Article
Environmental Sciences
Yang Zhou, Linpeng Chen, Jialin Wang, Li Lu, Fei Liu, Cuibai Chen, Xiaopeng Qin
Summary: This study investigates the advantage of natural diatomite as a permeable reactive barrier material and compares its ability to load nitrifying bacteria with zeolite. The results show that diatomite can effectively adsorb ammonia nitrogen and has good regeneration ability. Compared with zeolite, diatomite can better load aerobic-heterotrophic microorganisms and exhibits faster ammonia nitrogen degradation rate and more abundant functional genes during the bioregeneration process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Shuju Fang, Gufeng Li, Hongyu Shi, Junxiu Ye, Hongbin Wang, Xuemei Ding, Lijun Luo, Guizhen Li, Min Yang
Summary: A low-cost functionalization method was used to prepare an efficient adsorbent for ammonia nitrogen from diatomite. The optimized conditions included modification with H2SO4, NaCl, and calcination, resulting in excellent adsorption performance of the functionalized diatomite (DTCA-Na). The adsorption process of ammonia nitrogen followed pseudo-first-order kinetics and Langmuir isothermal model. The removal efficiency of ammonia nitrogen remained above 80% even after multiple adsorption-desorption experiments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Junying Song, Xiaoqiang Cao, Zhanbin Huang
Summary: A diatomite-chitosan composite (CS-DE-10%) was prepared through an in-situ selfassembly method for efficient removal of vanadium from wastewater. The composite showed higher removal efficiency compared to diatomite and chitosan alone, attributed to its increased specific surface area and pore volume. The functional groups in the composite also played a role in enhanced removal ability. The adsorption process could be described by the pseudo-second order kinetic model and Freundlich isotherm model, involving physical adsorption, electrostatic interaction, and surface complexation.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Environmental Sciences
Abdullah Bayram, Emre Arkan, Mucahit Sutcu
Summary: This study compares the adsorption ability of clays and dead microorganisms against special toxic gases. Experimental investigations were conducted on kaolinite, metakaolinite, radiolarite, and diatomite for their adsorption kinetics to ammonia, ethylene, and carbon dioxide. Various analyses were performed for mineralogical and structural characterization of the materials. The results show that diatomite has the highest uptake efficiency among all materials, while metakaolinite has a lower response due to phase transformation. The adsorption behaviors are clarified with Langmuir isotherms, providing insights for using microorganisms as natural adsorbent materials in toxic gas environments.
Article
Energy & Fuels
Ying Sun, Xiaoqiang Liu, Zhongxi Han, Guiyun Tang
Summary: This study examines the competitive adsorption of CH4 and CO2 in shale, and investigates the mechanism and influence of carbon dioxide injection on increasing shale gas recovery using molecular dynamics and Grand Canonical Monte Carlo methods.
Article
Biotechnology & Applied Microbiology
Shengli Shi, Raul Ocampo-Perez, Junping Lv, Qi Liu, Fangru Nan, Xudong Liu, Shulian Xie, Jia Feng
Summary: A novel environmentally friendly diatomite-cross-linked beta-Cyclodextrin (DA@beta-CD) adsorbent was synthesized for the removal of bisphenol A (BPA), achieving higher removal capacities than diatomite. Factors influencing the removal capacities of DA@beta-CD were investigated, and the mechanism of BPA removal in the system may be coordinated by three adsorption type pathways. The stability and regeneration ability of DA@beta-CD make it a potential green and environmentally friendly adsorbent for practical applications.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Environmental Sciences
Y. Liu, Y. Zhang, X. R. Sheng, N. Li, Q. W. Ping, M. H. Niu, P. Lu, J. Zhang
Summary: Slow-release materials using diatomite have excellent adsorption-release properties, effectively controlling the release of phoxim. The release process is controlled by the Fick diffusion mechanism.
