CEN/TR 15463:2007 en

Karakterisering van slib - Fysische consistentie - Thixotropisch gedrag en stapelgedrag

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Status Definitief
Aantal pagina's 84
Commissie Anorganische parameters
Gepubliceerd op 01-04-2007
Taal Engels
The revision of the Sewage Sludge Directive 86/278/EEC, the upcoming Composting Directive on the biological treatment of biodegradable waste and the Soil Monitoring Directive call for standards on sampling, hygienic and biological parameters, methods for inorganic and organic contaminants, and for mechanical properties of these materials. In addition, when materials cannot be utilized, landfilling becomes important, in which case leaching becomes an issue as stipulated by the Council Directive 1999/31/EC on the landfill of waste. More recently, a Council Decision establishing criteria and procedures for the acceptance of waste at landfills, pursuant to Article 16 and Annex II of mentioned Directive on the landfill of waste was issued (16/12/02) with physical consistency being one basic parameter of interest. The "Horizontal" project has the objective to develop horizontal and harmonised European Standards in the fields of sludge, bio-waste and soil to facilitate regulation of these major streams in the multiple decisions related to different uses and disposal governed by EU Directives. Part of the work to be carried out will focus on co-normative work with an emphasis on horizontal standardization starting from existing standards developed for the same parameter in the fields of sludge, biowaste and soil. Another part of the work will focus on pre-normative research required to develop standards lacking at this point and needed in the next revision of the regulations in these fields. The work within the HORIZONTAL Project was coordinated in the Work Package 7 "Mechanical properties" and done in cooperation of the involved teams. It consists in the development of the Desk Studies on physical consistency mentioned above, because it is recognized that this property is very important for the characterization of sludge e.g., since it affects almost all treatment, utilization and disposal operations, such as storage, pumping, transportation, handling, land-spreading, dewatering, drying, landfilling. In fact, the selection of the most suitable equipment and procedure for land application, storage and transportation of sludge e.g. is strongly connected to its consistency. Similarly, compacting sludge in a landfill or forming a pile in composting is depending on sludge shear strength rather than on its solids concentration. In particular, with reference to the regulations requirements, according to the Sludge Directive 278/86, agricultural reused sludge should have agronomic interest, be healthy and easily usable, i.e. easily stored, transported, handled, and spread. In Council Directive 1999/31/EC


ICS-code 13.030.20
Nederlandse titel Karakterisering van slib - Fysische consistentie - Thixotropisch gedrag en stapelgedrag
Engelse titel Characterisation of sludge - Physical consistency - Thixotropic behaviour and piling behaviour



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