Separation and characterization of refractory colored dissolved effluent organic matter in a full-scale industrial park wastewater treatment plant
文献类型：期刊论文
| 作者 | Islam, Ashraful; Sun, Guangxi; Shang, Wei; Zheng, Xingcan; Li, Pengfeng; Yang, Min; Zhang, Yu
|
| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
 |
| 出版日期 | 2021-08 |
| 卷号 | 28期号:31页码:42387-42400 |
| 关键词 | Wastewater treatment plant Dissolved organic matter Yellowish color Ozonation Granular activated carbon Resin fractionation |
| ISSN号 | 0944-1344 |
| 英文摘要 | Colored dissolved organic matter (DOM) is a significant indicator of refractory DOM in wastewaters, and fluorescent DOM is an essential part indicating colorants. However, little is known about the composition and contribution of colored DOM to wastewater. This study provided some insights on the persistent yellowish color in biological effluent through use of a multi-characterization approach, and evaluated the effect of two advanced treatments (O-3 and granular active carbon (GAC)) in a full-scale wastewater treatment plant. The multi-characterization technique incorporated resin fractionation, excitation-emission matrix spectroscopy (EEM) combined with fluorescence regional integration (FRI), size-exclusion chromatography (SEC), and X-ray photoelectron spectroscopy (XPS) analysis. The fractionation results showed that hydrophobic acid (HPOA) and hydrophilic (HPI) substances are abundant in colorants, and HPI-type colorants are comparatively resistant or unable to be removed through GAC and O-3 individually. FRI-based EEMs showed that F-3 (fulvic acid-like organics) and F-5 (humic acid-like organics) mainly account for the yellowish color, and their combined fractions of total colorants are 50%, 31%, and 48% in biological, biological + O-3, and biological + GAC effluents, respectively. SEC for measurement of the apparent molecular weight revealed that these colorants may have molecular weights in the range 2-5 kDa. The XPS analysis indicated that these colorants possess ether or hydroxyl and nitro (C-O/C-N) chromophoric groups with conjugated aromatic structures. For C-O/C-N, O-3 showed good removal efficiency overall. GAC showed exceptionally high efficiency for HPOA but very low efficacy toward HPI-type colorants in terms of C-O/C-N chromophoric functional group removal. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45998]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Drinking Water Sci & Technol, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 2.North China Municipal Engn Design & Res Inst Co L, Tianjin 300074, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, State Key Lab Environm Aquat Chem, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Islam, Ashraful,Sun, Guangxi,Shang, Wei,et al. Separation and characterization of refractory colored dissolved effluent organic matter in a full-scale industrial park wastewater treatment plant[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2021,28(31):42387-42400. |
| APA | Islam, Ashraful.,Sun, Guangxi.,Shang, Wei.,Zheng, Xingcan.,Li, Pengfeng.,...&Zhang, Yu.(2021).Separation and characterization of refractory colored dissolved effluent organic matter in a full-scale industrial park wastewater treatment plant.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,28(31),42387-42400. |
| MLA | Islam, Ashraful,et al."Separation and characterization of refractory colored dissolved effluent organic matter in a full-scale industrial park wastewater treatment plant".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 28.31(2021):42387-42400. |
入库方式： OAI收割
来源：生态环境研究中心
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