Article
Environmental Sciences
Wojciech Moron, Wieslaw Ferens, Janusz Wach
Summary: This article focuses on evaluating the impact of air in-leakages on emissions of NOx and SO2 in single-stage coal-dust combustion system under oxygen combustion. Results show that adequately sealed combustion system contributes to reduced emission of nitrogen compounds.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Energy & Fuels
Shaoyan Sun, Donghai Xu, Yu Liang, Guanyu Jiang, Yunfei Diao, Xuehan Gong, Bingsheng Wang
Summary: In this study, the effects of temperature, oxygen concentration, and CaO addition on SO2 and NOx emissions during municipal sludge combustion in oxygen-fuel atmospheres were investigated. The results showed that a temperature of 800 degrees C and 30% oxygen concentration achieved the minimum emissions of both pollutants. Additionally, CaO addition effectively reduced SO2 emissions with 8 wt% addition performing the best, while the inhibition of NOx emissions was less significant and only slight inhibition was observed with 5 wt% addition.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Green & Sustainable Science & Technology
Elham Heidari, Sona Bikdeli, Mohammad Reza Mansouri Daneshvar
Summary: The urban transportation sector in Iran is facing challenges of high fuel consumption and CO2 emission. This research aims to investigate the current and future emissions, compare and quantify the outcomes, and cluster the influential factors in urban transportation. A dynamic model is used to estimate the effects of urban transportation on fuel consumption, CO2 emission, and air pollution concentration in Mashhad city. The results show an increasing trend in emissions, with potential mitigation measures identified. The proposed model suggests considering alternative urban vehicle fleets to reduce emissions.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Engineering, Environmental
Betul Ozturk, Onur Ozturk, Aykan Karademir
Summary: This study focuses on the NOx emissions during the co-processing of alternative fuels in cement plants and applies artificial neural network (ANN) for modeling and prediction. The results show that the proposed model can satisfactorily predict NOx emissions in cement plants, providing a method for operators to estimate emission levels before using a new fuel source.
ENVIRONMENTAL ENGINEERING RESEARCH
(2022)
Article
Environmental Sciences
Xiaowen Zhang, Jingyuan Li, Haoye Liu, Yong Li, Tengteng Li, Kai Sun, Tianyou Wang
Summary: This study proposes a fuel-consumption based window method to assess vehicle emissions, addressing the limitations of the current on-board diagnostics system in China. By using fuel consumption rate as a parameter to adjust the window size, this method provides an effective way to evaluate vehicle emissions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Yiwen Hu, Zengliang Zang, Dan Chen, Xiaoyan Ma, Yanfei Liang, Wei You, Xiaobin Pan, Liqiong Wang, Daichun Wang, Zhendong Zhang
Summary: This study developed a top-down approach to optimize the emission inventory of sulfur dioxide (SO2) using a weather forecasting model coupled with a chemistry model. The results showed that the forecasts with optimized emissions outperformed the forecasts with a priori emissions in terms of accuracy. The improvements in Southern China were more significant than those in Northern China.
Article
Environmental Sciences
Jun Liu, Dan Tong, Yixuan Zheng, Jing Cheng, Xinying Qin, Qinren Shi, Liu Yan, Yu Lei, Qiang Zhang
Summary: China, as the largest cement producer and consumer in the world, has experienced significant increases in CO2, SO2, and NOx emissions from the cement industry from 1990 to 2015. However, the introduction of advanced technologies and policy measures has helped in reducing air pollutant emissions, particularly SO2, CO, and PM emissions, while CO2 emissions continue to rise, posing challenges to carbon emission mitigation in the future.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Energy & Fuels
Yuling Zheng, Yangyang Mi, Yonglong Li, Wenming Liu, Daishe Wu, Yingying Zhang, Zhenguo Li, Honggen Peng
Summary: In this study, a series of novel binary CuCo-SAPO-34 catalysts were designed and prepared through a simple one-pot method and applied for NOx selective catalytic reduction with ammonia. The binary CuCo-SAPO-34 catalysts exhibited enhanced activity and SO2 tolerance compared to Cu-SAPO-34, and also showed superior sulfur resistance and hydrothermal stability.
Article
Environmental Sciences
Xiaoxiao Feng, Xiaole Zhang, Jing Wang
Summary: This study developed a method to update the SO2 emission inventory in Chongqing, which is useful for evaluating the SO2 pollution and designing effective emission reduction policies. The updated emission inventory was estimated by integrating the a priori knowledge of the baseline emissions and the current observations using Bayesian inference. The adjustment of the emissions improved the accuracy in predicting SO2 concentrations with the developed method.
