Essays about: "surface treatment"

Showing result 1 - 5 of 315 essays containing the words surface treatment.

  1. 1. Metal Removal Efficiency of Five Filter Media Intended for use in Road Stormwater Treatment Facilities

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Lovisa Lundgren; [2021]
    Keywords : Stormwater; Metal removal efficiency; Filter media; Dagvatten; Metallavskiljningskapacitet; Filtermaterial;

    Abstract : Roads, buildings, vehicles, and human activities cause spreading of pollutants, which partly end up in stormwater. The pollutant load contains solid particles of various size, hydrocarbons, organics, metals, nutrients, and microorganisms, which can have negative effects on water quality of surface-, coastal- and ground waters. READ MORE

  2. 2. Regulation of Plant Defense Genes Against Bacterial Pathogens

    University essay from KTH/Proteinvetenskap

    Author : Jenny Sjöström; [2021]
    Keywords : plant defense; PTI; FLS2; SERK1; regulation; växtförsvar; PTI; FLS2; SERK1; reglering;

    Abstract : Sjukdom på grödor orsakad av bakterier kan bidra till ekonomiska förluster för bönder samt brist på mat, därför är det viktigt att utveckla nya hållbara sätt att motverka och behandla grödor mot bakterier. Idag är det mest vanliga tillvägagångssättet antibiotika men detta är inte hållbart p.g.a uppkomst av antibiotikaresistens. READ MORE

  3. 3. Modeling BOD removal in free watersurface constructed wetlands with variable residence time-based methods

    University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Author : Degefu Yohannes Sebro; [2021]
    Keywords : BOD removal; Free water-surface constructed wetlands; VART-BOD; models; dynamic diffusion zone; Technology and Engineering;

    Abstract : Constructed wetlands (CWs) have been applied for several years in the removal process pollutants from secondary treatment plants and stormwater. In this paper, the Variable Residence Time (VART) model for solute transport in streams was extended to simulate the BOD removal process in free water surface flow constructed wetlands (FWS CWs). READ MORE

  4. 4. Method development for a tribological diffusion couple of rock and cemented carbide

    University essay from Uppsala universitet/Tillämpad materialvetenskap

    Author : Alma Fjällström; [2021]
    Keywords : Diffusion couple; tribology; cemented carbide; rock; granite; sandstone; Silicon; rock drilling;

    Abstract : In a diffusion couple, the intimacy of the contact between the two parts is of high importance for the results. In a tribological contact, matter can transfer from one part to another and a very intimate contact is formed. READ MORE

  5. 5. Influence of land cover changes on organic carbon and organic nitrogen concentrations in Swedish rivers

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Julia Iwan; [2021]
    Keywords : Total Organic Carbon TOC ; Total Organic Nitrogen TON ; Land Cover Change; Sweden; WaterBase; Earth and Environmental Sciences;

    Abstract : There is increasing pressure on freshwater systems due to excessive nutrient loading by anthropogenic sources. In Sweden, freshwaters have become browner due to increasing exports of organic matter from soils into streams, rivers, and lakes. READ MORE