Article
Engineering, Environmental
Thamali Perera, James McGree, Prasanna Egodawatta, K. B. S. N. Jinadasa, Ashantha Goonetilleke
Summary: Stormwater runoff pollution is a key environmental issue in urban areas, and accurate estimation of pollutant discharge is crucial for water quality management. Traditional deterministic approaches have limitations in addressing variability in stormwater quality, while Bayesian modeling is effective for handling complex models.
Article
Engineering, Civil
Longbo Li, Haiyan Li, Hongtao Zhao
Summary: This study investigates the wash-off process of road-deposited sediments (RDS) on asphalt and concrete roads under different particle sizes and rainfall intensities. It is found that both particle size and road surface characteristics significantly influence the RDS wash-off. To improve the estimation accuracy and convenience, a new coefficient (CPSI) is introduced to the exponential wash-off equation, resulting in an increased coefficient of determination (R2) from 0.7039 to 0.8677.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Hongze Liu, Fuguo Qiu, Mingchen Gao, Yongjian Che, Chaohong Tan, Ziyang Zhang, Rui Yan, Haiyan Li, Meipeng Jian
Summary: This study investigated the impact of RDS particle size on the migration dynamics of RDS and naphthalene. Smaller RDS particles showed higher mobility in stormwater runoff. Rainfall intensity, duration, and naphthalene concentrations affected the migration behaviors. The adsorption process of naphthalene in RDS was primarily governed by physical adsorption.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Yang Xiao, Bin Luan, Taotao Zhang, Dongfang Liang, Chi Zhang
Summary: Sediment originating from urban road runoff is a major cause of water pollution in urban areas. This study investigates the influence of sediment particle size distributions on the sediment wash-off process. The results demonstrate that the capacity factor CF increases with decreasing median particle diameter D50, which is the dominant influencing factor. The wash-off coefficient k is affected by both the D50 and sediment grading. The study also reveals that the presence of coarse grains hinders the transport of fine sediment during rainfall events.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Julios Armand Kontchou, Nicolai Baetz, Daniel Grabner, Milen Nachev, Jochen Tuerk, Bernd Sures
Summary: The overflow of stormwater retention basins during intense and prolonged precipitation events may introduce particulate pollutants and remobilize sedimented particle-bound pollutants to freshwater bodies, affecting aquatic biota. This study investigated the sediment pollution load of a stream connected to stormwater basins to assess the impact of their discharges on sediment metal and organic pollutant content. Toxicity tests with Lumbriculus variegatus were conducted to evaluate the adverse effects on benthic dwellers. The results showed that the retention basins contained the highest pollutant load and were more toxic compared to the stream sediment.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Houssou Assa Albert, Xiang Li, Paramsothy Jeyakumar, Lan Wei, Lianxi Huang, Qing Huang, Muhammad Kamran, Sabry M. Shaheen, Deyi Hou, Joerg Rinklebe, Zhongzhen Liu, Hailong Wang
Summary: The application of biochar in contaminated soils can effectively reduce Cd and Pb concentrations in plants, with factors such as plant types, biochar properties, and soil properties playing a role in the reduction process.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
XiaoJun Zuo, PengCheng Suo, Yang Li, Qiangqiang Xu
Summary: Recent studies have focused on antibiotic resistance genes (ARGs) in urban stormwater runoff, with sulfonamide resistance genes found to make up a significant portion of total ARGs. Research indicated that certain ARGs were mainly distributed in larger particulate matter, while others were dominant in smaller particulate matter.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Sadia Tamanna Khan, R. Edward Beighley, David VanHoven, Kathy Watkins
Summary: Urbanization leads to changes in stormwater flow that threaten water quality by impacting nutrients and sediment. This study characterizes phosphorus and solid particle characteristics in urban stormwater and explores design methods for their removal. New diversion and treatment strategies can effectively enhance the removal of phosphorus and solid particles.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Mohammad Feizbakhshan, Zaher Hashisho, David Crompton, James E. Anderson, Mark Nichols
Summary: The presence of oxygen negatively affects the thermal desorption of volatile organic compounds (VOCs) from activated carbon (AC). This study investigated the contribution of AC's physical properties to the accumulation of heel, which is a result of the reaction between oxygen and adsorbed VOCs. Three different ACs with different micro/mesopore structures were tested, and the experiments showed a correlation between the amount of heel and the microporosity of the ACs.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Construction & Building Technology
Ruiqing Chen, Angus Shiue, Junjie Liu, Yuan Zhi, Dingchao Zhang, Fiona Xia, Graham Leggett
Summary: Both on-site collection and off-site analysis methods were used to study airborne molecular contaminants (AMCs) in a semiconductor wafer cleanroom. The removal efficiency of chemical filters in the cleanroom was found to be approximately 50%, below the standard requirement. The presence of BTEX and other pollutants was also detected, with BTEX accounting for 77% of the total.
