Article
Engineering, Civil
Xinyu Song, Meiyang Zhao, Anqi Chen, Xinyu Xie, Hongyu Yang, Shubo Zhang, Zimin Wei, Yue Zhao
Summary: This study evaluated the impact of terrestrial material input on the microbial and photodegradation processes of dissolved organic matter (DOM), and found that terrestrial DOM contained more humic-like fractions that were susceptible to photodegradation. The input of terrestrial materials also altered the microbial community and abundance. These findings are significant for understanding the fate of terrestrial DOM in the water column and predicting future DOM cycling processes.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Shuangshuang Wei, Chang Zhou, Guoyang Zhang, Hongcen Zheng, Zhihao Chen, Shujuan Zhang
Summary: Organoarsenical antibiotics pose a severe threat to the environment and human health. In aquatic environment, dissolved organic matter (DOM)-mediated photochemical transformation is one of the main processes in the fate of organoarsenics. The presence of acetylacetone significantly enhances the photochemical conversion of roxarsone.
Article
Environmental Sciences
Jun Wang, Xuan Li, Ming Gao, Xuefu Li, Lingchao Zhao, Shaoguo Ru
Summary: This study found that polystyrene microplastics (MPs) increased the estrogenic effects of 17 alpha-ethynylestradiol (EE2) on marine fish, leading to damage in the reproductive system and suppression in growth, as well as an increase in plasma 17 beta-estradiol (E-2) levels. MPs also increased the concentration of EE2 in seawater, exacerbating its toxicity.
Review
Environmental Sciences
Zhao Tang, Ze-hua Liu, Hao Wang, Zhi Dang, Yu Liu
Summary: This review summarized the concentration levels of EE2 in surface waters across 32 countries, with potential estrogenic effects evaluated. Developing countries generally had higher EE2 concentrations in surface waters compared to developed countries, emphasizing the need for further research on different sources contributing to EE2 contamination.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Liqing Zeng, Changzhou Yan, Fan Yang, Zhuo Zhen, Jiaming Yang, Jielun Chen, Yujie Huang, Yuhui Xiao, Wen Zhang
Summary: This study investigates the impact of pH and dissolved oxygen conditions on the migration of arsenic at the sediment-water interface, and finds that lower DO environments, particularly at pH 9.5, result in higher release quantities and rates of arsenic.
Article
Engineering, Environmental
Yeunook Bae, Nyssa M. Crompton, Neha Sharma, Yihang Yuan, Jeffrey G. Catalano, Daniel E. Giammar
Summary: The removal of dissolved selenium from wastewater is a challenging issue for industries, and iron electrocoagulation has been found to effectively remove selenate and selenite. The rate and extent of dissolved selenium removal was highest at pH 8 and strictly anoxic conditions, with green rust and ferrous hydroxide playing important roles. Further research is needed to optimize iron electrocoagulation for selenium removal.
Article
Engineering, Environmental
Yanghui Xu, Qin Ou, Qiang He, Zhengsong Wu, Jun Ma, Xiaoliu Huangfu
Summary: The study investigated the influence of DBC on the aggregation and deposition behaviors of nanoplastics in aquatic environments, revealing that DBC can interact with PSs through various mechanisms to screen their surface charges, promote aggregation, and weaken stability.
Article
Engineering, Environmental
Zhicheng Liao, Bei Li, Juhong Zhan, Huan He, Xiaoxia Yang, Dongxu Zhou, Guoxi Yu, Chaochao Lai, Bin Huan, Xuejun Pan
Summary: This study investigated the photodegradation behavior of 17 alpha-ethinylestradiol (EE2) mediated by diverse dissolved organic matter (DOM) solutions from wastewater treatment plants (WWTPs). The findings revealed that the humification degree of DOM positively influenced the rate of EE2 photodegradation, with humic-like components playing a significant role. Additionally, DOM extracted from the anaerobic-anoxic-oxic (A2/O) process had the highest photodegradation rate and water-soluble organic matter (WSOM) was found to have the strongest promotion effect on EE2 degradation.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2023)
Article
Environmental Sciences
You-Sheng Liu, Yu-Xiao Cheng, Dan Wu, Quan-Le Chen, Guang-Guo Ying
Summary: This study investigates the photochemical behavior of 5-TTri and CBT in aqueous solutions under UV radiation, revealing their photolysis rates are influenced by pH, salinity, metal ions, and humic acid. Experimental data suggests tentative photo transformation schemes for both compounds, involving various photoproducts through bond scission and dechlorination processes.
