Which of the following is considered domestic sewage?

Domestic sewage refers specifically to the wastewater generated from residential properties, which includes water from sinks, showers, toilets, dishwashers, and laundry facilities. This type of sewage typically contains organic matter, soap, household chemicals, and food waste, which is distinct from other types of wastewater that stem from industrial or agricultural sources.

Water from industrial cleaning is associated with processes from industry, containing chemicals and pollutants that are not present in domestic sewage. Wastewater from agricultural processes often contains fertilizers, pesticides, and other agricultural runoff, further differentiating it from domestic wastewater. Pesticide runoff specifically relates to the water that carries agricultural chemicals into waterways, which is not part of residential waste management.

Thus, wastewater from residential buildings is the prime example of domestic sewage, as it captures the essence of household-generated waste. Understanding this distinction helps in proper waste management and treatment practices for maintaining environmental health.