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SSRN 2025年

作者： Peng, Siyuan Yang, Yue Luo, Dengnan Zeng, Xiang Liang, Minqi Tao, Long Zhang, Guangru Li, Pan Liao, Weijie Guo, Qun Cao, Ruochen Li, Yuzhe Zhang, Weirong Hu, Zhongmin Hainan Baoting Tropical Rainforest Ecosystem Observation and Research Station School of Ecology Hainan University Haikou570228 China Department of Geography Faculty of Arts and Sciences Beijing Normal University Zhuhai519087 China Facility of Geographical Science Beijing Normal University Beijing100875 China Zhuhai Branch of State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal University Zhuhai519087 China School of Geography South China Normal University Shipai Campus Guangzhou510631 China School of Atmospheric Sciences Guangdong Province Data Center of Terrestrial and Marine Ecosystems Carbon Cycle Sun Yat-sen University Guangdong Zhuhai510245 China Key Lab of Ecosystem Network Observation and Modeling Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing100101 China College of Resources and Environment University of Chinese Academy of Sciences Beijing101408 China International Institute for Earth System Sciences Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing University Jiangsu210023 China Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources School of Geography and Ocean Science Nanjing University Jiangsu210023 China Key Laboratory of Land Surface Pattern and Simulation Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing China

Study region: The Tibetan Plateau in China, the Third Pole of the *** focus: Accurate descriptions of spatial variation in evapotranspiration (ET) and its components on the Tibetan Plateau (TP) are crucial for understanding the dynamics of the regional water cycle and energy balance. However, how various environmental factors affect ET and its components remains unclear. This study addresses this gap using observational data from 14 sites and employing the Shuttleworth-Wallace-Hu (SWH) model to examine the spatial relationships between ET, its components, and underlying *** hydrological insights for the region: The SWH model parameters were optimized using the Monte Carlo method, achieving a satisfactory model performance with an average R² of 0.75. The ratio of transpiration to ET was generally higher in alpine meadows (0.55) than alpine steppes (0.39). Across the TP, precipitation and the leaf area index together shaped spatial variation in ET and transpiration. Precipitation emerged as the primary driver of interannual variation in ET, while the leaf area index strongly regulated the proportion of ET accounted for by transpiration. Furthermore, above aridity index values of 0.73, grassland ecosystems transitioned from water to energy. This finding is significant as it challenges the common application of an aridity index value of 0.65 to distinguish arid from humid regions. It suggests that TP grasslands, with an AI of 0.65-0.73, remain primarily water-limited. © 2025, The Authors. All rights reserved.

关键词： Monte Carlo methods

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Coupled Pacific Rim megadroughts contributed to the fall of the MingDynasty’s capital in 1644 CE

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science Bulletin 2024年第19期69卷 3106-3114页

作者： Feng Chen Tao Wang Xiaoen Zhao Jan Esper Fredrik Charpentier Ljungqvist Ulf Büntgen Hans W.Linderholm David Meko Hongna Xu Weipeng Yue Shijie Wang Yujiang Yuan Jingyun Zheng Wei Pan Fidel Roig Martín Hadad Mao Hu Jiachang Wei Fahu Chen Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security Institute of International Rivers and Eco-SecurityYunnan UniversityKunming 650504China Southwest United Graduate School Kunming 650504China Climate Change Research Center and Nansen-Zhu International Research Centre Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Department of Geography Johannes Gutenberg UniversityMainz 55099Germany Global Change Research Institute(CzechGlobe) Czech Academy of SciencesBrno 60300Czech Republic Department of History Stockholm UniversityStockholm 10691Sweden Bolin Centre for Climate Research Stockholm UniversityStockholm 10691Sweden Swedish Collegium for Advanced Study LinneanumUppsala 75238Sweden Department of Geography University of CambridgeCambridge CB23ENUK Department of Geography Faculty of ScienceMasaryk UniversityBrno 61137Czech Republic Swiss Federal Research Institute(WSL) Birmensdorf 8903Switzerland Regional Climate Group Department of Earth SciencesUniversity of GothenburgGothenburg 40530Sweden Laboratory of Tree-Ring Research University of ArizonaTucson AZ 85721USA Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC FEMD) Nanjing University of Information Science and TechnologyNanjing 210044China Key Laboratory of Tree-ring Physical and Chemical Research Institute of Desert MeteorologyChina Meteorological AdministrationUrumqi 830002China Key Laboratory of Land Surface Pattern and Simulation Institute of Geographical Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China Key Laboratory of Digital Human Technology R&D and Application of Yunnan Provincial Department of Education Yunnan UniversityKunming 650504China Laboratorio de Dendrocronología e Historia Ambiental IANIGLA-CCT CONICET-Universidad Nacional de CuyoMendoza 5500Argentina Hémera Centro de Observación de La Tierra Escuela de Ingeniería ForestalFacultad de CienciasUniversidad MayorHuechuraba 85

