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Core fungal species strengthen microbial cooperation in a food-waste composting process

environmental Science and Ecotechnology 2022年第4期12卷 18-25页

作者： Yuxiang Zhao Jingjie Cai Pan Zhang Weizhen Qin Yicheng Lou Zishu Liu Baolan Hu Department of Environmental Engineering Zhejiang UniversityHangzhouChina State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyHarbinChina Zhejiang Province Key Laboratory for Water Pollution Control and Environmental Safety HangzhouChina Key Laboratory of Environment Remediation and Ecological Health Ministry of EducationCollege of Environmental Resource SciencesZhejiang UniversityHangzhouChina

In ecosystem engineering research,the contribution of microbial cooperation to ecosystem function has been *** are one of the predominant decomposers in composting,but thus far,less attention has been given to fungal than to bacterial ***,network and cohesion analyses were combined to reveal the correlation between fungal cooperation and organic matter(OM)degradation in ten composting *** cohesion,reflecting the cooperation degree,was positively linked to the degradation rate of *** the community perspective,core species(i.e.,Candida tropicalis,Issatchenkia orientails,Kazachstania exigua,and Dipodascus australiensis)with high occurrence frequency and abundance were the key in regulating positive *** species were highly relevant to functional genera associated with OM degradation in both fungal and bacterial ***,focusing on these core fungal species might be an appropriate strategy for targeted regulation of functional microbes and promotion of degradation rates.

关键词： Composting Fungi Core species Microbial cooperation

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Changes in factor profiles deriving from photochemical losses of volatile organic compounds:Insight from daytime and nighttime positive matrix factorization ana

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Journal of environmental Sciences 2025年第5期151卷 627-639页

作者： Baoshuang Liu Tao Yang Sicong Kang Fuquan Wang Haixu Zhang Man Xu Wei Wang Jinrui Bai Shaojie Song Qili Dai Yinchang Feng Philip K.Hopke State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control&Tianjin Key Laboratory of Urban Transport Emission Research College of Environmental Science and EngineeringNankai UniversityTianjin 300350China CMA-NKU Cooperative Laboratory for Atmospheric Environment-Health Research Tianjin 300350China Beijing Make Environment Science&Technology Co. Ltd.Beijing 100083China Shijiazhuang Environmental Prediction Center Shijiazhuang 050022China Department of Public Health Sciences University of Rochester School of Medicine and DentistryRochesterNY 14642USA Institute for a Sustainable Environment Clarkson UniversityPotsdamNY 13699USA

Substantial effects of photochemical reaction losses of volatile organic compounds(VOCs)on factor profiles can be investigated by comparing the differences between daytime and nighttime dispersion-normalized VOC data resolved *** speciated VOC data measured in Shijiazhuang,China from May to September 2021 were used to conduct *** mean VOC concentration in the daytime and at nighttime were 32.8 and 36.0 ppbv,*** and aromatics concentrations in the daytime(12.9 and 3.08 ppbv)were lower than nighttime(15.5 and 3.63 ppbv),whereas that of alkenes showed the opposite *** concentration differences between daytime and nighttime for alkynes and halogenated hydrocarbonswere uniformly *** reactivities of the dominant species in factor profiles for gasoline emissions,natural gas and diesel vehicles,and liquefied petroleum gas were relatively low and their profiles were less affected by photochemical *** losses produced a substantial impact on the profiles of solvent use,petrochemical industry emissions,combustion sources,and biogenic emissions where the dominant species in these factor profiles had high *** the profile of biogenic emissions was substantially affected by photochemical loss of isoprene,the low emissions at nighttime also had an important impact on its *** losses of highly active VOC species substantially reduced their concentrations in apportioned factor *** study results were consistent with the analytical results obtained through initial concentration estimation,suggesting that the initial concentration estimation could be the most effective currently availablemethod for the source analyses of active VOCs although with uncertainty.

