Pub Date : 2024-07-01DOI: 10.12912/27197050/188715
Samsia Samsia, A. Achmad, S. Baja
This study aims to analyze the impact of land use change in East Sinjai Sub-district on the Kalamisu River Watershed and evelop water management strategies to balance availability with population needs. Utilizing GIS methods with ArcGIS 10.8 and Landsat satellite imagery, land use change in East Sinjai District was examined. Additionally, water infiltration capacity analysis considered factors such as rock type, rainfall, soil type, slope, and land use. Reference materials include the Technical Guidebook for Groundwater Management (DESDM Geological Agency, 2007) and the Regulation of the Minister of Forestry of the Republic of Indonesia No. P.32/MENHUTII/2009 on Procedures for the Preparation of RTkRHL-DAS. The study's outcomes will feed into a SWOT analysis to craft a management strategy for the area over the next decade. This research aims to contribute positively to the Sinjai Regency government and enhance scientific discourse on water governance and spatial management. Qualitative analysis was employed to elucidate the area's physical condition and analyze quantitative data and information pertinent to resource management processes and water management strategies. Primary data from satellite image interpretation and interviews supplemented by secondary data were utilized for problem identification and data analysis. The analysis indicates a substantial increase in land use in East Sinjai Sub-district from 2012 to 2017, notably in residential areas, with a rise of 136.6 hectares due to a population surge of 58,986 people. Water infiltration in the Kalamisu River watershed is critically low. Water availability in East Sinjai District has notably decreased by -4,658,505 cubic meters per year from 2012 to 2022. To enhance groundwater absorption capacity and availability, promoting the use of high water-absorbent plantation land is essential. Additionally, developing mangrove areas is crucial for improving water infiltration, particularly in quality and quantity, especially during dry seasons.
{"title":"Analysis of the Impact of Land Use Change on Water Management Balance East Sinjai Regency, Indonesia","authors":"Samsia Samsia, A. Achmad, S. Baja","doi":"10.12912/27197050/188715","DOIUrl":"https://doi.org/10.12912/27197050/188715","url":null,"abstract":"This study aims to analyze the impact of land use change in East Sinjai Sub-district on the Kalamisu River Watershed and evelop water management strategies to balance availability with population needs. Utilizing GIS methods with ArcGIS 10.8 and Landsat satellite imagery, land use change in East Sinjai District was examined. Additionally, water infiltration capacity analysis considered factors such as rock type, rainfall, soil type, slope, and land use. Reference materials include the Technical Guidebook for Groundwater Management (DESDM Geological Agency, 2007) and the Regulation of the Minister of Forestry of the Republic of Indonesia No. P.32/MENHUTII/2009 on Procedures for the Preparation of RTkRHL-DAS. The study's outcomes will feed into a SWOT analysis to craft a management strategy for the area over the next decade. This research aims to contribute positively to the Sinjai Regency government and enhance scientific discourse on water governance and spatial management. Qualitative analysis was employed to elucidate the area's physical condition and analyze quantitative data and information pertinent to resource management processes and water management strategies. Primary data from satellite image interpretation and interviews supplemented by secondary data were utilized for problem identification and data analysis. The analysis indicates a substantial increase in land use in East Sinjai Sub-district from 2012 to 2017, notably in residential areas, with a rise of 136.6 hectares due to a population surge of 58,986 people. Water infiltration in the Kalamisu River watershed is critically low. Water availability in East Sinjai District has notably decreased by -4,658,505 cubic meters per year from 2012 to 2022. To enhance groundwater absorption capacity and availability, promoting the use of high water-absorbent plantation land is essential. Additionally, developing mangrove areas is crucial for improving water infiltration, particularly in quality and quantity, especially during dry seasons.","PeriodicalId":448145,"journal":{"name":"Ecological Engineering & Environmental Technology","volume":"20 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141702362","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 : 2024-07-01DOI: 10.12912/27197050/188378
Djihad Rezagui, Driz Hafida, Cherif Lamia, Gherissi Radia
Filtration is one of the oldest techniques and by far the most widely applied in water treatment operations. It is considered one of the most effective methods for purifying waste water. Sand filtration consists of passing water loaded with suspended and colloidal matter through a filtering material in order to clarify it. In Ouargla region, wastewater is evacuated in a closed system without any treatment, which presents a natural risk to public health and endangers the sustainability of agriculture and the environment. In this modest study, two sand samples of different grain size and shape were used as the filter bed. Several filters were constructed using two types of sand with the same dimensions and different characteristics. The filter was exposed to clogging during the operation, which is prejudicial to the filtration process. For this reason, our study aims to see the influence of the type of sand on this process and analyze the phenomenon of filter clogging: the causes of its appearance, its types and their loca - tion as well as the parameters governing it. The most important thing is to evaluate the quantity of organic matter deposited in the different layers of the filter, and see its distribution as a function of time over the whole the depth of the filters. This study shows that the sand filter is subjected to progressive clogging. This clogging is classified into three fragments: mechanical, physical and organic. The study showed that the finer the granulometry, the greater the accumulation of organic matter. From the third week onwards, the formation of a biological film has been observed, which allows for very thorough purification. In other words, a quantity of suspended matter settles as the biomass degrades the organic matter.
