论文成果
Molecular Characterization of Organics Removed by a Covalently Bound Inorganic-Organic Hybrid Coagulant for Advanced Treatment of Municipal Sewage
摘要:Coagulation is an important process to remove organics from water. The molecular composition and structure of organic matter influence water quality in many ways, and the lack of information regarding the organics removed by different coagulants makes it challenging to optimize coagulation processes and ensure reclaimed water safety. In this paper, we investigated coagulation of secondary biological effluent from a municipal sewage treatment plant with different coagulants. We emphasized investigation of organics removal characteristics at the molecular level using Fourier transformion cyclotron resonance mass spectrometry (FT-ICR MS) coupled with electrospray ionization (ESI). We found that conventional coagulants can only partially remove condensed polycyclic aromatics and polyphenols with low H/C (H/C < 0.7) and highly unsaturated and phenolic compounds and aliphatic compounds with high O/C (O/C > 0.6). A new coagulant, CBHyC, had better removal efficiencies for all organics with different element compositions and molecular structures, especially organics that are resistant to conventional coagulants such as highly unsaturated and phenolic compounds and aliphatic compounds located in 0.3 < O/C < 0.8 and 1.0 < H/C < 2.0 regions and sulfur-containing compounds with higher O/C (e.g., anionic surfactants and their metabolites or coproducts). This study provides molecular insights into the organics removed by different coagulants and provides data supporting the possible optimization of advanced wastewater treatment processes.
关键字:RESONANCE MASS-SPECTROMETRY WASTE-WATER TREATMENT DRINKING-WATER MATTER RIVER TRANSFORMATION SURFACTANTS BEHAVIOR IMPACT DOM
ISSN号:0013-936X
卷、期、页:卷: 52 期: 21 页: 12642-12648
发表日期:2018-11-06
期刊分区(SCI为中科院分区):一区
收录情况:SCI(科学引文索引印刷版),ESI(基本科学指标数据库),SCIE(科学引文索引网络版)
发表期刊名称:Environmental Science and Technology
参与作者:Geng, Chun-Xiang,曹娜,Xu, Wei,袁梓文,Liu, Jin-Wei,Xu, Chun-Ming,Liu, Si-Tong,Zhao, Hua-Zhang
通讯作者:何晨
第一作者:史权
论文类型:期刊论文
论文概要:Geng, Chun-Xiang,曹娜,Xu, Wei,何晨,袁梓文,Liu, Jin-Wei,史权,Xu, Chun-Ming,Liu, Si-Tong,Zhao, Hua-Zhang,Molecular Characterization of Organics Removed by a Covalently Bound Inorganic-Organic Hybrid Coagulant for Advanced Treatment of Municipal Sewage,Environmental Science and Technology,2018,卷: 52 期: 21 页: 12642-12648
论文题目:Molecular Characterization of Organics Removed by a Covalently Bound Inorganic-Organic Hybrid Coagulant for Advanced Treatment of Municipal Sewage