Pub Date : 2022-08-29DOI: 10.1080/23249676.2022.2113460
S. A. Al-Asadi, A. Alhello, H. Ghalib, W. Muttashar, Hatim T. Al-Eydawi
The variability of the estuary location has drawn much attention of the policymakers due to its importance in various environmental issues. This study aims to detect the spatial variation of salts in the water of Shatt Al-Arab River (SAR) in southern Iraq to show the extent of the saltwater penetration into the river during years the 2019-2020. The study used four water sample stations distributed along the southern river part. The study classified the mixing process of the river water into strong and weak stratification as well as partial and moderate stratification. The horizontal distance for the seawater intrusion into the SAR was approximately between 83.7 and 112.4 km. It seems the estuary position moves towards the upstream due to the dominance of seawaters over the river waters in the section. This study is a step towards a better understanding of the salinity issue in the complicated transitional ecosystem.
{"title":"Seawater intrusion into Shatt Al-Arab River, Northwest Arabian/Persian Gulf","authors":"S. A. Al-Asadi, A. Alhello, H. Ghalib, W. Muttashar, Hatim T. Al-Eydawi","doi":"10.1080/23249676.2022.2113460","DOIUrl":"https://doi.org/10.1080/23249676.2022.2113460","url":null,"abstract":"The variability of the estuary location has drawn much attention of the policymakers due to its importance in various environmental issues. This study aims to detect the spatial variation of salts in the water of Shatt Al-Arab River (SAR) in southern Iraq to show the extent of the saltwater penetration into the river during years the 2019-2020. The study used four water sample stations distributed along the southern river part. The study classified the mixing process of the river water into strong and weak stratification as well as partial and moderate stratification. The horizontal distance for the seawater intrusion into the SAR was approximately between 83.7 and 112.4 km. It seems the estuary position moves towards the upstream due to the dominance of seawaters over the river waters in the section. This study is a step towards a better understanding of the salinity issue in the complicated transitional ecosystem.","PeriodicalId":51911,"journal":{"name":"Journal of Applied Water Engineering and Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42069510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-24DOI: 10.1080/23249676.2022.2114025
E. Hidayah, G. Halik, I. Indarto, D. W. Khaulan
The availability of a flood hazard map is beneficial during flood risk reduction. However, there is a lack of high-resolution topographic data, which is a map realization obstacle. Therefore, this study aims to construct flood hazard maps based on hazard levels for various flood return periods. The 2D-hydrodynamic from the Hydrologic Engineering Center's River Analysis System (HEC-RAS) and Digital Surface Models (DSM) from Unmanned Aerial Vehicle (UAV) imagery were used for generating inundation maps. The results showed that simulation of return periods for 2 and 10 years illustrated a 37% increase in flood hazard levels. Furthermore, there was an increased danger level for locations that were exposed to flood inundation. This occurred in housing, some roads, and rice fields. Ultimately, this study mitigates flood hazards through the determination of evacuation directions, urban spatial planning, and informed flood mitigation measures.
{"title":"Flood hazard mapping of the Welang river, Pasuruan, East Java, Indonesia","authors":"E. Hidayah, G. Halik, I. Indarto, D. W. Khaulan","doi":"10.1080/23249676.2022.2114025","DOIUrl":"https://doi.org/10.1080/23249676.2022.2114025","url":null,"abstract":"The availability of a flood hazard map is beneficial during flood risk reduction. However, there is a lack of high-resolution topographic data, which is a map realization obstacle. Therefore, this study aims to construct flood hazard maps based on hazard levels for various flood return periods. The 2D-hydrodynamic from the Hydrologic Engineering Center's River Analysis System (HEC-RAS) and Digital Surface Models (DSM) from Unmanned Aerial Vehicle (UAV) imagery were used for generating inundation maps. The results showed that simulation of return periods for 2 and 10 years illustrated a 37% increase in flood hazard levels. Furthermore, there was an increased danger level for locations that were exposed to flood inundation. This occurred in housing, some roads, and rice fields. Ultimately, this study mitigates flood hazards through the determination of evacuation directions, urban spatial planning, and informed flood mitigation measures.","PeriodicalId":51911,"journal":{"name":"Journal of Applied Water Engineering and Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44547773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-12DOI: 10.1080/23249676.2022.2110165
Amina, N. Tanaka
Finite-length vegetation has been previously studied for its ability to provide resistance against the tsunami by using just the trunk section of the tree stand structures. However, investigating the resilience of the vegetation while taking the crown section into account is yet unknown. Using a limited emergent vegetation model (EVM), this research examined the impact of changing the tree crown heights on the flow structure behavior between the vegetation and its surrounding gap region. Experimental variables included such as tree crown height ( in which is the crown height from the ground surface and is the total tree height), vegetation width to length ratio (W/L), and the initial Froude number condition , which ranged between 0.67 and 0.76. The outcomes demonstrated that, when the vegetation width to length ratio was small, the crown height ratio ( < 0.3) significantly reduced the velocity and fluid force behind the vegetation patch region as compared to no crown (NC) and highest crown height ratio ( > 0.3). On the other hand, the effect of crown cases in the small vegetation patch did not increase the velocity and fluid force in the gap region in comparison with NC. Whereas the increased width of the vegetation patch along with the lower crown height ratio ( < 0.4) further decreased the velocity and fluid force behind the vegetation patch but the increased width of the vegetation patch in combination with the lower crown height ratio increased the velocity and fluid force in the surrounding gap region as compared to its NC case.
