Publication Cover
Journal of Environmental Science and Health, Part A
Toxic/Hazardous Substances and Environmental Engineering
Volume 38, 2003 - Issue 11
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Original Articles

Odor Control in Evaporation Ponds Treating Olive Mill Wastewater Through the Use of Ca(OH)2

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Pages 2537-2547 | Received 16 Dec 2002, Published online: 06 Feb 2007
 

Abstract

Different amounts of Ca(OH)2 were added in 2 L beakers containing 1 L of olive mill wastewater (OMW). The mixture was stirred for 45 min and left to settle. Wastewater analysis was used in order to determine the effect of the different amounts of calcium hydroxide in the treating process, three days after the application. The Odor Detection Threshold was used for determining the effect of the treatment in the odors produced in the beakers, three and 30 days after. Both sets of measurements indicated an important reduction in wastewater pollutants and odor emission when 10 g/L of Ca(OH)2 were added. In order to evaluate these results in more realistic conditions, 10 L plastic containers were filled with 6 L of OMW, relevant amounts of Ca(OH)2 were added, the mixture was stirred manually and left to settle in the open. Again, 10 g/L of calcium hydroxide produced the best results in odor reduction and wastewater treatment.

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