CEN/TS 13714:2013

SLOVENSKI STANDARD
01-september-2013
1DGRPHãþD
SIST-TP CEN/TR 13714:2010
Karakterizacija blata - Ravnanje z blatom pri uporabi ali odlaganju
Characterization of sludges - Sludge management in relation to use or disposal
Charakterisierung von Schlämmen - Management von Schlamm zur Verwertung oder
Beseitigung
Caractérisation des boues - Gestion des boues en vue de leur valorisation ou de leur
élimination
Ta slovenski standard je istoveten z: CEN/TS 13714:2013
ICS:
13.030.20 7HNRþLRGSDGNL%ODWR Liquid wastes. Sludge
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION
CEN/TS 13714
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
July 2013
ICS 77.060; 93.140 Supersedes CEN/TR 13714:2010
English Version
Characterization of sludges - Sludge management in relation to
use or disposal
Caractérisation des boues - Gestion des boues en vue de Charakterisierung von Schlämmen - Management von
leur valorisation ou de leur élimination Schlamm zur Verwertung oder Beseitigung
This Technical Specification (CEN/TS) was approved by CEN on 27 August 2012 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 13714:2013: E
worldwide for CEN national Members.

Contents Page
Foreword . 4
Introduction . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 7
4 Waste hierarchy . 8
4.1 General . 8
4.2 Context . 9
5 Management of sludge quality - Upstream processes . 9
5.1 General . 9
5.2 Municipal wastewater sludges . 9
5.3 Setting limits for discharges from industrial and commercial premises to municipal
sewers . 10
5.4 Other factors . 10
5.4.1 General . 10
5.4.2 Protection of biological municipal wastewater treatment processes . 11
5.4.3 Protection of biological sludge treatment processes. 11
5.4.4 Protection of environmental quality in the receiving watercourse . 11
5.4.5 Protection of sewer fabric . 11
5.4.6 Protection of sewer maintenance workers. 11
5.5 Minimising contamination including diffuse sources in municipal wastewater . 11
6 Sludge management . 12
6.1 Measures upstream of water and wastewater treatment facilities . 12
6.1.1 Source prevention . 12
6.1.2 Source reduction . 12
6.2 Measures at sites of sludge production and processing . 12
6.2.1 Water and Wastewater treatment processes . 12
6.2.2 Sludge treatment . 12
6.3 Solutions for recycling recovery and disposal . 14
6.3.1 General . 14
6.3.2 Application to land (see CEN/TR 13097 [16] and CEN/TR 13983 [17]) . 14
6.3.3 Other uses . 14
6.3.4 Energy recovery . 14
6.3.5 Component recovery . 15
6.4 Disposal . 15
7 Operational good practices . 16
7.1 General . 16
7.2 Upstream of the sludge production site . 16
7.2.1 General . 16
7.2.2 Communication process between all participants upstream of the sludge production . 16
7.2.3 Sewerage system structure improvement and maintenance . 16
7.3 At the sludge production site . 17
7.3.1 General . 17
7.3.2 General guidelines for operations . 17
7.3.3 Storage . 17
7.3.4 Site access . 18
8 Strategic evaluation of options and links with the other good practice documents . 18
8.1 General .1 8
8.2 Sludge quantity assessment.1 8
8.3 Sludge quality . 18
8.4 Developing a strategy for sludge use/disposal .1 9
Annex A (informative) Best Practicable Environmental Option for sludges use or disposal . 20
Annex B (informative) Environmental checklist .2 1
Bibliography .2 3

Foreword
This document (CEN/TS 13714:2013) has been prepared by Technical Committee CEN/TC 308
“Characterization of sludges”, the secretariat of which is held by AFNOR.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes CEN/TR 13714:2010.
This document gives recommendations for good practice, but existing national regulations remain in force.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Croatia, Cyprus,
Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Introduction
The purpose of this Technical Specification is to outline the management of sludges both upstream and
downstream of the treatment process to ensure that it is suitable for the outlets available. Sludge is the
inevitable residue of treating raw potable water and municipal and industrial wastewaters. This Technical
Specification refers to all types of sludge covered by CEN/TC 308 including sludges from treating industrial
wastewater similar to urban wastewater and from water supply treatment work plants. In considering the likely
quality of sludges, it should be remembered that municipal wastewater sludges are composed of materials
that have already been disposed of and are consequently likely to be more variable than many industrial
sludges that arise from sourced materials or water treatment sludges arising from surface water or
groundwater.
The quality of the sludge should match the requirements of the outlets whether that be to land, thermal
processing or as a last resort landfill. As a general rule a high quality sludge is likely to be acceptable to a
large range of outlets giving greater operational flexibility. High quality sludges are likely to be suitable for
those outlets associated with maximum sustainability and minimum environmental pollution. The management
of sludges will become increasingly more complex as environmental standards become more stringent and if
outlets become more constrained by legislation and public attitudes.
Sludge quality is central to the development of good practice for sludge production in relation to its destination
(use or disposal). Sludge quality depends on the composition of the upstream materials and the type of
treatment including post treatment storage.
Sludge quality can be characterised by its different properties; biological, chemical and physical:
a) biological properties include the microbiological stability of the organic matter in the sludge, odour and
hygienic characteristics;
b) chemical properties include:
1) content of potentially toxic substances (PTSs) which include inorganic (metals, metalloids, and other
minerals), and organic pollutants;
2) concentrations and form (availability) of plant nutrients and the main components of the sludge;
c) physical properties include whether liquid, semi-solid (pasty-like) or solid, and aesthetic factors
associated for instance with removal of unsightly debris by effective screening. Calorific value is a quality
criterion if the sludge is to be incinerated or used as a fuel. Other physical properties include,
thickenability and dewaterability.
The consistency of these different properties is a critical aspect of the sludge quality and of the ability to
determine its end destination (use or disposal).
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