aerating the wastewater to promote the growth of microorganisms, which then consume the organic pollutants. The result is a significantly reduced concentration of these contaminants in the treated water, making this process particularly suitable for handling various levels of organic material.

In the context of wastewater treatment, the ability to effectively reduce biochemical oxygen demand (BOD) and total suspended solids (TSS) ensures that the treated effluent meets required environmental standards before being released into the environment or reused. Thus, the activated sludge process supports both regulatory compliance and environmental protection, showcasing its pivotal role in modern wastewater management.

While other choices address various aspects of wastewater treatment, such as cost-effectiveness and operational simplicity, none match the primary focus of the activated sludge process's capability to efficiently remove organic pollutants from the water.