关键词： Volatile organic compounds Dispersion normalization Photochemical loss Factor profile Positive matrix factorization

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Cost-Effective Mapping of Hyperlocal Air pollution Using Large-Scale Mobile Monitoring and Land-Use Machine Learning

ACS ES&T Air

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ACS ES&T Air 2025年第2期2卷 151-161页

作者： Tie Zheng Yifan Wen Sheng Xiang Pan Yang Xuan Zheng Yan You Shaojun Zhang Ye Wu School of Environment State Key Joint Laboratory of Environment Simulation and Pollution Control Tsinghua University Beijing 100084 China State Key Joint Laboratory of Environmental Simulation and Pollution Control School of Environment Beijing Normal University Beijing 100875 China State Key Laboratory of Pollution Control and Resource Reuse Tongji University Shanghai 200092 China；College of Environmental Science and Engineering Tongji University Shanghai 200092 China College of Chemistry and Environmental Engineering Shenzhen University Shenzhen 518060 China Macao Environmental Research Institute Macau University of Science and Technology Macau 999078 China；National Observation and Research Station of Coastal Ecological Environments in Macao Macao Environmental Research Institute Macau University of Science and Technology Macao 999078 China School of Environment State Key Joint Laboratory of Environment Simulation and Pollution Control Tsinghua University Beijing 100084 China；State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084 China；Beijing Laboratory of Environmental Frontier Technologies Beijing 100084 China

The advent of large-scale mobile monitoring using fast-response instruments has enabled hyperlocal mapping (≤100 m) of traffic-related air pollution (TRAP), with important implications for air quality management. However, most related studies have been confined within small areas due to the high cost and labor intensity. This study pioneers a cost-effective TRAP mapping method by incorporating large-scale mobile monitoring and land-use machine learning (LUML). Here, over 4.6 million 1 Hz high-frequency measurements (∼1300 h) were collected on a part of major roadways in the Chinese megacity of Shenzhen. Unmeasured locations were estimated by LUML models to reduce measurement costs and labor intensity. Various ML algorithms and varying spatial aggregation segment lengths were incorporated to optimize the model performance. Hyperlocal maps of NO, NO2, and PM2.5were predicted across the entire road network covering over 1700 km2. Based on our results, LU-RF (random forest) for mapping NO and NO2and LU-GBM (Gradient Boosting Machine) for mapping PM2.5, demonstrated superior performance. Deep learning models, in contrast, did not yield comparable results. Finer partitioning of road segments (≤100 m) improved NO prediction performance, but worsened that for NO2and PM2.5. By deployment of optimal ML algorithms and segment lengths, the TRAP mapping accuracy increased by 20–80% compared to conventional land-use regression models. This study provides a promising and cost-effective approach to hyperlocal air pollution mapping and management in cities worldwide.

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The development of local ambient air quality standards: A case study of Hainan Province, China

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Eco-environment & Health 2024年第1期3卷 11-20页

作者： Qian Song Nannan Zhang Yanning Zhang Dejia Yin Jiming Hao Shuxiao Wang Shengyue Li Wenshuai Xu Weijun Yan Xinxin Meng Xinghong Xu Xiaochen Wu Donghai Xie Yun Zhu Qipeng Qu Xuan Hou Yueqi Jiang Zhaoxin Dong Haotian Zheng Yisheng Sun Zeqi Li Bin Zhao State Key Joint Laboratory of Environmental Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing 100084China State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing 100084China Institute of Strategic Planning Chinese Academy of Environmental PlanningBeijing 100041China Hainan Research Academy of Environmental Sciences Haikou 571126China Hainan Provincial Ecological and Environmental Monitoring Center Haikou 570206China Hainan Radiation Environmental Monitoring Station Haikou 571126China Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control College of Environment and EnergySouth China University of TechnologyGuangzhou Higher Education Mega CenterGuangzhou 510006China

The ambient air quality standard(AAQS)is a vital policy instrument for protecting the environment and human *** Province is at the forefront of China's efforts to protect its ecological environment,with an official goal to achieve world-leading air quality by ***,neither the national AAQS nor the World Health Organization guideline offers sufficient guidance for improving air quality in Hainan because Hainan has well met the former while the latter is excessively ***,the establishment of Hainan's local AAQS becomes ***,research regarding the development of local AAQS is scarce,especially in comparatively more polluted countries such as *** relatively high background values and significant interannual fluctuations in air pollutant concentrations in Hainan present challenges in the development of local *** research proposes a world-class local AAQS of Hainan Province by reviewing the AAQS in major countries or regions worldwide,analyzing the influence of different statistical forms,and carefully evaluating the attainability of the *** the proposed AAQS,the annual mean concentration limit for PM2.5,the annual 95th percentile of daily maximum 8-h mean(MDA8)concentration limit for O_(3),and the peak season concentration limit for O_(3) are set at 10,120,and 85μg/m^(3),*** study indicates that,with effective control policies,Hainan is projected to achieve compliance with the new standard by *** implementation of the local AAQS is estimated to avoid 1,526(1,253–1,789)and 259(132–501)premature deaths attributable to longterm exposure to PM2.5 and O_(3) in Hainan in 2035,respectively.

