文献类型：期刊文献

英文题名：On the FT-ICR mass spectrometry analysis of dissolved organic matter released by adsorbent during coal chemical wastewater treatment

作者：Wei, Qi[1,2];Chen, Cai[1];Ma, Hong-Peng[3];Liu, Tao[4];Liu, Bing[1,2];Wang, Tian-Xiang[4];Zhang, Sen[4];Yang, Dan-Hui[1,2];Lv, Wen-Jie[1];Wang, Hua-Lin[1,2]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China;[3]Northwestern Polytech Univ, Key Lab Special Funct & Smart Polymer Mat, Minist Ind & Informat Technol, Xian 710072, Shaan Xi, Peoples R China;[4]Shaanxi Yanchang Petr Yanan Energy Chem Co Ltd, Methanol Olefins Ctr, Xianyang 727500, Shaan Xi, Peoples R China

年份：2024

卷号：951

外文期刊名：SCIENCE OF THE TOTAL ENVIRONMENT

收录：;EI(收录号：20240229929);WOS:【SCI-EXPANDED(收录号:WOS:001320914500001)】；

基金：This work was supported by the sponsorship of the National Natural Science Foundation of China (Grant No. 52322003, 52170075, and 52030001) and Shanghai Excellent Academic/Technical Leaders Program.

语种：英文

外文关键词：Adsorption; Coal to olefins; Halogenated compound; Wastewater; Release; FT-ICR MS

摘要：This study analyzed the dissolved organic matter (DOM) released by adsorbent during wastewater treatment. It was found that the adsorption method resulted in an organic removal efficiency of over 97 % for coal-to-olefin (CTO) wastewater, with the lowest value of 15.7 mg/L. The Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) detected 4111 DOM in the wastewater, 4052 remaining DOM after first-stage anthracite (ANC) adsorption, and 1013 after second-stage macroporous adsorption resin (MAR). The removal degree of lipids in wastewater was the highest, followed by aliphatic/amino-acid/mini-peptides and lignin. During the adsorption process, the proportion of halogenated compounds (HCs) declined from 59.86 % to 38.63 % and 21.67 %. Additionally, freshly produced 2035 and 311 DOMs were found in the adsorption effluent of ANC and MAR, respectively, with HCs accounting for 34.71 % and 67.96 %. Upon flowing ultra-pure water through ANC and MAR, the effluent dissolved organic carbon (DOC) ranges were 1.118-3.574 mg/L and 1.014-2.557 mg/L, respectively. There were 159 and 131 species of DOM detected, respectively, with HCs content of 59.06 % and 45.02 %. Comparative experiments revealed the complex components of the wastewater promoting the release of organic matter on the adsorbent surface that further reacted to generate organic matter. However, fewer substances were released by the adsorbent.