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A Multi-Stage Green Barrier Strategy for the control of Global SARS-CoV-2 Transmission via Cold Chain Goods

Engineering 2022年第2期8卷 13-16页

作者： Xu He Xinwang Liu Pan Li Panpan Wang Haijun Cheng Wenqian Li Boda Li Ting Liu Jun Ma State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyHarbin 150090China State Key Laboratory of Pollution Control and Resource Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China

*** object-to-human transmission route of SARS-CoV-2 At the time of writing,coronavirus disease 2019(COVID-19),which is caused by the severe acute respiratory syndrome coron-avirus 2(SARS-CoV-2),has been a global pandemic for more than a *** of 22 September 2021,the global cumulative incidence exceeds 229 million cases,and the number of deaths has exceeded 4.75 million[1].The current situation of epidemic prevention and control within the countries around the world can be roughly divided into two stages:the pandemic stage that the United states,the United Kingdom,and India are still experiencing(as of 23 September 2021,newly reported cases in the last 24 h in the United states,United Kingdom,and India are 202840,31095,and 26964,respectively[1]);and the normalized epidemic pre-vention and control stage that countries such as China and New Zealand are currently in.

关键词： prevention Strategy Chain

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The longevity evaluation of multi-metal stabilization by MgO in Pb/Zn smelter–contaminated soils

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Environmental Science and pollution Research 2024年第19期31卷 28153-28165页

作者： Xu, Ze-Lin Xu, Da-Mao Li, Hai-Xuan Li, Hao-Kai Fu, Rong-Bing State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and Engineering Tongji University Shanghai200092 China Centre for Environmental Risk Management and Remediation of Soil and Groundwater Tongji University Shanghai200092 China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092 China

The re-mobilization risks of potentially toxic elements (PTEs) during stabilization deserve to be considered. In this study, artificial simulation evaluation methods based on the environmental stress of freeze–thaw (F-T), acidification and variable pH were conducted to assess the long-term effectiveness of PTEs stabilized by MgO in Pb/Zn smelter contaminated soils. Among common stabilizing materials, MgO was considered as the best remediation material, since PTEs bioavailability reduced by 55.48% for As, 19.58% for Cd, 10.57% for Cu, and 26.33% for Mn, respectively. The stabilization effects of PTEs by MgO were best at the dosage of 5 wt%, but these studied PTEs would re-mobilize after 30 times F-T cycles. Acid and base buffering capacity results indicated that the basicity of contaminated soils with MgO treatment reduced under F-T action, and the leached PTEs concentrations would exceed the safety limits of surface water quality standard in China (GB3838–2002) after acidification of 2325 years. No significant changes were found in the pH-dependent patterns of PTEs before and after F-T cycles. However, after F-T cycles, the leaching concentrations of PTEs increased due to the destruction of soil microstructure and the functionality of hydration products formed by MgO, as indicated by scanning electron microscopy (SEM) coupled with energydispersive Xray spectroscopy (EDS) results. Hence, these findings would provide beneficial references for soil remediation assessments of contaminated soils under multi-environmental stress. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.

关键词： Biochemistry

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Process,influence factors and mechanism of direct generation of zinc metal using laser to irradiate ZnS

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Transactions of Nonferrous Metals Society of China 2025年第2期35卷 613-624页

作者： Ying CHEN Ning DUAN Lin-hua JIANG Hao JIN Yao WANG Yong LIU State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and EngineeringTongji UniversityShanghai 200092China Shanghai Institute of Pollution Control and Ecological Security Shanghai 200092China

The generation process,influence of the laser parameters on the production of zinc metal(Zn^(0)),and the mechanism of interaction between the laser and ZnS were *** was observed that an increase in the number of S defects enhanced the quantity of Zn^(2+)ejected from the ZnS crystals,which increased the possibility of Zn^(2+)bonding with electrons to produce Zn^(0).A maximum Zn^(0) content of 9.3%in the products was detected upon changing the laser *** analyzing the changes in the surface topography during the laser interaction with ZnS,it was shown that the interaction mechanism between laser and ZnS had a synergistic effect comprised of photochemical and photothermal processes,in which the photochemical mechanism predominated.

