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7th International Conference on Civil engineering and Architecture, ICCEA 2024

作者： Wulandari, Siska Nugroho, Eka Oktariyanto Nugroho, Joko Cahyono, Muhammad Saurena, Alfandias Widyaningtias Asferizal, Ferial Master Program of Water Resource Engineering Faculty of Civil and Environmental Engineering Institut Teknologi Bandung Jl. Ganesha No. 10 Bandung 40132 Indonesia Water Resources Engineering Research Group Faculty of Civil and Environmental Engineering Institut Teknologi Bandung Jl. Ganesha No. 10 Bandung 40132 Indonesia Ministry of Public Works and Housing Jalan Pattimura 20 Jakarta Indonesia Department of Integrated Water Management Engineering Institut Teknologi Sumatera Lampung Indonesia

ISBN: (纸本)9789819661145

The Muara Beting coastal area on the north coast of Java, Indonesia, faces coastal erosion processes that gradually affect the decrease of mangrove land. That process causes the land to be extremely eroded and become closer to the Citarum River. The seawater intrusion occurs within the decreasing land mangroves. If erosion persists, the increased seawater intrusion might result in the convergence of the pond area with the Citarum River. This study aims to simulate and analyze how the “Building with Nature” building can be applied as a mitigation strategy through Delft3D simulations. Data was collected through field surveys, satellite image analysis, and library observations to evaluate the impact of the proposed solutions. The simulations used bathymetry, sediment characteristics, wind, tide, and river discharge measurements for input data. Apart from simulating natural conditions, several scenarios were also arranged based on the placement of permeable structures combined with the floodway. The best scenario was selected from where cumulative sedimentation and erosion and the cross-sectional depth show best. This study's findings will be intended to assist Muara Beting’s coastal community in reconstructing pond land that has been harmed by coastal erosion, allowing the locals to carry on with their pond-related livelihoods. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

关键词： Building with Nature Coastal erosion Delft3D Muara Beting sedimentation

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GENERALIZED KINETIC-MODEL FOR WET OXIDATION OF ORGANIC-COMPOUNDS

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AICHE JOURNAL 1991年第11期37卷 1687-1697页

作者： LI, LX CHEN, PS GLOYNA, EF Separations Research Program and Environmental and Water Resources Engineering University of Texas Austin TX 78758

A generalized kinetic model for wet oxidation (WO) of organic compounds was developed based on a simplified reaction scheme considering acetic acid as the rate-limiting intermediate. The selectivity of product vs. intermediate formations was quantified by the ratio of the two reaction rate constants. This point selectivity alpha may be used to characterize the "strength" of the feed stream to be treated. This global model was validated using WO kinetic data reported for temperatures ranging from 150-degrees-C to 550-degrees-C and pressures varying from 20 bar to 440 bar. Organic conversions predicted by this model, as compared to other models, more accurately reflect the actual performance of WO processes. The model has practical validity for a variety of organic compounds, wastewaters and sludges in both subcritical and supercritical water oxidation processes.

关键词： Organic Compounds

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SEPARATION OF INORGANIC SALTS FROM SUPERCRITICAL water BY CROSS-FLOW MICROFILTRATION

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SEPARATION SCIENCE AND TECHNOLOGY 1995年第7-9期30卷 1491-1509页

作者： GOEMANS, MGE LI, L GLOYNA, EF [a] Environmental and Water Resources Engineering and Separations Research Program The University of Texas at Austin Austin Texas

A cross-flow microfilter capable of operating at elevated temperatures and pressures was evaluated for its ability to remove inorganic salts from supercritical water (SCW). The separation characteristics of-molten sodium nitrate were investigated. The overall performance of the cross-flow microfilter and the effects of process variables on the separation efficiency were evaluated. Separation efficiencies up to 85% were observed. An empirical model was developed for the prediction of the filtrate salt concentration and the fluidized cake resistance as a function of the salt solubility and salt flux to the filter. Physical principles governing the separation process were defined.

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Drought propagation in an Andean basin in South America: a spatio-temporal analysis approach with monitoring indices

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Arabian Journal of Geosciences 2025年第3期18卷 1-21页

作者： Ocampo-Marulanda, Camilo Mera-Franco, Julián David Lizcano, Víctor Augusto Carvajal-Escobar, Yesid Canchala, Teresita Zorrilla-Millan, Daniel Felipe Caicedo-Bravo, Eduardo Water Resources Engineering and Soil Research Group (IREHISA) School of Natural Resources and Environmental Engineering Universidad del Valle Cali Colombia Graduate Program in Biometrics and Applied Statistics Department of Statistics and Informatics Federal Rural University of Pernambuco Recife Brazil School of Exact Sciences and Engineering Universidad Sergio Arboleda Bogotá Colombia Programa de Ingeniería Ambiental Facultad de Ingeniería Universidad Mariana Pasto Colombia School of Electrical and Electronic Engineering Universidad del Valle Cali Colombia

