Essays about: "sludge pre-treatment"

Showing result 1 - 5 of 13 essays containing the words sludge pre-treatment.

  1. 1. Analysis and modelling of ozone pre-treatment of sludge for biogas production

    University essay from KTH/Kemiteknik

    Author : Gokul Prasad; [2022]
    Keywords : Wastewater treatment; anaerobic digestion; sludge pre-treatment; ozonation; methane; Avloppsvattenrening; anaerob rötning; slamförbehandling; ozonering; metan;

    Abstract : Ozonförbehandling av avloppsvattenslam har diskuterats i litteraturen som en potentiell metod för att öka biogasproduktionen och minska slamvolymen. I detta arbete utvecklades en numerisk modell för att simulera effekten av ozonförbehandling på biogasproduktion genom anaerobrötning. Modellen bygger på en befintlig modell från litteraturen. READ MORE

  3. 2. 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

  4. 3. Pulse Electric Field as a Pre-treatment Method of Wastewater Sludge prior to Anaerobic Digestion

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Milton Matilde; [2020]
    Keywords : PEF; AD; biogas yield; sludge pre-treatment; water engineering; environmental engineering; avloppsteknik; vattenförsörjningsteknik; Technology and Engineering;

    Abstract : This work analyzed the impact caused by different intensities of Pulsed Electric Fields (PEF) pre-treatment on the biogas production from small-scale anaerobic digesters of wastewater sludge under thermophilic conditions. PEF technology consists of passing the substrate through an electric field which generates a potential difference across the cells, resulting in electroporation. READ MORE

  5. 4. Improving methane production using hydrodynamic cavitation as pre-treatment

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Louise Abrahamsson; [2016]
    Keywords : Hydrodynamic cavitation; steam explosion; anaerobic digestion; hydrolysis; bmp; particle size distribution; methane; particle size reduction; food waste; sludge; grass; biogas; energy; renewable energy; Scandinavian biogas fuels AB; Scandinavian biogas; cavitation; biogas production; biomethane potential; Linköping university; Hydrodynamisk kavitation; kavitation; ångexplosion; rötning; anaerob rötning; hydrolys; BMP; partikelstorlekreducering; biometanpotential; biogas; metan; metangas; alger; saccharina latissima; ascophyllum nodosum; gräs; matavfall; avloppsslam; förnybar energi; Linköpings universitet; examensarbete biogas; examensarbete kavitation;

    Abstract : To develop anaerobic digestion (AD), innovative solutions to increase methane yields in existing AD processes are needed. In particular, the adoption of low energy pre-treatments to enhance biomass biodegradability is needed to provide efficient digestion processes increasing profitability. READ MORE

  6. 5. Hydrodynamic cavitation applied to anaerobic degradation of fats, oils and greases (FOGs)

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Johan Lunnbäck; [2016]
    Keywords : FOG; Hydrodynamic cavitation; Anaerobic digestion; Pre-treatment; Oil emulsion;

    Abstract : To increase profitability for biogas production, new innovative substrates and condition of operations needs to be implemented. At the current state, fats, oils and greases (FOGs) represent a promising substrate even though it brings operational challenges to the anaerobic digestion process. READ MORE