关键词： laser metallurgy sulfur defects surface topography photochemical reduction zinc metal

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Biochar nanoparticles-mediated transport of organic contaminants in porous media: dependency on contaminant properties and effects of biochar aging

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Carbon Research 2023年第1期2卷 1-15页

作者： Ma, Pengkun Qi, Zhichong Wu, Xuan Ji, Rong Chen, Wei College of Environmental Science and Engineering Ministry of Education Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution Control Nankai University Tianjin300350 China China Water Resources Beifang Investigation Design and Research Co. Ltd. Tianjin300222 China College of Chemistry and Chemical Engineering Henan Joint International Research Laboratory of Environmental Pollution Control Materials Henan University Kaifeng475004 China State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing210023 China

Land application of biochar has been recommended as an effective soil amendment measure. Nonetheless, the applied biochar can accumulate co-existing contaminants. Meanwhile, nanoparticles formed due to biochar disintegration may facilitate contaminant transport in vadose zone and groundwater, posing a potential risk to the subsurface environment. Here, we show that the presence of pinewood- and rice straw-derived biochar nanoparticles (BCNPs) at parts per million level (~ 20 mg/L) can result in significant mobilization of hydrophobic, nonpolar contaminants (naphthalene and pyrene) and positively charged polar contaminants (trimethoprim and ciprofloxacin) in saturated sandy soil, but slightly inhibits the transport of negatively charged or neutral hydrophilic compounds (sulfamethoxazole and bisphenol A). With supplemental adsorption and desorption experiments we show that the ability of BCNPs in mediating contaminant transport (either enhancing or inhibiting) relies primarily on the extent of irreversible binding of a contaminant to the BCNPs. Sulfide reduction and leaching of organic carbon, two relatively mild (in terms of modification of physicochemical properties, e.g., surface O/C ratio) but widely occurring aging processes, facilitate co-transport of pyrene and bisphenol A with the BCNPs. However, this is mainly the result of increased mobility of the BCNPs (i.e., the carrier), rather than enhanced interactions between the BCNPs and the contaminants being carried. The findings underline the significant effects of BCNPs on the fate and transport of environmental contaminants, and further highlight the important role of aging in affecting environmental behaviors and effects of biochar materials. Graphical Abstract: [Figure not available: see fulltext.] © 2023, The Author(s).

关键词： Naphthalene

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A hybrid fuel cell for water purification and simultaneously electricity generation

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Frontiers of Environmental Science & Engineering 2023年第1期17卷 121-132页

作者： Yujun Zhou Qinghua Ji Chengzhi Hu Huijuan Liu Jiuhui Qu Key Laboratory of Drinking Water Science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing 100084China Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological EngineeringNanjing University of Science and TechnologyNanjing 210094China

The development of highly efficient energy conversion technologies to extract energy from wastewater is urgently needed,especially in facing of increasing energy and environment ***,we successfully fabricated a novel hybrid fuel cell with BiOCl-NH_(4)PTA as *** polyoxometalate(NH_(4)PTA)act as the acceptor of photoelectrons and could retard the recombination of photogenerated electrons and holes,which lead to superior photocatalytic *** utilizing BiOCl-NH_(4)PTA as photocatalysts and Pt/C air-cathode,we successfully constructed an electron and mass transfer enhanced photocatalytic hybrid fuel cell with flow-through field(F-HFC).In this novel fuel cell,dyes and biomass could be directly degraded and stable power output could be *** 87%of dyes could be degraded in 30 min irradiation and nearly 100%removed within 90 *** current density could reach up to~267.1μA/cm^(2);with maximum power density(Pmax)of~16.2μW/cm^(2) with Rhodamine B as organic pollutant in *** power densities were 9.0μW/cm^(2),12.2μW/cm^(2),and 13.9μW/cm^(2) when using methyl orange(MO),glucose and starch as substrates,*** hybrid fuel cell with BiOCl-NH_(4)PTA composite fulfills the purpose of decontamination of aqueous organic pollutants and synchronous electricity ***,the novel design cell with separated photodegradation unit and the electricity generation unit could bring potential practical application in water purification and energy recovery from wastewater.

关键词： Flow-through field Hybrid fuel cell Polyoxometalates Water purification Electricity generation

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Mechanisms of allicin exposure for the sludge fermentation enhancement:Focusing on the fermentation processes and microbial metabolic traits

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Journal of Environmental Sciences 2022年第5期34卷 253-264页

作者： Feng Wang Jingyang Luo Shiyu Fang Wenxuan Huang Yunqi Zhang Le Zhang Xiaoshi Cheng Wei Du Fang Fang Jiashun Cao Yang Wu Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes Ministry of EducationHohai UniversityNanjing 210098China College of Environment Hohai UniversityNanjing 210098China State Key Laboratory of Pollution Control and Resource Reuse School of Environmental Science and EngineeringTongji UniversityShanghai 200092China

