Article
Engineering, Chemical
Xianke Sun, Yanxin Qin, Wen Zhou
Summary: This paper studied the degradation of amoxicillin by ultrasound-zero valent iron activated sodium persulfate and optimized the best degradation conditions. The research found that ultrasonic power, sulfate concentration, and zero-valent iron dosage have significant impacts on the removal efficiency of amoxicillin.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Minda Yu, Xuhui Mao, Xiaosong He, Mingxia Zheng, Xu Zhang, Jing Su, Beidou Xi
Summary: This study demonstrates the enhancement of peroxide activation efficiency and organic contaminant degradation by mechanically silicified microscale zero-valent iron (mZVI). The silicification process improves the generation of reactive intermediates, resulting in a significant increase in sulfamethazine removal rate. Continuous generation of ferrous ions in the Si-mZVI(bm)/PDS system after silicification contributes to the excellent performance of peroxide activation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Materials Science, Ceramics
Shuyuan Li, Wenjie Zhang, Zhao Lv, Yue Zhang
Summary: ZnTiO3 supported on quartz microspheres reduces aggregation and enhances photocatalytic activity. Support on quartz microspheres increases the bandgap energy of ZnTiO3. The support has a significant effect on pore volume and surface area. The support reduces hole electron recombination efficiency. Supported ZnTiO3 exhibits superior photocatalytic activity compared to pure ZnTiO3.
CERAMICS INTERNATIONAL
(2022)
Article
Environmental Sciences
Xingya Wei, Changjun Li, Naiyun Gao
Summary: This study demonstrated that sulfate radical produced from persulfate by zero-valent iron can effectively degrade acyclovir. The optimal degradation conditions were identified and the main degradation pathways and intermediates were proposed. Although the mineralization rate was not high, ZVI/PS oxidation was proven to be a viable treatment method for acyclovir-induced water pollution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Yehan Xiong, Ting Zhou, Jianguo Bao, Jiangkun Du, Muhammad Faheem, Liting Luo
Summary: This study investigated the synchronous activation of H2O2 and persulfate by sulfidated zero valent iron in ambient conditions for Fenton-like oxidation of bisphenol S. The activation of sulfidated zero valent iron induced H2O2 or persulfate could be greatly enhanced with the assistance of persulfate and H2O2, respectively, even across a wide range of pH value. The study demonstrated that the system could be a more efficient, advanced oxidation technology capable of being used across a broad pH range for the degradation of emerging pollutants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Xi Ni, Qiang Li, Kun Yang, Huiyuan Deng, Dongsheng Xia
Summary: In this study, Congo red (CR) was degraded using different particle sizes of zero-valent copper (ZVC) activated persulfate (PS). The degradation efficiency varied with ZVC particle size, with 50 nm and 500 nm ZVC achieving higher removal rates of CR compared to 15 μm ZVC. The coexistence of certain anions promoted the degradation, while others were detrimental. The smaller the ZVC particle size, the stronger the influence of coexisting anions on the degradation. The degradation pathways and mineralization of CR were identified, and the potential application of 50 nm ZVC in dyeing wastewater treatment was demonstrated with high degradation efficiency even after multiple cycles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Gong Cheng, Yibo Zhang, Lei Sun, Jing Wan, Zhang Li, Chenyuan Dang, Jie Fu
Summary: The combination of MWUV and ME systems showed a synergistic effect in degrading reactive brilliant red X-3B. The presence of Fe3+ enhanced the generation of center dot OH, improving the photocatalytic efficiency. Lowering the initial solution pH and increasing iron filing dosage and dissolved oxygen concentration were beneficial for enhancing the degradation efficiency.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Jiayan Zhu, Lishan Zhang, Junyong Liu, Shan Zhong, Pin Gao, Jinyou Shen
Summary: This study compared the performance of a permeable reactive barrier formed with nanoscale particles of zero-valent iron to that of a limestone barrier in dechlorinating trichloroethylene. The results demonstrated that the ceramsite barrier had a higher removal rate for trichloroethylene and phosphorus compared to the limestone barrier, and remained 85% effective after 365 days of use.
Article
Engineering, Environmental
Chen Ling, Shuai Wu, Jiangang Han, Tailu Dong, Changqing Zhu, Xiuwen Li, Lijie Xu, Ying Zhang, Minghua Zhou, Yuwei Pan
Summary: In this study, sulfide-modified zero-valent iron was used to activate periodate for the removal of sulfadiazine. The S-Fe-0/PI process was found to be highly efficient in removing SDZ, with minimal leaching of iron. Additionally, the process was able to mineralize SDZ and reduce its toxicity.
