Essays about: "Volatile fatty acid"

Showing result 1 - 5 of 14 essays containing the words Volatile fatty acid.

  1. 1. Volatile fatty acid production from co-fermentation of primary sludge and food waste without pH control

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Binyam Bedaso; [2019]
    Keywords : Volatile fatty acid; Co-fermentation; Primary sludge; Food waste;

    Abstract : The production of volatile fatty acids (VFAs) from waste stream is gaining high attention because of their high market value and wide range of applications. In this study, the production of VFA from co-fermentation of primary sludge from wastewater treatment plant and food waste without pH control was evaluated using a pilot-scale reactor in a semi-continuous mode of operation. READ MORE

  2. 2. Pre-acidification of a Synthetic Dairy Wastewater in Continuously Stirred Tank Reactors

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Can Xiong; [2019]
    Keywords : pre-acidification process; hydraulic retention time; soluble chemical oxygen demand transformation into fermentation product; volatile fatty acids; distribution; water engineering; environmental engineering; vattenförsörjningsteknik; avloppsteknik; Earth and Environmental Sciences; Technology and Engineering;

    Abstract : Two-stage anaerobic digestion is considered as a sustainable and efficient way to deal with dairy effluent, and is commonly applied. The pre-acidification happening during the first stage of this process could be used to buffer the complex conditions in the initial dairy effluent, as well as produce intermediary product such as volatile fatty acids (VFA), and it is essential to be controlled. READ MORE

  3. 3. Anaerobic degradation of volatile fatty acids in continuous biogas reactors at very short hydraulic retention times.

    University essay from Lunds universitet/Teknisk mikrobiologi; Lunds universitet/Bioteknik

    Author : Anna Lea Auguste Weimer; [2019]
    Keywords : Anaerobic digestion; hydraulic retention time; organic loading rate; biogas; applied microbiology; teknisk mikrobiologi; Technology and Engineering;

    Abstract : There is an increasing demand for safe, affordable and above allsustainable energy, due to the exhaustion of fossil fuels and increasing greenhousegas emissions. In this context, anaerobic digestion is of growing interest, as it enablesthe production of the versatile renewable energy source biogas from various types oforganic wastes. READ MORE

  4. 4. Magsår hos högpresterande hästar : inverkan av utfodring och träning

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Hanna Bjarnestig; [2018]
    Keywords : diet; häst; magsår; motion; träning; tävling;

    Abstract : Magsår hos högpresterande hästar är vanligt förekommande. Det uppstår när pH i magsäcken är lågt, buffertkapaciteten inte är tillräckligt hög och slemhinnan inte är tillräckligt skyddad från den sura miljön. READ MORE

  5. 5. Biohydrogen and Volatile Fatty Acids Production form Food Waste Hydrolysate

    University essay from Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Author : Yaswanth Lingam; [2018]
    Keywords : Biohydrogen; Food waste; volatile fatty acids; acetic acid; wastewater;

    Abstract : This work focused a pH readjustment strategy has been applied for the enhancement ofbiohydrogen production form food waste hydrolysate in a semi-pilot scale bioreactor seededwith selectively enriched mixed microbial culture. Different initial pH (pH 6, pH 7, and pH8) was selected for biohydrogen production from FW. READ MORE