Essays about: "biogas"

Showing result 1 - 5 of 373 essays containing the word biogas.

  1. 1. Purification and refolding of a novel dipeptidyl peptidase III

    University essay from Linköpings universitet/Kemi

    Author : Lennie Jansson; [2019]
    Keywords : dipeptidyl peptidase III; DPP III; purification; refolding; protein; Arg-Arg-2NA;

    Abstract : There is a continuous search for novel enzymes to complement the abilities of today’s commercially available enzyme and find tailor-fit alternatives to suit the diverse array of bio-based industries. One application could be to increase biogas yield by finding substrate degrading proteases that can be added to the anaerobic digestion process and survive degradation themselves. READ MORE

  3. 2. Analysis of the distribution of plant nutrients in a biogas production system : a look at VH Biogas, co-digesting manure from several farms

    University essay from SLU/Dept. of Soil and Environment

    Author : André Johansson; [2019]
    Keywords : biogas; digestate; manure; nutrients;

    Abstract : This study examined nutrient flows in a system where 20 farms deliver manure to a biogas plant for digestion, and then receive digestate back. Some other substrates were also anaerobically digested at the plant e.g. slaughter residues. READ MORE

  4. 3. Opportunities for small-scale anaerobic digesters for hotels and restaurants in Kathmandu, Nepal

    University essay from KTH/Energiteknik

    Author : Avinash Dhital; [2018]
    Keywords : anaerobic digestion; biogas; bio-waste; small-scale; cooking; fuel; hotels; restaurants; Nepal;

    Abstract : About 83% of total energy consumed in Nepal comes directly from the solid fuels. The import of Liquified Petroleum Gas (LPG) is also growing at an exponential rate. READ MORE

  5. 4. Using Blue Mussels as a Tool for Mitigating Eutrophication in the Baltic Sea

    University essay from Linköpings universitet/Industriell miljöteknik; Linköpings universitet/Industriell miljöteknik

    Author : Johanna Ståhle; Linnea Henriksson; [2018]
    Keywords : Life cycle analysis LCA ; recycling of nutrients; blue mussels; mussel farm; mussel meal; biogas; compost;

    Abstract : Eutrophication is a consequence of excess nutrients in the water which leads to increased algaegrowth, reduced water transparency and hypoxic bottoms. This is the biggest environmental problemfor the Baltic Sea which recently has resulted in stricter legislations and other initiatives to help theBaltic Sea to recover. READ MORE

  6. 5. Long-term application of digestate and biofuel ash to arable soil : effects on the solubility of Cd, Al and trace metals as evidenced by simulated scenarios

    University essay from SLU/Dept. of Soil and Environment

    Author : Elias Bäckström; [2018]
    Keywords : cadmium; fertilizer; Visual MINTEQ;

    Abstract : The importance of nutrient recycling could not be emphasized enough in to-day’s society. Reduction of waste as well as recycling of nutrients would be the result if ash and biogas digestate could be used as fertilizer. However, the solubility of Cd, Al and micronutrients might be affected in a different way than by standard fertilizers. READ MORE