{"title":"Comparative Study of Two Types of Sand Used for Wastewater Treatment (Case of Algerian Sahara)","authors":"Djihad Rezagui, Driz Hafida, Cherif Lamia, Gherissi Radia","doi":"10.12912/27197050/188378","DOIUrl":"https://doi.org/10.12912/27197050/188378","url":null,"abstract":"Filtration is one of the oldest techniques and by far the most widely applied in water treatment operations. It is considered one of the most effective methods for purifying waste water. Sand filtration consists of passing water loaded with suspended and colloidal matter through a filtering material in order to clarify it. In Ouargla region, wastewater is evacuated in a closed system without any treatment, which presents a natural risk to public health and endangers the sustainability of agriculture and the environment. In this modest study, two sand samples of different grain size and shape were used as the filter bed. Several filters were constructed using two types of sand with the same dimensions and different characteristics. The filter was exposed to clogging during the operation, which is prejudicial to the filtration process. For this reason, our study aims to see the influence of the type of sand on this process and analyze the phenomenon of filter clogging: the causes of its appearance, its types and their loca - tion as well as the parameters governing it. The most important thing is to evaluate the quantity of organic matter deposited in the different layers of the filter, and see its distribution as a function of time over the whole the depth of the filters. This study shows that the sand filter is subjected to progressive clogging. This clogging is classified into three fragments: mechanical, physical and organic. The study showed that the finer the granulometry, the greater the accumulation of organic matter. From the third week onwards, the formation of a biological film has been observed, which allows for very thorough purification. In other words, a quantity of suspended matter settles as the biomass degrades the organic matter.","PeriodicalId":448145,"journal":{"name":"Ecological Engineering & Environmental Technology","volume":"24 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141699363","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 : 2024-07-01DOI: 10.12912/27197050/187922
F. Chajri, M. Bensemlali, B. Hatimi, Asmae Sanad, M. Joudi, A. Aarfane, Mustapha Siniti, Mina Bakasse, Abdoullatif Baraket, H. Nasrellah
A novel method has been explored based on the recovery of two industrial wastes V 2 O 5 and phosphogypsum from the fertilizer production industry, which also provide a significant challenge due to their toxicity and environmen - tal impact. To solve the problem of these two harmful wastes, these residues have been transformed into valuable resources, by the elaboration of Nanoparticles vanadate-hydroxyapatite (NPs-HAP/VAP) adsorbent, contributing a sustainable solution without requiring expensive or highly skilled work. This comprehensive investigation ex - plores the adsorption of the reactive red 141 dye (RR 141) on Ca 10 (VO 4 ) x (PO 4 ) 6−x (OH) 2 , with (x i = 0, 1.5, 3, 4.5, and 6). Using a Centered composite design (CCD), several parameters influencing the adsorption process were examined. The optimal adsorption capacity is 50 mg. g – 1 under optimal conditions 57.5 mg of the adsorbent dose, 152.5 mgL -1 for the RR 141, pH 8, 92.5 minutes of contact time, and incorporation ratio of 4.5 with an R 2 of 0.99. These results reinforce the effectiveness of our chosen CCD model. Kinetic analysis demonstrated a pseudo-order reaction model with an R 2 ˃ 0.92, while the Sips isotherm describes the adsorption process. Thermodynamic studies revealed spontaneous adsorption, suggesting a physical character enhanced by a positive entropy variation.