Historical documents provide evidence for regional droughts preceding the political turmoil and fall of beijing in 1644 CE,when more than 20 million people died in northern China during the late Ming famine ***,the role climate and environmental changes may have played in this pivotal event in Chinese history remains ***,we provide tree-ring evidence of persistent megadroughts from1576 to 1593 CE and from 1628 to 1644 CE in northern China,which coincided with exceptionally cold summers just before the fall of *** analysis reveals that these regional hydroclimatic extremes are part of a series of megadroughts along the Pacific Rim,which not only impacted the ecology and society of monsoonal northern China,but likely also exacerbated external geopolitical and economic *** finding is corroborated by last millennium reanalysis data and numerical climate model simulations revealing internally driven Pacific sea surface temperature variations and the predominance of decadal scale La Ni?a-like conditions to be responsible for precipitation decreases over northern China,as well as extensive monsoon regions in the *** teleconnection patterns provide a mechanistic explanation for reoccurring drought spells during the late Ming Dynasty and the environmental framework fostering the fall of beijing in 1644 CE,and the subsequent demise of the Ming Dynasty.

关键词： Paleoclimate beijing Precipitation reconstruction Climate-society interactions Tree rings Ming Dynasty

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Projections of excess deaths related to cold spells under climate and population change scenarios: A nationwide time series modeling study

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Environment International 2023年 178卷 108034页

作者： He, Cheng Yin, Peng Liu, Zhao Huang, Jianbin Chen, Yidan Gao, Xuejie Xu, Ying Wang, Can Cai, Wenjia Gong, Peng Luo, Yong Ji, John S. Kan, Haidong Chen, Renjie Zhou, Maigeng School of Public Health Shanghai Institute of Infectious Disease and Biosecurity Key Lab of Public Health Safety of the Ministry of Education and NHC Key Lab of Health Technology Assessment Fudan University Shanghai China Neuherberg Germany National Center for Chronic and Noncommunicable Disease Control and Prevention Chinese Center for Disease Control and Prevention Beijing China School of Linkong Economics and Management Beijing Institute of Economics and Management Beijing China Department of Earth System Science Ministry of Education Key Laboratory for Earth System Modeling Institute for Global Change Studies Tsinghua University Beijing China School of Environment Tsinghua University Beijing China College of Earth and Planetary Sciences University of Chinese Academy of Sciences Beijing China Climate Change Research Center Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China National Climate Center China Meteorological Administration Beijing China Institute for Climate and Carbon Neutrality Department of Earth Sciences and Geography University of Hong Kong Hong Kong Special Administrative Region China Vanke School of Public Health Tsinghua University Beijing China Children's Hospital of Fudan University National Center for Children's Health Shanghai China

Background: Future climate change is likely to alter cold spell-related disease burden. Few projection studies have considered the potential impact of the aging population with changing population size on cold spell-related disease burdens. Methods: We derived the association between cold spells and daily mortality for 272 main cities in mainland China. We combined these associations with modeled daily temperatures from three different climate models under two climate change scenarios and three population scenarios to project excess deaths related to cold spells. Furthermore, we used the factor separation method to calculate the independent contribution of future population size, age structure, and climate change on projected deaths attributable to cold spells. Findings: Compared to the baseline period, future excess deaths related to cold spells are expected to increase over most of the decades under RCP 2.6 (81.5% in 2050 s and 37% in 2090 s) and RCP 4.5 (55.5% in 2050 s and −19% in 2090 s). The factor analysis indicated that the rise of the aged population (≥65) substantially would amplify the excess deaths related to cold spells (increase by 101.1% in the 2050 s and 146.2% in the 2090 s). For the near future (2021–2040), population aging could fully offset the influence of decreased cold-spell days. In the middle of this century (2051–2070), the total excess deaths will exhibit significant variation across three scenarios. By the end of 21 century (2081–2100), the population shrinking would reduce the total excess deaths. Interpretation: Excess deaths related to cold spells may still increase in a warming climate and future demographic shifts would produce considerable influences in this increase for different periods. © 2023 The Authors