Article
Engineering, Environmental
Ziyu Zou, Ercheng Zhao, Pingzhong Yu, Junjie Jing, Ying Li, Baotong Li, Junxue Wu
Summary: This study investigated the degradation of neonicotinoids in soil using a nanoscale zero-valent iron-activated persulfate process. The results showed that the neonicotinoids could be effectively degraded under optimal conditions, and the degradation pathways were proposed based on identified intermediates.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Agricultural Engineering
Chenbo Dai, Libin Yang, Jun Wan, Dezhen Li, Yalei Zhang, Xuefei Zhou
Summary: The combination of ZVI and GAC was found to enhance anaerobic digestion of pharmaceutical wastewater, increasing COD removal and methane production while reducing the levels of toxic compounds and biotoxicity. This was attributed to the establishment of direct interspecies electron transfer (DIET), which also led to changes in microbial community composition and pathways of methane production.
BIORESOURCE TECHNOLOGY
(2022)
Article
Energy & Fuels
Chaochen Fu, Xiangyu Chen, Benyi Xiao, Junxin Liu
Summary: The effects of three typical chemical conditioners, namely polyaluminium chloride (PAC), polyferric sulfate (PFS), and polyacrylamide (CPAM), on the adsorption performances of sludge biochar were studied. CPAM and PAC increased the surface area and adsorption capacity of biochar, while PFS decreased them. The adsorption of X-3B onto the biochar was influenced by various factors and fitted well with the pseudo-second-order model and the Langmuir isotherm model. The conditioners reduced the total cost of biochar preparation, with PAC being the preferred choice.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Environmental Sciences
Jialin Liang, Xiaojian Liao, Maoyou Ye, Zhijie Guan, Zhihua Mo, Xian Yang, Shaosong Huang, Shuiyu Sun
Summary: The study compared the activation of peroxymonosulfate (PMS) by zero-valent iron (Fe-0) and zero-valent aluminum (Al-0) for waste activated sludge (WAS) conditioning. Fe-0/PMS treatment showed superior dewaterability of WAS and reduced operational costs compared to Al-0/PMS treatment. The study proposes a novel perspective for selecting an optimal PMS activator in sludge treatment to alleviate environmental risks.
Article
Engineering, Environmental
Yingzi Lin, Jing Chen, Mingliang Zhou, Gen Liu, Siwen Li, Chunyan Shi, Mengshi Wang, Shenglin Qi
Summary: This paper discusses the efficiency and mechanism of using nitrilotriacetic acid (NTA) as a complexing agent to enhance the zero-valent iron (Fe0)/peroxymonosulfate (PMS) system for the removal of sulfamethazine (SMZ) from water. The research results show that the addition of NTA increases the soluble iron content and the decomposition rate of PMS. Additionally, different inorganic ions, such as Cl-, have been found to affect the degradation of SMZ. In actual water bodies, the PMS/Fe0/NTA system can degrade SMZ up to 79.36%. Toxicity tests demonstrate a decrease in the inhibition rate of luminescent bacteria after degradation.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Chemical
Chengfeng Yang, Kuiling Li, Lili Xu, Zhiyong Wang, Ling Yu, Jun Wang
Summary: The mZVI/PVDF composite membrane successfully addressed the challenges of easy agglomeration, oxidation, loss, and difficult reuse faced by bare mZVI, maintaining 100% nitrobenzene degradation in eight cycles. The detailed study on the degradation process provided insights for optimizing the use of mZVI.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Zhengqing Cai, Yining Huang, Haodong Ji, Wen Liu, Jie Fu, Xianbo Sun
Summary: A novel g-C3N5/Bi4O5Br2 surface heterojunction was developed for efficient sulfathiazole degradation, achieving remarkable charge transfer and separation through matched energy band structure, showing promising application potential.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Yucheng Zhang, Xiaotong Su, Nora F. Y. Tam, Xiaolan Lao, Meiling Zhong, Qihang Wu, Huifang Lei, Zihui Chen, Zhang Li, Jie Fu
Summary: The aggregation kinetics of polystyrene nanoplastics (PS-NPs) in the aquatic environment are influenced by metal cation concentration and solution pH. Different sizes of PS-NPs exhibit different aggregation patterns for monovalent and divalent cations. PS-NPs have the capability to adsorb heavy metal cations and transport them over long distances.