化肥生产过程中产生的 V 2 O 5 和磷石膏这两种工业废料，由于其毒性和对环境的影响，也是一项重大挑战。为了解决这两种有害废物的问题，我们通过制备纳米颗粒钒酸盐-羟基磷灰石（NPs-HAP/VAP）吸附剂，将这些残留物转化为有价值的资源，从而提供了一种可持续的解决方案，而且不需要昂贵的或高技能的工作。这项综合研究探讨了活性红 141 染料（RR 141）在 Ca 10 (VO 4 ) x (PO 4 ) 6-x (OH) 2（x i = 0、1.5、3、4.5 和 6）上的吸附情况。通过中心复合设计（CCD），研究了影响吸附过程的几个参数。在吸附剂剂量为 57.5 毫克、RR 141 为 152.5 毫克/升-1、pH 值为 8、接触时间为 92.5 分钟、吸附比为 4.5、R 2 为 0.99 的最佳条件下，最佳吸附容量为 50 毫克/克-1。这些结果加强了我们所选 CCD 模型的有效性。动力学分析表明了 R 2 ˃ 0.92 的伪阶反应模型，而 Sips 等温线则描述了吸附过程。热力学研究揭示了自发吸附，这表明正熵变增强了吸附的物理特性。
{"title":"Study on Wastewater Treatment in the Textile Industry by Adsorption of Reactive Red 141 Dye Using a Phosphogypsum/Vanadium Composite Developed from Phosphate Industry Waste","authors":"F. Chajri, M. Bensemlali, B. Hatimi, Asmae Sanad, M. Joudi, A. Aarfane, Mustapha Siniti, Mina Bakasse, Abdoullatif Baraket, H. Nasrellah","doi":"10.12912/27197050/187922","DOIUrl":"https://doi.org/10.12912/27197050/187922","url":null,"abstract":"A novel method has been explored based on the recovery of two industrial wastes V 2 O 5 and phosphogypsum from the fertilizer production industry, which also provide a significant challenge due to their toxicity and environmen - tal impact. To solve the problem of these two harmful wastes, these residues have been transformed into valuable resources, by the elaboration of Nanoparticles vanadate-hydroxyapatite (NPs-HAP/VAP) adsorbent, contributing a sustainable solution without requiring expensive or highly skilled work. This comprehensive investigation ex - plores the adsorption of the reactive red 141 dye (RR 141) on Ca 10 (VO 4 ) x (PO 4 ) 6−x (OH) 2 , with (x i = 0, 1.5, 3, 4.5, and 6). Using a Centered composite design (CCD), several parameters influencing the adsorption process were examined. The optimal adsorption capacity is 50 mg. g – 1 under optimal conditions 57.5 mg of the adsorbent dose, 152.5 mgL -1 for the RR 141, pH 8, 92.5 minutes of contact time, and incorporation ratio of 4.5 with an R 2 of 0.99. These results reinforce the effectiveness of our chosen CCD model. Kinetic analysis demonstrated a pseudo-order reaction model with an R 2 ˃ 0.92, while the Sips isotherm describes the adsorption process. Thermodynamic studies revealed spontaneous adsorption, suggesting a physical character enhanced by a positive entropy variation.","PeriodicalId":448145,"journal":{"name":"Ecological Engineering & Environmental Technology","volume":"12 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141700625","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 : 2024-07-01DOI: 10.12912/27197050/188601
V. Popovych, T. Skyba, Volodymyr Koval, P. Bosak, Yu. О. Kopystynskyi
The most acceptable way to prevent and eliminate negative phenomena arising from devastating landscapes is phytomelioration. To assess the suitability of the landfill’s surface for phytomelioration measures, it is necessary to determine the species composition, physiological stability, density, and completeness of the tree stand (in case of the tree species development) already developing as a result of natural overgrowth. The present work examines the ecological succession of three large urban landfills within the Western Forest Steppe of Ukraine – Lviv, Ternopil, and Lutsk. It was established that the maximum phytomass is characteristic of the gentle slopes of landfills with relatively stable moisture index, and developed soil, which gives reason to attribute the plant groups to the endoecogenesis stage while there are no garbage dumping processes. Three stages of overgrowth were identified for all landfills – syngenetic succession, initial endoecogenetic succession, and mature endoeco - genetic succession. The taxonomic structure of the flora of the urban landfills of the Western Forest Steppe is represented by the divisions Magnoliophyta, Pinophyta, Polypodiophyta, Bryophyta, and the classes Magnoli-opsida, Liliopsida, Pinopsida, Equisetopsida, Polytrichopsida . The phytomeliorative efficiency of vegetation at solid waste landfills shows that the surface of landfills in the Western Forest Steppe is dominated by stunted plants and the phytomelioration coefficient is low. Thus, the surface of the landfill is suitable for phytomeliora - tion and reclamation works and landfill decommissioning. The phytomeliorative efficiency of vegetation at solid waste landfills shows that the surface of landfills in the Western Forest Steppe is dominated by stunted plants and the phytomelioration coefficient is low. Thus, the surface of the landfill is suitable for phytomelioration and reclamation works and landfill decommissioning
