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jämförelse av befintlig pastörisering med integrerad termofil hygienisering på Kungsängens gårds biogasanläggning i Uppsala
… 4.4 million Nm3 of biogas were produced from 25 200 tons of waste. Before digestion all substrate is sanitized by pasteurization at 70°C in order to kill pathogens. Another method, integrated thermophilic sanitation (ITS), is of interest in order to decrease the energy demand …
… Borås Energi is prepared and the biological waste is treated through anaerobic digestion. One important part of the study has been to collect experience-based knowledge from the technical staff at Sobacken and Borås Energi. This information was compiled into an overview of …
… is a renewable energy source which is produced through anaerobic (oxygen free) digestion of organic material. The gas is a mixture of methane (CH4) and carbon dioxide (CO2) and can be among others used as fuel in vehicles. Greengas is biogas produced from grains. The aim with …
… be favorable to try grasses from wetlands in methane production, because co-digestion with these grasses and other suitable materials could produce a higher net gas yield for the plant, than using the materials solely by themselves. The derived biogas potential showed that there …
… one possible way in dealing with today’s substrate shortage. The mesophilic co-digestion has been performed in lab scale, where seven glass bottles (800ml) have served as digesters. Several analyses of important parameters i.e. gas production and composition …
- En analys av den kommunala hanteringen i Sverige samt en detaljstudie av förhållandena i Umeå kommun
… method for large-scale treatment of food waste.Incineration and anaerobic digestion are about equal in their environmental impact, but thelatter was found to be favorable in principle based on the fact that it, in theory, generates bothnutrient recycling and energy recovery. For …
Swedish biogas is currently produced mainly by anaerobic digestion of sewage sludge at sewage treatment plants, landfills and anaerobic digestion of household or industrial waste. Also cattle ma-nure from farms can be used to produce biogas. Upgrading biogas represents an …
jämförelse av befintlig pastörisering med integrerad termofil hygienisering på Kungsängens gårds biogasanläggning i Uppsala
… 4.4 million Nm3 of biogas were produced from 25 200 tons of waste. Before digestion all substrate is sanitized by one hour’s pasteurization at 70°C in order to kill pathogens. Another method, integrated thermophilic sanitation (ITS), is of interest in order to decrease the …
… glucose assay was optimised for use in small samples of brain lysate after the digestion of trehalose into glucose by trehalase, and the difference in glucose concentration before and after digestion represented the trehalose level. No significant differences were detected …
Substratkartläggning och rötningsförsök i laboratorieskala
… resources in renewable energy sources. Biogas production through anaerobic digestion is one of those growing energy sources. In Sweden there are over two hundred plants that uses this biological process to break down organic substances while producing carbon dioxide and the …
effekter på våmmetabolismen
… Glycerol appeared to be readily absorbed from the rumen and while the digestion rate of glycerol in the rumen was low. The rumen micro flora apparently did not adapt to glycerol since the rate of glycerol digestion was not affected when the coes were fed glycerol for two weeks …
En problematiserande analys om grundskolans relationer till omvärlden, utifrån tre identifierade områden, med biogas som ett praktiskt exempel.
I detta arbete används biogasprocessen som ett exempel på hur ett samhällsrelaterat vetenskapligt område kan lyftas in i skolans naturvetenskapliga undervisning. Vi har arbetat fram en laboration om biogas och givit förslag på hur en sådan kan användas direkt i skolan …
… This allows them to feed in small portions, which is advantageous for the digestion. Foals should eat about 2 kilo concentrates at the time of weaning in order to avoid a growth depression because of low nutrient intake. A survey was also made among horse breeders and how they …
The coproduct, dried distillers grains + solubles (DDGS) from ethanol production based on wheat contains much rumen degradable protein and fiber with low digestibility. To compliment this quality in an effective way a grass silage low in protein and much digestible fiber is …
The purpose of this study was to investigate how the content of glucose, fructose, sucrose and fructan (WSC) varied in silage, haylage and hay harvested from the same field and at the same time of harvest. The study also investigated if differences in the WSC-fraction in the …
