Brongerichte maatregelen voor beperking emissies uit bestaande varkensstallen

The coalition Vitalization of pig farming has taken the initiative, with the provinces and LNV, for a source-oriented sustainability improvement of pig houses. The objective is that harmful emissions from pig houses are prevented as far as possible directly from the source and integral. This report provides insight into the points of application and the measures that can be taken to reduce emissions integrally at the source in existing housing for the different categories of pigs. The perspective of possible measures, the impact on emissions and the possibility of combining measures, possibly with end-of-pipe solutions, are indicated. In addition, insight is provided into current initiatives in this field in the Netherlands and abroad

Warmte- en CO2-productie van trager groeiende vleeskuikens

In this report the heat and carbon dioxide (CO2) production of slow growing broilers is estimated

Vooronderzoek naar de emissies van lachgas, ammoniak, methaan en aerosolen uit een mestbeluchtingsunit

A preliminary study was conducted into the emissions of N2O, NH3, CH4 and aerosols at two manure aeration treatment plants. Aim of the study was to determine to what extent harmful substances can emit from an aeration unit for the production of ammonia and odour-free liquid. Measurements were done according the dynamic box method for determining the emissions of gases and concentration measurements were carried out for aerosols (bacteria and endotoxins). It was determined that the emissions of ammonia were virtually zero (measured 0.087 g per m3 manure). Greenhouse gas emissions (CH4 and N2O) were also low and barely measurable in our measurement setup. Based on our measurements, the emission can vary between 0 and 39 g CO2 equivalents per m3 of slurry. For fattening pigs, a total CO2 footprint of 1 700 kg CO2 equivalents per animal place is assumed. Also,concentrations of bacteria E Coli, Enterococcus, and Sulphide reducing Clostridia (SSRC) were below (E Coli and Enterococcus) detection limit or low (SSRC). Endotoxin concentrations above the surface of the aeration tank were scarcely higher than the advice value for outside air of 30 EU/m3

Analyse beschikbare technieken voor integrale emissiereductie in varkensstallen

Due to the urgency to reduce nitrogen emissions and deposition, a good picture of the timeline for implementation of low-emission housing is needed. In this report we discuss innovations in pig houses. This concerns pig houses that achieve an integral emission reduction through source-oriented measures or through a combination between source-oriented and end-of-pipe. This means that not only ammonia emissions should be reduced, but also emissions of greenhouse gases (especially methane), odour and particulate matter. It concerns promising measures that are or will be available for pig farmers in the coming years

Opties voor ammoniakreductie in stallen voor biologische varkens

A table was composed with options for ammonia reduction from organic pig houses. Compared to the present situation, it is important to prevent pen fouling and to reduce emissions from the manure pit. The different options show potential reductions of ammonia emission varying from approx. 20 to 55%

Life Cycle Assessment of Segregating Fattening Pig Urine and Feces Compared to Conventional Liquid Manure Management

Gaseous emissions from in-house storage of liquid animal manure remain a major contributor to the environmental impact of manure management. Our aim was to assess the life cycle environmental consequences and reduction potential of segregating fattening pig urine and feces with an innovative V-belt system and to compare it to conventional liquid manure management, that is, the reference. Moreover, we aimed at analyzing the uncertainty of the outcomes related to applied emission factors. We compared a reference with two scenarios: segregation with solid, aerobically, stored feces and with liquid, anaerobically, stored feces. Results showed that, compared to the reference, segregation reduced climate change (CC) up to 82%, due to lower methane emission, reduced terrestrial acidification (TA) and particulate matter formation (PMF) up to 49%, through lower ammonia emission, but increased marine eutrophication up to 11% through nitrogen oxide emission from storage and nitrate leaching after field application. Fossil fuel depletion did not change. Segregation with liquid feces revealed lower environmental impact than segregation with solid feces. Uncertainty analysis supported the conclusion that segregating fattening pig urine and feces significantly reduced CC and additionally segregation with liquid feces significantly reduced TA and PMF compared to the reference

Data and R code for the paper Black soldier fly reared on pig manure: bioconversion efficiencies, nutrients in the residual material, greenhouse gas and ammonia emissions

The study consisted on quantifying and comparing nutrient balances, nutrient levels in residual materials and emissions of greenhouse gases and ammonia between manure incubated with black soldier fly larvae (BSFL) and manure without BSFL, during a 9-day experimental period.<br

Data and R code for the paper Black soldier fly reared on pig manure: bioconversion efficiencies, nutrients in the residual material, greenhouse gas and ammonia emissions

The study consisted on quantifying and comparing nutrient balances, nutrient levels in residual materials and emissions of greenhouse gases and ammonia between manure incubated with black soldier fly larvae (BSFL) and manure without BSFL, during a 9-day experimental period.<br