Mineralenconcentraat als duurzame kunstmest?

Mineralenconcentraat uit verwerkte dierlijke mest wordt beoogd als een mogelijke kunstmestvervanger die boven de gebruiksnorm voor dierlijke mest toegediend mag worden. Dit zou niet alleen leiden tot kunstmest- en kostenbesparing, maar ook tot een verlaging van de milieubelasting door verminderde productie en gebruik van kunstmest met alle emissies van dien. Uit onderzoek blijkt dat bij gebruik van mineralen concentraat ongeveer een gelijke hoeveelheid kunstmest wordt gebruikt, vergeleken met de huidige praktijk

Kunstmestvervangers onderzocht; Levenscyclusanalyse (LCA) Mineralenconcentraten

Beknopt verslag van het onderzoek: "Mest van bedreiging naar kans". Na afronding zullen de resultaten laten zien hoe de milieubelasting verandert wanneer mineralenconcentraten als kunstmestvervanger aangemerkt zouden worden. De resultaten geven zicht op mogelijke ecologische knelpunten, afwenteling tussen processen en milieueffecten binnen de mestketen en geeft handvatten om tot een duurzamere keten te komen

Een sociolinguistische kijk op het taalgebruik van buitenlandse arbeiders

Contains fulltext : 3855.pdf (publisher's version ) (Open Access

Zijn vervangers van kunstmest duurzaam?

Binnen het onderzoek ‘Pilots mineralenconcentraten’ wordt een LevensCyclusAnalyse uitgevoerd. Na afronding zullen de resultaten laten zien hoe de milieubelasting verandert wanneer mineralenconcentraten als kunstmestvervanger aangemerkt zouden worden. De resultaten geven zicht op mogelijke ecologische knelpunten binnen de mestketen en handvatten om tot een duurzamere keten te komen

Employment status, job characteristics and work-related health experience of people with a lower limb amputation in the Netherlands

Objectives: To describe the occupational situation of people with lower limb amputations in The Netherlands and to compare the health experience of workings and nonworking amputee patients with a nonimpaired reference population. Design: Cross-sectional study in which patients completed a questionnaire about their job participation. type of job, workplace adjustments to their limb loss, their position in the company, and a general health questionnaire. Setting: Orthopsdic workshops in The Netherlands with a population of lower limb amputees. Patients: Subjects were recruited from orthopedic workshops in the Netherlands. They ranged in age from Is to 60 years (mean, 44.5yr) and had a lower limb amputated at least 2 years (mean, 19.6yr) before this study. Main Outcome measures: A self-report questionnaire, with 1 part concerning patient characteristics and amputation-related factors, and the other concerning job characteristics, vocational handicaps, work adjustments, and working conditions; and a general health questionnaire (RAND-36) to measure health status. Results: Responses were received from 652 of the 687 patients (response: rate, 95%) who were sent the questionnaire. Sixty-foul percent of the respondents were working at the rime of the study (comparable with the employment rate of the general Dutch population), 31 % had work experience but were not presently working, and 5% had no work experience. After their amputations, people shifted to less physically demanding work. The mean delay between the amputation and the return to work was 2.3 years. Many people wished their work was better adjusted to the limitations presented by their disability and they mentioned having problems concerning possibilities fur promotion. Seventy-eight percent of those who stopped working within 2 years after the amputation said that amputation-related factors played a role in their decision. Thirty-four percent said that they might have worked longer if certain adjustments had been made. The health experience of people who were no longer working was significantly worse than that of the working people with amputations. Conclusions: Although amputee patients had a relatively good rate of job participation, they reported problems concerning the long delay between amputation and return to work, problems in finding suitable jobs, fewer possibilities for promotion, and problems in obtaining needed workplace modifications. People who had to stop working because of the amputation showed a worse health experience than working people

LevensCyclusAnalyse (LCA) pilot mineralenconcentraten = Life Cycle Assessment (LCA) mineral concentrates pilot

This study assessed the change in the environmental impact of producing and using the end products, including mineral concentrate, from several pilot facilities as mineral fertilizer and substrate for anaerobic digestion. The LCA methodology was applied to assess the environmental consequences of four pig and dairy cattle slurry scenario’s. The scenarios were compared to a reference. Results showed that no mineral fertilizer was replaced in the scenarios. Without anaerobic digestion, no change in the environmental performance was observed for fattening pig slurry. Digestion reduced greenhouse gas emissions and fossil energy use. The sensitivity analysis showed higher ammonia and particulate matter emissions in all scenarios when processing more manure than only a surplus

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