Article
Construction & Building Technology
Lanxin Sun, Jun Xia, Dunxian She, Qizhong Guo, Yuming Su, Wenyucheng Wang
Summary: Urban stormwater management is important for sustainable development. This study proposes a modified optimization approach to enhance peak outflow reduction of a small storage tank by integrating intra-storm predictive analysis and real-time control. The results show that the modified approach outperforms existing predictive and rule-based control methods in reducing peak outflow.
SUSTAINABLE CITIES AND SOCIETY
(2023)
Article
Engineering, Environmental
M. S. Romero-Guiza, X. Flotats, R. Asiain-Mira, J. Palatsi
Summary: This study shows that upgrading the sludge line of a wastewater treatment plant using advanced process control strategies can optimize sludge thickening, improve anaerobic digestion performance, reduce chemical consumption, increase energy self-sufficiency, and decrease sludge production.
Article
Engineering, Environmental
Hongyu Tian, Jianwei Liu, Yuxiu Zhang, Peng Yue
Summary: In order to remove multiple pollutants in the sewage sludge (SS) composting facility, a novel integrated industrial-scale biological reactor based on biological trickling filtration and fungal biological filtration (BTF-FBF) was developed. This study examined bioaerosol emission, odour removal, pollutant transformation mechanism, and project investment. The BTF-FBF reactor demonstrated high removal efficiencies for hydrogen sulfide, ammonia, and volatile organic compounds, as well as effective removal of pathogenic bioaerosols.
Article
Multidisciplinary Sciences
Hanwen Liu, Xiaobing Liu, Sardar M. N. Islam, Xueqiao Yu, Qiqi Miao, Yapin Chen, Lin Lin
Summary: This study proposes a low-carbon routing optimization combined with a multi-energy type vehicle strategy, using an improved genetic algorithm to consider the low-carbon behavior concept of chemical logistics companies, improving the efficiency and accuracy of operating cost and carbon emission targets.
SCIENTIFIC REPORTS
(2021)
Article
Water Resources
Nils Kandler, Ivar Annus, Anatoli Vassiljev
Summary: A technical solution using street storage units (SSU) and a real-time control algorithm has been developed to control stormwater runoff and mitigate flood risk during extreme weather events. The system was successfully tested in Rakvere town, Estonia, reducing the number of flood nodes by 30% by controlling 6% key inflows with SSUs.
URBAN WATER JOURNAL
(2022)
Article
Engineering, Environmental
Zhen Qin, Zaoxiao Zhang, Xiaoqian Ma
Summary: This study analyzes the effects of sewage sludge blending on the performance of Integrated Gasification Combined Cycle (IGCC) systems based on different gasification technologies and coals. The results show that the blending of sewage sludge has a positive impact on the overall energy efficiency and economic performance in wet gasification technology.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Green & Sustainable Science & Technology
Jianyu Guan, Huichuan Zhuang, Chun Yin Lau, Ling Leng, Chi Shun Yeung, Arun Krishna Vuppaladadiyam, Huaimin Wang, Ho-Yin Tse, Shao-Yuan Leu
Summary: Household food waste management is an emerging environmental issue impacting sustainable urban development. In-sink domestic food waste disposers have gained attention for their simplified waste handling and reduced household expenses. However, mixing food waste in the sewer system may lead to lower aeration efficiency and increased greenhouse gas emissions during wastewater treatment processes.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Energy & Fuels
Raju Wagle, Pawan Sharma, Charu Sharma, Mohammad Amin, Francisco Gonzalez-Longatt
Summary: This article proposes a method of using smart converters to achieve real-time reactive power control to address voltage regulation issues caused by distributed energy resources in distribution networks. Real-time Volt-Var control can be achieved through cyber-physical co-simulation between Typhoon HIL 604 and OpenDSS. Experimental results demonstrate that the proposed method is capable of handling voltage violations in real time in DER-enriched distribution networks.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Energy & Fuels
Ting Yang, Pan Zhang, Jian Zhang, Hao Ji, Wei Li
Summary: This paper proposes a novel coordination control method for an integrated solar combined cycle thermoelectric coupling system. The system's dynamic performance and robustness are improved by introducing an inertial power compensation scheme to address the mismatch in energy response speed. Furthermore, the control precision of the controller is enhanced through the use of an intelligent optimization algorithm.
Review
Water Resources
Wei D. Xu, Matthew J. Burns, Frederic Cherqui, Tim D. Fletcher
Summary: Real-Time Control (RTC) technology has the potential to improve the performance of Stormwater Control Measures (SCMs) and enhance urban water management efficiency. However, new regulatory environments, governance, and business models are critical for facilitating widespread implementation.
