Formulation of waste mixtures towards effective composting: A case study

• Type: Article in International Conference Proceedings Book
• Date: 2018

Authors

M. J. Fernandes (Author) Other; F. C. Pires (Author) Other; Joana Dias (Author) FEUP

Conference proceedings International

Title: WASTES - SOLUTIONS, TREATMENTS AND OPPORTUNITIES II

Pages: 245-250

4th International Conference on Wastes - Solutions, Treatments and Opportunities

Univ Porto, Fac Engn, Porto, PORTUGAL, SEP 25-26, 2017

Indexing

ISI Web of Knowledge - 0 Citations

Scopus

Other information

Authenticus ID: P-00P-NKT

Abstract (EN): The main objective of this study was to evaluate the potential of organic waste streams for composting. For that purpose, different blends were used, with prevalence of waste-water treatment sludge, considering: 30 or 50% sludge and 50 or 70% of other wastes such as corn silage, expired animal feed and biomass ash. Composting in turned piles of around 1 m(3) was performed. The process was monitored during 73 days. The obtained product was analyzed regarding physical, chemical, microbiological and phytotoxicity parameters. The best results were obtained using 50% sludge, 30% of wood chips, 5% of ash, 5% of animal feed and 10% of corn silage; however, high losses of heat occurred, hygienization temperatures were not reached and thus microbiological parameters weren't fulfilled. A class II type of material (Decree-Law No. 103/2015 on fertilizing materials) is expected to be obtained at a higher scale.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6