{"title":"Variation of tree crown height effects on flow behavior around finite vegetation","authors":"Amina, N. Tanaka","doi":"10.1080/23249676.2022.2110165","DOIUrl":"https://doi.org/10.1080/23249676.2022.2110165","url":null,"abstract":"Finite-length vegetation has been previously studied for its ability to provide resistance against the tsunami by using just the trunk section of the tree stand structures. However, investigating the resilience of the vegetation while taking the crown section into account is yet unknown. Using a limited emergent vegetation model (EVM), this research examined the impact of changing the tree crown heights on the flow structure behavior between the vegetation and its surrounding gap region. Experimental variables included such as tree crown height ( in which is the crown height from the ground surface and is the total tree height), vegetation width to length ratio (W/L), and the initial Froude number condition , which ranged between 0.67 and 0.76. The outcomes demonstrated that, when the vegetation width to length ratio was small, the crown height ratio ( < 0.3) significantly reduced the velocity and fluid force behind the vegetation patch region as compared to no crown (NC) and highest crown height ratio ( > 0.3). On the other hand, the effect of crown cases in the small vegetation patch did not increase the velocity and fluid force in the gap region in comparison with NC. Whereas the increased width of the vegetation patch along with the lower crown height ratio ( < 0.4) further decreased the velocity and fluid force behind the vegetation patch but the increased width of the vegetation patch in combination with the lower crown height ratio increased the velocity and fluid force in the surrounding gap region as compared to its NC case.","PeriodicalId":51911,"journal":{"name":"Journal of Applied Water Engineering and Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48816936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-11DOI: 10.1080/23249676.2022.2110529
Cherdvong Saengsupavanich, E. Pranzini
When a revetment is selected to protect an eroding coastline, a proper implementation procedure is required to ensure that the revetment is successful. During the last 5 years (2016–2020), Thailand has armored 45.7 km of its shoreline with revetments. Its experience and the lessons learnt from past consecutive revetment implementations have shaped a procedure to integrate engineering, social, and environmental aspects into the whole process. The nine stages involved in Thailand’s revetment implementation are elaborated by using the Laem Ngoo beach revetment as an example. Although Thailand’s 2021 revetment implementation procedure may not be the best approach in different physical and social environment, it may be useful for coastal practitioners to learn from and follow if they find such an approach to be sustainable.
{"title":"The 2021-procedure for coastal protection by revetments in Thailand","authors":"Cherdvong Saengsupavanich, E. Pranzini","doi":"10.1080/23249676.2022.2110529","DOIUrl":"https://doi.org/10.1080/23249676.2022.2110529","url":null,"abstract":"When a revetment is selected to protect an eroding coastline, a proper implementation procedure is required to ensure that the revetment is successful. During the last 5 years (2016–2020), Thailand has armored 45.7 km of its shoreline with revetments. Its experience and the lessons learnt from past consecutive revetment implementations have shaped a procedure to integrate engineering, social, and environmental aspects into the whole process. The nine stages involved in Thailand’s revetment implementation are elaborated by using the Laem Ngoo beach revetment as an example. Although Thailand’s 2021 revetment implementation procedure may not be the best approach in different physical and social environment, it may be useful for coastal practitioners to learn from and follow if they find such an approach to be sustainable.","PeriodicalId":51911,"journal":{"name":"Journal of Applied Water Engineering and Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43872814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-08-04DOI: 10.1080/23249676.2022.2106520
R. Ettema, C. Thornton
Presented here are considerations for designing a hydraulic model involving a broad reach of braided, sand-bed channel used to aid the design of a grade-building structure (GBS) for retaining bed sediment upstream of a sediment-deposition plain formed by a sediment-retention dam. The results focus on the similitude and calibration considerations needed to simulate bed-sediment transport along a large braided channel. Key variables in this regard were flow discharge, channel slope and sediment-transport rate. Additionally, the results describe how the GBS evolved in design from initially comprising four walls that lengthened flow path (thereby causing sediment deposition) to being four walls with openings that dispersed flow and consequently spread sediment deposition across the reach. The addition of rock aprons and wall bunds (curved, wall ends), enhanced sediment retention, reduced scour, and mitigated an under-wall seepage concern. In final design, the GBS retained approximately 83% of the bed sediment entering the reach over the test duration.