ENVIRONMENTAL RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Xuejie Li, Peng Zhou, Hao Feng, Zhouhua Jiang, Huabing Li, Kevin Ogle
Summary: In this study, the dissolution and passivation kinetics of CoCrFeMnNi high entropy alloys in an acidic solution were investigated. The alloy with nitrogen addition exhibited spontaneous passivation driven by dissolved oxygen, while the alloy without nitrogen required an acceleration of dissolved oxygen for passivation. The nitrogen containing alloy had a lower critical dissolution rate, leading to enhanced passivation efficiency.
Article
Environmental Sciences
Yan Lin, Hongchun Liu, Xiaojie Wang
Summary: This study investigated the removal effects and reaction kinetics of bisphenol A (BPA) and 17 alpha-ethynylestradiol (EE2) by biogenic Mn oxides (BMOs). The results showed that BMOs effectively removed BPA and EE2, with the removal effect dependent on initial concentrations and dosages of BMOs. The degradation processes of BPA and EE2 followed first-order reaction kinetics. Under optimal conditions, the removal efficiency of BPA and EE2 exceeded 98.2% and 94.3%, respectively.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Xiqing Wang, Atif Muhmood, Deqing Ren, Pengjiao Tian, Yuqi Li, Haizhong Yu, Shubiao Wu
Summary: This study investigated the photodegradation characteristics of polystyrene microplastics (PS-MPs) in the presence of humic acid (HA) under ultraviolet light conditions. The results showed that HA promotes higher levels of reactive oxygen species, accelerating the photodegradation of PS-MPs. Additionally, HA contributes to a higher content of oxygen-containing compounds in the photodegradation of PS-MPs. The presence of HA also significantly affects the intermediates and final degradation products of PS-MPs.
Article
Environmental Sciences
Hang Yang, Yi Zhang, Shibin Xia
Summary: This study revealed the co-effect of clay mineral-based photocatalyst and humic acid on the photodegradation of dye, with a ratio of 1:3 for maifanite/g-C3N4 being optimal for the degradation process in the presence of humic acid.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
H. Lee, F. Coulon, S. T. Wagland
Summary: The aim of this study was to investigate the effect of different concentrations of humic acid on metal(loid) recovery rate in landfill leachate. The study found that humic acid was effective in releasing several metals, while its concentration had an impact on the release of certain metals. The immobilization of other metals was due to the coordination and adsorption of humic acid. The findings provide insights for the development of efficient and environmentally-friendly methods of metal(loid) recovery using humic acid as a leaching agent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Miaomiao Tan, Longfei Liu, Minggu Zhang, Yanli Liu, Chengliang Li
Summary: This study found that the mobility of PSMPs in MOCS was significantly lower compared to bare sand, due to the existence of attractive electrostatic force and rougher collector surfaces. However, the presence of Cd2+ and HA could increase the transport of PSMPs in MOCS.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Biotechnology & Applied Microbiology
Zhenghua Peng, Yongfei Lei, Yanmei Liu, Xing Wan, Benqin Yang, Xuejun Pan
Summary: Anammox is an efficient nitrogen removal technique, but its long start-up time limits industrial application, therefore the use of carriers to accelerate start-ups is essential. Preservation of anammox bacteria is crucial, and adding polyurethane sponge can shorten the start-up and reactivation time by retaining more anammox bacteria in the reactor.
