Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6355166 | Waste Management | 2014 | 6 Pages |
Abstract
Efficient composting process requires set of adequate parameters among which physical-chemical properties of the composting substrate play the key-role. Combining different types of biodegradable solid waste it is possible to obtain a substrate eligible to microorganisms in the composting process. In this work the composting of apple and tobacco solid waste mixture (1:7, dry weight) was explored. The aim of the work was to investigate an efficiency of biodegradation of the given mixture and to characterize incurred raw compost. Composting was conducted in 24Â L thermally insulated column reactor at airflow rate of 1.1Â LÂ minâ1. During 22Â days several parameters were closely monitored: temperature and mass of the substrate, volatile solids content, C/N ratio and pH-value of the mixture and oxygen consumption. The composting of the apple and tobacco waste resulted with high degradation of the volatile solids (53.1%). During the experiment 1.76Â kg of oxygen was consumed and the C/N ratio of the product was 11.6. The obtained temperature curve was almost a “mirror image” of the oxygen concentration curve while the peak values of the temperature were occurred 9.5Â h after the peak oxygen consumption.
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Authors
Nina KopÄiÄ, Marija VukoviÄ Domanovac, Dajana KuÄiÄ, Felicita BriÅ¡ki,