CHINESE CHEMICAL LETTERS
(2022)
Article
Environmental Sciences
Fang Yin, Chen Gao, Zhibo Song, Yuling Han, Zhiwei He, Li Zhang, Penghao Su, Daolun Feng, Tao Yang, Jie Fu
Summary: This study characterized the parent and alkylated polycyclic aromatic hydrocarbons (PAHs) in gaseous and particulate emissions from the in situ burning (ISB) of oils. The experimental results indicated that the burning of heavy oil produced the most PAH emissions, and the distribution patterns of alkylated PAHs in emissions could indicate their sources in the ISB processes.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Yanting Wang, Yushun Yang, Chenyuan Dang, Bin Lu, Yin Luo, Jie Fu
Summary: The hepatocytotoxicity and aryl hydrocarbon receptor (AHR) activity of decabromodiphenyl ethane (DBDPE), decabromodiphenyl ether (BDE209) and other 18 analogues were evaluated in vitro using human normal liver cell L02. The AHR signaling pathway was found to be the key mediation mechanism for the hepatotoxicity of DBDPE/BDE209. Formation of reactive oxygenated intermediates by cytochrome P450s (CYP2 family) was identified as the dominant toxic mechanism. The health risk of DBDPE may be greater than expected due to the potential formation of dioxin-like intermediates through microbial oxidation of the ethyl group.
ENVIRONMENTAL TOXICOLOGY
(2023)
Article
Engineering, Environmental
Zijin Liu, Xianbo Sun, Jie Fu, Wen Liu, Zhengqing Cai
Summary: This study provides theoretical and experimental insights into the influence of nitrogenous compounds on the photodegradation of PAHs in water environments. The results demonstrate that nitrate can effectively enhance the photodegradation of PHE, while ammonia has negligible effects. The presence of halogen ions in seawater inhibits the promoting effects of nitrate on PHE degradation. The study also proposes possible degradation pathways for PHE based on GC-MS analysis and DFT calculation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Yibo Zhang, Ming Li, Fang Chang, Malan Yi, Hongmei Ge, Jie Fu, Chenyuan Dang
Summary: This study investigates the differences in responses between cyanobacteria and green algae, which are the recommended test organisms for toxicity assessments, to the same chemical. The results show that these two species have different resistance mechanisms and can alleviate the toxicity of sulfamethoxazole through different pathways. Inconsistent assessment results for antibiotics using cyanobacteria and green algae are likely due to their different resistance mechanisms. Improved indicators or comprehensive assessment methods should be considered for environmental toxicity assessments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Microbiology
Zhenbing Wu, Qianqian Zhang, Jicheng Yang, Jinyong Zhang, Jie Fu, Chenyuan Dang, Mansen Liu, Shuyi Wang, Yaoyao Lin, Jingwen Hao, Meiqi Weng, Derong Xie, Aihua Li
Summary: This study revealed the impact of vaccination on the symbiotic microbiota and intestinal metabolism of Nile tilapia, as well as the correlation between them. The vaccination significantly changed the structure and composition of intestinal mucosal microbiota, leading to a decrease in potential opportunistic pathogens. Additionally, the vaccination altered the concentrations of various metabolites in the intestines, indicating its influence on intestinal metabolism.