BUILDING AND ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
Shuji Yamashita, Shin-ichi Miyashita, Takafumi Hirata
Summary: Single particle inductively coupled plasma mass spectrometry was used to measure the size of individual nanoparticles. Two calibration approaches, particle size standard and ion standard solution, were evaluated for their uncertainties in size analysis. The relative uncertainties for 50 nm silver nanoparticles using particle size standards of 30 nm, 60 nm, and 100 nm were 15.0%, 9.9%, and 10.8% respectively. For the ion standard solution approach, the relative uncertainties for the 50 nm silver nanoparticles in solutions of 1 ng/g, 10 ng/g, and 100 ng/g were 18.5%, 7.6%, and 4.7% respectively. A high concentration working standard solution is recommended to improve precision on particle size determinations by spICP-MS.
Article
Environmental Sciences
Philipp Baum, Bertram Kuch, Ulrich Dittmer
Summary: The study examined the value and limitations of using the TSS parameter to evaluate the need for stormwater treatment and the effectiveness of treatment measures, with metals as an example. It found that metals showed different distribution patterns in different particle size fractions, highlighting the need for a more nuanced approach in assessing stormwater quality and treatment efficiency.
Article
Engineering, Mechanical
M. A. Mekicha, M. B. de Rooij, L. Jacobs, D. T. A. Matthews, D. J. Schipper
Summary: This paper experimentally studied the influence of rolling parameters on the generation of wear particles, and proposed a multi-scale wear model to predict the amount of wear particles generated in cold rolling processes. It was found that thickness reduction and roll roughness are the dominant process parameters controlling wear particles generation in cold rolling processes. The proposed model accurately captures the trend and provides values in the same order of magnitude as the experiments in terms of the volume of wear particles generated.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Engineering, Environmental
Wei Zhang, Peizhen Qu, Huichao Sun, Wu Che
Summary: The study aimed to assess the characteristics of different-sized particles in the first flush of roof runoff. Runoff samples were collected from an asphalt roof, metal roof, and cement roof for analysis. The particle size distributions in the runoff from the three roofs showed no clear patterns and were influenced by several factors. The strength of the first flushes differed significantly for particles in different size categories in the runoff from the three types of roofs and were different from suspended solids.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Tian-Wei Song, Lu-Jie Zuo, Ming Zuo, Hai-Wei Liang
Summary: Atomically ordered intermetallic catalysts show better intrinsic activity than disordered alloy counterparts for oxygen-reduction reaction in proton-exchange-membrane fuel cells. However, traditional wet-impregnation method leads to larger particles and lower mass-based activity due to metal sintering during high-temperature annealing. In this study, we quantitatively analyze the particle size, alloying degree, and ordering degree of PtFe and PtCo catalysts with different synthesis conditions and carbon supports, and achieve optimal intermetallic PtFe catalysts with small particle size and high ordering degree. The optimal PtFe catalyst exhibits high mass activity in both half-cell and single-cell tests.
