Abstract Different strategies for sewage sludge management have been implemented to minimize the environmental impacts and benefit from resources embedded in this waste stream. In that regard, Hydrothermal treatments (HTTs) of biomass can contribute generating high-value products (hydrochar) enhancing biogas generation. work, different were analysed implementing HTTs at WWTPs considering effect...

Atmospheric nitrous oxide contributes directly to global warming, yet models of the nitrogen cycle do not account for bedrock, largest pool terrestrial nitrogen, as a source oxide. Although it is known that release rates from bedrock are large, there an incomplete understanding connection between bedrock-hosted and atmospheric Here, we quantify fluxes mass balances at hillslope underlain by mar...

Designing tools that aim at a sustainable management of waste and organic residues requires a good knowledge of the available sources and their use potential. Resulting choices should consider localisation of these sources and of the sinks capable of absorbing them. Absorptive capacities of such sinks like crops may vary in space and time as a function of their nutritional requirements. Positio...

Ammonia (NH3) emissions originate predominantly from manure. In outdoor pig production, excretory behaviour creates nitrogen (N) point loads. This study examined ammonia losses from pigs on grassland at two farms by calculating N field balances per pen and sub-areas preferred (P) and not preferred (NP) for excretion. Spatial variation in ammonia losses was measured with an equilibrium concentra...

Abstract Emissions of reactive nitrogen (N r ) give rise to a wide range environmental problems. Nitrogen budgets for various systems and on different scales are an established tool quantify the sources fate N . The national budget (NNB) Germany calculates flows eight pools: Atmosphere, Energy Fuels, Material Products in Industry, Humans Settlements, Agriculture, Forest Semi-natural Vegetation,...