Drought is a climatic phenomenon that has increased in severity over time. This study analyzed drought spread in the Alto Patía basin (13,047 km2) in South America, applying the Standardized Precipitation Index (SPI), Vegetation Health Index (VHI), and Streamflow Drought Index (SDI) to assess meteorological, agricultural, and hydrological drought, respectively. Synchronous and asynchronous correlations were estimated, and Wavelet analysis was conducted to verify relationships among drought types. Results show that the lag between drought types varies based on the intensity, temporal continuity, and spatial extent of meteorological drought. A lag of zero months (1–2 months) was observed between meteorological and hydrological drought when moderate (severe) meteorological drought partially (fully) covers the basin. Agricultural drought, however, does not always correspond to meteorological drought during isolated rainfall events. As the first study in Colombia to systematically connect these drought types, this research addresses a gap in understanding how drought impacts progress across systems in regions with complex rainfall patterns. These findings offer critical insights into the interdependencies among drought types, supporting enhanced drought monitoring and early warning systems in similar climatic regions. By identifying specific lags between meteorological and hydrological droughts, this study provides practical guidance for land management, water conservation, and crop planning, offering a foundation for future research on drought resilience strategies.

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Fluvial geomorphology of the Middle Reach of the Huai River

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International Journal of Sediment research 2014年第1期29卷 24-33页

作者： Bang-yi YU Peng WU Jue-yi SUI Xing-ju YANG Jin NI Research Institute of Water Resources Engineering of Anhui Province Environmental Engineering Program University of Northern British Columbia

The Middle Reach of the Huai River（MRHR） flows northeast into the Hongzehu *** entering the Hongzehu Lake,the Huai River has a braided channel which is shallow and wide,and the riverbed has a negative *** on the characteristics of the MRHR,this river reach can be divided into the following sections:a quasi-straight（or mildly curved） section,a bend section,and a braided *** majority of the MRHR is *** this paper,several parameters are used to assess the geomorphology of the *** analyses are performed to establish a relationship between the span length "L" and channel width "B" for different channel *** relationship between the meandering length "S" and bankfull channel width "B" is also *** indicate that the bankfull channel width "B",the bankfull cross sectional area "A" and the average flow depth "H" are mainly dependent on the dominant discharge in the channel.A relationship is derived that describes the dependency of the curvature radius "R" on the dominant discharge "Q",water surface slope "J" and the turning angle;.

关键词： Braided channel Dominant discharge Huai River Channel pattern

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Changes in runoff and sediment load from major Chinese rivers to the Pacific Ocean over the period 1955-2010

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International Journal of Sediment research 2013年第4期28卷 486-495页

作者： Cheng LIU Jueyi SUI Yun HE Faye HIRSHFIELD International Research and Training Center on Erosion and Sedimentation Environmental Engineering Program University of Northern British Columbia China Institute of Water Resources and Hydropower Research University of Northern British Columbia

Changes in runoff and sediment loads to the Pacific Ocean from 10 major Chinese rivers are presented in this *** quantitatively assess trends in runoff and sediment loads,a parameter called the "Trend Ratio 7"" has been defined in this *** summarize total runoff and sediment load from these rivers,data from 17 gauging stations for the duration 1955 to 2010 has been standardized,and the missing data have been interpolated by different approaches according to specific *** the observed 56-year study period,there is a quite stable change in total *** show that the mean annual runoff flux entering the Pacific Ocean from these rivers is approximately 1,425billion cubic *** is found that all northern rivers within semi-arid and transitional zones including the Songhua,Liaohe,Haihe,Yellow and Huaihe rivers present declining trends in water *** runoff in all southern rivers within humid zones including the Yangtze,Qiantang,Minjiang,Pearl and Lancang rivers docs not change much,except for the Qiantang River whose annual runoff slightly *** annual sediment loads of all rivers show significant declining trends;the exceptions are the Songhua and Lancang rivers whose annual sediment loads have increasing ***,the mean annual sediment flux carried into the Pacific Ocean decreased from 2,026million tonnes to 499 million tonnes over the 56-ycar *** this time there were 4 distinct decreasing *** decrease in annual sediment flux is due to the integrated effects of human activity and climate *** reduction in sediment flux makes it easy for reservoir operation;however,the decrease in sediment flux also creates problems,such as channel erosion,river bank collapse and the retreat of the delta area.