ATMOSPHERIC ENVIRONMENT
(2023)
Article
Thermodynamics
Jiangang Huang, Jinzhi Zhang, Yutong Feng, Dominic Yellezuome, Zihao Zhang, Ruidong Zhao, Tianju Chen, Jinhu Wu
Summary: The thermal properties and volatile emissions of biomass and coal/semicoke co-combustion were studied using thermogravimetric-mass spectrometry and a two-tube reactor. The results showed that blending pine sawdust and Shenmu semicoke significantly improved the combustion characteristics. The increase in NO conversion rate was mainly attributed to the synergistic effect between char-N and volatile-N. Increasing oxygen concentrations enhanced the combustion rate.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Chemistry, Applied
Haifeng Zan, Xiaoping Chen, Wenqi Zhong, Jiliang Ma, Daoyin Liu, Guoqing Lian, Pengfei Geng, Cai Liang
Summary: Pressurised circulating fluidized bed oxy-fuel combustion (PCFB-OFC) is a promising technology for CO2 capture due to its high carbon capture efficiency and net efficiency. However, there is a lack of comprehensive experimental studies on PCFB thermal state experimental devices. In this study, a 100 kWth PCFB-OFC experimental device was developed, and the effect of combustion pressure on various parameters was investigated. The results showed that increasing pressure improved combustion efficiency, temperature distribution, and reduced pollutant emissions.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Energy & Fuels
Pawel Niszczota, Marian Gieras
Summary: The study shows that the use of water-based emulsion (FWE) in miniature gas turbines can reduce CO and NOx emissions, as well as decrease the consumption of basic fuel.
Article
Chemistry, Physical
Yongjun Ji, Shaomian Liu, Shaojia Song, Wenqing Xu, Liang Li, Yu Zhang, Wenxing Chen, Huifang Li, Jingang Jiang, Tingyu Zhu, Zhenxing Li, Ziyi Zhong, Dingsheng Wang, Guangwen Xu, Fabing Su
Summary: This study reports a novel Pt catalyst for CO-SCR, which consists of negatively charged single-atom Pt embedded on CuO squares supported on CoAlO nanosheets. This catalyst showed excellent performance in terms of NO conversion, N-2 selectivity, and tolerance toward SO2 poisoning, owing to the unique structure and electronic properties.
Article
Green & Sustainable Science & Technology
Xiaorui Liang, Qinhui Wang, Zhongyang Luo, Eric Eddings, Terry Ring, Simin Li, Peng Yu, Jiqing Yan, Xudong Yang, Xin Jia
Summary: The research found that under pressurized oxy-fuel combustion conditions, both an increase in system pressure and temperature led to a significant impact on NOx emissions, while an increase in oxygen concentration also resulted in an increase in NOx emissions. These results highlight the importance of understanding the impact of operating parameters on NOx emissions.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Engineering, Environmental
TingYu Zhu, Xue Wang, ChaoQun Li, WenQing Xu, Shuai Qin, JianFei Song
Summary: A transient two-dimensional sintering model was established to study the temperature, CO emission and solid fuel consumption during the sintering process. The model considers various factors and provides theoretical support for the optimization of sintering furnaces.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiaolan Zeng, Bo Li, Runqi Liu, Xiang Li, Tianle Zhu
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Environmental Sciences
Tariq Mehmood, Tianle Zhu, Ishaq Ahmad, Xinghua Li
Article
Chemistry, Physical
Shiyu Hou, Shuaijie He, Tianle Zhu, Jihui Li, Liqiang Ma, Hongda Du, Wanci Shen, Feiyu Kang, Zheng-Hong Huang
Summary: The traditional method of exfoliated graphite production faces challenges in energy conservation and pollution abatement. A new preparation method under room temperature conditions has been developed to acquire high-performance exfoliated graphite with significant potential for industrial applications.
JOURNAL OF MATERIOMICS
(2021)
Article
Chemistry, Physical
Wei Hong, Mingpan Shau, Tianle Zhu, Haining Wang, Ye Sun, Fangxia Shen, Xiang Li
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Article
Environmental Sciences
Mutong Niu, Fangxia Shen, Feng Zhou, Tianle Zhu, Yunhao Zheng, Yi Yang, Ye Sun, Xinghua Li, Yan Wu, Pingqing Fu, Shu Tao
ENVIRONMENT INTERNATIONAL
(2020)
Article
Environmental Sciences
Runqi Liu, Hua Song, Bo Li, Xiang Li, Tianle Zhu
Summary: The simultaneous removal performances of toluene and styrene under non-thermal plasma and NTP-catalysis were studied, revealing that benzaldehyde from styrene inhibited the conversion of toluene. The introduction of Cu-doped MnO2 materials significantly improved VOCs removal efficiency and reduced O-3 generation.
