Essays about: "cadmium removal"

Showing result 1 - 5 of 11 essays containing the words cadmium removal.

  1. 1. Evaluation of pollutant removal performance of stormwater biofilters in a Swedish climate : Comparison of three different filter media designs

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

    Author : Anna Träff; [2022]
    Keywords : Stormwater biofilter; stormwater treatment; cold climate; filter media design; low impact development;

    Abstract : In the recent century, a process of urbanization has increased globally. Previously rural or natural land have been converted into impervious surfaces to make way for housing, industries, and roads. This anthropogenic process has resulted in an increased amount of surface runoff from precipitation, so-called stormwater. READ MORE

  3. 2. Reducing cadmium emissions to water during removal of electrostatic precipitator ash : Investigating the effect of process parameters on the formation and precipitation of insoluble cadmium salts in water solutions

    University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Author : Lukas Esperi; [2022]
    Keywords : cadmium; electrostatic precipitator ash; heavy metals; hydroxide precipitation; recovery boiler; elfilteraska; hydroxidfällning; kadmium; sodapanna; tungmetaller;

    Abstract : The removal of electrostatic precipitator (ESP) ash by solving the ash in water constitutes an environmental problem if heavy metals, such as cadmium, present in the ash remain in the outgoing effluent streams. The ESP ash solution is alkaline, meaning cadmium is present as the insoluble salt Cd(OH)2, cadmium hydroxide. READ MORE

  4. 3. Evaluation of a gross pollutant trap-biofilter stormwater treatment train : The Role Of Calcium Carbonate, Vegetation And Pre-Treatment Facility

    University essay from Luleå tekniska universitet/Arkitektur och vatten

    Author : Sofia Fahlbeck Carlsson; [2021]
    Keywords : Bioretention; stormwater; stormwater treatment; stormwater pollutants; heavy metals; phosphorus; Biofilter; dagvatten; dagvattenrening; dagvattenföroreningar; tungmetaller; fosfor;

    Abstract : Development of cities, new buildings and other impervious surfaces entails increased stormwater flows, volumes and pollutant loads. Heavy metals, nutrients, sediments and salt are common pollutants in stormwater. READ MORE

  5. 4. An evaluation of the treatment performance of a ten year old stormwater biofilter in Sweden

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

    Author : Sara Eklund; [2020]
    Keywords : Biofilter; Water Quality; heavy Metals; Nutrients; Stormwater Treatment; Sweden; Tyresö; Biofilter; Vattenkvalitet; Tungmetaller; Näringsämnen; Dagvattenrening; Sverige; Tyresö;

    Abstract : Urban runoff may be contaminated with, for example, metals, nutrients and sediment. Generally, such runoff enters waterways and oceans without any type of treatment. Bioretention systems can be used to protect the aquatic environment since one of their main objectives is to remove pollutants from stormwater. READ MORE

  6. 5. Phytoremediation of heavy metal polluted soils in marginalised regions: opportunities, limitations and sustainable development

    University essay from Mittuniversitetet/Avdelningen för ekoteknik och hållbart byggande

    Author : Lesya Pronoza; [2017]
    Keywords : Phytoremediation; sustainable development; marginalised regions; cadmium; Nicaragua;

    Abstract : Soil pollution is one of the problems that obstruct sustainable development in the affected regions, posing a threat to the local environment, ecosystems and human wellbeing. Phytoremediation is one of the techniques used to clean polluted soils. READ MORE