Distribution and transformation of dissolved organic matters (DOMs) in membrane distillation for desulfurization wastewater in thermal power plant
文献类型：期刊论文
| 作者 | Zheng, Libing ; Zhang, Chun; Wang, Jun; Yu, Dawei; Zhong, Hui; Hou, Deyin; Wei, Yuansong
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| 刊名 | JOURNAL OF WATER PROCESS ENGINEERING
 |
| 出版日期 | 2022-04 |
| 卷号 | 46期号:0页码:102363 |
| 关键词 | PARALLEL FACTOR-ANALYSIS ZERO LIQUID DISCHARGE FLUORESCENCE EXCITATION FOULING BEHAVIOR SPECTROSCOPY PARAFAC OPPORTUNITIES FILTRATION SYSTEMS |
| ISSN号 | 2214-7144 |
| 英文摘要 | The organic fouling mechanism and its control are patchy in membrane distillation (MD) process, as the distribution and transformation of dissolved organic matters (DOMs) in MD are poorly understood due to its application scenarios for high salinity wastewater. In this work, MD performance for desulfurization wastewater was evaluated over a 65 d long-term operation, with a focus on the composition, distribution, and transformation of DOMs. MD shows good tolerance to the high concentrations of salts and DOMs (salt rejection > 99%, organic matter rejection > 98%), with high flux of 15 kg/m(2).h and high flux recovery as Fr was 99.7%. Polyaromatic hydrocarbon (PAHs), tryptophan- or protein-like, and autochthonous-sourced humic acids (FI was around 2) were main DOMs in feedwaters, and the spatio-temporal distribution and transformation appeared result from the membrane interception and microbial processes. Tryptophan/tyrosine increased in the feedwaters, and becoming the dominant permeate component as the operation time prolonged. While proteins and PAHs also penetrated as the membrane was progressively wetted. Proteins was easily peeled off form membrane surface during cleaning, followed by PAHs, while tryptophan/tyrosine were protected by the biofilm. It demonstrating the vertical distribution of DOMs on foulants layer, which need further attention for membrane fouling control. This study demonstrates the potential of MD in desulfurization wastewater treatment and offers a new insight into the DOMs distribution and transformation, which could deepen the understanding of the organic fouling mechanism in MD. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47749]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 通讯作者 | Wei, Yuansong |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100085, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Lab Water Pollut Control Technol, Beijing 100085, Peoples R China 4.China Univ Min & Technol, Sch Chem & Environm Engn, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, Libing,Zhang, Chun,Wang, Jun,et al. Distribution and transformation of dissolved organic matters (DOMs) in membrane distillation for desulfurization wastewater in thermal power plant[J]. JOURNAL OF WATER PROCESS ENGINEERING,2022,46(0):102363. |
| APA | Zheng, Libing.,Zhang, Chun.,Wang, Jun.,Yu, Dawei.,Zhong, Hui.,...&Wei, Yuansong.(2022).Distribution and transformation of dissolved organic matters (DOMs) in membrane distillation for desulfurization wastewater in thermal power plant.JOURNAL OF WATER PROCESS ENGINEERING,46(0),102363. |
| MLA | Zheng, Libing,et al."Distribution and transformation of dissolved organic matters (DOMs) in membrane distillation for desulfurization wastewater in thermal power plant".JOURNAL OF WATER PROCESS ENGINEERING 46.0(2022):102363. |
入库方式： OAI收割
来源：生态环境研究中心
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