Fulvia Tambone

TL;DR: The results showed that digestates differed from ingestates and also from compost, although the starting organic mix influenced the digestate final characteristics, and appears to be a very good candidate to replace inorganic fertilizers, also contributing, to the short-term soil organic matter turnover.

TL;DR: The transformation of organic matter during anaerobic digestion of mixtures of energetic crops, cow slurry, agro-industrial waste and organic fraction of municipal solid waste was studied by analysing different samples at diverse points during the anaer aerobic digestion process in a full-scale plant.

TL;DR: Digestate and derived products, because of high biological stability acquired during the AD, had greatly reduced olfactometry impact, above all when they were injected into soils, and ammonia emission data indicated that the correct use of digestate andderived products required their injection into the soil avoiding, ammonia volatilization into the air and preserving fertilizer value.

TL;DR: The DRI can be proposed as a useful method to measure the biological stability of organic wastes, and DRI values, calculated as a mean of 24 h of the highest microbial activity, of 1000 and 500 mg O(2) kg(-1) volatile solids (VS) h (-1) are proposed to indicate medium and high biological stabilities, respectively.

TL;DR: Dynamic Respiration Index (DRI) was chosen in preference to other indices in order to assess the degree of biological stability of the end products and is in agreement with the proposed limit of 1000+/-200 mg O2 kg SV(-1) h(-1).