What is one key goal of sewage treatment?

One key goal of sewage treatment is to facilitate environmental sustainability and public health. This process involves removing contaminants and pathogens from wastewater before it is released back into the environment or reused. Proper sewage treatment prevents pollution of natural water bodies, which helps maintain healthy ecosystems and protects aquatic life. Additionally, by treating sewage effectively, the risks of waterborne diseases among the public are significantly reduced, thereby safeguarding community health. This foundational aspect of sewage treatment ensures that the water returned to the environment is safe, contributing to both ecological balance and the well-being of the population.

Other options, while they may relate to aspects of water management or resource recovery, do not encapsulate the primary objectives of sewage treatment as effectively as environmental sustainability and public health do. Creating a market for bottled water, producing electricity from waste, and supporting recreational water activities are important, but secondary to the immediate health and environmental benefits that proper sewage treatment provides.