Article
Environmental Sciences
Mutong Niu, Feng Zhou, Yi Yang, Ye Sun, Tianle Zhu, Fangxia Shen
Summary: This study investigated the characteristics of airborne archaea in Beijing during springtime, revealing soil as the primary source for releasing archaea into the environment. It was found that air quality and sandstorms can impact the abundance of airborne archaea, and dispersal-related neutral processes play a crucial role in shaping the structure of the archaeal assembly.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Huifang Tian, Changzhi Chen, Tianle Zhu, Bingjun Zhu, Yifei Sun
Summary: A novel iron-based bimetallic nanoparticles supported on activated carbon were synthesized and employed as an activator in persulfate oxidation for PAH remediation. Characterizations of the synthetic material indicated excellent properties, and mechanisms of PAH oxidation were discussed in the reaction system of Fe-Ni/AC activated persulfate.
Article
Environmental Sciences
Yong Yin, Dong Lv, Tianle Zhu, Xinghua Li, Ye Sun, Shuaishuai Li
Summary: The study investigated the removal and transformation behaviors of unconventional air pollutants in various facilities of cement kiln-end, showing different impacts of each installation on the concentrations of PAHs, heavy metals, and carbonyl compounds. The results indicated that SP boiler significantly decreased the concentrations of PAHs and heavy metals, while raw mill and baghouse filter accelerated the volatilization and removal of compounds. Additionally, SCR-DeNO(x) system also played a role in removing some gas-phase PAHs and carbonyl compounds.
Article
Engineering, Chemical
Feng Zhou, Mutong Niu, Yunhao Zheng, Ye Sun, Yan Wu, Tianle Zhu, Fangxia Shen
Summary: Exposure to indoor airborne microbiomes is closely linked to human health. In this study, indoor bioaerosols in winter Beijing were characterized, showing lower concentrations compared to outdoor bioaerosols. The community structures of indoor bioaerosols were distinct from outdoor ones and were differently affected by ambient air pollution, with significant changes observed in indoor fungal community impacted by hazy air pollution.
JOURNAL OF AEROSOL SCIENCE
(2021)
Article
Chemistry, Physical
Wei Hong, Jinzhu Ma, Tianle Zhu, Hong He, Haining Wang, Ye Sun, Fangxia Shen, Xiang Li
Summary: An innovative Li-K-OMS-2 catalyst with specific non-oxygen vacancy sites was reported for improved water resistance in ozone decomposition applications. This catalyst showed superior performance with only a 10% decrease in ozone conversion after 6 hours of reaction under high humidity conditions, outperforming currently documented MnO2-based catalysts. The findings represent a critical step towards the rational design and synthesis of high water-resistant catalysts for ozone decomposition.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Shiyu Hou, Tianle Zhu, Wanci Shen, Feiyu Kang, Michio Inagaki, Zheng-Hong Huang
Summary: Exfoliated graphite (EG) blocks with high sorption capacities for diesel oil can be prepared by a specific method and can undergo adsorption-desorption cycles using compression-release, showing good performance compared to traditional methods. The blocks also have sufficient mechanical strength for continuous oil removal from water surfaces and can effectively remove high viscosity crude oil through Joule heating. The high hydrophobicity and lipophilicity of EG allows for selective oil removal from water.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Polymer Science
Yuan Zhao, Seyedarash Moshtaghibana, Tianle Zhu, Kehinde A. Fayemiwo, Adam Price, Goran T. Vladisavljevic
Summary: Monodispersed polymeric microcapsules loaded with CO2 solvents or chelating agents were successfully produced by capillary microfluidics. The poly(HDDA) shell exhibited better mechanical stability and resistance to shell buckling, while the NOA81 and PDMS shells underwent morphological changes during freeze drying. Embedding carbon-based nanomaterials into the PDMS matrix improved the storage stability and buckling resistance of PDMS shells. All fabricated shells showed thermal stability up to 300 degrees C.