JOURNAL OF CATALYSIS
(2023)
Article
Engineering, Industrial
Harry Sisley, Guvenc Dik, James McGree, Paul Corry
Summary: This paper examines the challenges of managing the supply chain for seasonal crops in Australia and introduces a supply chain model that manages the production of multiple crops across different regions. By using deterministic mixed integer programming and a heuristic solution method, the proposed model can solve the problem faster and with less deviation in the planning process.
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
(2023)
Article
Engineering, Environmental
Ping Zhu, Shuangshuang Gong, Mingqiang Deng, Bin Xia, Yazheng Yang, Jiakang Tang, Guangren Qian, Fang Yu, Ashantha Goonetilleke, Xiaowei Li
Summary: This study investigates the degradation of waste refrigerator polyurethane (WRPU) by mealworms and reveals that mealworms can ingest and degrade WRPU, causing changes in its composition and thermal stability. Carbon balance analysis confirms partial mineralization of ingested WRPU. The presence of impurities and odor in WRPU affects the appetite and nutrient intake of mealworms. WRPU also affects the gut microorganism of mealworms.
FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
(2023)
Article
Mathematical & Computational Biology
S. G. J. Senarathne, Werner G. Mueller, James M. McGree
Summary: Model-based geostatistical design involves selecting locations to collect data in order to minimize an expected loss function over all possible locations. The loss function reflects the goal of data collection, which in geostatistical studies is often to minimize prediction uncertainty at unobserved locations. This paper proposes a new approach to this design problem by considering the entropy of model predictions and parameters as part of the loss function. The approach extends to generalized linear spatial models, allowing for experiments with multiple responses.
BIOMETRICAL JOURNAL
(2023)
Article
Environmental Sciences
Beibei He, An Liu, Godfred O. Duodu, Buddhi Wijesiri, Godwin A. Ayoko, Ashantha Goonetilleke
Summary: This study examines the combined effects of catchment characteristics, sediment properties, and emerging pollutants (microplastics) on the presence of metals in urban river sediments. The results show variations in metal concentrations and enrichment along the Brisbane River, with crustal metals correlated with sediment properties and anthropogenic source metals correlated with catchment characteristics. Additionally, the presence of metals in sediments is positively correlated with microplastics concentration and negatively correlated with microplastics hazard indices.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
A. W. L. P. Thilan, P. Menendez, J. M. McGree
Summary: This study developed an approach to assess trends in hard coral cover and evaluate the effectiveness of adaptive designs for estimating such trends in coral reef communities. The findings show that adaptive designs can maintain trends over time with little to no loss in information, even with reduced sampling effort. This research serves to further promote adaptive design methods for efficient and effective ecological monitoring.
Article
Engineering, Civil
I. P. Gustave S. Pariartha, Shubham Aggarwal, Srinivas Rallapalli, Prasanna Egodawatta, James McGree, Ashantha Goonetilleke
Summary: Climate change and urbanization have adverse impacts on rainfall and sea level, contributing to future flood risk. This study presents an innovative flood damage and hazard prediction model that integrates MIKE FLOOD and GIS technology to assess flood scenarios for different time horizons. Results show that changes in rainfall patterns significantly affect the average annual damage caused by flooding. The proposed model can guide decision-makers in assessing future flood management.
JOURNAL OF HYDROLOGY
(2023)
Article
Agronomy
Mahmoud Masoud, Jeff Hsieh, Kate Helmstedt, James McGree, Paul Corry
Summary: Beef production plays a crucial role in Australia's agricultural economy, with an annual agricultural production value of AUD11 billion. The profitability of cattle farms is highly affected by weather conditions and the associated uncertainty in pasture growth, as well as the need to manage stocking rates to prevent overgrazing. Predictive modeling of pasture growth and cattle weight gain can effectively assist producers in managing this challenge.
FOOD AND ENERGY SECURITY
(2023)
Article
Business
Sayeed Mohammed, Cheryl Desha, Ashantha Goonetilleke
Summary: This study examines how hydrocarbon-dependent rentier states can undergo a low-carbon transition while still meeting the needs of their citizens. Using the Delphi method, the study focuses on Qatar and explores the characteristics of the required socio-technical transitions. Key attributes for a successful transition include strong political will, sustained financial support, long-term strategic policies, and a robust institutional framework.