BIOCHEMICAL ENGINEERING JOURNAL
(2022)
Article
Environmental Sciences
Yanmei Liu, Qingzuo Wang, Qian Pan, Xiandong Zhou, Zhenghua Peng, Deokjin Jahng, Benqin Yang, Xuejun Pan
Summary: The study found that in the co-bioevaporation treatment, archaea grew rapidly under intermittent ventilation, while continuous ventilation promoted fungal growth. Genes related to carbohydrates and lipids metabolism and ATP-associated enzymes were more abundant under continuous ventilation, while intermittent ventilation showed better DNA repair ability and microbial viability.
Article
Environmental Sciences
Zhixiang Xu, Dimeng Zhao, Xianyao Zheng, Bin Huang, Xuejun Pan, Xueshan Xia
Summary: The study demonstrated that environmental concentrations of E2 can promote cell growth, migration, invasion, apoptosis inhibition, and G1-S progression in tamoxifen-resistant patients. Overexpression of ERα36 and GPR30 can restore tamoxifen sensitivity and partially offset the proliferative effects mediated by E2.
ENVIRONMENTAL TOXICOLOGY
(2022)
Article
Engineering, Environmental
Chaochao Lai, Huan He, Wenxiao Xie, Sihan Fan, Huang Huang, Yan Wang, Bin Huang, Xuejun Pan
Summary: The presence of Fe was found to greatly enhance the adsorption rate and capacity as well as photodegradation ability of plastic-char for treating persistent organic pollutants in aqueous media. Hydroxyl radical and holes were identified as the predominant reactive species contributing to the photodegradation of target contaminants.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Huan He, Tianguo Zhao, Qicheng Ma, Xiaoxia Yang, Qingsong Yue, Bin Huang, Xuejun Pan
Summary: This study constructed an efficient photoelectrocatalytic system using TiO2 nanotube arrays decorated with Ag/SnO2-Sb nanoparticles as the anode and Ti-Pd/SnO2-Sb as the cathode. The system showed high removal efficiency of antibiotics, antibiotic resistant bacteria (ARB) and antibiotic resistance genes (ARGs) in reclaimed water, while also reducing the ecotoxicity of chloramphenicol (CAP) solution. The study provides a potential alternative method for controlling antibiotic resistance and protecting the quality of reclaimed water.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Xianyao Zheng, Zhixiang Xu, Dimeng Zhao, Yu Luo, Chaochao Lai, Bin Huang, Xuejun Pan
Summary: The study found that humic acid has a dual-dose effect on the growth of Scenedesmus capricornus. At concentrations below 2.0 mgC/L, it slightly promotes growth, but significantly inhibits growth when concentrations exceed 2.0 mgC/L.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Xing Wan, Zhicheng Liao, Huan He, Min Shi, Guoxi Yu, Fenqing Zhao, Chaochao Lai, Yan Wang, Bin Huang, Xuejun Pan
Summary: Sediment dredging is effective in controlling endogenous pollution in lakes, but little attention has been paid to the desorption mechanism of dissolved organic matter (DOM) on pollutants and the change of biodiversity. This study investigated the physicochemical properties of DOM in sediment and its correlation with the desorption behavior of pollutants and aquatic organism biodiversity, using a sediment dredging project in Dianchi Lake as an example.
