Institut für Abfall, Abwasser und Infrastruktur-Management GmbH  Beckumer Str. 36  Ahlen  QUO VADIS WP 7 - Biological Parameters Prof. Dr.-Ing. Sabine Flamme 14. December 2006, Ispra

Tasks Carry out biomass content determination using different methods of the Final Draft of the prCEN/TS „Solid recovered fuels - Methods for the determination of biomass content“. Manual Sorting of SRF material and determination of the biomass content in percent by weight Selective dissolution tests with different (reference) SRF materials, Determination of the biomass content in percent by weight percent by calorific value percent by total organic carbon content

Status Quo of the Work Package Comparison of Manual sorting method and selective dissolution test with Solid recovered fuel samples from municipal solid waste are finished Calculation of the biomass content with manual sorting as defined in the CEN Draft / with variances in the classification Determination of water content, TC, ignition lost, calorific value of single fractions Comparison with results of the selective dissolution test in percent by weight / percent by calorific value / percent by total carbon content Determination of the biomass content of different SRF-Materials has continued First samples for the homogeneity tests for the round robin material arrived Homogeneity will be tested on a mass-related base   

Working plan for further investigations - Summary Ruggedness tests SRF-Material (WP 4): Soft pellets - Hard pellets - SRF-Samples different grain sizes (2 mm, 1 mm, 0,5 mm) Reductionistic Method - shall be under examination by using the data that were necessary for the converted SRF-Sample Additional Material: Tyre Samples < 1 mm Round Robin Materials from IRMM, homogeneity tests for biomass content Same laboratories as for the chemical parameters   ()()    

Intermediate results - Selective dissolution test (1) Biomass content in Hard Pellets

Intermediate results - Selective dissolution test (2) Biomass related carbon content in Hard Pellets

Intermediate results - Selective dissolution test (3) Calorific value related biomass content in Hard Pellets

Intermediate Results: Selective dissolution test (4)

Intermediate Results - Résumé  Selective dissolution test Remaining residue is clearly less homogeneous than the crushed sample before selective dissolution Mass-based biomass fraction  all in all good results Carbon-based biomass fraction  Result of the TC-determination (especially of the residue) has a great influence on the result of the biomass related TC- content  appropriate accuracy is to demand (depending on the TC-analyser higher amounts of sample material or appropriate repeated determinations are necessary) Calorific value based biomass fraction  calorific value has to be determined with an appropriate accuracy (especially of the residue) to generate sufficient residue for the determination of the calorific value, often means to dissolute higher amount of sample material (great expenditure)