{"title":"Hydraulic model of a braided channel to aid design of a grade-building structure","authors":"R. Ettema, C. Thornton","doi":"10.1080/23249676.2022.2106520","DOIUrl":"https://doi.org/10.1080/23249676.2022.2106520","url":null,"abstract":"Presented here are considerations for designing a hydraulic model involving a broad reach of braided, sand-bed channel used to aid the design of a grade-building structure (GBS) for retaining bed sediment upstream of a sediment-deposition plain formed by a sediment-retention dam. The results focus on the similitude and calibration considerations needed to simulate bed-sediment transport along a large braided channel. Key variables in this regard were flow discharge, channel slope and sediment-transport rate. Additionally, the results describe how the GBS evolved in design from initially comprising four walls that lengthened flow path (thereby causing sediment deposition) to being four walls with openings that dispersed flow and consequently spread sediment deposition across the reach. The addition of rock aprons and wall bunds (curved, wall ends), enhanced sediment retention, reduced scour, and mitigated an under-wall seepage concern. In final design, the GBS retained approximately 83% of the bed sediment entering the reach over the test duration.","PeriodicalId":51911,"journal":{"name":"Journal of Applied Water Engineering and Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43063667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-25DOI: 10.1080/23249676.2022.2099470
Kapil Rohilla, Sanjay Kumar, Shylendra Kumar
A numerical model was used to analyze the effect of sediment transport and flow depth on soil moisture profiles from a simulation of the hypothetical irrigation furrows. The Saint Venant and sediment continuity equations were solved by using MacCormack scheme based on finite difference method to analyze the overland flow and sediment transport, and Richards equation was used to analyze the subsurface flow, which was solved by using a mass conservative fully implicit finite difference method. Flow depth significantly affected the moisture profiles in irrigation channels while the effect of sediment-laden water on the moisture profiles was observed insignificant. The model was used to study the effect of infiltration on moisture profiles and soil water retention curve (SWRCs) in irrigation furrows. It was observed that infiltration significantly affected and altered the moisture profiles and soil water retention curve (SWRC). Among the different soil parameters (av and nv ) and saturated hydraulic conductivity ( ) significantly affected the moisture profiles, while and influenced the soil water retention curve (SWRC) as compared to other retention parameters.
{"title":"Effect of sediment transport, flow depth and infiltration on soil moisture profiles in irrigation furrows","authors":"Kapil Rohilla, Sanjay Kumar, Shylendra Kumar","doi":"10.1080/23249676.2022.2099470","DOIUrl":"https://doi.org/10.1080/23249676.2022.2099470","url":null,"abstract":"A numerical model was used to analyze the effect of sediment transport and flow depth on soil moisture profiles from a simulation of the hypothetical irrigation furrows. The Saint Venant and sediment continuity equations were solved by using MacCormack scheme based on finite difference method to analyze the overland flow and sediment transport, and Richards equation was used to analyze the subsurface flow, which was solved by using a mass conservative fully implicit finite difference method. Flow depth significantly affected the moisture profiles in irrigation channels while the effect of sediment-laden water on the moisture profiles was observed insignificant. The model was used to study the effect of infiltration on moisture profiles and soil water retention curve (SWRCs) in irrigation furrows. It was observed that infiltration significantly affected and altered the moisture profiles and soil water retention curve (SWRC). Among the different soil parameters (av and nv ) and saturated hydraulic conductivity ( ) significantly affected the moisture profiles, while and influenced the soil water retention curve (SWRC) as compared to other retention parameters.","PeriodicalId":51911,"journal":{"name":"Journal of Applied Water Engineering and Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47965027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-21DOI: 10.1080/23249676.2022.2093794
Daniel Eutyche Mbadjoun Wapet, Salomé Ndjakomo Essiane, R. Wamkeue, D. Bisso, Patrick Juvet Gnetchejo, M. Bajaj
This article describes the evaluation performance of two constraint processing treatments (TCPT) techniques: the advantages of feasible (SF) and adaptive penalty (SP) solutions in combination with differential evolution (DE). Our approach is tested on Dez reservoir data related to water supply and hydropower operation to evaluate the accuracy of our approach. The results of the simulations on water supply and hydroelectric exploitation with spillway parameters forecast better prospects for the water resources of Ntem water flow. Indeed, to demonstrate the robustness of our approach, we did a simulation of the test functions to assess their potential. Then, we did a comparative analysis of our approach with other algorithms combined with the constraint treatment method. The quality of the results obtained by TCPTDE is much better in determining optimal solutions than the genetic algorithms, the swarm of particles, the colony of bees and the Drone Squadron Optimization (DSO) hybridized with TCPT.
