Paper details

Title:

Digestate from Biowaste: Stability Evaluation of New Fertilizing Materials

Author(s):

Sinisgalli, E., Garuti, M., Soldano, M., Piccinini, S.

Document(s):

Abstract:

The rise of energy costs, the scarcity of raw material supplies and the weaknesses of the production system lead to a higher demand for fertilizer materials. With the entry into force of the new Fertilizer Products Regulation (FPR) 2019/1009, the European market for diverse organic fertilizers and its components aims to harmonize the quality of these products and its production processes. Digestates obtained through anaerobic digestion of the organic fraction of municipal solid waste (OFMSW or biowaste) belong to a category of constituent materials which, according to the Regulation, must comply at least one of the two stability criteria indicated: the oxygen uptake rate (OUR) or the residual biogas potential (RBP). In this work, the results of both stability criteria were carried out on digestate samples from seven real scale integrated biowaste treatment plants, to assess compliance with the limits specified in the Regulation and to investigate the meaning and any relation between the two criteria.

Keywords:

anaerobic digestion, digestate, biowaste, OFMSW, stability, fertilizers

Topic:

Sustainable Resources for Decarbonising the Economy

Subtopic:

Municipal and industrial wastes

Event:

31st European Biomass Conference and Exhibition

Session:

1CO.4.2

Pages:

97 - 100

ISBN:

978-88-89407-23-3

Paper DOI:

10.5071/31stEUBCE2023-1CO.4.2

Price:

FREE