Abatement of organic pollutants using fly ash based adsorbents
| Autor: | Olugbenga Solomon Bello, Rhoda Oyeladun Oyewole, Bukola Morenike Lasisi, Kayode Adesina Adegoke |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Environmental Engineering
chemistry.chemical_element Portable water purification 02 engineering and technology 010501 environmental sciences 01 natural sciences Coal Ash law.invention Membrane technology Water Purification Adsorption law medicine Filtration 0105 earth and related environmental sciences Water Science and Technology Pollutant Waste management 021001 nanoscience & nanotechnology Carbon chemistry Fly ash Environmental science 0210 nano-technology Water Pollutants Chemical Activated carbon medicine.drug |
| Zdroj: | Water science and technology : a journal of the International Association on Water Pollution Research. 76(9-10) |
| ISSN: | 0273-1223 |
| Popis: | The presence of organic pollutants in the environment is of major concern because of their toxicity, bio-accumulating tendency, threat to human life and the environment. It is a well-known fact that, these pollutants can damage nerves, liver, and bones and could also block functional groups of essential enzymes. Conventional methods for removing dissolved pollutants include chemical precipitation, chemical oxidation or reduction, filtration, ion-exchange, electrochemical treatment, application of membrane technology, evaporation recovery and biological treatment. Although all the pollutant treatment techniques can be employed, they have their inherent advantages and limitations. Among all these methods, adsorption process is considered better than other methods because of convenience, easy operation and simplicity of design. A fundamentally important characteristic of good adsorbents is their high porosity and consequent larger surface area with more specific adsorption sites. This paper presents a review of adsorption of different pollutants using activated carbon prepared from fly ash sources and the attendant environmental implications. Also, the ways of overcoming barriers to fly ash utilization together with regeneration studies are also discussed. |
| Databáze: | OpenAIRE |
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