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:: Volume 19, Issue 3 (Aug,Sep 2017) ::
J Shahrekord Univ Med Sci 2017, 19(3): 11-22 Back to browse issues page
Survey on hydrogen sulfide and ammonia emissions in the air around of the stabilization ponds Mineral gases producing odors in wastewater treatment
Ali Arezoomand , Hamzehali Jamali , Hamid Karyab , Mohammad Mehdi Emamjomeh , Saeed Omidi Engenering , Zeinab Karimi
Epidemiology Dept., Guilan University of Medical Sciences, Rasht, I.R. Iran , S_Omidi2000@Yahoo.com
Abstract:   (1348 Views)
Background and aims: Odors are one of the problems of water and wastewater treatment, especially in the vicinity of residential areas. Hydrogen sulfide and ammonia, mineral compounds in waste water treatment plants are odorous. These gases have unfavoraitable effects on humans and the environment.
Methods: This Cross-sectional study was conducted in the Faculty of Health, Qazvin University of Medical Sciences. After field visits around the plant, the number of 12 sampling stations was determined. Sampling stations are selected in four geographical directions with regard to permanent trade winds that are zero, two and four kilo meters from the plant to Residential settlements. Sampling was performed in the morning and evening during the four seasons and 192 samples were provided.
Results: Results showed that the concentration of ammonia and hydrogen sulfide gas was more in warm seasons significantly and more odor caused (P=0.011, P=0.004) and the maximum emission is in the summertime. According to the results, the highest concentration of these gases was in the evening during the day.
Conclusion: According to the results, the concentration of hydrogen sulfide and ammonia gases in all the seasons except winter is within the threshold. Concentration of hydrogen sulfide in the summer and ammonia concentrations in all the seasons were higher than US. EPA standards and World Health Organization guidelines.

Keywords: Wastewater treatment plant, Odor, Hydrogen sulfide, Ammonia, Stabilization pond.
Full-Text [PDF 1063 kb]   (371 Downloads)    
Type of Study: Research | Subject: environmental health
Received: 2016/04/24 | Accepted: 2016/09/17 | Published: 2017/08/2
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Arezoomand A, Jamali H, Karyab H, Emamjomeh M M, Omidi S, Karimi Z. Survey on hydrogen sulfide and ammonia emissions in the air around of the stabilization ponds Mineral gases producing odors in wastewater treatment. J Shahrekord Univ Med Sci. 2017; 19 (3) :11-22
URL: http://journal.skums.ac.ir/article-1-2885-en.html

Volume 19, Issue 3 (Aug,Sep 2017) Back to browse issues page
مجله دانشگاه علوم پزشکی شهرکرد Journal of Shahrekord University of Medical Sciences
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