Module
Wastewater & Sludge Control
Control discharge and sludge from wet-processing against local law and the ZDHC Wastewater Guidelines.
Module details
Notice: Information is for educational reference only and is not legal advice. Always verify the current version of any standard, regulation or buyer requirement on the official source before acting.
ProfessionalStage: Wet processing
Roles
- Wet-Process Manager
- ETP Operator
- EHS Officer
Outcomes
- Discharge and sludge within legal limits and buyer expectations
- Deviations detected, contained and root-caused
Workflow
- 1.Confirm sampling plan aligned to local permit and ZDHC guidance
- 2.Sample, preserve and transport to an accredited laboratory
- 3.Review results against legal and guideline limits
- 4.Trigger investigation and containment on any exceedance
Evidence
Common failures
- Sampling on non-representative days
- Sludge disposal to unauthorised handlers
Escalation
- Exceedance of a legal limit → regulator notification per local law and immediate containment
KPIs
- % samples within limits
- Sludge disposed via authorised handlers (%)
Official sources
- ZDHC Wastewater Guidelines
Unified expectations for conventional parameters, restricted substances and sludge for textile, apparel and leather wet-processing facilities.
ZDHC Foundation · Voluntary standard · Jurisdiction: Global · Applies to: Wet-processing facilities discharging industrial wastewater and sludge.