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Published by Prakasam Tata, Executive Director, Center for Transformation of Waste Technology
Search Labs | AI Overview
This is the answer from Google search.
Concrete washwater, specifically from the washing of concrete mixing equipment, is typically
highly alkaline , with a pH value ranging from 11 to 12+ . Some sources even cite a pH as high as 12.9. This high pH is attributed to the presence of cement, which has a natural alkalinity.
Important Considerations:
- This high pH is problematic for the environment and can harm aquatic life if discharged into water bodies.
- Proper management systems are implemented to reduce the pollutants associated with this high pH washwater.
- Treatment methods, such as using carbon dioxide, can be employed to neutralize the washwater and lower its pH to acceptable levels for discharge.