关键词： Local ambient air quality standard Statistical form Feasibility Health effects Hainan province

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3D-cavity-confined CsPbBr_(3)quantum dots for visible-light-driven photocatalytic c(sp^(3))-H bond activation

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Carbon Energy 2024年第11期6卷 59-68页

作者： Yu‐Jie Gao Handong Jin Daniel A.Esteban Bo Weng Rafikul A.Saha Min‐Quan Yang Sara Bals Julian A.Steele Haowei Huang Maarten B.J.Roeffaers Centre for Membrane Separations AdsorptionCatalysis and Spectroscopy for Sustainable Solutions(cMACS)KU LeuvenLeuvenBelgium Department of Chemistry KU LeuvenLeuvenBelgium Electron Microscopy for Materials Science(EMAT) University of AntwerpAntwerpenBelgium Fujian Key Laboratory of Pollution Control and Resource Reuse College of Environmental and Resource SciencesCollege of Carbon NeutralModern IndustryFujian Normal UniversityFuzhouChina Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQueenslandAustralias School of Mathematics and Physics The University of QueenslandBrisbaneQueenslandAustralia.

Metal halide perovskite(MHP)quantum dots(QDs)offer immense potentialfor several areas of photonics research due to their easy and low-costfabrication and excellent optoelectronic ***,practicalapplications of MHP QDs are limited by their poor stability and,in particular,their tendency to ***,we develop a two-step double-solventstrategy to grow and confine CsPbBr_(3)QDs within the three-dimensional(3D)cavities of a mesoporous SBA-16 silica scaffold(CsPbBr_(3)@SBA-16).Strongconfinement and separation of the MHP QDs lead to a relatively uniform sizedistribution,narrow luminescence,and good ambient stability over 2 *** addition,the CsPbBr_(3)@SBA-16 presents a high activity and stability forvisible-light-driven photocatalytic toluene C(sp^(3))-H bond activation toproduce benzaldehyde with~730 umolg^(-1)h^(-l) yield rate and ***,the structural stability of CsPbBr_(3)@SBA-16QDs issuperior to that of both pure CsPbBr3 QDs and those confined in MCM-41with 1D channels.

关键词： 3D cavity silica C(sp^(3))-H bond activation perovskite quantum dots photocatalysis stability

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Arsenic release from microbial reduction of scorodite in the presence of electron shuttle in flooded soil

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Journal of environmental Sciences 2023年第4期126卷 113-122页

作者： Yujuan Fang Manjia Chen Chengshuai Liu Leheng Dong Jimei Zhou Xiu Yi Dongqing Ji Jiangtao Qiao Hui Tong School of Water and Environment Chang’an UniversityXi’an 710054China National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and ManagementInstitute of Eco-environmental and Soil SciencesGuangdong Academy of SciencesGuangzhou 510650China State Key Laboratory of Environmental Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China College of Agriculture/Tree Peony Henan University of Science and TechnologyLuoyang 471023China

Scorodite (FeAsO_(4)·H_(2)O) is a common arsenic-bearing (As-bearing) iron mineral in nearsurface environments that could immobilize or store As in a bound *** flooded soils,microbe induced Fe(Ⅲ) or As(Ⅴ) reduction can increase the mobility and bioavailability of ***,humic substances can act as electron shuttles to promote this *** dynamics of As release and diversity of putative As(Ⅴ)-reducing bacteria during scorodite reduction have yet to be investigated in detail in flooded ***,the microbial reductive dissolution of scorodite was conducted in an flooded soil in the presence of anthraquinone-2,6-disulfonate (AQDS).Anaeromyxobacter,Dechloromonas,Geothrix,Geobacter,Ideonella,and Zoogloea were found to be the dominant indigenous bacteria during Fe(Ⅲ) and As(Ⅴ) *** increased the relative abundance of dominant species,but did not change the diversity and microbial community of the systems with *** these bacteria,Geobacter exhibited the greatest increase and was the dominant Fe(Ⅲ)-and As(Ⅴ)-reducing bacteria during the incubation with AQDS and *** promoted both Fe(Ⅲ) and As(Ⅴ) reduction,and over 80%of released As(Ⅴ) was microbially transformed to As(Ⅲ).The increases in the abundance of arrA gene and putative arrA sequences of Geobacter were higher with AQDS than without *** a result,the addition of AQDS promoted microbial Fe(Ⅲ) and As(Ⅴ) release and reduction from As-bearing iron minerals into the *** results contribute to exploration of the transformation of As from As-bearing iron minerals under anaerobic conditions,thus providing insights into the bioremediation of As-contaminated soil.

