Essays about: "pH effects"

Showing result 1 - 5 of 163 essays containing the words pH effects.

  1. 1. Indirect methods as quality control of cemented hydraulic fill : Renström mine, Boliden mineral AB

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Amanda Rask; [2019]
    Keywords : Backfill; CHF;

    Abstract : The Renström mine, Boliden Mineral AB, uses, among other methods, the Transverse long hole stoping method with backfill. The mine uses a cement-stabilized hydraulic fill (CHF), which is a mixture of enrichment sand, cement and water. The most important factor in relation to strength is the water cement ratio. READ MORE

  2. 2. Effects on wastewater due to new active pharmaceutical ingredients and products

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Marina Vik; [2019]
    Keywords : Pharmaceutical wastewater; wastewater treatments; BOD; COD; chemical engineering; kemiteknik; Earth and Environmental Sciences; Technology and Engineering;

    Abstract : Wastewater from pharmaceutical industries can sometimes contain substances that could cause complications in the receiving wastewater treatment plant. This master thesis is about a phar-maceutical company and the wastewater from it. READ MORE

  3. 3. Effects of land use on wetland carbon storage and ecosystem services in the tropics : A first estimation investing rural wetlands in central and eastern Uganda

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Astrid Hedman; [2019]
    Keywords : tropical ecosystems; wetlands; carbon stocks; ecosystem services; climate change;

    Abstract : Wetlands provide important ecosystem services (ES) by storing large amounts of organic carbon (OC) and being of high biological, cultural, and economical value. Uganda is covered by vast wetland areas but has with a booming population rapidly been decreasing due to pressure on lands. READ MORE

  4. 4. 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

  5. 5. Interaction Effect of Filler Material on Fungal Biomass Activity for Heavy Metal Biosorption in Stormwater

    University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Author : Robert Peterson; [2018]
    Keywords : Heavy metals; Biosorption; Fungal biomass; Serial optimisation;

    Abstract : In the wake of ever more occurring and evident consequences brought by climate change such as droughts and an increasing world population, a responsible use and handling of freshwater has never been as important as before. Stormwater is more than often not treated and simply released back in nature with any kind of pollution it has collected on its way, one of which being heavy metals. READ MORE