Essays about: "anaerobic degradation"

Showing result 1 - 5 of 41 essays containing the words anaerobic degradation.

  1. 1. Isolation of an ammonia-tolerant syntrophic butyrate-oxidizing bacterium originating from a thermophilic biogas digester

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Malin Tiefensee; [2023]
    Keywords : thermophilic; ammonia-tolerant; syntrophic butyrate-oxidizing bacterium;

    Abstract : Syntrophic relationships between fatty acid degrading bacteria and hydrogenotrophic methanogens are important for a well-functioning anaerobic degradation process during biogas production from organic waste material. This is particularly important in biogas processes fed protein-rich material as their degradation gives rise to high levels of ammonia, which inhibits many microorganisms. READ MORE

  3. 2. Anaerobic digestion in continuous stirred tank reactors and plug flow reactors: : Comparison study concerning process performance

    University essay from KTH/Kemiteknik

    Author : Zeko Kocak; [2022]
    Keywords : Anaerobic digestion; municipal waste; continuous stirred tank reactor; plug flow reactor; biogas; Anaerob rötning; kommunalt avfall; kontinuerlig omrörd tankreaktor; pluggflödesreaktor; biogas;

    Abstract : Användningen av kommunalt avfall för att producera förnybar energi, huvudsaklig biogas, uppfyller 8 av Sveriges 16 miljökvalitetsmål. Två typer av rötningsprocesser som används är kontinuerligt omrörda tankreaktorer (CSTR) och pluggflödesreaktorer (PFR). READ MORE

  4. 3. Investigation into the Removal of the By-product NDMA (N-Nitrosodimethylamine) from Ozonation Process in Wastewater Treatment

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Zehao Li; [2021]
    Keywords : Water resources engineering; Ozonation; NDMA; Wastewater; pharmaceutical; Diclofenac; Ibuprofen; Naproxen; Technology and Engineering;

    Abstract : In people’s modern life, daily usage of artificial compounds such as active pharmaceuticals ingredients (API) is usual. These compounds are likely to end up as micropollutants in the municipal wastewater. Municipal wastewater is the major source of pharmaceuticals in the aquatic environment. READ MORE

  5. 4. Anaerobic Co-digestion of steam pretreated wheat straw and sewage sludge

    University essay from Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)

    Author : Virginia Tosi; [2021]
    Keywords : Anaerobic co-digestion; wheat straw pretreatment; nutrients availability; OLR; VFA acumulation; Biotechnology; Technology and Engineering;

    Abstract : Anaerobic digestion (AD) of wastes and residues is a widely applied and explored process. However, when the process is not optimized, inadequate concentrations of nutrients and inhibitory compounds are common and can lead to low maximum organic loading rates and increased risk of process problems, low organic dry solids degradation rate and reduced methane yields. READ MORE

  6. 5. Enhancement of hydrolysis from co-fermentation of food waste and primary sludge

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Johnny Hagelin; [2021]
    Keywords : Environmental engineering; Bioaugmentation; Fermentation; Hydrolysis; Resource recovery;

    Abstract : Research about resource recovery from complex waste streams is getting an increased scientific attention since valuable resources can be produced by sustainable biological means. In anaerobic degradation processes, resources such as volatile fatty acids (VFAs) and biogas are highly coveted. READ MORE