JOURNAL OF ENVIRONMENTAL INFORMATICS
(2021)
Article
Environmental Sciences
Xiaorong Song, Chenglin Li, Zhihui Chai, Yuan Zhu, Yuling Yang, Manyi Chen, Ruijia Ma, Xinquan Liang, Junhua Wu
Summary: In this study, diatomite was refined by a simple purification method of calcination combined with acid washing. The purified diatomite showed successful adsorption of gallic acid from molasses wastewater, providing a promising material for sugar mill wastewater pretreatment. The optimal purification conditions and adsorption characteristics were explored in detail, demonstrating the potential of purified diatomite as an effective adsorbent for GA removal.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biochemistry & Molecular Biology
Neset Erek Sen, Zeynep Mine Senol
Summary: Chitosan-diatomite composite beads (Ch-D) were synthesized and exhibited improved adsorption capacity for Allura red AC (AR) food dye through hydrogen bonding and electrostatic interactions. The Ch-D composite showed a removal rate of 98% at 25 degrees Celsius, natural pH value, and an initial AR dye concentration of 200 mg L-1. The maximum adsorption capacity was found to be 34.7 mg g-1. The interactions between functional groups on the Ch-D composite and AR dye involved pi-pi interactions, hydrogen bonds, and electrostatic interactions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Engineering, Environmental
Shuang Xu, Yunqing Luo, Zhanlian Han, Tong Zhang, Lianzhi Sun, Gaonan Zheng, Keying Wang, Zhiqiang Cheng
Summary: Diatomite-Trichoderma viride (DE-T. viride) composite microspheres designed via chemical bonding demonstrated excellent adsorption performance for anionic dyes and copper ions. The spheres exhibited ease of separation, stability, and recyclability, with selective adsorption for anionic dyes.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Xuebin Zhang, Yule Wang, Songhai Wu, Xingjian Dai, Yuxin Zhang, Li Feng, Xu Han
Summary: The study demonstrates that Schwertmannite (Sch) and diatomite-modified Sch (DMS) can effectively remove As(III), As(V) and P(V), with DMS-4 showing higher adsorption capacities and stability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Liang Tao, Wenjie Chen, Yuxin Liu, Feng Yang, Dong Liu, Junfen Liang, Saihong Liu, Hui Li
Summary: Soil acidification in southern China is exacerbated by human activities and increases the environmental risk of heavy metals, particularly cadmium (Cd). Long-term fertilizer use affects the biogeochemistry of heavy metals, whereby the quantity of phosphate (P) in soil is increased. This study investigated the interactions between goethite (alpha-FeOOH) and P(V)-Cd(II), and found that the presence of P(V) enhanced the Cd(II) adsorption process on alpha-FeOOH, resulting in a change in adsorption type. The dominant mechanisms underlying this promotion were found to vary at different P(V)/Cd(II) molar ratios.
Article
Chemistry, Physical
Xuekai Wang, Jinshu Wang, Jianjun Li, Yucheng Du, Junshu Wu, Heng He
Summary: A novel N-doped carbon@magnesium silicate (CMS) material was fabricated via a facile and low-cost hydrothermal route, possessing a high surface area and abundant functional groups. It exhibited strong adsorption capacity for both arsenic and tetracycline with monolayer adsorption characteristics. Various functional groups participated in the adsorption process through complexation, π-π EDA interactions, and hydrogen bonds. This work provides a simple and cost-effective method to fabricate N-doped carbon adsorbents with high surface area and abundant functional groups, which have great potential in practical sewage treatment applications.
Article
Chemistry, Physical
Guangyuan Yao, Yuqiang Liu, Shuilin Zheng, Ya Xu
Summary: Diatomite-based X zeolite with unique meso-microporous structure exhibited good ion exchange properties for Cu2+ and Zn2+, showing high adsorption capacities. The adsorption process was found to be endothermic and spontaneous, making it a promising adsorbent for wastewater treatment containing metal ions.
Article
Materials Science, Multidisciplinary
Chunyu Xiong, Qifang Ren, Shaohua Chen, Xinyu Liu, Zhen Jin, Yi Ding
Summary: The Ag3PO4/Fe3O4/Diatomite composites synthesized by the hydrothermal method showed excellent performance in photocatalysis, adsorption, and sterilization, with high degradation rate, adsorption capacity, and effective sterilization of Escherichia coli. Additionally, the composites were easily recycled in an external magnetic field and maintained a degradation rate above 95% after multiple cycles of photocatalysis.
MATERIALS TODAY COMMUNICATIONS
(2021)
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)