Sewage refers to the wastewater produced by residential, commercial, and industrial establishments that contains an array of contaminants, including human waste, food waste, cleaning agents, and chemicals. Effective sewage treatment is essential for safeguarding public health and protecting the environment. ### How Sewage Treatment Protects Health Sewage contains various pathogens that can cause waterborne illnesses such as cholera, typhoid, and dysentery. Sewage treatment plants employ advanced technologies to eliminate these harmful microorganisms, rendering the water safe for release back into the environment. ### How Sewage Treatment Protects the Environment Untreated sewage can contaminate water bodies, pollute soil, and damage ecosystems. Sewage treatment processes remove pollutants like heavy metals, nutrients, and bacteria, preventing their release into the environment and preserving the health of natural resources. Sewage treatment plays a crucial role in protecting public health and the environment. Its effectiveness lies in its ability to eliminate pathogens and contaminants, contributing to cleaner water and a healthier ecosystem.