JOURNAL OF POLYMER SCIENCE
(2022)
Article
Engineering, Environmental
Shiyu Hou, Yiliang Tang, Tianle Zhu, Zheng-Hong Huang, Yingshu Liu, Ye Sun, Xiang Li, Fangxia Shen
Summary: This study investigated the effects of pore size on the adsorption capacity and adsorption selectivity of toluene and naphthalene through molecular simulation and experimental investigation. The results showed that the adsorption capacity of both compounds increased and then decreased with increasing pore size. Naphthalene exhibited higher adsorption energy and stability compared to toluene.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Si Jiang, Teng Li, JiKai Zheng, Hao Zhang, Xiang Li, Tianle Zhu
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2020)
Article
Environmental Sciences
Muhammad Waqas, Majid Nazeer, Man Sing Wong, Wu Shaolin, Li Hon, Joon Heo
Summary: The socio-economic restriction measures implemented in the United States have significantly reduced nitrogen dioxide (NO2) emissions. The study highlights the impact of factors such as human mobility, population density, income, climate, and stationary sources on the reduction of NO2 at different stations. The research emphasizes the scientific impacts of the NO2 reduction and income inequality revealed by the pandemic on air quality and health disparities.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Guorui Zhi, Jinhong Du, Aizhong Chen, Wenjing Jin, Na Ying, Zhihui Huang, Peng Xu, Di Wang, Jinghua Ma, Yuzhe Zhang, Jiabao Qu, Hao Zhang, Li Yang, Zhanyun Ma, Yanjun Ren, Hongyan Dang, Jianglong Cui, Pengchuan Lin, Zhuoshi He, Jinmin Zhao, Shuo Qi, Weiqi Zhang, Wenjuan Zhao, Yingxin Li, Qian Liu, Chen Zhao, Yi Tang, Peng Wei, Jingxu Wang, Zhen Song, Yao Kong, Xiangzhe Zhu, Yi Shen, Tianning Zhang, Yangxi Chu, Xinmin Zhang, Jiafeng Fu, Qingxian Gao, Jingnan Hu, Zhigang Xue
Summary: An comprehensive emission inventory for China in 2019, which includes both air pollutants and greenhouse gases, was developed in this study. The inventory utilizes existing frameworks and data to provide comparable emissions data and demonstrates the relationship between emissions and economic development.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
I-Ting Ku, Yong Zhou, Arsineh Hecobian, Katherine Benedict, Brent Buck, Emily Lachenmayer, Bryan Terry, Morgan Frazier, Jie Zhang, Da Pan, Lena Low, Amy Sullivan, Jeffrey L. Collett Jr
Summary: Unconventional oil and natural gas development (UOGD) in the United States has expanded rapidly in recent decades, raising concerns about its impact on air quality. This study conducted extensive air monitoring during the development of several large well pads in Broomfield, Colorado, providing a unique opportunity to examine changes in local air toxics and VOC concentrations during well drilling and completions and production. The study identified significant increases in VOC concentrations during drilling operations, highlighting the importance of emissions from synthetic drilling mud. The findings suggest opportunities to mitigate emissions during UOGD operations.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Puji Lestari, Akbar R. Tasrifani, Wiranda I. Suri, Martin J. Wooster, Mark J. Grosvenor, Yusuke Fujii, Vissia Ardiyani, Elisa Carboni, Gareth Thomas
Summary: This study developed field emission factors for various pollutants in peatland fires and estimated the total emissions. Gas samples were collected using an analyzer, while particulate samples were collected using air samplers. The study found significant emissions of CO2, CO, PM2.5, carbon aerosols, water-soluble ions, and elements from the fires in Central Kalimantan, Indonesia in 2019.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Ligang Li, Yuyu Chen, Lu Fan, Dong Sun, Hu He, Yongshou Dai, Yong Wan, Fangfang Chen
Summary: A high-precision retrieval method based on a deep convolutional neural network and satellite remote sensing data is proposed to obtain accurate methane vertical profiles.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Hyung Joo Lee, Toshihiro Kuwayama, Michael Fitzgibbon
Summary: This study investigated the changes in nitrogen dioxide (NO2) air pollution levels and their disparities in California, U.S. during the pandemic of coronavirus disease 2019 (COVID-19). The results showed a decrease in NO2 concentrations, especially in urban and high-traffic areas. However, socially vulnerable populations still experienced higher levels of NO2 exposure. The study suggests that reducing NO2 disparities, particularly racial inequity, can be achieved through continued regulatory actions targeting traffic-related NOx emissions.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Maria Chiara Pietrogrande, Beatrice Biffi, Cristina Colombi, Eleonora Cuccia, Umberto Dal Santo, Luisa Romanato
