Transfer of Escherichia coli in bioaerosols to humans during and shortly after the land application of farmyard slurry may pose human health hazards, but it has not been extensively explored to date. The present study developed a quantitative risk assessment model for E. coli through the air exposure route. The probabilistic model assessed the pred...
Manure treatment becomes a focal issue in relation to current EU and national policies on environmental, climate and renewable energy matters. The objective of this desk study was to collect all available data on the treatment of manure from cattle, pig and poultry farms for an overview of manure treatment in France. Specific surveys in 2008 showed...
Published in Bioresource technology
Solid state anaerobic digestion, with leachate recirculation, is suitable for exploiting manure with a high solid content. The biotic and abiotic effects of the leachates were studied in lab-scale leach bed reactors (LBRs). LBRs were fed with cow manure and four leachates either biologically active or inert. The biotic impact of leachate was assess...
Performances of batch mode solid state anaerobic digestion (SSAD) were investigated through several leachate recirculation strategies. Three parameters were shown to particularly influence methane production rates (MPR) and methane yields: the length of the interval between two recirculation events, the leachate to substrate (L:S) ratio and the vol...
This work aimed to demonstrate the feasibility of nitrification applied to the treatment of leachates formed during composting of cattle and pig manure in order to promote their further use as liquid fertilizer in horticulture. Nitrification trials were successfully conducted in summer and winter seasons under Mediterranean climate conditions. Subs...
The processes of fermentation of liquid manure and cosubstrate and the storage and distribution of the fermentation residues were investigated. Emissions of NH3, N2O and CH4 were quantified, and measures for optimizing the process stages and for emission reduction were investigated and analyzed. Other process stages which are potential emission sou...
The authors report about holistic treatment of manures. Themes of the 6 contributions are: lowering of emission of stock breeding, diminution of losses in N-fertilization, demonstration plant for treatment of fermented manures, ammonia-nitrogen stripping in a one container system, ammonia fertilization, agricultural using of biogas in Saxonia-Anhal...
Germany
Germany
The project was to provide detailed information on agricultural biogas in Bavaria, with the emphasis on emissions of biogas-fuelled CHP systems. The project comprised several phases: in phases 1 and 2, and enquiry was carried out by Landtechnik Weihenstephan represented by Fachverband Biogas e.V. Of the returned answers, 10 percent were selected re...
