90.93 Standard confirmed Dec 7, 2020
CEN
CEN/TC 308 Characterization and management of sludge
European Norm
13.030.20 Liquid wastes. Sludge
Published
The laboratory assessment of sludge dewaterability is sensitive to the operating procedure adopted for the conditioning step. No generalized ranking of products in order of effectiveness can be given since the ranking changes with the sludge type, dosage of conditioning agent, degree of shearing and dewatering device.
The scope of this European Standard applies for sludges and suspensions from:
- storm water handling;
- urban wastewater collecting systems;
- urban wastewater treatment plants;
- industrial wastewater that has been treated similarly to urban wastewater (as defined in Directive 91/271/EEC);
- water supply plants.
This method is applicable to sludge and suspensions of other origin.
WITHDRAWN
CEN/TR 14742:2006
PUBLISHED
EN 14742:2015
90.93
Standard confirmed
Dec 7, 2020