Summary: This study investigates the chemical composition and oxidative potential of PM10 particles in the Po Valley, Italy, and demonstrates the impact of high levels of atmosphere ammonia. The rural area had significantly higher ammonia concentrations compared to the urban site, resulting in higher levels of secondary inorganic aerosol. Although the SIA components did not contribute significantly to the PM10 oxidative reactivity, they were correlated with the oxidative potential measurements. This suggests that the contribution of SIA to PM oxidative toxicity cannot be ignored.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Natalie Allen, Jan Gacnik, Sarrah M. Dunham-Cheatham, Mae Sexauer Gustin
Summary: Accurate measurement of atmospheric reactive mercury is challenging due to its reactivity and low concentrations. The University of Nevada, Reno Reactive Mercury Active System (RMAS) has been shown to be more accurate than the industry standard, but has limitations including long time resolution and sampling biases. Increasing the sampling flow rate negatively affected RM concentrations, but did not impact the chemical composition of RM captured on membranes.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Chin-Yu Hsu, Wei-Ting Hsu, Ching-Yi Mou, Pei-Yi Wong, Chih-Da Wu, Yu-Cheng Chen
Summary: This study estimated the daily exposure concentrations of PM2.5 for elderly individuals residing in different regions of Taiwan using land use regression with machine learning (LUR_ML) and microenvironmental exposure (ME) models. The accuracy of the models varied across regions, with the ME models exhibiting higher predictions and lower biases. The use of region-specific microenvironmental measurements in the ME model showed potential for accurate prediction of personal PM2.5 exposure.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xiaohan Si, Kerrie Mengersen, Chuchu Ye, Wenbiao Hu
Summary: This study found that there is an interactive effect between air pollutants and weather factors, which significantly affects influenza transmission. Future research should consider the interactive effects between pollutants and temperature or humidity to evaluate the environment-influenza association.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Luxi Xu, Ruijun Xu, Yunshao Ye, Rui Wang, Jing Wei, Chunxiang Shi, Qiaoxuan Lin, Ziquan Lv, Suli Huang, Qi Tian, Yuewei Liu
Summary: This study aimed to evaluate the impact of ambient air pollution on hospital admissions for angina. The results showed that exposure to ambient particulate matter, sulfur dioxide, nitrogen dioxide, carbon monoxide, and ozone are associated with an increased risk of hospital admissions for angina. The association with nitrogen dioxide exposure was found to be the strongest.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xinyu Yu, Man Sing Wong, Majid Nazeer, Zhengqiang Li, Coco Yin Tung Kwok
Summary: This study proposes a novel method to address the challenge of missing values in satellite-derived AOD products and creates a comprehensive daily AOD dataset for the Guangdong-Hong Kong-Macao Greater Bay Area. By reconstructing missing values and developing a new model, the derived dataset outperforms existing products and agrees well with ground-based observations. Additionally, the dataset exhibits consistent temporal patterns and more spatial details.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Yidan Zhang, Yifan Xu, Bo Peng, Wu Chen, Xiaoyu Cui, Tianle Zhang, Xi Chen, Yuan Yao, Mingjin Wang, Junyi Liu, Mei Zheng, Tong Zhu
Summary: This study developed a sensitive method to measure the metallic components of atmospheric fine particulate matter (PM2.5) and compared the results with different analysis methods. The concentrations of metallic components in personal PM2.5 samples were found to be significantly different from corresponding fixed-site samples. Personal sampling can reduce exposure misclassifications, and measuring metallic components is useful for exploring health risks and identifying sources of PM2.5.
ATMOSPHERIC ENVIRONMENT
(2024)
Review
Environmental Sciences
Jamie Leonard, Lea Ann El Rassi, Mona Abdul Samad, Samantha Prehn, Sanjay K. Mohanty
Summary: Increasing concentrations of microplastics in the Earth's atmosphere could have adverse effects on ecosystems and human health. The deposition rate of airborne microplastics is influenced by both land use and climate, and a global analysis suggests that climate may have a greater impact on the concentration and deposition rate of microplastics than land use.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Tian Zhou, Xiaowen Zhou, Zining Yang, Carmen Cordoba-Jabonero, Yufei Wang, Zhongwei Huang, Pengbo Da, Qiju Luo, Zhijuan Zhang, Jinsen Shi, Jianrong Bi, Hocine Alikhodja
Summary: This study investigated the long-range transport and effects of North African and Middle Eastern dust in East Asia using lidar observations and model simulations. The results showed that the dust originated from multiple sources and had a long transport time. The vertical distribution of the dust was found to be crucial for assessing its impacts.
ATMOSPHERIC ENVIRONMENT
(2024)
