Search for dissertations about: "Sorbents"

Showing result 1 - 5 of 33 swedish dissertations containing the word Sorbents.

2. 1. A small scale wastewater treatment system adapted to nutrient recovery in cold climate : performance and possible sorbents

   Author : Lea Rastas Amofah; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VA-teknik; Urban Water Engineering;

   Abstract : Waterbodies are impaired by, among other things, discharge from onsite small- scale wastewater (WW) treatment systems. Hence, these systems need to be updated to improve the effluent quality and the reuse of nutrients within society. READ MORE

4. 2. An add-on filter technique to improve micropollutant removal and water quality in on-site sewage treatment facilities

   Author : Wen Zhang; Gunno Renman; Erik Kärrman; Carlos Alberto Arias; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Micropollutant; on-site sewage facilities; physicochemical properties; pore structure; sorbents; surface functional group; Mark- och vattenteknik; Land and Water Resources Engineering;

   Abstract : Onsite sewage treatment facilities (OSSFs) in Sweden currently release significant amounts of nitrogen (N) and phosphorus (P) into groundwater or/and receiving water bodies. Micropollutants (MPs) have been found in both surface water and groundwater, indicating insufficient removal of MPs by OSSFs. READ MORE

5. 3. Engineered Wetlands and Reactive Bed Filters for Treatment of Landfill Leachate

   Author : Agnieszka Kietliñska; KTH; []
   Keywords : Blast furnace slag; Compact constructed wetland; Metals; Nitrogen; Polonite; Sorbents;

   Abstract : The main objectives of this study were to investigate (i) anovel wetland treatment technology and (ii) selected bed filtermedia for the removal of contaminants from landfill leachate. Areview of the literature concerning experiences of the use ofconstructed wetlands (CW) for the removal of nitrogen fromlandfill leachate, showed that at least three groups oftreatment systems are in practice: sub-surface flow wetlands,hybrid systems (a combination of vertical and horizontal flowwetlands) and, compact constructed wetland (CCW). READ MORE

6. 4. Sustainable porous organic materials : Synthesis, sorption properties and characterization

   Author : Fredrik Björnerbäck; Niklas Hedin; Knut Irgum; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; porous materials; sorbents; microporous; CO2 capture and separation; gas adsorption; activated carbon; humins; hypercrosslinked polymers; sustainable; Materials Chemistry; materialkemi;

   Abstract : The resources available to us humans, including metals, minerals, biomass, air, water, and anything else on the planet, are being used at an increasing rate. This anthropogenic use of resources both depletes the resources and has negative impacts on other resources, e.g. the biosphere. READ MORE

7. 5. Design and Optimization of CO2 sorbents for Point Source Emissions and Direct Air Capture

   Author : Ribooga Chang; Ocean Cheung; Jean-Francois Boily; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CCS; CO2 Sorbents; Direct Air Capture;

   Abstract : This thesis presents a comprehensive study on the design and optimization of CO2 sorbents, targeting two distinct applications: CO2 capture from point source emissions and Direct Air Capture (DAC). The research first introduces Na2HfO3 as a potential CO2 sorbent for point source emissions, using the molten salt effects of Na2CO3 and the thermal stability of HfO2. READ MORE