Article
Environmental Sciences
Yan Ma, Zhen-Hai Liu, Bei-Dou Xi, Wen-Tao Li, Yan-Qiu Xu, Hang-Zheng Zhao, Zhu-Qi Chen, Xiao-Song He, Baoshan Xing
Summary: The composition of dissolved organic matter (DOM) in groundwater near landfills varies depending on the age of the landfill, with newer landfills showing higher levels of tryptophan and tyrosine, while older landfills have more protein-like and humic-like substances. Leachate leakage introduces unique dye-derived fluorescent matter into contaminated groundwater, leading to increased concentrations of humic-like substances, DOM molecular weight, and microbial activities, making them reliable indicators of groundwater pollution. Identifying leachate pollution can be achieved through a fluorescence method, with the results providing insights into monitoring, early warning, and addressing groundwater pollution in landfills.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Hongfei Liu, Hongwei Xu, Yang Wu, Zemin Ai, Jiaoyang Zhang, Guobin Liu, Sha Xue
Summary: The biodegradation of dissolved organic matter (DOM) is influenced by natural vegetation restoration, with both promotion and inhibition effects observed. Higher temperature enhances the rate of DOM biodegradation. The biodegradability and temperature sensitivity of DOM are regulated by DOM substrate quality and microbial properties.
Article
Environmental Sciences
Rafael Marce, Laia Verdura, Nick Leung
Summary: A study characterized the composition of DOM in the Ter River-Sau Reservoir system in Spain, revealing significant spatial trends with human-derived DOM and autochthonous planktonic activity showing different influences near the river-reservoir boundary. The research identified the plunge point as a hotspot for DOM processing, supported by fluorescence indices and environmental variables.
Article
Engineering, Environmental
Yongyuan Yang, Chenjia Shao, Yaping Guo, Ze Liu, Kristof Demeestere, Stijn Van Hulle
Summary: The study demonstrated the potential of a one-stage partial nitrification-Anammox process (PNA) to effectively remove nitrogen and organics from leachate, with up to 96% of total nitrogen and 43% of COD being removed. Fluorescence analysis revealed insights into the dynamics of influent fluorophores, seasonal variations, and the preferential removal of protein-like compounds. Oxygen supply was found to promote the degradation of protein-like compounds, with potential implications for aerobic oxidation pathways. Additionally, fluorescence was suggested as a potential indicator for biodegradable organics, showing strong correlations with biodegradable chemical oxidation demand (BCOD).
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Weibo Hao, Tong Gao, Wansheng Shi, Mingxing Zhao, Zhenxing Huang, Hongyan Ren, Wenquan Ruan
Summary: This study explores the application of a new coagulant ZrCl4 for the treatment of biologically treated landfill leachate nanofiltration concentrate (LLNC). The results show that ZrCl4 is more effective than traditional coagulants in removing residual dissolved organic matter (DOM), with better neutralization capacity and larger floc size. Furthermore, the recycled ZrCl4 coagulant shows no significant difference in DOM removal, suggesting that the disposal problem of coagulation sludge can be resolved.
Article
Environmental Sciences
Haoyu Ren, Xin Yao, Feiyang Ma, Tuantuan Fan, Huanguang Deng, Yinghao Zhang
Summary: Nansi Lake is the largest lake along the eastern route of China's SNWDP, with spatial and temporal differences in DOM properties between its upper and lower areas. Protein-like substances play a significant role in influencing DOM properties in April and July.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Chemical
Dongyuan Chu, Zhaoji Zhang, Zhi-long Ye, Hui Zhang, Xianzhi Meng, Xiangnong Chen, Yichuang Lin, Shaohua Chen
Summary: The study investigated DOM molecular transformations induced by three coexisting processes (anodic oxidation, active chlorine, and electrochemical Fenton-type) in electrochemical Fe2+/HClO system using various analytical techniques. It was found that aromatic compounds reacted differently with each process, resulting in the formation of different functional groups. The electrochemical Fenton-type process efficiently degraded non-chlorinated compounds, while chlorinated organic molecules remained. Preoxidation aimed at deconstructing aromatic moieties is proposed to prevent the generation of Cl-containing moieties and improve DOM mineralization efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Civil
Yongmei Ma, Rong Mao, Siyue Li
Summary: The study investigated the variations of dissolved organic matter (DOM) compositions and sources in monsoonal rivers of China. It found that DOM in the wet season showed higher humification, aromaticity, and lignin substances, while the dry season had more biological and autochthonous sources. The research highlighted that hydrological seasonality and anthropogenic activities were key drivers for DOM variations, which will improve understanding of DOM's role in biogeochemical cycles and guide water quality protection in monsoonal rivers.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Kai Zhang, Ju Gao, Dongpo Men, Xiyang Zhao, Shanshan Wu
Summary: The study used fluorescence and PARAFAC analysis to characterize the binding properties of DOM with Fe (III), Fe (II+III), and Mn (II) in mine water. Under rock-influenced conditions, protein-like components dominated. Clay minerals and iron-bearing minerals in rocks had significant effects on the binding characteristics of DOM and metal ions.
