Essays about: "alkali treatment"

Showing result 16 - 20 of 23 essays containing the words alkali treatment.

  1. 16. Ash transformation during combustion of phosphorus-rich industrial sludge : Investigation of phosphorus recovery potential, and effects on emissions and deposit formation 

    University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Author : Ylva Carlborg; [2015]
    Keywords : ash; combustion; co-combustion; sludge; energy; energiteknik; aska; förbränning;

    Abstract : Effective use of resources is essential in the development towards a sustainable industry. Waste products, such as sludge from industrial waste water treatment, often contain valuable reserves of plant nutrients but this resource is nonetheless commonly disposed of as contaminated waste. READ MORE

  3. 17. Askåterföring på skogsmark : en metaanalys om påverkan på ytvattnets syra-baskemi

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Matilda Johansson; [2014]
    Keywords : Askåterföring; skogsmark; ytvatten; försurning; ANC;

    Abstract : Uttaget av biomassa har ökat i det svenska skogsbruket. Energi från biomassa är en viktig del i att Sverige nu uppnått EU´s miljömål om att minst 50 % av vår energiförbrukning skall komma från förnyelsebara källor. I och med en ökad förbränning av biobränslen bildas också mer vedaska som idag till största del deponeras. READ MORE

  4. 18. Experimental Design and Optimization of Hydrolysis of Paper for Biogas Production

    University essay from Högskolan i Borås/Institutionen Ingenjörshögskolan

    Author : Johan Yngvesson; [2011]
    Keywords : ;

    Abstract : The waste production in Sweden and Europe is increasing each year. Swedish households throw away 2.7 million tonnes material annually and because of though waste legislations, most of this is recycled as material or energy. READ MORE

  5. 19. Pretreaments of Chinese Agricultural residues to increase biogas production

    University essay from Tema vatten i natur och samhälle; Filosofiska fakulteten

    Author : Yu Wang; [2010]
    Keywords : Biogas product chinese agricultural residual; side product; pretreatment;

    Abstract : Development of biological conversion of lignocellulosic biomass to biogas is one approach to utilize straw comprehensively. However, high lignin contents of lignocellulosic materials results in low degradation. READ MORE

  6. 20. Anaerobic digestion of pre-treated biological sludge from pulp and paper industry using heat, alkali and electroporation

    University essay from Tema vatten i natur och samhälle

    Author : Lina Cardell; [2010]
    Keywords : Alkali; heat; electroporation; anaerobic digestion; biological sludge; pre-treatment; pulp and paper industry; Alkali; elektroporering; anaerobisk rötning; bioslam; förbehandling; pappers- och massaindustri;

    Abstract : The biological sludge formed in the pulp and paper wastewater treatment constitutes a costlyproblem to dispose off due to poor dewaterability. It is often incinerated or used as soilconditioner improvement. By using anaerobic digestion of the biological sludge, thedewaterability can be increased. READ MORE