Wasted Roast and Ground Coffee as Bioadsorbent to Removal Arsenic (V) in Water
Arsenic contamination causes serious problems in human health and drinking water is a major source of exposure. This research presents a tentative solution to the problem of arsenic contamination of water wells in the area of Tumbaco that were closed for the high cost its treatment, and others are u...
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| Format: | article |
| Language: | spa |
| Published: |
2011
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| Online Access: | https://revistadigital.uce.edu.ec/index.php/QUIMICA/article/view/571 |
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Add Tag | Summary: | Arsenic contamination causes serious problems in human health and drinking water is a major source of exposure. This research presents a tentative solution to the problem of arsenic contamination of water wells in the area of Tumbaco that were closed for the high cost its treatment, and others are used for irrigation water in soccer fields, like is in “Club Deportivo El Nacional”. The study the effect of pH and amount of wasted roast and ground coffee, previously activated, in the adsorption of Arsenic (V) from aqueous solution is described. The optimal values using 100 ml of water 43,21 μg As (V) / L, of pH and dosage of coffee were 4.697 and 1.4067 g respectively at 25°C for a 2 hours period of contact time. Residues of coffee were used to remove Arsenic (V) from well water (“Club Deportivo El Nacional”) showing a removal efficiency of 65.26% and an adsorption capacity of 2 μg Arsenic (V) / g wasted coffee. |
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