Essays about: "vfa"

Showing result 11 - 15 of 47 essays containing the word vfa.

1. 11. Volatile fatty acid production and application as external carbon source for denitrification

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Cora Michelle Döhler; [2020]
   Keywords : VFAs; co-fermentation; primary sludge; food waste; denitrification; external carbon source; MBBR;

   Abstract : By rethinking wastewater treatment plants (WWTPs) as resource recovery facilities, it is possible to de- velop the next generation of WWTPs. Moreover, it allows to accomplish environmental goals, such as reducing the CO2 footprint, and comply with increasing effluent standards regarding the concentration of nitrogen in a more sustainable way. READ MORE

3. 12. Polyhydroxyalkanoate Production from Municipal Waste Streams

   University essay from KTH/Resursåtervinning

   Author : Elsa Eriksson; [2020]
   Keywords : Polyhydroxyalkanoate; volatile fatty acids; mixed culture; bioreactor; municipal waste streams; Polyhydroxialkanoat; flyktiga fettsyror; blandad kultur; bioreaktor; kommunalt avfall;

   Abstract : Polyhydroxyalkanoates (PHAs) are a group of bioplastics, which are produced through microorganisms. They are accumulated in granules inside bacteria’s cell cytoplasm and serve as an energy reserve. READ MORE

4. 13. Feedstock Recovery From Municipal Food Waste

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

   Author : Matilda Palmér; Anna Sandström; Sara Johansson; Josefin Eklund Wallin; [2020]
   Keywords : Feedstock Recovery; Food waste; Sludge; Anaerobic digestion; VFA;

   Abstract : Volatile Fatty Acids (VFAs) are a by-product when producing methane through anaerobic digestion (AD). Due to their many uses as building block chemicals, it is of interest to look into ways to optimize anaerobic digestion toward VFA production instead of methane generation. READ MORE

5. 14. Mapping spontaneous biological phosphorus removal in a membrane bioreactor process without the anaerobic condition : Investigating the effect of alternative external carbon sources

   University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

   Author : Ross Roberts; [2020]
   Keywords : enhanced biological phosphorus removal; PAO; anoxic; carbon source; ethanol; ORP;

   Abstract : Phosphorus removal in wastewater treatment is commonly achieved by chemical precipitation, enhanced biological phosphorus removal (EBPR) or a simultaneous combination of the two. A defined anaerobic condition is widely regarded as the critical element to sustain EBPR. However, this study demonstrates that EBPR is indeed occurring in a 4. READ MORE

6. 15. Life cycle assessment of DHA produced by microalgae using food waste : Assessing global warming, fossil energy use and effects on biodiversity

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Louise Bartek; [2020]
   Keywords : Life cycle assessment LCA ; docosahexaenoic acid DHA ; biodiversity loss; volatile fatty acids VFA ; global warming; sustainable development; Livscykelanalys LCA ; dokosahexaensyra DHA ; biodiversitet; flyktiga fettsyror VFA ; global uppvärmning; hållbar utveckling;

   Abstract : Biodiversity is a key component for life on Earth since it contributes to clean water, fresh air and food security. Today, fatty fish farmed in aquaculture is the main Omega 3 source consumed by humans, including the essential fatty acid docosahexaenoic acid (DHA). DHA origin from plants and accumulate in fish via the marine food web. READ MORE