关键词： Scorodite Fe(III)reduction As(V)reduction Arsenate reductase gene(arrA) AQDS

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Characteristics of catalytic destruction of dichloromethane and ethyl acetate mixture over H_(x)PO_(4)-RuO_(x)/CeO_(2) catalyst

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Journal of environmental Sciences 2025年第2期148卷 336-349页

作者： Jiawen Chen Qingjie Meng Feng Bi Jingkun Chen Xiaole Weng Zhongbiao Wu Key Laboratory of Environment Remediation and Ecological Health Ministry of EducationCollege of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China School of Civil&Environmental Engineering and Geography Science Ningbo UniversityNingbo 315211China ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311200China Zhejiang Provincial Engineering Research Centre of Industrial Boiler&Furnace Flue Gas Pollution Control Hangzhou 310058China

Catalytic destruction is an ascendant technology for the abatement of volatile organic compounds(VOCs)originating fromsolvent-based industrial *** varied composition tends to influence each VOC’s catalytic behavior in the reaction *** investigated the catalytic destruction of multi-component VOCs including dichloromethane(DCM)and ethyl acetate(EA),as representatives from pharmaceutical waste gases,over co-supported HxPO_(4)-RuOx/CeO_(2) catalyst.A mutual inhibitory effect relating to concentrations because of competitive adsorption was verified in the binary VOCs oxidation and EA posed a more negative effect on DCM oxidation owing to EA’s superior adsorption *** adsorption of EA on acidic sites(HxPO_(4)/CeO_(2))promoted DCM activation on basic sites(O^(2−))and the dominating EA oxidation blocked DCM’s access to oxidation centers(RuOx/CeO_(2)),resulting in boosted monochloromethane yield and increased chlorine deposition for DCM *** impaired redox ability of Ru species owing to chlorine deposition in turn jeopardized deep oxidation of EA and its by-products,leading to increased gaseous by-products such as acetic acid originating fromEA ***,DCM at low concentration slightly promoted EA conversion at low temperatures with or without water,consistent with the enhanced EA adsorption in co-adsorption *** was mainly due to that DCM impeded the shielding effect of hydrolysate deposition from rapid EA hydrolysis depending on the decreased ***,water benefited EA hydrolysis but decreased CO_(2) selectivity while the generated water derived from EA was likely to affect DCM *** work may provide theoretical guidance for the promotion of applied catalysts toward industrial applications.

关键词： Catalytic destruction Multi-component VOCs Mixture effect Interaction mechanism

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Predicting the Bioavailability and Toxicity of Mixture Metals in Terrestrial System: Coupling of Sand Bioassay and Geochemical Models

SSRN

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SSRN 2022年

作者： Lin, Lu Zhu, Bojing Qu, Xiaoze Gu, Xueyuan State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing China

The application of terrestrial toxicity models to real soil environments is a challenge due to the heterogeneity of soil. In this study, we present a new modeling approach able to predict the bioaccumulation and toxicity of a metal mixture in different soils. Equations describing dose-accumulation and dose-toxicity relationships of Cd-Ni mixtures to wheat root elongation were generated using a standard sand culture bioassay. A geochemical multi-surface speciation model (MSM) with default parameters was employed to predicted the dissolved metal contents Cdis of three soils collected in China with different properties. Several toxicity models (TU/CAM + FIAM/BLM/GCSM) were screened to identify the one yielding the most accurate predictions. The results showed that metal bioaccumulation was better predicted by the MSM-Cdis integrated with the dose-accumulation equation (RMSE dis in combination with the BLM+CAM model successfully predicted Cd-Ni toxicity in all three soils (RMSE = 20.7), but the deviation was slightly larger than that obtained in measurements of metals in soil porewater (RMSE =17.2). Our study demonstrates that the MSM coupled with the dose-accumulation and dose-toxicity equations derived from sand bioassays offers a promising approach in risk assessments of mixed metals in actual soils while avoiding tedious soil bioassays, which will greatly improve the practical application value of terrestrial toxic model. © 2022, The Authors. All rights reserved.