TECHNOLOGICAL FORECASTING AND SOCIAL CHANGE
(2023)
Article
Engineering, Environmental
Uthpala Pinto, Shivanesh Rao, Daniel Phillip Svozil, Aaron Wright, Ashantha Goonetilleke
Summary: A holistic understanding of stormwater quality and quantity in catchment land use is crucial for effective stormwater management. This study investigated the quality and quantity of stormwater from different land use types, highlighting the complex nature of stormwater quality influenced by catchment and rainfall characteristics. The results showed varying patterns of physicochemical and hydrological variables across different land use types and flow conditions.
Article
Engineering, Chemical
Jie Yang, Zeyuan Zhao, Yulin Hu, Lord Abbey, Ivana Cesarino, Ashantha Goonetilleke, Quan He
Summary: This study investigated the influence of fabrication methods on the properties and potential applications of biochar and hydrochar materials derived from spent coffee grounds. Dry and wet methods resulted in biochar and hydrochar with different carbonization degrees and energy properties, suitable for various applications. Dry methods produced biochar for agricultural use, while wet methods produced hydrochar for environmental applications.
Article
Health Policy & Services
Jack Powers, James M. McGree, David Grieve, Ratna Aseervatham, Suzanne Ryan, Paul Corry
Summary: The use of a dynamic priority scoring (DPS) system can prioritize elective surgery patients more equitably based on waiting time and clinical factors, reducing subjectivity and increasing transparency in the waiting list management.
HEALTH CARE MANAGEMENT SCIENCE
(2023)
Article
Computer Science, Artificial Intelligence
Sander J. J. Leemans, James M. McGree, Artem Polyvyanyy, Arthur H. M. ter Hofstede
Summary: Through process mining, organisations can improve business processes by utilizing recorded data. Despite advances in the field, a solid statistical foundation is still lacking. This article contributes statistical tests and measures for treating process behavior as a variable, providing a more objective assessment method.
IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
(2023)
Article
Environmental Sciences
Yifan Hou, Shihui Wang, Yukun Ma, Zhenyao Shen, Ashantha Goonetilleke
Summary: This study examines the impact of the landscape pattern of permeable/impermeable patches on the concentrations of NO3--N and PON during stormwater runoff transport and their source contributions. The results show that a less fragmented, more complex, and highly connected landscape pattern can decrease the nitrogen concentrations in stormwater runoff. Additionally, by optimizing the spatial arrangement, low impact development (LID) can be combined with the landscape pattern of permeable/impermeable patches to mitigate nitrogen pollution in urban stormwater at the catchment scale.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Review
Engineering, Environmental
Oscar M. Rodriguez-Narvaez, Kannan Nadarajah, V. A. Suarez-Toriello, Erick R. Bandala, Ashantha Goonetilleke
Summary: This study reviews the latest research on the synthesis, characteristics, water treatment applications, and life cycle analysis of engineered hydrochar (EHC). It highlights the lack of knowledge regarding the environmental impacts of EHC production, application, and disposal. The study found that the modification of hydrochar can improve its adsorption capacity. Future research should focus on understanding the environmental footprint of EHC and conducting life cycle assessments.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Rong-Gui Zhu, Chang-Gui Pan, Feng-Jiao Peng, Chao-Yang Zhou, Jun-Jie Hu, Kefu Yu
Summary: This comprehensive survey investigated the occurrence, bioaccumulation, and trophic magnification of parabens and their metabolite 4-HB in a marine food web. Results showed that parabens were the predominant pollutants in marine organisms, with significant bioaccumulation from sediments. The estimated trophic magnification factor indicated biomagnification for MeP and trophic dilution for 4-HB. Overall, the risks for humans consuming marine organisms were found to be low.