关键词： Climate change

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Shock Response in Cage-like Polynitrocubane High-Energy-Density Materials: Competition between Strain Energy and Structural Symmetry

Energetic Materials Frontiers

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Energetic Materials Frontiers 2025年

作者： Qing-guan Song Li Meng Sheng-li Jiang Lei Zhang Ze-yao Mo Institute of Applied Physics and Computational Mathematics Beijing 100088 China CAEP Software Center for High Performance Numerical Simulation Beijing 100088 China Institute of Chemical Materials China Academy of Engineering Physics Mianyang 621999 China School of Materials Science & Engineering Beijing Institute of Technology Beijing 100081 China State Key Laboratory of Explosion Science and Safety Protection Beijing Institute of Technology Beijing 100081 China

The cage-like structures provide a unique combination of strain energy for enhanced energy storage and hyperstatic constraints to stabilize the system, positioning them as promising pioneers in advancing high-energy-density materials (HEDMs). However, the shock response of cage-like HEDMs is highly complex and exhibits significant variability, posing a grand challenge in the underlying mechanisms. This study reveals that the shock response of cage-like HEDMs is regulated by the interplay between strain energy and structural symmetry, and introduces a physical model to quantitatively describe how they determine shock stability. The investigated systems include a comprehensive series of cage-like polynitrocubane HEDMs, with each carbon atom in the backbone progressively functionalized with nitro groups. Ab initio molecular dynamics (AIMD) simulations were employed to simulate dynamic and kinetic responses at shock velocities ranging from 8 km·s -1 to 11 km·s -1 , with validation provided by consistent Hugoniot curves that align with reported experimental data. Nitro groups at the carbon-based cage structure, recognized as explosion functional groups, were found to substantially increase the system's strain energy. However, an increasing number of nitro groups also intensified electrostatic repulsion among oxygen lone pairs, which weakens structural integrity and renders the material more susceptible to disassembly under shock conditions. Conversely, structural symmetry—including both the cage-like molecular conformation and spatial packing within the crystal lattice—was found to mitigate these destabilizing effects, effectively balancing the trade-off between energy storage and structural stability. Based on these findings, we propose a physical model that captures the essential factors driving shock initiation in cage-like polynitrocubane HEDMs, offering new insights to inform the design and application of novel advanced HEDMs.

关键词： shock stability cage-like high-energy-density materials strain energy structural symmetry strain tensor

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Air pollution characteristics and their relationship with emissions and meteorology in the Yangtze River Delta region during 2014–2016

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Journal of Environmental sciences 2019年第9期31卷 8-20页

作者： Tao Ma Fengkui Duan Kebin He Yu Qin Dan Tong Guannan Geng Xuyan Liu Hui Li Shuo Yang Siqi Ye Beiyao Xu Qiang Zhang Yongliang Ma State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex Beijing Key Laboratory of Indoor Air Quality Evaluation and Control Tsinghua University Beijing 100084 China Ministry of Education Key Laboratory for Earth System Modeling Department of Earth System Science Tsinghua University Beijing 100084 China National Satellite Meteorological Center Beijing 100081 China College of Resources and Environmental Sciences China Agricultural University Beijing 100094 China

