A Success Story on Effluent Management
During the first half of the year, one of our major sites was found
to have lead contamination in the raw waste water and sludge
that exceeded the permissible ZDHC limits.
Rapid action was taken
as a result to ensure compliance prior to testing within the next
six month period. A dedicated project team was initiated, and
through extensive testing of 384 dyes, chemicals and waste water,
using a mass balancing approach, coagulents used in the effluent
treatment were identified as the root cause of lead contamination.
Testing revealed presence of lead in 124 dyes and chemicals. Our
successful corrective action to resolve this issue was to introduce
food grade chemicals in our process, and the site has since been
regularly tested and is consistently within limits.
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