Ammonium nitrogen removal characteristics of zeolite media in a Biological Aerated Filter (BAF) for the treatment of textile wastewater |
| |
| Authors: | Won-Seok Chang Hung-Thuan Tran Doo-Hyun Park Rui-Hong Zhang Dae-Hee Ahn |
| |
| Affiliation: | 1. Energy Technology Center, Seoul National University of Technology, 172 Gongneung 2 Dong, Nowon-Gu, Seoul, Republic of Korea;2. Department of Environmental Engineering and Biotechnology, Myongji University, San 38-2, Nam Dong, Yong In, Kyonggi Do 449-728, Republic of Korea;3. Department of Biological Engineering, Seokyeong University, 16-1 Jungneug Dong, Sungbuk Gu, Seoul 136-704, Republic of Korea;4. Department of Biological and Agricultural Engineering, University of California, One Shields Avenue, Davis, CA 95616, USA |
| |
| Abstract: | The main objective of this study is to evaluate ammonium nitrogen removal characteristics of zeolite media in Biological Aerated Filter (BAF) process for treatment of textile wastewater. Several biofilters were conducted to compare the performance of natural zeolite with sand and granular activated carbon (GAC) as packing media. The removal of NH4+-N on the BAF reactor packed with natural zeolite media was more efficient than that with sand and GAC. After biofilm was well developed on the surface of zeolite media, the removal of NH4+-N by ion exchange, nitrification, and biological synthesis was estimated as 35.1%, 40.2%, and 22.3%, respectively. The natural zeolite pretreated with heat and HCl solution showed higher ammonium removal efficiency than that with NaOH solution. No significant difference on ammonium adsorption capacity was observed when nature zeolite was neither pretreated by heat nor hydrochloric acid solution. This study shows that natural zeolites has the feasibility to be chosen as a useful media in BAF process for the treatment of textile wastewater. |
| |
| Keywords: | Natural zeolite media Ammonium nitrogen removal Biological Aerated Filter Textile wastewater |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