URBAN WATER JOURNAL
(2021)
Article
Environmental Sciences
Xiaojuan Cheng, Shiqi Ouyang, Chunguang Quan, Guiju Zhu
Summary: The allocation of provincial carbon emission quotas under total amount control is an effective approach for China to achieve its carbon peak and neutrality targets. A study was conducted to determine the factors influencing China's carbon emissions using the expanded STIRPAT model and scenario analysis method. The index system of regional carbon quota allocation was then established based on equity, efficiency, feasibility, and sustainability principles. The results showed variations in provincial carbon quota allocation across China and a modest surplus of future carbon emission space for the country.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Wei Xu, Zhulin Liu
Summary: In 2017, China initiated comprehensive control measures for rural water pollution, with the aim of completing the purification of rural domestic sewage by 2030. Short-term goals focused on ensuring safe drinking water, while medium and long-term goals aimed to eliminate all sources of pollution. Mathematical models were used to assess progress in rural sewage treatment, the efficiency of treatment facilities, and the current state of water pollution in China. Results indicate that the short-term goals have been largely achieved, with a 98% rural tap water penetration rate and approximately 95% of water meeting drinking standards. However, implementing medium and long-term goals has been challenging due to weak rural economy, scattered residences, and high sewage treatment costs. The treatment rate for agricultural non-point source sewage and domestic sewage remains low, and surface water in rural areas is generally classified as Class IV or V. The study identified insufficient economic support as a key factor hindering effective sewage treatment, suggesting that the government should increase investment in rural sewage treatment facilities.
Article
Environmental Sciences
Jigu Seo, Boseoup Yun, Jisu Park, Junhong Park, Myunghwan Shin, Sungwook Park
Summary: This paper presents a road vehicle emission model that integrates an artificial neural network (ANN) model with a vehicle dynamics model to predict the instantaneous carbon dioxide (CO2), nitrogen oxides (NOx) and total hydrocarbon (THC) emissions of diesel light-duty vehicles. Real-world measurement data were used to train a multi-layer feed-forward ANN model, which showed satisfactory prediction accuracy for road vehicle emissions. The optimal combination of experimental variables was selected as the ANN input, achieving both practicality and accuracy in predicting vehicle emissions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Economics
Albert Biber, Christoph Wieland, Hartmut Spliethoff
Summary: As energy supplies shift towards renewable energy, conventional power plants need to improve flexibility to balance the volatility. The integration of energy storage devices proves helpful in increasing ramp-rates and reducing minimum-load. A valuation tool based on market data showed that pumped hydro storage systems and power-to-gas systems can improve profitability, while other storage types require additional market opportunities. Battery storage systems can reduce ramp time but are not suitable for day-ahead and intra-day markets.
Article
Engineering, Civil
J. A. van der Werf, Z. Kapelan, J. Langeveld
Summary: This paper aims to understand the risks associated with using a non-perfect internal MPC-model, real precipitation forecast, and realistic dynamic system capacity fluctuations. The results obtained demonstrate that precipitation forecast uncertainty is associated with a small relative system performance loss, while significant performance loss was observed as a consequence of uncertainties in the internal MPC model and the actual sewer system capacity available.
JOURNAL OF HYDROLOGY
(2023)
Article
Green & Sustainable Science & Technology
Mohanasundar Radhakrishnan, Roland Lowe, Richard M. Ashley, Berry Gersonius, Karsten Arnbjerg-Nielsen, Assela Pathirana, Chris Zevenbergen
PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-ENGINEERING SUSTAINABILITY
(2019)
Article
Multidisciplinary Sciences
B. C. Rogers, N. Bertram, B. Gersonius, A. Gunn, R. Loewe, C. Murphy, R. Pasman, M. Radhakrishnan, C. Urich, T. H. F. Wong, K. Arnbjerg-Nielsen
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2020)
Article
Water Resources
Julie Skrydstrup, Herle Mo Madsen, Roland Lowe, Ida Bulow Gregersen, Agnethe Nedergaard Pedersen, Karsten Arnbjerg-Nielsen
URBAN WATER JOURNAL
(2020)
Article
Engineering, Civil
Cecilie Thrysoe, Thomas Balstrom, Morten Borup, Roland Lowe, Behzad Jamali, Karsten Arnbjerg-Nielsen
Summary: Urban flood modelling is essential in assessing flood risks, and FloodStrom, a fast-dynamic GIS-based flood model, has shown promising results in generating flood depth maps and associated damage costs. The model has demonstrated good performance in reproducing flooding characteristics in different sub-catchments, with potential for further optimization to improve simulation time efficiency.
