Description of the work in HORIZONTAL
The work is split up in coherent Work Packages (WP), which each address a main aspect of all relevant standards required in the Sludge, Biowaste and Landfill Directives. This has been done to make this work involving many contributors manageable. The first phase of the work consists of desk studies on all sub topics. After consultation with relevant CEN and ISO bodies and agreement in the Steering Committee, the next phase of the work consisting of experimental work and validation work will be started. This stage is expected to start in October 2003. The consortium taking on the project is very well embedded in the relevant CEN and ISO TC's, WG's and TG's through their membership of such standardisation bodies and thus provide an excellent basis for subsequent implementation of the deliverables.
Desk studies will be prepared for the following topics:
- sampling of sludge, treated biowastes and soils in the landscape
- enumeration of E.coli, Salmonella, Enterococci Clostridium perfringens, and viable helminth ova in sewage sludge and bio-waste and comparable matrices;
- physical impurities in treated biowaste, weed seeds and plant propagules, the stability of treated biowaste (respiration method);
- determination of AOX, PCB, PAH, Linear AlkylSulfonates (LAS), NonylPhenol (NP) and endocrine disrupters like phthalates and compounds such as Di-ethylhexylphthalate (DEHP) and Dibutylphthalate (DBP);
- pH, dry matter/moisture content , organic matter/loss on ignition, total nitrogen, ammonium nitrogen, total phosphorus; extraction of trace elements and determination of trace elements from acid digested samples;
- flowability, solidity, thixotrophy, stacking behaviour;
- leaching of sludge, treated biowastes and soils