Essays about: "thermophilic"

Showing result 1 - 5 of 25 essays containing the word thermophilic.

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. High-loaded thermophilic anaerobic digestion of mixed sewage sludge : A pilot study

   University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

   Author : Santiago Elejalde Bolaños; [2022]
   Keywords : thermophilic anaerobic digestion; volatile fatty acids; mixed sludge; organic loading rate; alkalinity; wastewater treatment plant; termofil rötning; flyktiga fettsyror; blandslam; organisk belastning; alkalinitet; avloppsreningsverk;

   Abstract : Municipal wastewater treatment plants (WWTP) are important infrastructural components in a society and also important for sustainability. In a WWTP the most common treatment configuration is mechanical, biological, and chemical treatment of the wastewater. READ MORE

4. 3. How the Choice of Primary Treatment Affects the Biogas Potential of Primary Sludge

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Fanny Blom; [2022]
   Keywords : wastewater treatment; primary treatment; biogas potential; primary settling treatment; rotating belt filter; chemically enhanced primary treatment; environmental engineering; water resources engineering; Technology and Engineering;

   Abstract : The global heating has resulted in rising temperatures and more extreme weather conditions around the world. In combination with increasing energy demands, this has led to an increasing demand of renewable energy. One option is utilizing the wastewater to produce biogas. There-fore, wastewater can be seen as a resource rather than waste. READ MORE

5. 4. Microbial Carbonisation and its potential for on-farm composting : exploring reductive composting as an approach for regenerative agriculture

   University essay from SLU/Dept. of Biosystems and Technology (from 130101)

   Author : Ludwig Peter Stephan; [2022]
   Keywords : on-farm composting; reductive composting; regenerative agriculture; microbial carbonisation; mikrobielle carbonisierung; greenhouse gas emissions;

   Abstract : The search for agronomic solutions to the decline of soil health, open-ended nutrient cycles and greenhouse gas (GHG) emissions from agriculture, against the background of impending climate change, were motivations for this thesis. A composting trial on a Swedish farm was designed to find answers to the overarching research question of how feasible and climate-friendly on-farm composting using Microbial Carbonisation (MC) is, compared to conventional windrow composting (CC). READ MORE

6. 5. System concept for small-scale biological methanation using electrolysis and trickle bed reactor : with the aim of upgrading biogas to vehicle fuel quality

   University essay from SLU/Dept. of Energy and Technology

   Author : Gustav Larsson; [2021]
   Keywords : biological methanation; biogas upgrade; methane; small-scale methanation;

   Abstract : In the present study, the concept of a biological H2 methanation (BHM) system was created for four cases of scale which are determined by electrolyser scale. The system design is aimed to upgrade existing biogas to vehicle fuel quality, with a concentration of CH4 above 95% and H2S removal. The cases of scale and type of electrolyser are: 4. READ MORE