With rapid economic growth and urbanization, the Yangtze River Delta(YRD) region in China has experienced serious air pollution challenges. In this study, we analyzed the air pollution characteristics and their relationship with emissions and meteorology in the YRD region during 2014–2016. In recent years, the concentrations of all air pollutants, except O3,decreased. Spatially, the PM2.5, PM10, SO2, and CO concentrations were higher in the northern YRD region, and NO2 and O3 were higher in the central YRD region. Based on the number of non-attainment days(i.e., days with air quality index greater than 100), PM2.5 was the largest contributor to air pollution in the YRD region, followed by O3, PM10, and ***, particulate matter pollution has declined gradually, while O3 pollution *** conditions mainly influenced day-to-day variations in pollutant concentrations. PM2.5 concentration was inversely related to wind speed, while O3 concentration was positively correlated with temperature and negatively correlated with relative *** air quality improvement in recent years was mainly attributed to emission *** 2014–2016, PM2.5, PM10, SO2, NOx, CO, NH3, and volatile organic compound(VOC)emissions in the YRD region were reduced by 26.3%, 29.2%, 32.4%, 8.1%, 15.9%, 4.5%, and0.3%, respectively. Regional transport also contributed to the air pollution. During regional haze periods, pollutants from North China and East China aggravated the pollution in the YRD region. Our findings suggest that emission reduction and regional joint prevention and control helped to improve the air quality in the YRD region.

关键词： Air pollution Spatiotemporal variation Meteorological condition Emission inventory Regional transport Yangtze River Delta

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New insights into the oscillations of the nucleon electromagnetic form factors

arXiv

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arXiv 2022年

作者： Yang, Qin-He Guo, Di Dai, Ling-Yun Haidenbauer, Johann Kang, Xian-Wei Meisner, Ulf-G. School of Physics and Electronics Hunan University Changsha410082 China Hunan Provincial Key Laboratory of High-Energy Scale Physics and Applications Hunan University Changsha410082 China Institute for Advanced Simulation Institut für Kernphysik Jülich Center for Hadron Physics Forschungszentrum Jülich JülichD-52425 Germany Key Laboratory of Beam Technology of the Ministry of Education College of Nuclear Science and Technology Beijing Normal University Beijing100875 China Institute of Radiation Technology Beijing Academy of Science and Technology Beijing100875 China Helmholtz Institut für Strahlen- und Kernphysik Bethe Center for Theoretical Physics Universität Bonn BonnD-53115 Germany Tbilisi State University Tbilisi0186 Georgia

The electromagnetic form factors of the proton and the neutron in the timelike region are investigated. Electron-positron annihilation into antinucleon-nucleon (N¯ N) pairs is treated in distorted wave Born approximation, including the final-state interaction in the N¯ N system. The latter is obtained by a Lippmann-Schwinger equation for N¯ N potentials derived within SU(3) chiral effective field theory. By fitting to the phase shifts and (differential) cross section data, a high quality description is achieved. With these amplitudes, the oscillations of the electromagnetic form factors of the proton and the neutron are studied. It is found that each of them can be described by two fractional oscillators. One is characterized as 'overdamped' and dominates near the threshold, while the other is 'underdamped' and plays an important role in the high-energy region. These two oscillators are essential to understand the distributions of polarized electric charges induced by hard photons for the nucleons. Copyright © 2022, The Authors. All rights reserved.

关键词： Born approximation

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Quenching Residual H2o2 From Uv/H2o2 With Granular Activated Carbon: A Significant Impact Of Bicarbonate

SSRN

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SSRN 2023年

作者： Zeng, Jinfeng Zhang, Miao Qin, Xinxin He, Yi Liu, Xinyue Zhu, Yichun Liu, Zuwen Li, Wentao Dong, Huiyu Qiang, Zhimin Lian, Junfeng Jiangxi Provincial Key Laboratory of Water Ecological Conservation at Headwater Regions Jiangxi University of Science and Technology 1958 Ke-jia Road Ganzhou341000 China Ganzhou Key Laboratory of Basin Pollution Simulation and Control Jiangxi University of Science and Technology 1958 Ke-jia Road Ganzhou341000 China National－local Joint Engineering Laboratory of Water Engineering Safety and Efficient Utilization of Resources in Poyang Lake Watershed Nanchang Institute of Technology Nanchang330099 China KeyLaboratoryofDrinkingWaterScienceandTechnology ResearchCenterforEcoEnvironmental Sciences Chinese Academy of Sciences 18 Shuang-qing Road Beijing100085 China Hydrology and Water Resources Monitoring Center for Ganjiang Upstream Watershed 8 Zhang-jia-wei Road Ganzhou341000 China