Article
Environmental Sciences
Ying Zhang, Chao Yang, Zhi Zheng, Bo Cao, Fengyuan You, Yingying Liu, Zhao Jiang
Summary: The study investigated the different phytotoxicity of atrazine in two different soils to soybeen seedlings, and discussed the potential mechanism by examining the adsorption properties of atrazine with the soils as well as the fluorescent characteristic variation of the DOM extracted from the soils during binding with atrazine. The results suggest that atrazine exhibited different phytotoxicity to soybean seedlings in the two soils, indicating that the components of DOM in different soils may play a role in regulating the environmental behavior and phytotoxicity of organic pollutants.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Environmental
Zhepei Gu, Weiming Chen, Chen He, Qibin Li
Summary: This study investigated the transformation characteristics of dissolved organic matter (DOM) in leachate nanofiltration concentrate (NFC) during a combined flocculation-O-3/H2O2 process using ESI FT-ICR MS. The results showed that flocculation and O-3/H2O2 process could remove different types of DOM compounds and further degrade DOM that was resistant to flocculation.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Yuan Cui, Jian-Qiao Meng, Yu-Han Chen, Fei-Fan Shao, Xuan-Zheng Chen, Yu Jin, Ming-Xiang Zhang, Guo Yun-Qian, Fang-Li Luo, Fei-Hai Yu
Summary: The modification of dissolved organic matter (DOM) degradation by plant carbon inputs is a critical process that controls carbon dynamics. This study investigated the effects of different tissue leachates from Phragmites australis on DOM degradation and found that they differed in composition and bioavailability. The intensity and direction of priming effects (PEs) induced by the leachates depended on both leachate type and water stability, with leaf and root leachates having higher PEs in fresh water but negative PEs in tidal water. The findings emphasize the importance of considering the nature of exogenous and native DOM when interpreting DOM degradation processes.
ENVIRONMENTAL RESEARCH
(2023)
Article
Engineering, Environmental
Luiz Rigotto, Sergio F. Aquino, Joao Rigotto, Grazielle Santos, Ludymyla M. L. Silva, Anibal F. Santiago
Summary: This study investigates the transformations of dissolved organic matter (DOM) in stabilization ponds co-treating sanitary sewage and landfill leachate. The results show the prevalence of humic-like fluorophores associated with landfill leachate, with anaerobic ponds exhibiting higher fluorescence removal than facultative ponds. The influent and final effluent display complex DOM characteristics, with influent characteristics linked to the addition of landfill leachate and effluent characteristics likely due to the release of soluble microbial products (SMPs).
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Inalmar D. Barbosa Segundo, Ana Gomes, Bianca M. Souza-Chaves, Minkyu Park, Andre B. dos Santos, Rui A. R. Boaventura, Francisca C. Moreira, Tania F. C. Silva, Vitor J. P. Vilar
Summary: This study evaluates the feasibility of incorporating ozone (O-3)-based advanced oxidation processes (AOPs) as an intermediate step in a multistage treatment system for non-biodegradable sulphur-rich leachate from a hazardous industrial solid waste landfill. Various O-3-driven processes were applied to the leachate after removal of sulphur compounds, resulting in a treatment train that transformed highly recalcitrant wastewater into effluent in full compliance with regulations. The effectiveness of the O-3/H2O2 process on dissolved organic matter transformation was confirmed through fluorescence excitation-emission matrix and size exclusion chromatography analysis.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Weiming Chen, Zhepei Gu, Chen He, Qibin Li
Summary: This study identified the transformation mechanism of refractory organic matter in membrane bioreactor effluent using electrospray ionization coupled with Fourier transform ion cyclotron resonance mass spectrometry. The results showed that the flocculation-ultraviolet (UV)/peroxymonosulfate (PMS) system was effective in removing dissolved organic matter (DOM) and regulating its oxidation and saturation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Review
Engineering, Environmental
Kun-Hao Wei, Jie Ma, Bei-Dou Xi, Min-Da Yu, Jun Cui, Bao-Liang Chen, Yang Li, Qing-Bao Gu, Xiao-Song He
Summary: This review assesses the applications and recent advances of three commonly used oxidants in the remediation of soil and groundwater, and analyzes the removal efficiencies reported in research articles related to petroleum-contaminated soil and groundwater. The study finds that the remediation efficiency of the oxidants is higher for groundwater compared to soil. Furthermore, combining multiple techniques can increase the overall efficiency of ISCO and help solve the rebound problem.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Qiuling Dang, Xinyu Zhao, Tianxue Yang, Tiancheng Gong, Xiaosong He, Wenbing Tan, Beidou Xi
Summary: This study investigated the removal of triclosan (TCS) in soil amended with different types of compost. The results showed that compost addition significantly enhanced the removal of TCS, with food waste compost being the most efficient. The increase of soil nutrient factors and the decrease of pH stimulated the abundance of key dominant bacteria and fungi, which were found to have a potential effect on TCS degradation. In addition, four bacterial biomarkers were identified as the key TCS-degraders. The findings suggest that compost amendment can effectively degrade TCS in soil.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Biotechnology & Applied Microbiology
Shanquan Wang, Yixuan Wang, Xiaosong He, Qihong Lu
Summary: The fate of organic pollutants can be determined by degradation and humification. The potential of humification process for removal of resistant organic pollutants has been underestimated. The recent progress in synthesizing artificial humic substances has made targeted humification of recalcitrant organic pollutants possible.
