Torabi Hokm Abadi, Mahnaz (2018) Remove mixture atrazine herbicide and heavy metal chromium from contaminated water using activated carbon adsorbent to continuous procces. Masters thesis, Sabzevar University of Medical Sciences.
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Abstract
Introduction: Herbicides and heavy metals, including atrazine and chrome, are the most important new contaminants. They are found in the body of surface water and underground waters and are dangerous for human health and the environment. And eliminating them from water resources It is necessary. Absorption is one of the best techniques used to remove contaminated water. Materials and Methods: In this research, the carbon from pomegranate wood and Scanbill was used to remove atrazine herbicide so that Parametric experiments were carried out and the effect of pH, adsorbent concentration, contaminant concentration and contact time Removing them in a discontinuous way and the collision time in a continuous column method were investigated. Results: Discontinuous method The results showed that 0.2 g / l of carbon derived from Scanbill wood in optimal conditions it was able to remove 100% atrazine at a concentration of 25 mg per liter And has an absorption capacity of 672 mg / g atrazine. It also has a carbon concentration of 0.8 g / l Remove 83.6% of the concentration of 25 mg / liter Removes chromium and has an adsorption capacity of 57.5 mg / g chromium. Deleting atrazine and chrome by carbon Scanbill Follow the Ferrandichim model. Continuous method The results of transfusion of water contaminated with atrazine and chromium at a concentration of 25 mg per liter in fiows of 2.5 ‘ 3.75 and 5 ml/min in breakpoint time For atrazine alone, respectively 216’71 and 18 and For chrome only 8’3 and1 hours. Discussion and conclusion . The results show that by increasing the time remaining in the column the time of contact between the atrazine and carbon molecules increases and this increases the time of the failure point as well as the time of full saturation of the column. The result is that carbon scannabil has higher capacity and higher rate of absorption of heavy metals and Organic materials and Economic Carbon to remove organic pollutants.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Atrazine, Chromium (VI), Carbon Scanbill, Absorption |
| Subjects: | R Medicine > RA Public aspects of medicine R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine |
| Divisions: | Faculty of Medicine, Health and Life Sciences > School of Medicine |
| Depositing User: | Saeed Shoja |
| Date Deposited: | 09 Jan 2019 04:55 |
| Last Modified: | 09 Jan 2019 04:55 |
| URI: | http://eprints.medsab.ac.ir/id/eprint/888 |
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