UV/H2O2 has been used as an advanced oxidation process to remove organic micropollutants from drinking water. Residual H2O2 should be quenched to avoid potential damage to the distribution system or disinfectant wastage during the subsequent chlorination/chloramination process. Granular activated carbon (GAC) filter can quench the residual oxidant and eliminate some of the dissolved organic matter. However, knowledge on the kinetics and governing factors of GAC quenching of residual H2O2 from UV/H2O2 and the mechanism underlying the enhancement of the process by HCO3– is limited. Therefore, this study aimed to analyse the kinetics and influential factors, particularly the significant impact of bicarbonate (HCO3–). H2O2 decomposition by GAC followed first-order kinetics, and the rate constants normalised by the GAC dosage (kn) were steady (1.6 × 10–3 L g–1 min–1) with variations in the GAC dosage and initial H2O2 concentration. Alkaline conditions favour H2O2 quenching. Basic groups of the GAC contributed more to H2O2 quenching than did acidic groups, with their specific kn values being 8.9 and 2.4 min–1 M–1, respectively. The presence of chloride, sulphate, nitrate, and dissolved organic matter inhibited H2O2 quenching, while HCO3– promoted it. The interfacial hydroxyl radical (HO•) zones were visualised on the GAC surface, and HCO3– addition increased the HO• concentration. HCO3– increased the concentration of persistent free radicals (PFRs) on the GAC surface, which mainly contributed to HO• generation. A significant enhancement of HCO3– on H2O2 quenching by GAC was also verified in real water. This study revealed the synergistic mechanism of HCO3– and GAC on H2O2 quenching and presents the potential applications of residual H2O2 in the H2O2-based oxidation processes. © 2023, The Authors. All rights reserved.

关键词： Sulfur compounds

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Dynamic Modeling of the Sulfur Cycle in Urban Sewage Pipelines Under High-Temperature and High-Salt Conditions

SSRN

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SSRN 2024年

作者： Zhao, Bingxuan Xu, Zhen Fu, Qionglin Zhao, Xiangai Huang, Jinguang Chen, Yufeng Lian, Faqin Zhou, Jingya Department of Environmental Science College of Geography and Ocean Sciences Yanbian University Yanji133002 China College of Geography and Ocean Sciences Yanbian University Yanji133002 China Technology and Quality Department China MCC5 Group Co. Ltd. Chengdu610063 China Hainan University China Key Laboratory of Biology and Genetic Resources of Tropical Crops Ministry of Agriculture Institute of Tropical Bioscience and Biotechnology Chinese Academy of Tropical Agricultural Sciences Haikou571101 China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China

The corrosion of cement-based materials due to biological processes within the micro-ecological system of urban sewage pipeline networks poses a serious threat to their operation. Furthermore, saltwater is recognized as one of the most corrosive environmental agents. Hence, this study focuses on investigating the sewage dynamics within the anaerobic pipeline. By observing characteristic changes of sewage within the system, we have developed a kinetic model that considers the sulfur circulation between the liquid phase, gas phase, and biofilm interface. The main objective is to address the unique environmental conditions of coastal cities and explore the dynamic interplay between various mathematical models representing biological reaction processes within the sewage pipeline network in this specific area. The findings indicate that under anaerobic conditions, high concentrations of sulfate in wastewater do not act as a limiting factor in the sulfur-hydroxide reaction. On the contrary, when sulfate becomes part of the sulfur cycle process within the sewage pipeline, a certain concentration of sulfate in the wastewater actually enhances the sulfur-hydrogen reaction. This newly developed kinetic model enables us to predict the presence of sulfur under various conditions in tropical coastal cities, thereby providing insights into the extent of corrosion within sewage pipelines. © 2024, The Authors. All rights reserved.