JOURNAL OF HYDROLOGY
(2021)
Article
Computer Science, Interdisciplinary Applications
Ari Johannesson, Luca Vezzaro, Peter Steen Mikkelsen, Roland Lowe
Summary: This study proposes an unsupervised model selection procedure for identifying data-driven forecast models for urban drainage systems and evaluates the models in terms of different model structures and objective functions.
JOURNAL OF HYDROINFORMATICS
(2021)
Article
Engineering, Civil
Roland Loewe, Julian Boehm, David Getreuer Jensen, Jorge Leandro, Soren Hojmark Rasmussen
Summary: This study investigates how deep learning can optimize the prediction of 2D maximum water depth maps in urban pluvial flood events by training a neural network model to exploit patterns in hyetographs and topographical data. The U-NET architecture is adapted for this purpose, and a model with 28,000,000 parameters is found to be optimal. U-FLOOD demonstrates similar predictive performance to existing screening approaches for natural rain events and unknown locations, generating flood predictions within seconds.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Environmental
Rocco Palmitessa, Morten Grum, Allan Peter Engsig-Karup, Roland Lowe
Summary: This study proposes a physics-guided machine learning approach for fast and accurate surrogate modelling of urban drainage system hydraulics. It significantly reduces simulation times compared to traditional HiFi models while preserving a high level of model detail.
Review
Environmental Sciences
Julie Skrydstrup, Roland Lowe, Ida Billow Gregersen, Mark Koetse, Jeroen C. J. H. Aerts, Marleen de Ruiter, Karsten Arnbjerg-Nielsen
Summary: Nature-based solutions have the potential to reduce hydro-meteorological risks in urban areas and provide recreational value for the local inhabitants. This study focuses on smaller areas and nature types suitable for urban flood adaptation and identifies determining factors of recreational value, such as the size of the solution, population density, and maximum traveling distance. The findings suggest that existing studies may overestimate recreational value for smaller nature-based solutions.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Review
Environmental Sciences
Martina Viti, Roland Lowe, Hjalte J. D. Sorup, Marzenna Rasmussen, Karsten Arnbjerg-Nielsen, Ursula S. McKnight
Summary: The valuation of non-tangible benefits of nature-based solutions still lacks a common framework and there are missed opportunities for integrated assessment of non-market human and nature benefits. The existing research seems to be based on a case-by-case approach and lacks a shared holistic method, potentially delaying the adoption of nature-based solutions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Peter Bauer-Gottwein, Henrik Grosen, Daniel Druce, Christian Tottrup, Heidi E. Johansen, Roland Lowe
Summary: The study shows that using drones for SWE mapping at intermediate scales (up to a few square kilometers) has significant potential, bridging the scale gap between ground observations and satellite EO, and can be used for benchmarking and validating SWE mapping products as well as models predicting inundation.
Review
Biodiversity Conservation
Anna Lea Eggert, Roland Lowe, Karsten Arnbjerg-Nielsen
Summary: Current adaptation responses to sea-level rise tend to focus on protecting existing infrastructure, resulting in unsustainable adaptation pathways. Meanwhile, urban development without considering climate risks compromises a city's adaptive capacity. This paper develops a framework for integrating sustainability assessments of sustainable urban development (SUD) and coastal adaptation to climate change (CACC). Through a literature review, the study identifies common indicators and reveals differences and similarities between the two frameworks. The study also points out complementary and conflicting objectives that can either advance or hinder the effective integration of SUD and CACC.
ECOLOGICAL INDICATORS
(2023)
Article
Environmental Sciences
Martina Viti, Roland Lowe, Hjalte J. D. Sorup, Jacob Ladenburg, Oliver Gebhardt, Signe Iversen, Ursula S. McKnight, Karsten Arnbjerg-Nielsen
Summary: When assessing strategies for implementing Nature-Based Solutions (NBS), it is important to consider the preferences and attitudes of people interacting with NBS sites and their connection to efforts to reduce biodiversity loss. A lack of primary data linking the valuation of NBS sites with human perceptions is a critical gap. In this study, a contingent valuation survey was conducted in Aarhus, Denmark to explore the relationship between NBS valuation and user characteristics. The results show that personal preferences of respondents are the most relevant driver of NBS value.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Computer Science, Interdisciplinary Applications
Roland Lowe, Michael Mair, Agnethe N. Pedersen, Manfred Kleidorfer, Wolfgang Rauch, Karsten Arnbjerg-Nielsen
COMPUTERS ENVIRONMENT AND URBAN SYSTEMS
(2020)
Article
Geosciences, Multidisciplinary
Roland Lowe, Karsten Arnbjerg-Nielsen
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
(2020)
Article
Urban Studies
Roland Lowe, Manfred Kleidorfer, Karsten Arnbjerg-Nielsen