ENVIRONMENTAL RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Ziwei Guo, Yue Zhang, Shuchai Gan, Huan He, Nan Cai, Jingwei Xu, Pengran Guo, Bo Chen, Xuejun Pan
Summary: A novel catalyst, RM-BC, was synthesized to effectively degrade COVID-19 related drugs. The Fe species and oxygen-containing functional groups in RM-BC played crucial roles in drug removal. The study also investigated the effects of degradation conditions and water matrices.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Huan He, Yanting Lin, Xiaoxia Yang, Xintong Zhu, Wenxiao Xie, Chaochao Lai, Shanshan Yang, Zhe Zhang, Bin Huang, Xuejun Pan
Summary: 17alpha-ethinylestradiol (EE2) can cause serious harm to ecosystems and human health in natural waters. Dissolved organic matter (DOM) and iron minerals are commonly present in natural waters, affecting the half-life and transformation pathways of EE2. This study investigated the adsorption and degradation of EE2 on different iron minerals, and constructed a photo-Fenton system to simulate natural light conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Xing Wan, Haiyou Huang, Zhicheng Liao, Huan He, Qingsong Yue, Fenqing Zhao, Huang Huang, Bin Huang, Xuejun Pan
Summary: This study investigated the abundance, characteristics, and retention of microplastics (MPs) in different sewage treatment plants (STPs), as well as the ecological risks posed by MPs entering the environment. The results showed that a significant portion of MPs can be trapped and transferred into dewatered sludge during the sewage treatment process. The dominant colors of MPs were transparent, black, blue, red, pale brown, green, and gray, with the main species being polypropylene and polyethylene. Furthermore, MPs were found to be absorbed by oyster mushrooms, with fibrous materials widely distributed in their stipes and pileus.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Lijun Luo, Demei Meng, Lijin He, Xiaoxia Wang, Lihong Xia, Xuejun Pan, Fengzhi Jiang, Hongbin Wang, Jianhui Dai
Summary: A new porous catalyst was assembled and used to remove 17 alpha-ethinylestradiol in the presence of visible light and peroxydisulfate. The results showed that layered reduced graphene oxide played a significant role in the removal of the target pollutant within a short period of time.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Zhixiang Xu, Xin Long, Yue Jia, Dimeng Zhao, Xuejun Pan
Summary: The recent use of engineered nanomaterials in various industries poses a health risk to organisms and ecosystems. However, there is limited knowledge on the toxicity of nanomaterials in complex soil systems. This review examines the fate of engineered nanomaterials in soils, their toxicity to soil organisms, and the factors that control their toxicity. Factors such as soil properties, organic matter, and coexisting contaminants play a role in determining the toxicity of nanomaterials.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Review
Chemistry, Multidisciplinary
Zhixiang Xu, Yue Jia, Bin Huang, Dimeng Zhao, Xin Long, Siyuan Hu, Caiqing Li, Guohua Dao, Bo Chen, Xuejun Pan
Summary: With the increasing production and use of antibiotics, China has become a major source of antibiotic resistance genes, leading to higher pollution levels and posing a threat to human health. Studies have shown that eastern China has higher levels of antibiotics and resistance genes, with tetracycline and sulfanilamide resistance genes being the most prevalent. These genes can be found in water, soil, atmosphere, and wastewater.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Engineering, Environmental
Zhixiang Xu, Yue Jia, Xuanhe Zhang, Siyuan Hu, Yu Luo, Huan He, Bo Chen, Bin Huang, Xuejun Pan
Summary: Algae play an important role in the sunlight-driven degradation of environmental contaminants. This study investigated the role of algal organic matter (AOM) from Microcystis aeruginosa in tetracycline photodegradation. The results showed that different types of AOM promoted tetracycline degradation in different ways and efficiencies.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Zhixiang Xu, Dimeng Zhao, Xianyao Zheng, Kemeng Sheng, Yu Luo, Bo Chen, Bin Huang, Xiaoxia Yang, Xuejun Pan
Summary: This study investigated the aquatic toxic effects and mechanisms of MoS2 nanosheets on the freshwater green microalgae Selenastrum capricornutum. The results showed that low concentrations of single-layer MoS2 nanosheets stimulated algal growth, while higher concentrations inhibited growth through oxidative damage and membrane destruction. Additionally, MoS2 nanosheets accelerated the secretion of extracellular polymeric substances and changed their fluorescent components, thus influencing algal growth.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)