Comparison of municipal solid waste characteristics after separation by star and drum screen systems
2013
Arina, D., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Rural Engineering | Balodis, J., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Rural Engineering | Janpaule, I., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Rural Engineering | Normand, M., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Rural Engineering
The research provides the results of experimental work in the waste mechanical pre-treatment in Latvia. The goal is to detect and to compare the composition and main parameters of sorted waste components after separation by the star screen and drum screen systems. Samples were taken in three fractions - coarse, medium, fine from the star screen system and coarse and fine from the drum screen system. The parameters – upper, lower heating values, moisture, ash content, S and Cl were determined. Results - the waste content of the fine fraction after the star screen system pre-treatment has less additional material, than after the drum screen system pre-treatment. The coarse fraction after the star screen system pre-treatment contains high calorific energy raw materials for the production of alternative energy materials. However this fraction needs an additional separation if the drum screen system pre-treatment is used for it. The same is necessary for the medium fraction after the star screen system pre-treatment.
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