Wastewater
Wastewater is any water that has been adversely affected in quality by anthropogenic influence. It can originate from a combination of domestic, industrial, commercial or agricultural activities, stormwater runoff or infiltration into the sewer.
Sources of Wastewater[edit | edit source]
Wastewater can come from a variety of sources. The main sources include:
- Domestic - This is wastewater that comes from residential households. It includes water from sinks, showers, bathtubs, toilets, washing machines, and dishwashers.
- Industrial - This is wastewater that comes from industrial processes. It can contain a variety of pollutants, depending on the industry.
- Commercial - This is wastewater that comes from commercial businesses. It can include water from sinks, toilets, and industrial processes.
- Agricultural - This is wastewater that comes from agricultural activities. It can include runoff from fields, as well as water used in the raising of livestock.
- Stormwater Runoff - This is water that flows over the ground surface when it rains. It can pick up pollutants as it flows, making it a source of wastewater.
Treatment of Wastewater[edit | edit source]
The treatment of wastewater is a multi-stage process that involves removing contaminants and making the water safe for discharge back into the environment. The main stages of wastewater treatment include:
- Preliminary Treatment - This stage involves the removal of large objects and grit from the wastewater.
- Primary Treatment - This stage involves the removal of suspended solids from the wastewater.
- Secondary Treatment - This stage involves the removal of dissolved and suspended biological matter from the wastewater.
- Tertiary Treatment - This stage involves the removal of any remaining inorganic compounds and viruses from the wastewater.
Environmental Impact[edit | edit source]
The discharge of untreated or inadequately treated wastewater can have significant impacts on the environment. It can lead to the pollution of water bodies, damage to ecosystems, and pose a risk to human health.
See Also[edit | edit source]
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