Wastewater and Sludge Guidelines
Version 2 - Last updated
06 Aug 2026
This is the new version of Wastewater & Sludge Guidelines
This version (V2) is published and available to prepare for. It will replace the active version (V1) and take effect from 06 Aug 2026. Until then, continue using Wastewater & Sludge Guidelines V1. View Changelog
Wastewater and sludge quality management ensures the effective identification, monitoring and control of pollutants throughout production processes.
It contributes to cleaner water systems, reduces environmental impact, and supports the transition to more sustainable and responsible manufacturing.
There are four requirements for wastewater and sludge:
1
Sample and test sludge, and document sludge disposal routes
Wastewater is tested and managed in accordance with the ZDHC Wastewater and Sludge Guidelines
2
Sample, test and document sludge
Sludge is tested and managed in accordance with the ZDHC Wastewater and Sludge Guidelines
3
Conduct a RCA/CAP for non-conformities
A root cause analysis is conducted and a corrective action plan is prepared for non-conformities identified during wastewater and sludge testing
4
Fibre fragmentation
Fibre fragmentation discharge in wastewater is monitored