What is classified as sewage?

Sewage is specifically defined as liquid waste that contains human bodily fluids and other organic materials, often accompanied by various chemicals. This definition encapsulates the waste produced in residential and commercial settings that are discharged into the sewage system. The presence of human waste is a critical factor in the classification of sewage, as it entails a higher potential for pathogen transmission and requires proper treatment before it can be safely released into the environment.

Liquid waste from agricultural sources, water with high mineral content, and solid laboratory waste do not meet this specific criteria and are classified differently. Agricultural waste pertains to run-off from farming activities and does not specifically involve human waste. Water with high mineral content may indicate pollution but does not necessarily contain the organic and human-derived components that define sewage. Solid laboratory waste would typically fall under different hazardous or waste management regulations entirely.

Understanding the precise definition of sewage is important for appropriate treatment and management, as well as for ensuring public health and environmental safety. This is why the classification of liquid waste containing human and chemical matter is considered sewage.