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9134

Coagulation Optimization Tools

4.5

Drinking Water

Aqua Pennsylvania, Inc.

David Rustay

DJRustay@aquaamerica.com

2155935789 Ext.

Partner Website

This technical training course is intended for operators with an intermediate knowledge of the surface water coagulation/filtration treatment process. The purpose of this course is to provide a detailed background of the tools that are used in determining and maintaining the optimal coagulant dose. Optimization in this context is explained to vary based on the raw water conditions, organics loading, and regulatory objectives of the plant. This course focuses on instrumentation or simple process control testing that provides the charge of the water, organics concentration, and filterability. Turbidity is explained (examples provided) to be a useful but unreliable tool for coagulant dosing. Through this lens, the training provides operators with a better understanding of these tools, how/when they can be used, and how these tools guide coagulant dosing decisions. A significant emphasis is placed on a multitude of tools guiding a decision, not just turbidity or operator experience. A better understanding of the nuances of each tool provides the operator with a better understanding of how to decide and subsequently confirm that the pre-treatment process is optimized thus providing a firm initial barrier of protection.

Intermediate thru Advanced

What is coagulation Why is coagulation necessary What are some of the characteristics of some common coagulants and their impacts What is natural organic matter, characteristics, and treatability concerns Why is optimizing coagulation important DBP Precursor removal/Treatment Technique requirements Brief overview of Enhanced coagulation Effect of DBP precursor removals on distribution DBP formation Why turbidity is not a good indicator of coagulant dosing UV254 - what is it, how can it be used, how can it inform coagulant dosing strategies/target setting; pros/cons/considerations zeta-potential - what is it, how can it be used, how can it inform coagulant dosing; pros/cons/considerations streaming current detector- what is it, how can it be used, how can it inform coagulant dosing; pros/cons/considerations filterability - what is it, how can it be used, how can it inform coagulant dosing; pros/cons/considerations Brief overview of jar testing- what is it, how can it be used, how can i

Target audience is for surface water treatment plant operators with an intermediate knowledge of surface water treatment processes (e.g. coagulation, flocculation). Portions of this training briefly discuss downstream impacts of the coagulation process on filtration and testing that can be completed to minimize these impacts.

Classroom