Article
Chemistry, Multidisciplinary
Lezhu Su, Lizhou Ou, Yujiao Wen, Yifan Wang, Weilin Zhao, Zhi Zhou, Mei-e Zhong, Yongfa Zhu, Nan Zhou
Summary: A novel N-doped carbon support CoFe2O4/Fe-0 hybrid catalyst was in situ formed by coprecipitation and calcination process, which showed high catalytic performance in degrading persistent organic pollutants like Quinclorac. The Fe-0 could activate peroxymonosulfate and reduce Co3+ synergistically, while the N-doped porous carbon strengthened electron transfer for pollutant degradation. High degradation efficiency was achieved in the system with good magnetic recovery properties, making it an ideal catalyst for organic pollutants removal.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Engineering, Environmental
Yangzhi Liu, Yanlong Wang, Ting Wu, Jiang Xu, Daohui Lin
Summary: Nanoscale zero-valent iron (nZVI) shows promise for remediating organochlorine-contaminated soil. However, the interactions between nZVI, soil organic matter (SOM), and dechlorinating bacteria are complex and may have uncertain effects on the degradation of organochlorines. This study investigates the biodechlorination of pentachlorophenol (PCP) with a specific bacterium (Burkholderia ambifaria strain L3) in the presence of nZVI and SOM. The results show that the cotreatment of nZVI and SOM enhances the PCP removal efficiency, with a synergistic effect observed. The nZVI-SOM cotreatment promotes microbial proliferation, microbial transformation of SOM, and higher electron transport capacity, leading to enhanced biodegradation. These findings provide valuable insights into the use of nZVI for environmental remediation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Ying Chen, Weiquan Li, Huaitian Bu, Weizhao Yin, Ping Li, Zhanqiang Fang, Jinhua Wu
Summary: In this study, an integrated system of Fe-0 and hydrogenotrophic microbes mediated by nitrate (NMB-Fe-0) was established to remediate Cd(II)-contaminated sediment. The results showed that the system successfully immobilized and enriched Cd(II)(aq) on iron surface through the promotion of iron corrosion and increased biomineral production. The Cd(II)(aq) removal rate in the NMB-Fe-0 system was much higher compared to the NM-Fe-0 system, and the leachability of Cd(II) decreased significantly while the residual fraction increased.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Green & Sustainable Science & Technology
Yangmin Ren, Junjun Ma, Yonghyeon Lee, Zhengchang Han, Mingcan Cui, Bin Wang, Mingce Long, Jeehyeong Khim
Summary: Pentachlorophenol (PCP) is a toxic pollutant commonly treated with zero-valent iron (ZVI) in groundwater. This study investigated the effects of carbon loading on the structure, specific surface, and hydrophobicity of AC-ZVI in order to improve reaction rate and selectivity when degrading PCP. The results showed that water contact angle and specific surface play important roles in determining the reactivity and selectivity of AC-ZVI during the reduction degradation of PCP.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Tuo Wang, Jian Zhang, Yunqian Song, Zhen Liu, Haojie Ding, Chun Zhao, Pu Wang
Summary: The novel water treatment process E-Fe-0-O-3, combining electrolysis, micro-size zero valence iron, and ozone, demonstrated remarkable synergy and high efficiency in removing refractory organic pollutants in various natural waters. This process showed superior removal rates and lower energy consumption compared to traditional methods.
Article
Engineering, Environmental
Siqi Liu, Andrey M. Kuznetsov, Weiqing Han, Alexei N. Masliy, Gregory Korshin
Summary: This study investigates the removal of dimethylarsinic acid (DMA) using a system combining zerovalent iron (ZVI) and powdered activated carbon (PAC). The results show that the ZVI/PAC system with 10 g/L ZVI and 2.5 g/L PAC can achieve a removal rate of 95% for DMA within 30 minutes, outperforming other conventional methods.