As a frequently used product with antimicrobial activity,consumed allicin might be dis-charged and concentrated in waste-activated sludge(WAS).However,the influence of al-licin(as an exogenous pollutant)on WAS fermentation has not been clearly *** study aimed to disclose the impacts of allicin on volatile fatty acid(VFA)generation dur-ing WAS *** results showed that the appropriate presence of allicin(10 mg/g TSS)significantly enhanced the VFA yield(1894 versus 575 mg COD/L in the control)with increased acetate proportion(24.3%).Further exploration found that allicin promoted WAS solubilization,hydrolysis and acidification *** analysis revealed that the key genes involved in extracellular hydrolysis metabolism(i.e.,CAZymes),mem-brane transport(i.e.,gtsA and ytfT),substrate metabolism(i.e.,yhdR and pfkC)and fatty acid synthesis(i.e.,accA and accD)were all highly *** also induced the bacteria to produce more signalling molecules and regulate cellular functions,thereby enhancing the microbial adaptive and regulatory capacity to the unfavourable ***,the variations in fermentative microbes and their contributions to the upregulation of func-tional genes(i.e.,ytfR,gltL,INV,iolD and pflD)for VFA generation were ***,the simultaneous stimulation of functional microbial abundances and metabolic activities contributed to VFA production in allicin-conditioned reactors.

关键词： Allicin Waste activated sludge(WAS) Anaerobic fermentation Metagenomic analysis Functional genes

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N-doped CoAl oxides from hydrotalcites with enhanced oxygen vacancies for excellent low-temperature propane oxidation

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Journal of Environmental Sciences 2022年第6期34卷 79-89页

作者： Enhui Wu Daifeng Lin Yinye Chen Xiaoshan Feng Kui Niu Yongjin Luo Baoquan Huang Jianbin Qiu Qingrong Qian Qinghua Chen Fujian Key Laboratory of Pollution Control&Resource Reuse Fujian Normal UniversityFuzhou 350007China College of Environmental Science and Engineering Fujian Normal UniversityFuzhou 350007China

A series of nitrogen-doped CoAlO(N-CoAlO)were constructed by a hydrothermal route combined with a controllable NH_(3) treatment *** effects of NH_(3) treatment on the physico-chemical properties and oxidation activities of N-Co AlO catalysts were *** comparison to CoAlO,a smallest content decrease in surface Co^(3+)(serving as active sites)while a largest increased amount of surface Co^(2+)(contributing to oxygen species)are obtained over N-Co AlO/4h among the N-CoAlO ***,a maximum N doping is found over N-CoAlO/*** a result,N-CoAlO/4h(under NH_(3) treatment at 400℃ for 4 hr)with rich oxygen vacancies shows optimal catalytic activity,with a T90(the temperature required to reach a 90% conversion of propane)at 266℃.The more oxygen vacancies are caused by the co-operative effects of N doping and suitable reduction of Co^(3+) for NCoAlO/4h,leading to an enhanced oxygen mobility,which in turn promotes C_(3)H_(8) total oxidation activity dominated by Langmuir-Hinshelwood ***,in situ diffuse reflectance infrared Fourier transform spectroscopy(DRIFTs)analysis shows that N doping facilities the decomposition of intermediate species(propylene and formate)into CO_(2)over the catalyst surface of N-CoAlO/4h more *** reported design in this work will provide a promising way to develop abundant oxygen vacancies of Co-based catalysts derived from hydrotalcites by a simple NH_(3) treatment.

关键词： Hydrotalcite derived oxides Propane oxidation N doping Co species Oxygen vacancies

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The response of structure and nitrogen removal function of the biofilm on submerged macrophytes to high ammonium in constructed wetlands

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Journal of Environmental Sciences 2024年第8期142卷 129-141页

作者： Xue Jiang Mengmeng Wang Shunqing Yang Di He Fei Fang Liuyan Yang State Key Laboratory of Pollution Control and Resource Reuse School of the EnvironmentNanjing UniversityNanjing 210023China School of Resources and Environment Anqing Normal UniversityAnqing 246133China

The ammonium exceedance discharge from sewage treatment plants has a great risk to the stable operation of subsequent constructed wetlands(CWs).The effects of high ammonium shocks on submerged macrophytes and epiphytic biofilms on the leaves of submerged macrophytes in CWs were rarely mentioned in previous *** this paper,the 16S rRNA sequencing method was used to investigate the variation of the microbial communities in biofilms on the leaves of Vallisneria natans plants while the growth characteristics of *** plants were measured at different initial ammonium *** results demonstrated that the total chlorophyll and soluble sugar synthesis of *** plants decreased by 51.45%and 57.16%,respectively,and malondialdehyde content increased threefold after8 days if the initial NH_(4)^(+)-N concentration was more than 5 mg/*** density,bacterial quantity,dissolved oxygen,and pH increased with high ammonium *** average removal efficiencies of total nitrogen and NH_(4)^(+)-N reached 73.26%and 83.94%,*** heat map and relative abundance analysis represented that the relative abundances of phyla Proteobacteria,Cyanobacteria,and Bacteroidetes *** numbers of autotrophic nitrifiers and heterotrophic nitrification aerobic denitrification(HNAD)bacteria expanded in *** particular,HNAD bacteria of Flavobacterium,Hydrogenophaga,Acidovorax,Acinetobacter,Pseudomonas,Aeromonas,and Azospira had higher abundances than autotrophic nitrifiers because there were organic matters secreted from declining leaves of *** *** analysis of the nitrogen metabolic pathway showed aerobic denitrification was the main nitrogen removal ***,the nitrification and denitrification bacterial communities increased in epiphytic biofilms on submerged macrophytes in constructed wetlands while submerged macrophytes declined under ammonium shock loading.

