OPEN ACCESS

Articles online

Dry and Wet Deposition of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans on the Drinking Water Treatment Plant

Category: Articles

Volume: 10 | Issue: 3 | Pages: 231-244
DOI: 10.4209/aaqr.2009.09.0059
PDF | RIS | BibTeX

Long-Full Lin1, Shun-I Shih 1, Jen-Wei Su2, Minliang Shih3, Kuo-Ching Lin4, Lin-Chi Wang5, Guo-Ping Chang-Chien5

  • 1 Department of Environmental Engineering, Kun Shan University, No. 949, Da-Wan Road, Yung-Kang City, Tainan County 710, Taiwan
  • 2 Department of Environmental Engineering, National Cheng Kung University, No. 1, University Road, Tainan 701, Taiwan
  • 3 Department of Environmental Engineering and Science, Chia Nan University of Pharmacy and Science, No. 60, Sec. 1, Er-Jen Road, Tainan 717, Taiwan
  • 4 Department of Occupational Safety and Health, Chung Shan Medical University, No.110, Sec.1, Jianguo N. Road, Taichung City 402, Taiwan
  • 5 Department of Chemical and Materials Engineering, Cheng-Shiu University, No. 840, Chengching Road, Kaohsiung County 833, Taiwan

Abstract

This study investigated the concentrations and congener profiles of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in intake source water (source water) and tap drinking water (tap water) of drinking water treatment plants (DWTPs). In order to have a better understanding on the influence of atmospheric PCDD/F deposition on drinking water, PCDD/Fs in the ambient air of a DWTP (DWTP-LN) were measured and both dry and wet deposition on the water treatment facilities were assessed. The results of this study indicated that the mean PCDD/F concentration in tap water (0.0039 pg WHO-TEQ/L) was found to be approximately 55% of magnitude less than that in source water (0.0086 pg WHO-TEQ/L). In addition, the total deposition flux (dry + wet) of PCDD/Fs entering the DWTP-LN was 27.0 ng I-TEQ/m2-year, and wet and dry deposition contributed approximately 12.0% and 88%, respectively. It reveals that dry deposition is more important than wet deposition of PCDD/Fs in the ambient air of DWTP-LN. Atmospheric deposition of PCDD/Fs will increase the level in source water of DWTP-LN up to 8.91 × 10-3 pg I-TEQ/L, which is approximately 92% of the PCDD/Fs in source water. If a removal efficiency of 87% is achieved by conventional treatment processes including coagulation, flocculation, sedimentation and rapid sand filtration, the water after treatment may increase 1.16 × 10-3 pg I-TEQ/L, which is approximately 43% of the concentration level in tap water. These results indicate that in the DWTP-LN, the influence of atmospheric deposition of PCDD/Fs on the drinking water is of great significance, and water treatment facility with a cover is suggested.

Keywords

Dioxins Source water Tap water Dry deposition Wet deposition


Related Article

Atmospheric Deposition of Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans in Two Cities of Southern China

Jinning Zhu, Haiyan Tang, Jin Xing, Wen-Jhy Lee , Ping Yan , Kangping Cui
Volume: 17 | Issue: 7 | Pages: 1798-1810
DOI: 10.4209/aaqr.2017.05.0177
PDF

Atmospheric Deposition of Polychlorinated Dibenzo-p-dioxins and Dibenzofurans at Coastal and High Mountain Areas in Taiwan

Chandra Suryani R., Wen-Jhy Lee , Endah Mutiara M.P. , John Kennedy Mwangi, Lin-Chi Wang, Neng-Huei Lin, Guo-Ping Chang-Chien
Volume: 15 | Issue: 4 | Pages: 1390-1411
DOI: 10.4209/aaqr.2015.04.0246
PDF

Critical Emissions from the Largest On-Road Transport Network in South Asia

Saroj Kumar Sahu , Gufran Beig, Neha Parkhi
Volume: 14 | Issue: 1 | Pages: 135-144
DOI: 10.4209/aaqr.2013.04.0137
PDF

Ambient Air Quality during Diwali Festival over Kolkata – A Mega-City in India

A. Chatterjee , C. Sarkar, A. Adak, U. Mukherjee, S.K. Ghosh, S. Raha
Volume: 13 | Issue: 3 | Pages: 1133-1144
DOI: 10.4209/aaqr.2012.03.0062
PDF
;