Article
Engineering, Environmental
Mohd Faizul Idham, Omar Falyouna, Ramadan Eljamal, Ibrahim Maamoun, Osama Eljamal
Summary: This study investigated the influence of GO precursor on the removal of chloramphenicol and optimized the removal conditions. The introduced novel GO served as an excellent precipitation medium and enhanced the removal efficiency, demonstrating better stability and recyclability.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Chemical
Penghuan Cheng, Youxin Zhou, Yali Liu
Summary: The study aimed to investigate the effects and mechanisms of zero-valent iron (ZVI) and granular activated carbon (GAC) on the biological degradation of pentachlorophenol (PCP) for methane production. The combination addition of ZVI and GAC showed higher removal efficiencies and enhanced PCP degradation rate in anaerobic reactor. Continuous flow experiments demonstrated improved operational stability and methane production of PCP wastewater with the addition of ZVI or ZVI/GAC.
DESALINATION AND WATER TREATMENT
(2021)
Article
Environmental Sciences
Yasmin Vieira, Hercules A. Pereira, Jandira Leichtweis, Clovia M. Mistura, Edson L. Foletto, Luis F. S. Oliveira, Guilherme L. Dotto
Summary: A promising technology based on Fe-0 catalyzed degradation reaction under microwave irradiation was developed to effectively treat real hospital wastewater, showing high removal efficiency for organic pollutants. The method, optimized through experimental conditions, successfully removed high concentrations of pharmaceuticals from hospital wastewater samples.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Changsheng Du, Haijun Chen, Weidong Gao, Wu Sun, Lei Peng, Nan Xu
Summary: The use of nano-zero valence iron (nZVI) synthesized with green tea extracts for heavy metal remediation has gained attention due to its low-cost, environmental safety, reproducibility, and stability. However, the effects of synthesis conditions on the physicochemical properties and suspensibility of nZVI, which are important for high reactivity, have not been fully understood. In this study, the zeta potentials, sedimentation, and lead removal capacity of nZVIs synthesized using green tea extracts were investigated. The results showed that nZVI synthesized using tea extracts extracted at 80℃ exhibited excellent activity and had outstanding suspensibility and reaction activity when synthesized in a volume ratio of 1:1 (tea extraction versus Fe2+ solution). The optimized nZVI successfully prepared had a lead removal capacity of 377.3 mg/g, which was seven times stronger than traditional chemically synthesized nZVI (50.31 mg/g).
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
(2023)
Article
Environmental Sciences
Guanbao Yao, Rui Tang, Haiping Luo, Shoujun Yuan, Wei Wang, Liwen Xiao, Xiangqian Chu, Zhen-Hu Hu
Summary: This study investigated the role of zero-valent iron (ZVI) in alleviating methanogenesis inhibition caused by the animal feed additive roxarsone. The results showed that the addition of ZVI effectively alleviated the methanogenesis inhibition induced by roxarsone, mainly through immobilization of arsenic onto ZVI and restoration of hydrogenotrophic methanogenic activity. Microbial community analysis revealed that the alleviation of methanogenesis inhibition was attributed to the enrichment of Methanobacterium and Methanosarcina.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Zhenyi Luo, Jingyu Zhu, Lei Yu, Ke Yin
Summary: The study found that the presence of microplastics inhibits the removal capacity of nZVI for Cu, Cr, Pb, and Zn metals in groundwater, with different desorption rates observed for different metal ions. Among the various microplastics investigated, PVC had the most adverse impact on metal desorption by promoting nZVI aging through electrostatic attraction.
ENVIRONMENTAL POLLUTION
(2021)
Article
Chemistry, Multidisciplinary
Xuehui Wei, Jianzong Wang
Summary: The structural evolution of EuNi2P2 under high pressure was studied using a diamond anvil cell and X-ray diffraction. The unique phase transition of this 122-type crystal was observed above 70 GPa, and the stability of the crystal at 9 GPa was confirmed. The crystal remained stable with a tetragonal phase during compression up to 137 GPa.