关键词： Sewage

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Comparison of light absorption and oxidative potential of biodiesel/diesel and chemicals/diesel blends soot particles

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Journal of Environmental sciences 2020年第1期32卷 184-193页

作者： Yu Kuang Yi Guo Jiaqi Chai Jing Shang Jiali Zhu Svetlana Stevanovic Zoran Ristovski State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineeringand Center for Environment and HealthPeking UniversityBeijing 100871China International Laboratoryfor Air Quality&Health(ILAQH) School of ChemistryPhysics and Mechanical EngineeringQueensland University of TechnologyBrisbaneQLD 4001Australia School of Engineering Faculty of Science Engineering&Built EnvironmentDe akin UniversityGeelong Waum Ponds CampusLocked Bag 20000GeelongVIC 3220Australia

Soot particles,mainly coming from fuel combustion,affect climate forcing through absorbing light and also result in adverse human health *** biodiesel or additives blending with diesel was considered environmentally friendly,the understanding on absorbing and oxidative capacity of soot emitted from them are still *** watersoluble organic carbon(WSOC)content,surface chemical structure,light absorption and oxidative potential(OPDTT)of soot from biodiesel/diesel and chemicals/diesel blends were investigated utilizing total organic carbon analyzer,X-ray photoelectron spectrometer,ultraviolet–visible spectrophotometry and dithiothreitol(DTT)*** differences and correlations between soot properties were statistically ***/diesel blends soot owned significantly higher WSOC content,ratio of mass absorbing efficiency(MAE)in250 and 365 nm(E2/E3),OPDTT,and higher surface carbonyl *** biodiesel/diesel blends soot contained evidently higher aromatic carbon–oxygen single bond(ArC–O)content,and higher *** individual comparison of biodiesel/diesel blends showed20%coconut biodiesel blend owned the lowest WSOC,E2/E3 and OPDTT,while highest ArC–O and MAE365,representing strongest absorbing *** analysis showed OPDTTwas significantly positively correlated with ***,the evident negative correlation between MAE365 and OPDTT was *** results showed coconut biodiesel/diesel blends soot induced lower levels of oxidative potential,whereas absorption of light was higher,which have far reaching consequences on climate ***,it is important to evaluate the balance point between light-absorbing properties and oxidative potential,under the wide use of biodiesel.

关键词： Soot particle Biodiesel Light absorption Mass absorbing efficiency Oxidative potential Dithiothreitol(DTT)

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Dynamic Modeling of the Sulfur Cycle in Urban Sewage Pipelines Under High-Temperature and High-Salt Conditions

SSRN

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SSRN 2024年

作者： Zhao, Bingxuan Xu, Zhen Fu, Qionglin Zhao, Xiangai Huang, Jinguang Chen, Yufeng Lian, Faqin Zhou, Jingya Department of Environmental Science College of Geography and Ocean Sciences Yanbian University Yanji133002 China College of Geography and Ocean Sciences Yanbian University Yanji133002 China Technology and Quality Department China MCC5 Group Co. Ltd. Chengdu610063 China College of Fisheries and Life Science Hainan Tropical Ocean University Sanya572022 China Key Laboratory of Biology and Genetic Resources of Tropical Crops Ministry of Agriculture Institute of Tropical Bioscience and Biotechnology Chinese Academy of Tropical Agricultural Sciences Haikou571101 China Center for Water and Ecology State Key Joint Laboratory of Environment Simulation and Pollution Control School of Environment Tsinghua University Beijing100084 China

The corrosion of cement-based materials due to biological processes within the micro-ecological system of urban sewage pipeline networks poses a serious threat to their operation. Furthermore, saltwater is recognized as one of the most corrosive environmental agents. Hence, this study focuses on investigating the sewage dynamics within the anaerobic pipeline. Through observing characteristic changes of sewage within the system, we have optimized existing kinetic models to capture the sulfur cycling between the liquid phase, gas phase, and biofilm. The main objective is to address the unique environmental conditions of coastal cities and explore the dynamic interplay between various mathematical models representing biological reaction processes within the sewage pipeline network in this specific area. The findings indicate that under anaerobic conditions, high concentrations of sulfate in wastewater do not act as a limiting factor for sulfide oxidation reactions. On the contrary, when sulfate becomes part of the sulfur cycle process within the sewage pipeline, a certain concentration of sulfate in the wastewater actually enhances the sulfide oxidation reactions. This improved kinetic model enables us to predict the presence of sulfur under various conditions in tropical coastal cities, thereby providing insights into the extent of corrosion within sewage pipelines. © 2024, The Authors. All rights reserved.

关键词： Sewage

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