Filter Surveillance

Reliable filter performance is critical to meeting water quality standards. Performing a filter surveillance on a periodic basis enables operational staff to identify problems before they become serious. It also ensures long filter media life and the consistent production of high quality finished water. A filter surveillance is a comprehensive evaluation of the physical condition of the filter and its media as well as its operation and performance. A filter surveillance conducted by Schott Engineering Associates (SEA) on either gravity or pressure filters includes:

• Assessment of filter media condition
• Evaluating backwash system effectiveness
• Measuring filter bed expansion
• Analyzing backwash water turbidity
• Performing a floc retention analysis
• Recommending ways to improve filter performance
• Training operators to conduct a filter surveillance