Sökning: "organic loading rate"

Visar resultat 16 - 20 av 39 uppsatser innehållade orden organic loading rate.

1. 16. The effects of trace elements on the microbial communities of thermophilic biogas production

   Master-uppsats, SLU/Dept. of Microbiology

   Författare :Robin Hagblom; [2016]
   Nyckelord :biogas; thermophilic; trace elements; ammonia; SAO; fhs;

   Sammanfattning : The increasing need for alternatives to fossil fuels and traditional waste management systems can be simultaneously addressed by the production of biogas using organic waste as input material. The biogas produced can be used directly for energy production or upgraded to increase methane purity for use in the engines of motor vehicles. LÄS MER

3. 17. Evaluation of the suppressive effect of intermittent aeration on nitrite-oxidising bacteria in a mainstream nitritation-anammox process

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Luft-, vatten- och landskapslära

   Författare :Amanda Okhravi; [2015]
   Nyckelord :Activity tests; anammox; AOB; Manammox; nitritation; NOB; OUR.; Aktivitetstester; anammox; AOB; Manammox; nitritation; NOB; OUR.;

   Sammanfattning : An alternative to conventional removal of nitrogen through autotrophic nitrification and heterotrophic denitrification is autotrophic nitritation-anammox. The anammox bacteria oxidise ammonium directly to nitrogen gas with nitrite as an electron acceptor. LÄS MER

4. 18. Startup and stabilization of anaerobic membrane bioreactors at ambient temperature

   Master-uppsats, Lunds universitet/Kemiteknik (CI)

   Författare :Carlos Benito Peña; [2015]
   Nyckelord :environmental engineering; water engineering; Anaerobic; AnMBR; Membrane; Technology and Engineering;

   Sammanfattning : There has been an increasing interest in wastewater treatment in last decades to reduce human footprint. Primarily, anaerobic technology focused on treatment and stabilization of sludge, but now the tendency is to give it a major role in low cost treatment of high/low strength wastewaters, since anaerobic digestion offers energy generation through gas production. LÄS MER

5. 19. Stable increase of organic loading rate in anaerobic membrane bioreactors working at ambient temperature

   Master-uppsats, Lunds universitet/Kemiteknik (CI)

   Författare :Jean Monhonval; [2015]
   Nyckelord :environmental engineering; anaerobic membrane bioreactor; stability indicators; ambient methanization; stable increase organic loading rate; vattenförsörjningsteknik; avloppsteknik; water engineering; Technology and Engineering;

   Sammanfattning : Anaerobic processes are an interesting alternative to treat wastewaters instead of aerobic treatments as it allows recovery of energy with the produced biogas while removing organic matter. In the industry, lots of low-strength industrial wastewaters are available and unused for biogas production due to their low concentration of organic material and high volumes (slaughterhouse wastewaters, dairies and beverages industries, oils and fats producers). LÄS MER

7. 20. Production and biodegradability of dissolved organic carbon from dIfferent litter sources

   Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

   Författare :Carlos Arellano; [2015]
   Nyckelord :biogeochemical cycles; physical geography and ecosystem analysis; dissolved organic carbon; carbon cycle; soil biogeochemistry; Earth and Environmental Sciences;

   Sammanfattning : The movement of carbon on Earth is based on exchange between pools that represent carbon in different physical forms, differing in chemical composition, structure and function. Dissolved organic carbon plays an important role in ecosystems because of its mobility, which can be relatively high in saturated soils, and because it is the most available fraction of organic matter for microorganisms in soil, being particularly active in microbial degradation processes through soil profile. LÄS MER