TRENDS IN BIOTECHNOLOGY
(2022)
Article
Biology
Aswin Chari, Kiran K. Seunarine, Xiaosong He, Martin M. Tisdall, Christopher A. Clark, Dani S. Bassett, Rod C. Scott, Richard E. Rosch
Summary: Network control theory is used to model the neurophysiological dynamics of the brain based on the structural connectome constructed from diffusion MRI. This study explores the changes in average and modal controllability in children with drug-resistant epilepsy compared to healthy controls. The results suggest that increased thalamocortical connectivity may be responsible for the observed changes in controllability. The findings also indicate that controllability changes can be used as a manifestation of brain network dysfunction in epilepsy and may help in understanding the pathophysiology of the disease.
COMMUNICATIONS BIOLOGY
(2022)
Article
Environmental Sciences
Lei Jiang, Yi-Xuan Chu, Xuan Zhang, Jing Wang, Xiaosong He, Chen-Yang Liu, Ting Chen, Ruo He
Summary: This study investigated the anaerobic oxidation of methane (AOM) activity and communities of methane-oxidizing bacteria in three informal landfills. The AOM rate was highest in the landfill with aeration, and the NO2--N content was positively correlated with the AOM rate. Gamma-Proteobacteria methanotrophs, especially Methylobacter, were abundant in the landfilled waste. The relative abundance of various methanotrophs was positively correlated with the contents of NO2--N in the landfilled waste samples.
ENVIRONMENTAL RESEARCH
(2022)
Article
Oncology
Guangxu Xuan, Xin Zhang, Min Zhang, Minghang Yu, Yujie Zhou, Xiaosong He, Xiaopeng Hu, Xi Wang, Liangfa Liu
Summary: This study found that the expression of NTF2 was significantly increased in HNSCC tissue and high expression levels were associated with poor prognosis. NTF2 was found to be involved in epithelial cell growth, skin differentiation, keratosis, and estrogen metabolism. The expression of NTF2 was negatively correlated with immune infiltrations and correlated with immune checkpoint blockade responses. Experimental verifications confirmed the promoting effects of NTF2 on the proliferation and migration of tumor cells.
FRONTIERS IN ONCOLOGY
(2022)
Article
Environmental Sciences
Jiajun Ou, Junlin Wen, Wenbing Tan, Xiaoshan Luo, Jiexuan Cai, Xiaosong He, Lihua Zhou, Yong Yuan
Summary: Linear and nonlinear models were used to monitor the structure dependence of humic substances (HS) redox activities. The PLS model showed moderate ability, while the ANN model achieved higher performance. Sensitivity analysis confirmed the accuracy of the models and provided a potential approach for studying the structure-activity relationships of HS.