关键词： Runoff Sediment load Pacific Ocean Yellow River Yangtze River

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Communal-based domestic rainwater harvesting system: A novel approach to alternative solutions for increasing water supply and recharging groundwater in Jagakarsa urban area, South Jakarta

Case Studies in Chemical and Environmental Engineering

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Case Studies in Chemical and environmental engineering 2025年 11卷

作者： Suprapti, Suprapti Kusuma, Muhammad Syahril Badri Kardhana, Hadi Cahyono, Muhammad Juliana, Imroatul Chalimah Doctoral Program of Civil Engineering Faculty of Civil and Environmental Engineering Institut Teknologi Bandung Jl. Ganesha No. 10 Jawa Barat Bandung 40132 Indonesia Water Resources Engineering Group Faculty of Civil and Environmental Engineering Institut Teknologi Bandung Jl. Ganesha No. 10 Jawa Barat Bandung 40132 Indonesia Civil Engineering Department Faculty of Engineering and Sciences Ibnu Khaldun Bogor University Jl. Sholeh Iskandar Km. 2 Jawa Barat Kota Bogor 16162 Indonesia Research Center for Ecohydrology Ecohydraulics and Engineering Science Bandung Jl. Babakan Jeruk 1 No. 100 Jawa Barat Bandung 40132 Indonesia Civil Engineering Study Program Sriwijaya University Jl. Raya Lintas Timur Palembang - Prabumulih No. Km. 32 Indralaya Indah South Sumatra Indralaya Indonesia Study Program of Civil Engineering Faculty of Engineering Universitas Mercu Buana Jl. Meruya Selatan No. 01 Kembangan-Jakarta Barat Jakarta 11650 Indonesia

This study proposes a new approach, a communal-based domestic rainwater harvesting (CDRWH) system, which is a new model that combines domestic and communal rainwater harvesting systems. This model is an alternative solution to improve system performance and utilize rainwater overflow from the system. Rainwater runoff from several domestic tanks is channeled to a communal tank to be collected, processed, and redistributed to needy domestic tanks. Overflow from the communal tank is used for groundwater recharge. The CDRWH system model aims to increase water supply, reduce runoff, and conserve groundwater. The model simulation uses daily water balance analysis and yield before spillage algorithm. The simulation scenario uses variations in roof area, number of house occupants, storage tank volume, and rainfall categories: 20 years, wet year, normal year, and dry year. Jagakarsa, an urban area in South Jakarta, was selected for the CDRWH system modeling. The results showed that the CDRWH model significantly improved the performance of the volumetric reliability (VR) and time reliability (TR) systems. In addition, the model could show a comparison of total groundwater recharge (GWR) and groundwater extraction (GWE), where the GWR capacity was higher. This allows centralized rainwater management in communal tanks, thereby reducing groundwater usage. The design of this model is simple. Therefore it can be easily duplicated for application in other locations. © 2025 The Authors

关键词： Communal-based domestic rainwater harvesting (CDRWH) Groundwater extraction (GWE) Groundwater recharge (GWR) Jagakarsa-South Jakarta Reduced runoff water supply

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The Curve Number's Initial Abstraction and Physical Hydrology: ASCE-EWRI CN Hydrology Committee Synthesis

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Journal of Irrigation and Drainage engineering 2025年第4期151卷

作者： Bonta, James Chin, David A. Johnson, Michael S. Miller, Julianne J. Minervini, William Ramirez-Avila, John Moglen, Glenn Neelam, Tahneen Jahan Oliveira, Paulo Tarso S. Sharma, Suresh Talchabhadel, Rocky Tollner, Ernest W. Walter, M. Todd Ward, Tim Woodward, Donald E. Hydraulic Engineer Watershed Physical Processes Unit USDA-ARS National Sedimentation Lab OxfordMS38655 United States Dept. of Chemical Environmental and Materials Engineering Univ. of Miami Coral GablesFL33146 United States Buck Seifert & Jost Inc. NorwoodNJ07648 United States Division of Hydrologic Sciences Desert Research Institute Las VegasNV89119 United States Supervising Environmental Specialist NJ Dept. of Environmental Protection ColumbusNJ08022 United States Watersheds and Water Quality Research Lab Richard A. Rula School of Civil and Environmental Engineering Mississippi State Univ. Mississippi StateMS39762 United States Dept. of Civil and Environmental Engineering Univ. of North Carolina at Charlotte CharlotteNC28223 United States Biological and Environmental Engineering Cornell Univ. IthacaNY14850 United States Dept. of Geography Federal Univ. of Mato Grosso Do Sul CxP. 549 Campo MS Grande79070-900 Brazil Civil and Environmental Engineering Program Youngstown State Univ. YoungstownOH44555 United States Dept. of Civil and Environmental Engineering Jackson State Univ. JacksonMS39217 United States Dept. of Agricultural Engineering Engineering Education Transformations Institute College of Engineering Univ. of Georgia AthensGA30602 United States School of Engineering Manhattan Univ. RiverdaleNY10471 United States National Hydrologist USDA Natural Resources Conservation Service Derwood Maryland 20855 and Hydraulic Engineer 415 Russell Ave. #208 GaithersburgMD20877 United States