关键词： Soils

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Titanium Xerogel as a Potential Alternative for Polymeric Ferric Sulfate in Coagulation Removal of Antimony from Reverse Osmosis Concentrate

SSRN

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SSRN 2022年

作者： Wu, Bingdang Li, Jingbiao Gan, Yonghai Hang, Zhihao Li, Haojie Zhang, Shujuan State Key Laboratory of Pollution Control and Resource Reuse School of the Environment Nanjing University 210023 China

Reverse osmosis (RO) is a useful process for water purification or water reuse. Nevertheless, the generated RO concentrate may adversely affect the environment if not properly treated. Coagulation with polymeric ferric sulfate (PFS) is a widely used method for the treatment of antimony (Sb)-containing RO concentrate. However, the PFS coagulation is still suffering from high residual metal and turbidity. Herein, a titanium xerogel coagulant (TXC) was evaluated as an alternative for PFS to remove Sb from RO concentrate. The RO concentrate collected from a local textile factory had an initial Sb concentration of 806 μg/L, a turbidity less than 1 NTU, and a high conductivity (5.3 mS/cm). With TXC as the coagulant, the residual Sb concentrations met the direct discharge limit (50 μg/L) at all the tested conditions (pH: 3.0–9.0, dosage: 40–100 mg/L). Based on the analyses with potentiometric titrations, X-ray photoelectron spectroscopy, and X-ray diffraction pattern, the binding states between Sb and the flocs of TXC and PFS were investigated. The results reveal that sweep flocculation dominated in the removal of Sb by TXC, whereas charge neutralization played a major role in Sb removal by PFS. As a result, TXC coagulation was robust in a wide pH range and was less sensitive to organic matter. The work here provides a promising approach for the treatment of RO concentrate. © 2022, The Authors. All rights reserved.

关键词： Coagulation

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Submerged Macrophyte Promoted Nitrogen Removal Function of Biofilms in Constructed Wetland

SSRN

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SSRN 2023年

作者： Jiang, Xue Wang, Mengmeng He, Di Zhu, Jinling Yang, Shunqing Fang, Fei Yang, Liuyan State Key Laboratory of Pollution Control and Resource Reuse School of Environment Nanjing University Nanjing210023 China School of Resources and Environment Anqing Normal University Anqing246133 China

Biofilm is one of the important factors affecting nitrogen removal in constructed wetlands (CWs). However, the impact of submerged macrophyte on nitrogen transformation of biofilms on leaves of submerged macrophyte and matrix remains poorly understood. In the study, the CWs with Vallisneria natans and with artificial plant were established to investigate the effects of submerged macrophyte on nitrogen transformation and the composition of nitrogen cycling bacteria to probe nitrogen removal functions of biofilms under high ammonium nitrogen (NH4+-N) loading. The average removal rates of total nitrogen and NH4+-N in CW with V. natans reached 71.38% and 82.08%, respectively, showing increases by 24.19% and 28.79% compared with the control with artificial plant. Scanning electron microscope images indicated that high NH4+-N damaged leaf cells, resulting in the release of cellular contents which increased aqueous total organic carbon in CW with V. natans. However, the specific surface area and carrier function of V. natans were unaffected within 25 days. As a kind of natural organic matters, submerged macrophyte provided organic matters for the bacterial growth in biofilms in CW. Bacterial composition analysis revealed that the phylum Proteobacteria was predominant in CW with V. natans. The numbers of nitrifiers and denitrifiers in leaf biofilms reached 1.66 × 105 cells/g and 1.05 × 107 cells/g, as well as 2.79 × 105 cells/g and 7.41 × 107 cells/g in matrix biofilms, respectively. Submerged macrophyte elevated the numbers of nitrogen-converting bacteria and promoted the expression of nitrification (amoA and hao) and denitrification genes (napA, nirS and nosZ) in leaf biofilms and matrix biofilms, which facilitated nitrogen conversion in CW with V. natans. Therefore, this study highlighted the effects of submerged macrophyte on biofilm functions, providing a scientific basis for the nitrogen removal of biofilms in CWs. © 2023, The Authors. All rights reserved.

关键词： Wetlands

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