ENVIRONMENTAL RESEARCH
(2023)
Review
Environmental Sciences
Chenghao Huang, Nannan Yuan, Xiaosong He, Changhui Wang
Summary: The use of ceramsite as a filtration material in water treatment is popular, and the development of low-cost, high-performance, and environmentally friendly ceramsites has gained attention. This study focuses on exploring the use of drinking water treatment residue (DWTR) to make ceramsite for water treatment. The results show that DWTR-based ceramsites can be fabricated using sintering and non-sintering methods. Further research is needed to evaluate the performance and potential for pollution control of DWTR-based ceramsite-constructed filtration systems, as well as the stability and safety of raw DWTR-based ceramsite.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Xiaowei Wang, Hongwei Zhang, Xiaosong He, Jianfei Liu, Zhiliang Yao, Hongbin Zhao, Dayang Yu, Baosen Liu, Tianfu Liu, Weilong Zhao
Summary: Limited information on contamination of PFASs from agricultural activities in water sources. Investigated PFASs contamination in agricultural groundwater and nearby surface water in North China. Found higher PFAS concentrations in surface water, indicating migration from surface to groundwater. Found significant correlations between PFASs and organic carbon/nutrients in water. Health risk assessment showed no significant harm to residents in the studied area. Provided information on sources and migration characteristics of PFASs in a typical agricultural area of North China.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2023)
Review
Environmental Sciences
Qi Pan, Qing-Yu Liu, Jing Zheng, Yan-Hong Li, Song Xiang, Xiao-Jie Sun, Xiao-Song He
Summary: Gas emitted from landfills contains a large quantity of volatile organic compounds (VOCs) and semi-volatile organic compounds (SVOCs), some of which are carcinogenic, teratogenic, and mutagenic. The global hazards of VOCs and SVOCs in landfill gas to human health remain unclear. To quantify the global risk distributions of these pollutants, the composition and concentration data of VOCs and SVOCs from 72 landfills in 20 countries were collected and their human health risks were assessed. Organic compounds in landfill gas primarily result from the biodegradation of natural organic waste or the emissions and volatilization of chemical products. The respiratory system, particularly the lung, was found to be the major target organ of VOCs and SVOCs, with additional adverse health impacts ranging from headache and allergies to lung cancer. Aromatic and halogenated compounds were the primary sources of health risk, while ethyl acetate and acetone from the biodegradation of natural organic waste also exceeded the acceptable levels for human health. Overall, VOCs and SVOCs affected residents within 1,000 m of landfills. Air temperature, relative humidity, air pressure, wind direction, and wind speed were the major factors that influenced the health risks of VOCs and SVOCs. Currently, landfill risk assessments of VOCs and SVOCs are primarily based on respiratory inhalation, with health risks due to other exposure routes remaining poorly elucidated. In addition, potential health risks due to the transport and transformation of landfill gas emitted into the atmosphere should be further studied.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Multidisciplinary Sciences
Panagiotis Fotiadis, Matthew Cieslak, Xiaosong He, Lorenzo Caciagli, Mathieu Ouellet, Theodore D. Satterthwaite, Russell T. Shinohara, Dani S. Bassett
Summary: Recent work has found that the relationship between structural and functional connectivity in the human brain varies across different regions, with reduced connectivity observed in the sensory-association cortical hierarchy. This study suggests that intracortical myelination and excitation-inhibition balance play a role in mediating the heterogeneous expression and temporal variance of structure-function coupling.
NATURE COMMUNICATIONS
(2023)
Article
Neurosciences
Amanda L. McGowan, Linden Parkes, Xiaosong He, Ovidia Stanoi, Yoona Kang, Silicia Lomax, Mia Jovanova, Peter J. Mucha, Kevin N. Ochsner, Emily B. Falk, Dani S. Bassett, David M. Lydon-Staley
Summary: This study examines the relationship between brain structure and negative affect variability in daily life using network control theory. The results suggest that high average controllability of the cingulo-insular system is associated with increased negative affect variability.
BIOLOGICAL PSYCHIATRY: GLOBAL OPEN SCIENCE
(2022)
Proceedings Paper
Engineering, Industrial
Shangzhu Jin, Qingxia Li, Xiaosong He, Jun Peng, Ke Xu, Ning Chen, Haojun Dai
Summary: This paper proposes a personalized recommendation method based on heterogeneous information networks, which improves the performance of the recommender system by integrating multiple meta-paths. The experimental results demonstrate its superiority.
2022 IEEE 17TH CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA)
(2022)
Meeting Abstract
Clinical Neurology
L. Caciagli, C. Paquola, X. He, C. Vollmar, M. Centeno, B. Wandschneider, U. Braun, K. Trimmel, S. B. Vos, M. K. Sidhu, P. J. Thompson, S. Baxendale, G. P. Winston, J. S. Duncan, D. S. Bassett, M. J. Koepp, B. C. Bernhardt
Article
Environmental Sciences
Bi-Cun Jiang, Ye-Chao Tian, Wen-Xiang Ji, Min-Hui Cai, Yu-Ze Han, Yan-Ting Zuo, Chen-Dong Shuang, Xiao-Song He, Fu-Qiang Liu, Wen-Tao Li, Ai-Min Li
Summary: This study identified a unique fluorescent tracer from landfill leachate that could be used for monitoring groundwater contamination. Through principal factor analysis, groundwater samples were successfully clustered into two groups, with Group II showing the characteristic fluorescence tracer of landfill leachate contamination, indicating pollution risks.