The curve number method for estimating rainfall runoff has continually evolved since its creation in the mid-20th century. Because it is inherently an empirical model that is broadly applied to many hydrological applications, the rationales for its parameters have become removed from physical interpretation over its evolution. The ASCE EWRI CN-Hydrology Committee, i.e., some of the foremost experts on this methodology, often finds itself internally at odds regarding many aspects of CN-hydrology. Here, the committee has synthesized its member's perspectives on the physical interpretations of one CN-method parameter, the initial abstraction (Ia). This note provides insights into how the Ia concept has evolved and offers some context into reasons behind its evolution. This note also synthesized different interpretations of Ia within the framework of different hydrological settings, applications, and spatial scales. Broadly speaking, the committee suggests that Ia might need to be interpreted on a case-by-case basis although this note places reasonable boundaries on Ia for most applications. © 2025 American Society of Civil Engineers.

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Sadewa satellite remote sensing data to Manggarai 1-hour water level machine learning model 8

Sadewa satellite remote sensing data to Manggarai 1-hour wat...

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8th International Conference on Advanced Informatics: Concepts, Theory, and Application, ICAICTA 2021

作者： Valerian, Jonathan Raditya Rohmat, Faizal Kardhana, Hadi Kusuma, Muhammad Syahril Badri Yatsrib, Muhammad Institut Teknologi Bandung Master of Water Resources Management Faculty of Civil and Environmental Engineering Bandung Indonesia Institut Teknologi Bandung Water Resources Research Group Faculty of Civil and Environmental Engineering Bandung Indonesia Institut Teknologi Bandung Water Resources Engineering and Management Study Program Faculty of Civil and Environmental Engineering Bandung Indonesia

ISBN: (纸本)9781665417433

The Manggarai water Gate is a measurement point strategically located to measure Jakarta's flooding magnitude that keeps increasing from year to year. The 2015s gate capacity improvement underscores this importance. This paper applies a machine learning model that utilizes an atmospheric approach to predict the Manggarai water level as output. In the process, optimization is done by comparing three spatial input sizes and performing a sensitivity analysis of the input variables. Using a simple recurrent sequence, the model can predict the water level with a coefficient of determination (R2) reaching 0.7 using 18-hour recurrent data. This study can be used as the basis for further development that can take satellite data lead time advantage that is crucial for the early warning system. © 2021 IEEE.

关键词： water levels

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Implications of technological improvement and circular agriculture on environmental sustainability of sugarcane production

Cleaner Environmental Systems

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Cleaner environmental Systems 2025年 18卷

作者： Aakriti Deuja Min Hein Khant Thapat Silalertruksa Shabbir H. Gheewala Trakarn Prapaspongsa Graduate Program in Environmental and Water Resources Engineering Department of Civil and Environmental Engineering Faculty of Engineering Mahidol University Nakhon Pathom Thailand Department of Environmental Engineering Faculty of Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand The Joint Graduate School of Energy and Environment King Mongkut's University of Technology Thonburi Bangkok Thailand Centre of Excellence on Energy Technology and Environment Ministry of Higher Education Science Research and Innovation Bangkok Thailand

The spatially differentiated environmental impacts and associated costs of technological improvement and circular agricultural practices in sugarcane production were assessed. Analysis of the cause-effect relationship between the key processes and substances each helped develop alternative scenarios for impact reduction. PM 2.5 emissions contributed to 92 % of the total human health impacts from open burning of field residues. Freshwater ecotoxicity, mainly due to ametryn emissions from pesticide application, contributed to 47 % of the total damage to the ecosystem. The environmental costs were 116 % higher than the value of sugarcane production, signifying the critical importance of adopting alternative pathways that provide economic benefits from environmental cost reduction compared to the production value. Scenarios considering green cane harvesting and waste management approaches demonstrated high potential for total impact reduction of 99 % and 97 %, respectively, and economic gains of 202 and 225 billion THB, respectively (5.76 and 6.42 billion USD, respectively). The economic benefits of waste utilization were 137 % higher than the value of sugarcane production, demonstrating the potential benefits of product substitution to help mitigate impacts. The core findings highlight the significance of the PM 2.5 impact-related external costs and underscore the benefits of adopting green cane harvesting in conjunction with on-field waste utilization to mitigate the impact of open burning and produce value-added products. Technological improvement and circular agricultural practices coupled with valuation of spatially differentiated impacts can provide useful and more accurate information to policymakers, to prioritize the implementation of mitigation strategies for enhancing the environmental sustainability of sugarcane production.

关键词： Life cycle assessment On-site and supply chain emissions Human health Ecosystem environmental cost environmental sustainability

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