Abstract: The disclosure provides automated methods and systems for optimized dosing of chemicals, such as coagulants, acids, and/or bases, in water treatment processes. The methods and systems of the disclosure can provide a coagulant dosing regimen that mitigates turbidity and organic contaminant content while maintaining effective floc precipitation, agglomeration, and settling without significant human intervention.

Abstract: An electrode cleaning and calibration system generally comprises a sensor holder assembly machined from a block of solid acrylic or similar plastic material, which can accommodate a variety of types and sizes of sensors for use in monitoring and measurement of water processing and treatment processes. Examples of sensors suitable for use in the system include pH sensors, dissolved oxygen sensors, chlorine sensors, ozone sensors, total suspended solid sensors, mixed liquor suspended solid sensors, ammonia sensors, monochloramine sensors, and ultraviolent transmittance sensors.