{"title":"Optimal policy of hydroelectric reservoir integrated spill flow","authors":"Daniel Eutyche Mbadjoun Wapet, Salomé Ndjakomo Essiane, R. Wamkeue, D. Bisso, Patrick Juvet Gnetchejo, M. Bajaj","doi":"10.1080/23249676.2022.2093794","DOIUrl":"https://doi.org/10.1080/23249676.2022.2093794","url":null,"abstract":"This article describes the evaluation performance of two constraint processing treatments (TCPT) techniques: the advantages of feasible (SF) and adaptive penalty (SP) solutions in combination with differential evolution (DE). Our approach is tested on Dez reservoir data related to water supply and hydropower operation to evaluate the accuracy of our approach. The results of the simulations on water supply and hydroelectric exploitation with spillway parameters forecast better prospects for the water resources of Ntem water flow. Indeed, to demonstrate the robustness of our approach, we did a simulation of the test functions to assess their potential. Then, we did a comparative analysis of our approach with other algorithms combined with the constraint treatment method. The quality of the results obtained by TCPTDE is much better in determining optimal solutions than the genetic algorithms, the swarm of particles, the colony of bees and the Drone Squadron Optimization (DSO) hybridized with TCPT.","PeriodicalId":51911,"journal":{"name":"Journal of Applied Water Engineering and Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45867260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-18DOI: 10.1080/23249676.2022.2099471
Tripti Dimri, Shamshad Ahmad, M. Sharif
River basins around the world are better understood through hydrological models. However, the development and application of hydrological models, particularly under the influence of climate change, is a daunting task. The present research describes the simulation of streamflows in the Bhagirathi River basin using HEC-HMS hydrological model. This subbasin is a part of the Ganga basin and is situated in the Himalayan state of Uttarakhand, India. The Tehri dam reservoir is a seasonally regulated reservoir, and changes in the hydrological regime of the river basin would necessitate changes in its operational strategies. The HEC-HMS model is simulated for single and three-year time windows from 2010 to 2015, including calibration and validation of the model. Results of the simulation indicated a close agreement between the observed and simulated data. The efficiency of the HEC-HMS model in simulating the streamflows at the outlet of Tehri has clearly been demonstrated in this research.
{"title":"Hydrological modelling of Bhagirathi River basin using HEC-HMS","authors":"Tripti Dimri, Shamshad Ahmad, M. Sharif","doi":"10.1080/23249676.2022.2099471","DOIUrl":"https://doi.org/10.1080/23249676.2022.2099471","url":null,"abstract":"River basins around the world are better understood through hydrological models. However, the development and application of hydrological models, particularly under the influence of climate change, is a daunting task. The present research describes the simulation of streamflows in the Bhagirathi River basin using HEC-HMS hydrological model. This subbasin is a part of the Ganga basin and is situated in the Himalayan state of Uttarakhand, India. The Tehri dam reservoir is a seasonally regulated reservoir, and changes in the hydrological regime of the river basin would necessitate changes in its operational strategies. The HEC-HMS model is simulated for single and three-year time windows from 2010 to 2015, including calibration and validation of the model. Results of the simulation indicated a close agreement between the observed and simulated data. The efficiency of the HEC-HMS model in simulating the streamflows at the outlet of Tehri has clearly been demonstrated in this research.","PeriodicalId":51911,"journal":{"name":"Journal of Applied Water Engineering and Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47738138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-07-10DOI: 10.1080/23249676.2022.2094482
G. D. Jojoa-Unigarro, S. González‐Martínez, O. González-Barceló
Treatment of leachate and municipal wastewater has extended worldwide using already existing wastewater treatment plants. A biological aerated filter was used to treat leachate from Mexico City's largest landfill together with synthetic wastewater. After achieving stable operation of the filter under organic surface area loading rates of 8.1, 5.3, and 3.1 gCOD/m2·d, landfill leachate was added to the wastewater in volume proportions of 1, 2, and 3%. With leachate, COD removal decreases with increasing leachate concentration. Without leachate, complete nitrification was achieved with the two lower organic surface area loading rates and 93% NH4-N removal was achieved with the highest load. NH4-N removal was 71 and 39% with 2 and 3% leachate, respectively. The oxygen uptake rates decrease with increasing leachate concentration. With 3% leachate, O2 uptake rates for endogenous respiration are higher than for substrate respiration.