Article
Engineering, Environmental
Andres F. Torres-Franco, Deborah Leroy-Freitas, Cristina Martinez-Fraile, Elisa Rodriguez, Pedro A. Garcia-Encina, Raul Munoz
Summary: Anaerobic and microalgae-based technologies have emerged as sustainable alternatives for municipal wastewater treatment. However, the presence of viruses in the treated wastewater is a major concern for reuse applications. This study assessed the ability of these technologies to reduce viruses during secondary wastewater treatment. The results showed that all technologies were effective in reducing the concentration of viruses, with microalgae-based treatment exhibiting the highest potential for reducing the disinfection requirements of treated wastewater.
Article
Engineering, Environmental
Young Gwang Kim, Sae Yun Kwon, Spencer J. Washburn, Scott C. Brooks, Ji Won Yoon, Lucien Besnard
Summary: The study uses Hg isotope ratios to identify the sources and exposure pathways of mercury in bivalves, finding that dissolved Hg phases in the water column are the primary source and exposure pathway to bivalves. This provides new insights into using bivalves as bioindicators for sediment quality monitoring.
Article
Engineering, Environmental
Hui Geng, Ying Xu, Rui Liu, Dianhai Yang, Xiaohu Dai
Summary: This study investigates the effect of cation exchange resin (CER) on the sequential recovery of hydrogen and methane from anaerobic digestion (AD) and the corresponding mechanisms. The results show that CER can simultaneously enhance the production of hydrogen and methane by promoting the solubilisation, hydrolysis, and acidification of organic matter. Additionally, CER facilitates effective contact between bacteria and organic particulates and reduces the energy barrier for mass transfer during methane production. The study also reveals changes in the microbial community structure and metagenomics during the AD process.
Article
Engineering, Environmental
Xiaojing Lin, Zhan Jin, Shunfeng Jiang, Zhiquan Wang, Suqing Wu, Ke Bei, Min Zhao, Xiangyong Zheng
Summary: Dehumidification combined with addition of absorbent resin supplement (ARS) was used to achieve rapid evaporation of non-pretreated urine, resulting in high water evaporation efficiency and nutrient recovery.
Article
Engineering, Environmental
Yangli Che, Chaoran Lin, Shen Li, Jiao Liu, Longhai Zhu, Shilei Yu, Nan Wang, Haoshuai Li, Mutai Bao, Yang Zhou, Tonghao Si, Rui Bao
Summary: Hydrodynamic processes play a crucial role in the transmission of sediments, microbial assembly, and organic carbon redistribution in the ocean. Through experiments and analysis, we found that hydrodynamics shape the assembly of microbial communities and control the redistribution of different sourced organic carbon, thereby influencing microbial-mediated biogeochemical transformation.
Article
Engineering, Environmental
Chao Chen, Yu Yang, Nigel J. D. Graham, Zhenyu Li, Xingtao Yang, Zhining Wang, Nadia Farhat, Johannes S. Vrouwenvelder, Li -an Hou
Summary: The fouling of seawater reverse osmosis membranes is a persistent challenge in desalination. This study monitored the operational performance of a desalination plant for 7 years and the fouling development in different areas of membrane modules. The findings showed that operational performance declined over time and fouling mainly occurred at the feed side of the modules, with the highest microbial diversity. Keystone species like Chloroflexi and Planctomycetes played an important role in maintaining community structure and biofilm maturation. Polysaccharides, soluble microbial products, marine humic acid-like substances, and inorganic substances contributed to fouling. Overall, biofouling had a significant impact on membrane fouling after 7 years of operation.
Article
Engineering, Environmental
Dan Li, Jieyi Sun, Yibo Fu, Wentao Hong, Heli Wang, Qian Yang, Junhong Wu, Sen Yang, Jianhui Xu, Yunfei Zhang, Yirong Deng, Yin Zhong, Ping'an Peng
Summary: Sulfidation-oxidation treatment of magnetite (Fe3O4) enhances the production of dark center dot OH, which can efficiently degrade dissolved organic matter (DOM) and accelerate carbon cycling.
