Treating water from reservoirs involves several key steps to ensure it is safe for consumption. Based on common practices, this process typically includes filtering out particles and sterilising the water to eliminate harmful microorganisms.
The treatment methods described involve physical filtration and chemical sterilisation.
Key Reservoir Water Treatment Methods
Water from reservoirs undergoes specific processes to remove impurities and make it potable. The reference highlights two primary stages: Filtration and Chlorination.
1. Filtration
- Process: Water is carefully sprayed onto layers specially prepared using sand and gravel.
- Mechanism: As the water trickles down through these layers, smaller insoluble particles that may be present are effectively removed.
- Maintenance: The filter beds require regular cleaning. This is done by pumping clean water backwards through the filter, which helps to dislodge and remove the accumulated particles.
2. Chlorination
- Process: Chlorine gas is introduced and injected directly into the water.
- Purpose: The primary goal of this step is to sterilise the water. Chlorine is a powerful disinfectant that kills bacteria, viruses, and other pathogens, making the water safe to drink.
These steps work together to clean the water, first by removing physical impurities and then by eliminating biological contaminants.
Treatment Process Summary
Here is a quick overview of the steps described:
| Step | Method | Purpose |
|---|---|---|
| Filtration | Sprayed onto sand and gravel layers | Removes smaller insoluble particles |
| Chlorination | Injecting chlorine gas | Sterilises the water (kills pathogens) |
By following these processes, reservoir water is transformed into safe and clean drinking water.
