Li Yang
Associate Professor Supervisor of Master's Candidates
Main positions:Assistant Professor
Gender:Female
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:School of Ocean Science and Technology
Discipline:Environmental Engineering
Business Address:D06-309
Contact Information:liyang1989@dlut.edu.cn
E-Mail:liyang1989@dlut.edu.cn
Hits:
Indexed by:Journal Papers
Date of Publication:2021-01-09
Journal:BIORESOURCE TECHNOLOGY
Volume:291
Page Number:121858
ISSN No.:0960-8524
Key Words:Fe(III) oxides; Phenol degradation; Dissimilatory iron reduction; Fe(III)-reducing bacteria; Shewanella
Abstract:The improved performances during anaerobic degradation of phenol to methane with Fe(OH)(3) were usually inapparent, due to its lower solubility (unaccessible to dissimilatory iron reduction) and more positive reduction potential of Fe(III)/Fe(II) (unfavorable for enriching Fe(III)-reducing bacteria [IRBs]). In this study, citrate, the organic chelates, were used to solubilize Fe(III) with the aim of improving the phenol degradation and declining the reduction potential of Fe(III)/Fe(II). Results showed that, in the co-occurrence of citrate and Fe(OH)(3), the degradation rates of phenol were about 1.3-fold rapider than that with sole Fe(OH)(3). Analysis of cyclic voltammetry demonstrated that the reduction potential of Fe(III)/Fe(II) in the form of Fe(OH)(3) (-0.41 to -0.28 V vs Ag/AgCl) declined to -0.61 to -0.41 V. As a result, the Fe(III)-reducing genera, such as Petrimonas and Shewanella, which held a great potential of proceeding syntrophic metabolism via direct interspecies electron transfer (DIET), were significantly enriched.
Pre One:Ferroferric oxide triggered possible direct interspecies electron transfer between Syntrophomonas and Methanosaeta to enhance waste activated sludge anaerobic digestion.
Next One:High-efficiency methanogenesis via kitchen wastes served as ethanol source to establish direct interspecies electron transfer during anaerobic Co-digestion with waste activated sludge
副教授，硕士生指导教师。主要从事污染物的厌氧生物处理及资源化利用研究。2018年以来，作为项目负责人主持国家自然科学基金-青年基金项目1项，国家农业农村部重点研发计划项目子课题1项，教育部重点实验室开放基金项目1项，大连理工大学交叉探索课题1项；作为项目骨干参与“固废资源化”国家重大专项1项、辽宁省科技重大专项2项、国家自然科学基金-面上项目4项。目前，以第一作者或通讯作者身份在Environ Sci Technol、Water Res、J. Hazard Mater、Bioresour. Technol等SCI杂志上发表 JCR一区论文21篇，以其他作者身份参与发表SCI论文30余篇，授权5项中国发明专利, 1项国际发明专利。
