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Municipal Water TreatmentCairo, Egypt
Cairo Water Utility — Coagulant Upgrade
Switching to CHIMI ART ferric chloride reduced turbidity by 40% and chemical costs by 18%.
Challenge
A major Cairo water utility was struggling with high settled turbidity during Nile flood season, requiring frequent filter backwashes and high chemical doses with their existing alum-based treatment.
Solution
CHIMI ART's technical team conducted jar tests with ferric chloride and optimized the dose and pH for flood-season conditions. A 3-month trial at one treatment plant was followed by full conversion across 3 plants.
Results
- 40% reduction in settled water turbidity
- 18% decrease in chemical costs (lower dose offsets higher unit price)
- 25% fewer filter backwashes per day during flood season