{"title":"Mature landfill leachate treatment in a biological filter using scoria as media","authors":"G. D. Jojoa-Unigarro, S. González‐Martínez, O. González-Barceló","doi":"10.1080/23249676.2022.2094482","DOIUrl":"https://doi.org/10.1080/23249676.2022.2094482","url":null,"abstract":"Treatment of leachate and municipal wastewater has extended worldwide using already existing wastewater treatment plants. A biological aerated filter was used to treat leachate from Mexico City's largest landfill together with synthetic wastewater. After achieving stable operation of the filter under organic surface area loading rates of 8.1, 5.3, and 3.1 gCOD/m2·d, landfill leachate was added to the wastewater in volume proportions of 1, 2, and 3%. With leachate, COD removal decreases with increasing leachate concentration. Without leachate, complete nitrification was achieved with the two lower organic surface area loading rates and 93% NH4-N removal was achieved with the highest load. NH4-N removal was 71 and 39% with 2 and 3% leachate, respectively. The oxygen uptake rates decrease with increasing leachate concentration. With 3% leachate, O2 uptake rates for endogenous respiration are higher than for substrate respiration.","PeriodicalId":51911,"journal":{"name":"Journal of Applied Water Engineering and Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43594577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-06-30DOI: 10.1080/23249676.2022.2089246
A. Marquez, Estafania Freytez, J. Maldonado, E. Guevara, S. Pérez, Eduardo Buroz
This paper deals with a proposal for the remediation of soils and groundwater contaminated with hydrocarbons in a tropical aquifer, due to leaks from underground tanks in a gas station in Venezuela. The hydrocarbon measured values such as TPHs (Total Petroleum Hydrocarbons) and BTEX (Benzene, Toluene, Ethylbenzene, Xylenes) in soils and groundwater exceeded the international standards. The remediation proposal was designed using kinetic models from the modified Monod equation for two coupled bioreactors, used as a design variable for the Chemical Oxygen Demand (COD). For soil treatment, the sequence was formed by a Soil-Slurry Sequencing Batch Reactor (SS-SBR) and an Upflow Anaerobic Filter separately in three phases (UAF-3SS), operating for 80% and 99% of COD removal, respectively. For groundwater treatment, it was set that the SBR-UAF-3SS sequence performs a COD removal of 60% and 99%, respectively.
{"title":"Soil and groundwater remediation proposal for hydrocarbons in a tropical aquifer","authors":"A. Marquez, Estafania Freytez, J. Maldonado, E. Guevara, S. Pérez, Eduardo Buroz","doi":"10.1080/23249676.2022.2089246","DOIUrl":"https://doi.org/10.1080/23249676.2022.2089246","url":null,"abstract":"This paper deals with a proposal for the remediation of soils and groundwater contaminated with hydrocarbons in a tropical aquifer, due to leaks from underground tanks in a gas station in Venezuela. The hydrocarbon measured values such as TPHs (Total Petroleum Hydrocarbons) and BTEX (Benzene, Toluene, Ethylbenzene, Xylenes) in soils and groundwater exceeded the international standards. The remediation proposal was designed using kinetic models from the modified Monod equation for two coupled bioreactors, used as a design variable for the Chemical Oxygen Demand (COD). For soil treatment, the sequence was formed by a Soil-Slurry Sequencing Batch Reactor (SS-SBR) and an Upflow Anaerobic Filter separately in three phases (UAF-3SS), operating for 80% and 99% of COD removal, respectively. For groundwater treatment, it was set that the SBR-UAF-3SS sequence performs a COD removal of 60% and 99%, respectively.","PeriodicalId":51911,"journal":{"name":"Journal of Applied Water Engineering and Research","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49155038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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