Article
Engineering, Environmental
Jinyu Hou, Yun Zhang, Xianghua Wu, Linmeng Liu, Yucheng Wu, Wuxing Liu, Peter Christie
Summary: The study found that zero-valent iron (ZVI) can promote the biomineralization of lindane, but it has a certain inhibitory effect on the growth and functions of soil bacterial community. Metagenomic analysis revealed that the genes involved in the degradation of lindane were upregulated, but the presence of genes responsible for lindane dechlorination was not confirmed. In addition, the benzoate biodegradation pathway linked to the downstream catabolism of lindane was enhanced.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Xiaonan Liu, Minghong Wu, Jian Zhao
Summary: The study synthesized nanoscale bimetallic Ni/Fe particles and found that Ni-nZVI exhibited better dechlorination performance for trichloroethylene (TCE) compared to nZVI, providing important evidence for the application of nano-metal binding in the environment.
Article
Engineering, Environmental
Shun-Shun Chen, Xu-Xiu Chen, Tian-Yu Yang, Li Chen, Zheng Guo, Xing-Jiu Huang
Summary: A temperature-modulated sensing strategy was proposed to identify and determine BTEX compounds. Highly effective identification of BTEX was achieved using linear discrimination and convolutional neural network analyses. Additionally, quantitative analysis of concentration was accomplished by establishing the relationship between concentration and response.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Myungkyung Noh, Jeong Yeon Sim, Jisung Kim, Jee Hwan Ahn, Hye-Young Min, Jong-Uk Lee, Jong-Sook Park, Ji Yun Jeong, Jae Young Lee, Shin Yup Lee, Hyo-Jong Lee, Choon-Sik Park, Ho-Young Lee
Summary: This study reveals that chronic exposure to PM induces chronic inflammation and development of COPD by dysregulating NAD+ metabolism and subsequent SIRT1 deficiency in pulmonary macrophages. Activation of SIRT1 by resveratrol effectively mitigates PM-induced inflammation and COPD development. Targeting metabolic and epigenetic reprogramming in macrophages induced by PM is a promising strategy for COPD treatment.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yu Liu, Linlin Qin, Yiming Qin, Tong Yang, Haoran Lu, Yulong Liu, Qiqi Zhang, Wenyan Liang
Summary: Co/NC/PAC electrode was prepared by compounding ZIF-67 with powder-activated carbon for the electrocatalytic treatment of nitrogen-containing heterocyclic compounds. The degradation efficiency of the four compounds reached 90.2-93.7% under optimal conditions, and the degradation order was pyridazine < pyrimidine < pyrazine < pyridine.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Julien Couturier, Pierre Tamba Oulare, Blanche Collin, Claire Lallemand, Isabelle Kieffer, Julien Longerey, Perrine Chaurand, Jerome Rose, Daniel Borschneck, Bernard Angeletti, Steven Criquet, Renaud Podor, Hamed Pourkhorsandi, Guilhem Arrachart, Clement Levard
Summary: This study analyzes the properties of bauxite residue samples and explores the influence of bauxite ore origin, storage conditions, and storage time. The results show that the speciation of yttrium is related to the origin of bauxite ore, while no significant variation was observed with storage conditions or aging of the residues.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Sakthinarenderan Saikumar, Ravi Mani, Mirunalini Ganesan, Inbakandan Dhinakarasamy, Thavamani Palanisami, Dharani Gopal
Summary: Microplastic contamination in marine ecosystems poses a growing concern due to its trophic transfer and negative effects on marine organisms. This study investigates the transfer and impacts of polystyrene microplastics in an estuarine food chain. The results show that microplastics can be transferred through the food chain, although the transfer rates are low. The exposed organisms exhibit stress responses, suggesting the potential risk of microplastics reaching humans through the food chain.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Review
Engineering, Environmental
Yan-Jiao Li, Ying Yuan, Wen-Bing Tan, Bei-Dou Xi, Hui Wang, Kun-Long Hui, Jia-Bao Chen, Yi-Fan Zhang, Lian-Feng Wang, Ren-Fei Li
Summary: This review investigated and analyzed the distribution, composition, and abundance of heavy metals and antibiotic resistance genes (ARGs) in landfill. The results showed that heavy metals have lasting effects on ARGs, and complexes of heavy metals and organic matter are common in landfill. This study provides a new basis to better understand the horizontal gene transfer (HGT) of ARGs in landfill.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Jessy Joseph, Ari Vaisanen, Ajay B. Patil, Manu Lahtinen
