Sökning: "removal efficiency"

Visar resultat 1 - 5 av 180 avhandlingar innehållade orden removal efficiency.

  1. 1. Phytoremediation Efficiency Assessment of Removal Processes and Hydraulic Performance in Constructed Wetlands

    Detta är en avhandling från Venice : Università Ca’ Foscari di Venezia

    Författare :Anna Mietto; Patrizia Torricelli; Luca De Nat; Mario Malagoli; Cristina Nasci; Stefan Weisner; [2010]
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  2. 2. Removal processes in sewage treatment plants Sludge quality and treatment efficiency of structurally diverse organic compounds

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Ulrika Olofsson; Peter Haglund; Staffan Lundstedt; Juliane Hollender; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Environmetrics; flame retardants; GCxGC; non-targeted screening; mass flow; metals; plasticizers; poorly removed contaminants; POP; PPCP; prediction; Principal Component Analysis; removal efficiency; sewage; sewage treatment plants; sludge; sludge adsorption; sources; time-trend analysis; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi;

    Sammanfattning : Large and ever-increasing numbers of chemicals, including large quantities of a broad spectrum of organic compounds are used in modern society. More than 30 000 of the more than 100 000 chemical substances registered in the EU are estimated to be daily used, of which many will be discharged into the waste-streams handled by municipal sewage treatment plants (STPs). LÄS MER

  3. 3. Targeted and untargeted analysis of organic contaminants from on-site sewage treatment facilities Removal, fate and environmental impact

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Kristin Blum; Peter Haglund; Patrik Andersson; Pim Leonards; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; decentralized sewage treatment; wastewater; surface water; environmental fate; bioavailability; removal efficiency; mass fluxes; biochar; environment; GC×GC-MS; LC-IM-MS; mass spectrometry; contaminants; pollutants; prioritization; non-target analysis; screening; analytisk kemi; Analytical Chemistry;

    Sammanfattning : On-site sewage treatment facilities (OSSFs) are widely used all over the world to treat wastewater when large-scale sewage treatment plants (STPs) are not economically feasible. Although there is great awareness that the release of untreated wastewater into the environment can lead to water-related diseases and eutrophication, little is known about organic contaminants and their removal by OSSFs, environmental load and fate. LÄS MER

  4. 4. Hydraulic Efficiency in Pond Design

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Jesper Persson; [1999]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; performance; environmental science; efficiency; numerical modeling; design; hydraulics; pond; wetland; tracer study; preference;

    Sammanfattning : Today there is a growing interest in constructed ponds to treat agricultural runoff, sewage water and stormwater. But ponds not only remove nitrogen, phosphorus and pollutants such as heavy metals; they can also have ecological, social and esthetic values. LÄS MER

  5. 5. Reducing Stormwater Pollution - Performance of Retention Ponds and Street Sweeping

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Jonas German; [2003]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; urban runoff; street sweeping; removal processes; treatment; removal efficiency; sediment; stormwater; BMP; modelling; pond;

    Sammanfattning : Stormwater, in this study defined as surface runoff in urban areas, is known to transport large quantities of toxic substances to receiving waters. Therefore different practices to treat stormwater have been proposed. In Sweden retention ponds have become a common treatment method during the past decade. LÄS MER