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BSI
BS EN 14742:2015

BS EN 14742:2015

Current

Current

The latest, up-to-date edition.

Characterization of sludges. Laboratory chemical conditioning procedure

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-04-2015

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Procedure
7 Test report
8 Precision
Annex A (informative) - Results of Validation trials
Annex B (informative) - Examples for mixing devices
        for chemical conditioning procedure
Annex C (informative) - Example of table summarizing
        the operating conditions and the results of
        the characterization tests
Bibliography

Pertains 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.

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.

Committee
EH/5
DevelopmentNote
Supersedes 12/30257940 DC. (05/2015)
DocumentType
Standard
Pages
24
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
EN 14742:2015 Identical

EN 15935:2012 Sludge, treated biowaste, soil and waste - Determination of loss on ignition
EN 15933:2012 Sludge, treated biowaste and soil - Determination of pH
EN 12880:2000 Characterization of sludges - Determination of dry residue and water content
EN 12832 : 1999 CHARACTERISATION OF SLUDGES - UTILISATION AND DISPOSAL OF SLUDGES -VOCABULARY
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method

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Hardcopy - English
PDF - English
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