Summary: Efficient and environmentally friendly porous hybrid adsorbent beads have been developed for the removal of arsenic from drinking water. The structural tuning of the adsorbents has been shown to have a significant impact on their adsorption performance, with high crystallinity leading to increased adsorption capacity and selectivity towards As5+.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yangyang Liu, Minhua Xiao, Kaiqin Huang, Juntao Cui, Hongli Liu, Yingxin Yu, Shengtao Ma, Xihong Liu, Meiqing Lin
Summary: This study measured the levels of phthalate metabolites in breast milk collected from mothers in southern China. The results showed that phthalates are still prevalent in the region, and breastfeeding contributes to phthalate intake in infants. However, the levels detected do not pose significant health risks to infants based on dietary exposure. The increasing exposure to certain phthalates calls for further research into their sources and potential risks.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhiqiang Wu, Jianxing Sun, Liting Xu, Hongbo Zhou, Haina Cheng, Zhu Chen, Yuguang Wang, Jichao Yang
Summary: Ocean depth affects microbial diversity, composition, and co-occurrence patterns of microplastic microbial communities. Deterministic processes dominate the assembly of mesopelagic plastisphere microbial communities, while stochastic processes shape the assembly of bathypelagic microbial communities. The relationships between microorganisms in the mesopelagic layer are more complex and stable, with Proteobacteria and Actinobacteriota playing important roles.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Tingting Xiao, Renjie Chen, Chen Cai, Shijie Yuan, Xiaohu Dai, Bin Dong, Zuxin Xu
Summary: Based on the efficiency of catalytic ozonation techniques in enhancing sludge dewaterability, this study investigated its effectiveness in simultaneous reduction of antibiotics and antibiotic resistance genes. The results showed that catalytic ozonation conditioning changed the distribution of antibiotics and achieved high degradation rates. It also significantly reduced the abundance of ARGs, inhibited horizontal gene transfer, and decreased the signal transduction of typical ARGs host bacteria.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Yang Deng, Xiaohong Guan
Summary: This article discusses two different development approaches for ferrate(VI) technology in water treatment, arguing that process integration is a promising method that can drive technological innovation and revolution in water treatment, achieving higher treatment efficiency, reduced costs and energy consumption, and a smaller physical footprint.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhe Zhang, Lu Zhang, Zhihao Huang, Yuxin Xu, Qingqing Zhao, Hongju Wang, Meiqing Shi, Xiangnan Li, Kai Jiang, Dapeng Wu
Summary: In this study, a floating catalytic foam was designed and prepared to enhance the mass transfer in immobilized photocatalysts for wastewater treatment. The floating catalytic foam could float on the water surface and establish a temperature gradient, effectively promoting the diffusion and adsorption of target molecules during the photocatalytic process.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Muhammad Nafees, Adiba Khan Sehrish, Sarah Owdah Alomrani, Linlin Qiu, Aasim Saeed, Shoaib Ahmad, Shafaqat Ali, Hongyan Guo
Summary: The accumulation of cadmium and antibiotics in edible plants and fertile soil is a worldwide problem. This study investigated the potential of zinc oxide nanoparticles to alleviate the toxicity of both cadmium and antibiotics and promote spinach growth.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Lurui Wan, Kai Wang, Yuan Chen, Zhiyong Xu, Wenbo Zhao
Summary: In this study, a low viscosity and high thermal stability SO2 absorbent with dual interacting sites was successfully synthesized. The absorbent showed the highest absorption enthalpy change and entropy change values among reported SO2 absorbents, and exhibited lower viscosity and comparable thermal stability to ILs.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Engineering, Environmental
Zhengwei Zhou, Guojie Ye, Yang Zong, Zhenyu Zhao, Deli Wu
Summary: This study utilized Mo powder and STPP to enhance the performance of the sodium percarbonate system in pollutant degradation. The presence of Mo and STPP resulted in a higher degradation rate of the model pollutant SMX, with low oxidant consumption. The system generated multiple active species through a series of chain reactions at different pH values, exhibiting excellent performance towards electron-rich pollutants. Furthermore, Mo demonstrated excellent stability and reusability.
JOURNAL OF HAZARDOUS MATERIALS
(2024)