Survey of the effective factors in the production of HAAs and measuring their concentration in the Tehran outlet water treatment plants in the first half of 2010

Mahvi, Amir Hossein; Rastkari, Noushin; Nabizadeh Nodehi, Ramin; Nazmara, Shahrokh; Nasseri, Simin; Ghoochani, Mahboobeh

Volume 6, Issue 3 (12-2013) ijhe 2013, 6(3): 353-364 | Back to browse issues page

‎ 20.1001.1.20082029.1392.6.3.8.8

Mendeley

Zotero

RefWorks

Mahvi A H, Rastkari N, Nabizadeh Nodehi R, Nazmara S, Nasseri S, Ghoochani M. Survey of the effective factors in the production of HAAs and measuring their concentration in the Tehran outlet water treatment plants in the first half of 2010. ijhe 2013; 6 (3) :353-364
URL: http://ijhe.tums.ac.ir/article-1-5257-en.html

Survey of the effective factors in the production of HAAs and measuring their concentration in the Tehran outlet water treatment plants in the first half of 2010

Amir Hossein Mahvi¹

, Noushin Rastkari²

, Ramin Nabizadeh Nodehi³

, Shahrokh Nazmara³

, Simin Nasseri⁴

, Mahboobeh Ghoochani ^*

⁵

1- Department of Environmental Health Engineering, School of Public Health and Institute for Envoronmental Research, Tehran University of Medical Sciences, Tehran, Iran. Centers for Solid Waste Research, Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran.
2- Centers for Air Pollution Research, Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran.
3- Department of Environmental Health Engineering, School of Public Health and Institute for Envoronmental Research, Tehran University of Medical Sciences, Tehran, Iran.
4- Centers for Water Quality Research, Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran.
5- Ministry of Health and Education, Tehran, Iran. , mgh939@gmail.com

Abstract: (8220 Views)

Background and Objectives:Chlorination is the most common method of water disinfection. Chlorine reaction with natural organic compounds nor removed completely during treatment process would result in forming disinfection byproducts. Followed by trihalomethanes, Haloaceticacides are the second main byproducts of chlorination in water. The research works conducted in Iran have assessed trihalomethanes. Hence, this is the first time we are reporting haloacetic acids in Iran. Materials and Methodology: We collected samples from surface water resources and treated water in Tehran for six consecutive months (first half, 2010). We measured temperature, pH, UV adsorption at 254 nm and TOC in each surface water sample and analyzed pH, residual chlorine, and haloacetic acids in the treated water samples. Results: We found that TOC in surface water resources is 3.6-4.42 and 1.78-2.71 mg/l in spring and summer respectively. Moreover, haloacetic acids concentration was found to be 41.7-55.56 and 34.83-43.73 μg/l in spring and summer respectively. Conclusion: Our results revealed that concentration of NOM, TOC, and HAAs was more in spring than summer. In addition, concentration of HAAs was depended up on NOM and TOC. Considering maximum permeable concentration of HAAs (60 μg/l) by EPA, it can be claimed that concentration of HAAs was less than the maximum permissible level in all of the samples. However, the immanency of the monitored values to the standard values can be a warning for concerned authorities in water industry.

Keywords: trihalomethanes, TOC, UV adsorption at 254 nm, water resources, disinfection byproducts

Full-Text [PDF 1471 kb] (4766 Downloads)

Type of Study: Research | Subject: General
Received: 2014/06/8 | Accepted: 2014/06/8 | Published: 2014/06/8