关键词： Ammonium shock loading Biofilm Autotrophic nitrifiers Heterotrophic nitrification aerobic denitrification bacteria Submerged macrophyte

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control of Effluent Organic Matter, Cytotoxicity, and Disinfection Byproducts in Wastewater with Biological Anion Exchange Resins: Enhanced Performance through Skeleton Design

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Environmental science & technology 2025年第22期59卷 2025 May 28页

作者： Xingqi Zhu Lu Jiang Ye-Chao Tian Yang Pan Wen-Tao Li Chendong Shuang Rong Ji Aimin Li State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University Nanjing 210023 Jiangsu China.

Effluent organic matter (EfOM) in wastewater threatens ecosystems and drinking water safety via the urban water cycle. Biofiltration using adsorbents with dual adsorption-biodegradation functions, such as biological anion exchange resins (BAERs), offers a promising solution. Compared to biological activated carbon (BAC), BAERs' adjustable skeletons enable targeted EfOM removal. This study designed two BAERs with polystyrene (PS-AER) and magnetic polyacrylic (MPA-AER) skeletons and compared them with conventional polyacrylic BAER (PA-AER) and BACs. During 12 000-bed-volume field applications, BAERs demonstrated 1.7-2.6 and 1.6-2.6 times higher dissolved organic carbon (DOC) and UV removal rates than BACs. This efficacy stemmed from the high concentration of negatively charged components, which BAERs effectively attract. Furthermore, skeleton modifications improved DOC removal by 15.3-17.2% and UV removal by 7.3-18.2% for PS-AER and MPA-AER, compared to PA-AER. The MPA-AER's open pore structure enhanced diffusion of high molecular weight components, while PS-AER's enhanced hydrophobicity improved aromatic component removal. These structural changes also influenced the biological effects of BAERs. Notably, the enhanced performance of PS-AER and MPA-AER reduced wastewater cytotoxicity and controlled the production of disinfection byproducts. Overall, this study confirms the potential of BAERs in wastewater treatment and highlights strategies for performance enhancement through skeleton modification.

关键词： biological anion exchange resin disinfection byproducts (DBPs) effluent organic matter (EfOM) reclaimed wastewater wastewater

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Enhanced methane production during long-term UASB operation at high organic loads as enabled by the immobilized Fungi

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Frontiers of Environmental Science & Engineering 2022年第6期16卷 47-59页

作者： Qiong Guo Zhichao Yang Bingliang Zhang Ming Hua Changhong Liu Bingcai Pan State Key Laboratory of Pollution Control and Resource Reuse School of EnvironmentNanjing UniversityNanjing 210023China Research Center for Environmental Nanotechnology(ReCENT) Nanjing UniversityNanjing 210023China School of Life Sciences Nanjing UniversityState Key Laboratory of Pharmaceutical BiotechnologyNanjing 210023China

Anaerobic digestion is widely applied in organic wastewater treatment coupled with bioenergy production,and how to stabilize its work at the high organic loading rate(OLR)remains a ***,we proposed a new strategy to address this issue via involving the synergetic role of the Aspergillus sydowii 8L-9-F02 immobilized beads(AEBs).A long-term(210-day)continuous-mode operation indicated that the upflow anaerobic sludge bed(UASB)reactor(R1,with AEBs added)could achieve the OLR as high as 25.0 kg/(m^(3)×d),whereas the control reactor(R0,with AEBs free)could only tolerate the maximum OLR of 13.3 kg/(m^(3)×d).Remarkably,much higher COD removal(85.9%vs 23.9%)and methane production(5.4 m^(3)/(m^(3)×d)vs 2.2 m^(3)/(m^(3)×d))were achieved in R1 than R0 at the OLR of 25.0 kg/(m^(3)×d).Such favorable effect results from the facts that fungi inhibit VFAs accumulation,favor the pH stabilization,promote the generation of more extracellular polymeric substance,and enhance the sludge granulation and ***,fungi may enhance the secretion of acetyl-coenzyme A,a key compound in converting organic matters to CO_(2).In addition,fungi are favorable to enrich methanogenic archaea even at high OLR,improving the activity of acetate kinase and coenzyme F_(420) for more efficient methanogenic *** work may shed new light on how to achieve higher OLR and methane production in anaerobic digestion of wastewater.

关键词： Anaerobic digestion Fungi Methane production High OLR Microbial community

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