Article
Chemistry, Physical
Xudong Yang, Fan Li, Wen Liu, Long Chen, Juanjuan Qi, Weiliang Sun, Fei Pan, Tao Duan, Fengbin Sun
Summary: Tungsten oxide nanowires (WO3_x) with rich oxygen vacancies (OVs) were prepared through a hydrothermal method, demonstrating high adsorption capacity and photocatalytic activity. The WO3_x successfully removed 95.1% of U(VI) at pH 5, with 79.9% being transformed to U(IV) for reductive immobilization. Compared to conventional WO3, WO3_x exhibited narrower band gap energy, higher charge carrier separation, and faster transfer rates, attributed to its construction of oxygen vacancies.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Yidong Guan, Zhang Li, Lidong Huang, Yin Luo, Jie Fu
Summary: This study described the compositions of sediment bacterial communities in the urban riverbank over the spatial gradient. Different types of effluents affected the bacterial community in different regions. Parameters such as NH4+-N, organic matter, effective sulphur, electrical conductivity, and total dissolved solids were correlated with higher microbial richness and biodiversity. Organic matter, total nitrogen, NH4+-N, NO3-N, pH, and effective sulphur were identified as important drivers for bacterial community distribution. Proteobacteria was the predominant phylum in sediments, with Serratia as the dominant genus. Sulphate-reducing bacteria, nitrifiers, and denitrifiers were detected at sites and closely related to contaminants. This study expanded our understanding of the impact of municipal effluents on microbial communities in riverbank sediments and provided valuable information for further exploration of microbial community functions.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Fukang Zheng, Yanhui Cheng, Huiyu Dong, Lei Sun, Fei Pan, Xiangjuan Yuan
Summary: An emerging advanced oxidation process, ozone/peracetic acid (O3/PAA), was investigated for the abatement of atrazine (ATZ). The results showed that the O3/PAA process exhibited outstanding performance in degrading ATZ with high removal efficiency. The dosage of PAA and solution pH significantly affected the degradation performance.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Chenyuan Dang, Yibo Zhang, Maosheng Zheng, Qiyue Meng, Jia Wang, Yuening Zhong, Zhenbing Wu, Bingchuan Liu, Jie Fu
Summary: This study investigated the effect of chlorine on the microbiome and microbial chlorine resistance in the activated sludge of the aerobic treatment process. The results showed that chlorine had a dose-dependent negative impact on nitrogen/COD removal in the aerobic treatment process, and the microbial community in activated sludge was influenced by both chlorine dose and interaction time. Some microorganisms were able to survive in chlorinated conditions by up-regulating the expression of chlorine resistance genes (CRGs).
Article
Engineering, Environmental
Jing Wan, Juefei Ye, Yibo Zhang, Zhang Li, Zhenbing Wu, Chenyuan Dang, Jie Fu
Summary: In this paper, the interaction of silver nanoparticles (Ag-NPs) with marine/lake snow in the early formation stage was investigated. Results showed that Ag-NPs promoted the accumulation of larger marine snow flocs while inhibited the development of lake snow. The promotion effect of Ag-NPs was attributed to their oxidative dissolution into silver chloride complexes in seawater and incorporation into marine snow, while Ag-NPs in lake water existed as colloidal nanoparticles and suppressed the growth of lake snow due to their strong antimicrobial effect. Furthermore, Ag-NPs also affected the microbial community of marine/lake snow, including impacting microbial diversity and elevating the abundances of extracellular polymeric substances synthesis genes and silver resistance genes.
Editorial Material
Microbiology
Fang Zhang, Huijie Hou, Jie Fu, Juan-Rodrigo Bastidas-Oyanedel
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Engineering, Environmental
Limin Jin, Yifan Ren, Wentian Zheng, Fei Pan, Shijie You, Yanbiao Liu
Summary: In this study, an electrofiltration system with a flow-through configuration was demonstrated, using an electrified hydroxyl-terminated Ti3C2T x MXene (h-Ti3C2T x ) filter to achieve near complete removal of ultralow concentration phosphate (5 mg P/L). Increasing either the applied voltage or the flow rate enhanced the phosphate sorption kinetics of the filter, which is attributed to the synergistic effects of plentiful sorption sites, electrochemical enhancement, and flow-through design. The mechanism of phosphate sorption involved interlayer diffusion and surface complexation, offering a promising paradigm for efficient water purification.
ACS ES&T ENGINEERING
(2023)
Article
Environmental Sciences
Fei Pan, Yuxuan Ye, Qinrong Wang, Jie Fu, Dongsheng Xia, Wen Liu
Summary: A study investigated the biological effect of titanium nanomaterials in a sequencing batch reactor (SBR) by adding various doses of titanium dioxide (TiO2) and titanate nanotubes (TNTs). The results showed that both TNTs and TiO2 had a moderate suppressing effect on SBR performance, with TiO2 being more toxic. High-throughput sequencing and analysis revealed changes in the microbial community composition in the SBR caused by the two titanium nanomaterials, with genus Hylemonella identified as the biomarker contributing the most to the community response. Metagenomic analysis showed that the presence of nanomaterials downregulated metabolic pathways related to metabolism and led to the degradation of xenobiotics and pollutants, which correlated with the decrease in treatment performance of SBR. Exposure tests with Escherichia coli and Pseudomonas taiwanensis demonstrated the nanotoxic mechanisms of TiO2 and TNTs, including interactions with the microbial cell surface and elevation of cellular reactive oxygen species (ROS) levels. These nanotoxic effects could also be attributed to enhanced community functions.