Article
Engineering, Environmental
Cheng Yu, Kaijun Wang, Kaiyuan Zhang, Ruiyang Liu, Pingping Zheng
Summary: This study implemented a microaerobic-aerobic configuration in a full-scale municipal wastewater treatment facility and investigated the effects on sludge characteristics, pollutant removal, microbial community, and granulation mechanisms. The results showed successful transition from flocculent-activated sludge to well-defined AGS after two months of operation. The primary pathways for pollutant removal were simultaneous nitrification, denitrification, and phosphorus removal. Moreover, the incorporation of internal separators induced shifts in the flow pattern, which promoted granulation.
Article
Engineering, Environmental
Zhe Zhang, Shaoyang Hu, Guangrong Sun, Wei Wang
Summary: Halogenated aromatic disinfection byproducts (DBPs), such as halogenated phenols, have garnered widespread attention due to their high toxicity and prevalence. This study reports on the analysis, occurrence, and cytotoxicity of a group of emerging halogenated aromatic DBPs, known as halogenated polyhydroxyphenols (HPPs), in drinking water.
Article
Engineering, Environmental
Shengyue Chen, Jinliang Huang, Peng Wang, Xi Tang, Zhenyu Zhang
Summary: Accurate prediction of river water quality is crucial for sustainable water management. This study introduces wavelet analysis and transfer learning techniques to assist LSTM modeling, proposing a newly coupled modeling approach that improves short-term prediction of river water quality.
Article
Engineering, Environmental
Bang Du, Xinmin Zhan, Piet N. L. Lens, Yifeng Zhang, Guangxue Wu
Summary: Efficient anaerobic digestion relies on the cooperation of different microorganisms with different metabolic pathways. This study investigated the effects of different operational modes and the addition of powdered activated carbon (PAC) on ethanol metabolic pathways. The results showed that the SBR mode and the presence of CO2 facilitated ethanol metabolism towards propionate production, while the CFR mode with extended solids retention time enriched Geobacter. Adjusting operational modes and PAC addition can modulate anaerobic ethanol metabolism and enrich Geobacter.
Article
Engineering, Environmental
Wanfa Wang, Si-Liang Li, Jun Zhong, Yuanbi Yi, Fujun Yue, Zenglei Han, Qixin Wu, Ding He, Cong-Qiang Liu
Summary: This study compares the carbon biogeochemical processes in karst and non-karst regions within large thermal stratified river-reservoir systems. The results demonstrate that karst reservoirs have a reduced potential for carbon emissions and highlight the importance of considering geologic settings to improve accuracy in regional and global CO2 emission estimates.
Article
Engineering, Environmental
Chunxia Jiang, Zelong Zhao, Dong Zhu, Xiong Pan, Yuyi Yang
Summary: This study analyzed the occurrence and distribution of antibiotic resistance genes (ARGs) in different environmental media of the Yangtze River using metagenomics. Core resistome dominated by multidrug resistance genes was found in all samples, while rare resistome dominated by various resistance genes was more prevalent in plasmids. Specific bacteria were identified as hosts for both core and rare resistomes, with high clinical concern ARGs found in the rare resistome. Particle-associated environment provided the most ideal conditions for resistome hosts. This study provided insights into the genetic locations of ARGs and the community assembly mechanisms of ARG hosts in freshwater environments.
Article
Engineering, Environmental
Yu Zhang, Yongtao He, Linchun Jia, Lei Xu, Zheng Wang, Yueling He, Ling Xiong, Xumeng Lin, Hong Chen, Gang Xue
Summary: By synergizing organic carbon source, thiosulfate, and zero-valent iron, efficient mixotrophic denitrification of oligotrophic secondary effluent can be achieved. Thiosulfate plays a vital role in promoting TN removal efficiency, while corrosion of Fe0 releases OH- to neutralize H+ from thiosulfate-driven denitrification, creating a suitable environment for denitrification. The coordination of thiosulfate and Fe0 maintains the dominance of Thiobacillus for denitrification.