Sewage contain all the following except
Sewage contains various substances, including:
1. Water
2. Organic matter (such as human waste and food waste)
3. Inorganic matter (such as soil and debris)
4. Bacteria, viruses, and other microorganisms
5. Chemicals (such as cleaning products and medications)
6. Nutrients (such as nitrogen and phosphorus)
Therefore, it can be said that sewage does not contain except for clean water.
Sewage typically contains various kinds of waste materials and substances, including:
1. Water: Sewage consists of water that carries waste and other materials.
2. Organic waste: It contains organic matter such as feces, urine, food scraps, and other biological waste from human and animal sources.
3. Inorganic waste: Sewage may contain inorganic waste such as paper, plastics, chemicals, and other non-biodegradable materials.
4. Pathogens: Sewage often contains harmful pathogens like bacteria, viruses, and parasites that can cause diseases.
5. Nutrients: Sewage may contain nutrients like nitrogen and phosphorous, which can contribute to water pollution and harm aquatic ecosystems.
However, sewage does not typically contain all of the following:
- Oxygen: Sewage is oxygen-depleted due to the decomposition of organic matter, and oxygen is usually not present in significant amounts.
- Clean water: Sewage is a mixture of wastewater and other waste materials, so it does not contain clean water.
- Pure chemicals: While sewage may contain chemicals, they are typically diluted and mixed with other waste materials rather than being pure chemicals.