pH

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Understanding pH

pH, a measure of acidity or alkalinity, plays a critical role in water treatment processes. Maintaining the correct pH level ensures effective disinfection, coagulation, and overall water quality. pH control plays an important role in the water treatment process and its impact on various treatment stages, and common methods for pH adjustment are notable.

Chlorine, a widely used disinfectant, works most effectively within a specific pH range. Deviations from this range can reduce its effectiveness and lead to the formation of disinfection byproducts. The formation of flocs, essential for removing suspended solids, is influenced by pH. An optimal pH range promotes efficient coagulation and sedimentation.

Low pH levels can contribute to corrosion of pipes and other infrastructure, leading to water quality issues and increased maintenance costs. pH can affect the taste and odor of water. Extreme pH levels can make water unpleasant to consume.

SGWASA's lab technicians and utility teams actively monitor pH meters used to measure the pH of water at various points in the treatment process. pH controllers are used to automatically adjust the addition of chemicals to maintain the desired pH level.

In some cases, manual adjustments may be necessary to fine-tune pH levels.