Public water systems are an essential part of daily life, providing safe and clean water for drinking, cooking, and hygiene.
They include municipal water supply systems, purified water systems, and industrial water treatment systems, all of which require strict control of water quality to ensure safety and compliance with regulatory standards.

Water treatment processes typically involve multiple stages such as filtration, disinfection, and purification, ensuring the removal of suspended solids, microorganisms, and harmful contaminants.

Due to the complexity of water sources and distribution systems, public water systems must meet high requirements for safety, reliability, and efficiency.
Filtration plays a critical role in ensuring water quality by removing particles, bacteria, and other impurities throughout the process.

Different water treatment stages require different filtration solutions to ensure consistent performance and long-term system stability.

Filtration is widely used across various stages of public water treatment processes, including pretreatment, purification, sterilization, and terminal filtration.

The main filtration steps include:

1. Prefiltration: remove large particles and suspended solids to protect downstream equipment
2. Activated carbon filtration: remove chlorine, odor, and organic contaminants
3. Fine filtration: remove smaller particles and improve water clarity
4. Security filtration: protect downstream systems and ensure stable operation
5. Sterilizing filtration: remove bacteria and microorganisms
6. Terminal filtration: ensure final water quality meets required standards