scholarly journals The reduction of 2- and 3-ring PAHs entering to the surface waters in the integrated processes

2018 ◽  
Vol 59 ◽  
pp. 00012
Author(s):  
Maria Włodarczyk-Makuła ◽  
Agnieszka Popenda
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Activated Carbon ◽  
Surface Waters ◽  
Aromatic Hydrocarbons ◽  
Industrial Wastewater ◽  
Oxidation Process ◽  
Simultaneous Oxidation ◽  
Polycyclic Aromatic ◽  
Oxidation Efficiency ◽  
Spectrometer System

The aim of the study was to determine the removal of 2- and 3-ring polycyclic aromatic hydrocarbons (PAHs) during oxidation process and during simultaneous oxidation and adsorption processes. Technological research was conducted with the use of biologically treated industrial wastewater. Oxidation was carried out with dihydrogen peroxide. The adsorption process was carried out onto activated carbon. Quantitative and qualitative determination of polycyclic aromatic hydrocarbons was conducted using gas chromatograph and mass spectrometer system. The experiments were conducted under constant pH as well asunder the constant temperature. The oxidation efficiency of the analyzed hydrocarbons under oxidation conditions ranged from 14 to 81%. During the simultaneous oxidation process and adsorption on activated carbon, the PAHs removal ranged from 43 to 100%. The results lead to the conclusions that simultaneous oxidation and adsorption can be successfully apply in the final treatment of industrial wastewater resulting in the minimizing PAHs load entering to the surface waters.

scholarly journals B-Cyclodextrin Polyurethanes Copolymerised with Beetroot Fibers (Bio-Polymer), for the Removal of Organic and Inorganic Contaminants from Water

2013 ◽  
Vol 2 (1) ◽  
pp. 150 ◽  
Author(s):  
Jamil Rima ◽  
Karine Assaker
Keyword(s):  
Heavy Metals ◽  
Methylene Blue ◽  
Polycyclic Aromatic Hydrocarbons ◽  
Water Treatment ◽  
Aromatic Hydrocarbons ◽  
Rhodamine B ◽  
Industrial Wastewater ◽  
Contaminated Groundwater ◽  
Inorganic Contaminants ◽  
Polycyclic Aromatic

<p>In this study, B-Cyclodextrinn polymerized with beetroot fibers (Bio-polymer), was prepared and applied to the removal of organic and inorganic contaminants from wastewater. An investigation into the use of cross-linked cyclodextrin polyurethanes copolymerised with beetroot fibers as adsorbents for organic pollutants and heavy metals has yielded very useful results which may have an impact in future water treatment applications.</p> The Biopolymer was tested in water contaminated by dyes, polycyclic aromatic hydrocarbons (PAH) and heavy metals. The effectiveness to eliminate dyes such as methylene blue and Rhodamine B with concentrations around 100 ppm was more than 99%, while the pyrene,which was chosen as an example among PAHs, showed a potential of elimination exceeding the 97% for solutions of 10 ppm. Also, heavy metals, such as Lead, Zn, and Cu, were tested and showed an efficacy exceeding the 99.8%. The results indicated that the biopolymer developed in this study has the potential to be a promising material for the removal of mixed pollutants from industrial wastewater or from contaminated groundwater.

scholarly journals Removing polycyclic aromatic hydrocarbons from water using granular activated carbon: kinetic and equilibrium adsorption studies

2018 ◽  
Vol 25 (14) ◽  
pp. 13511-13524 ◽  
Author(s):  
Dinushika Eeshwarasinghe ◽  
Paripurnanda Loganathan ◽  
Mahatheva Kalaruban ◽  
Danious Pratheep Sounthararajah ◽  
Jaya Kandasamy ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Activated Carbon ◽  
Aromatic Hydrocarbons ◽  
Granular Activated Carbon ◽  
Equilibrium Adsorption ◽  
Adsorption Studies ◽  
Polycyclic Aromatic
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