{"title":"Ecological Successions of Urban Landfills of the Western Forest Steppe of Ukraine","authors":"V. Popovych, T. Skyba, Volodymyr Koval, P. Bosak, Yu. О. Kopystynskyi","doi":"10.12912/27197050/188601","DOIUrl":"https://doi.org/10.12912/27197050/188601","url":null,"abstract":"The most acceptable way to prevent and eliminate negative phenomena arising from devastating landscapes is phytomelioration. To assess the suitability of the landfill’s surface for phytomelioration measures, it is necessary to determine the species composition, physiological stability, density, and completeness of the tree stand (in case of the tree species development) already developing as a result of natural overgrowth. The present work examines the ecological succession of three large urban landfills within the Western Forest Steppe of Ukraine – Lviv, Ternopil, and Lutsk. It was established that the maximum phytomass is characteristic of the gentle slopes of landfills with relatively stable moisture index, and developed soil, which gives reason to attribute the plant groups to the endoecogenesis stage while there are no garbage dumping processes. Three stages of overgrowth were identified for all landfills – syngenetic succession, initial endoecogenetic succession, and mature endoeco - genetic succession. The taxonomic structure of the flora of the urban landfills of the Western Forest Steppe is represented by the divisions Magnoliophyta, Pinophyta, Polypodiophyta, Bryophyta, and the classes Magnoli-opsida, Liliopsida, Pinopsida, Equisetopsida, Polytrichopsida . The phytomeliorative efficiency of vegetation at solid waste landfills shows that the surface of landfills in the Western Forest Steppe is dominated by stunted plants and the phytomelioration coefficient is low. Thus, the surface of the landfill is suitable for phytomeliora - tion and reclamation works and landfill decommissioning. The phytomeliorative efficiency of vegetation at solid waste landfills shows that the surface of landfills in the Western Forest Steppe is dominated by stunted plants and the phytomelioration coefficient is low. Thus, the surface of the landfill is suitable for phytomelioration and reclamation works and landfill decommissioning","PeriodicalId":448145,"journal":{"name":"Ecological Engineering & Environmental Technology","volume":"10 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141694447","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 : 2024-07-01DOI: 10.12912/27197050/188192
Anwar Qasim Saeed, Hebatallah Mohammed Khudhair, Ali Saud Hadi Alhamdani, Shahad L. Abbas, M. Abdulhasan
As heavy metals are commonly found in water bodies today, the need for an efficient method to remove these pollutants simultaneously has become increasingly important. This research involved coating sand with Fe/Ni nanoparticles created through an environmentally friendly method using eucalyptus leaf extract. Green synthesis of Fe/Ni coated sand was characterized using Fourier transform-infrared spectrometry (FT-IR) analysis. The resulting Fe/Ni nanocomposite coated sand was then used to copper (Cu(II)) removal from water in batch experiments. The study examined five factors namely pH of solution, Cu(II) concentration, contact time, Fe/Ni coated sand dosage, and agitation speed that affected on the Cu(II) removal efficiency. Optimal values of this factors were found to be 200 rpm, pH 6, 130 minutes, 50 mg/L for Cu(II), and 0.5 g/50 mL Fe/Ni coated sand. The findings revealed that over 80% of Cu(II) was removed until the fifth cycle. This work could open up new possibilities for treating water contaminated with copper ions using eco-friendly composites made from waste.
{"title":"Using Iron/Nickel Coated Sand Nanocomposites Prepared by Eucalyptus Leaf Extract for Copper Removal from Aqueous Solutions","authors":"Anwar Qasim Saeed, Hebatallah Mohammed Khudhair, Ali Saud Hadi Alhamdani, Shahad L. Abbas, M. Abdulhasan","doi":"10.12912/27197050/188192","DOIUrl":"https://doi.org/10.12912/27197050/188192","url":null,"abstract":"As heavy metals are commonly found in water bodies today, the need for an efficient method to remove these pollutants simultaneously has become increasingly important. This research involved coating sand with Fe/Ni nanoparticles created through an environmentally friendly method using eucalyptus leaf extract. Green synthesis of Fe/Ni coated sand was characterized using Fourier transform-infrared spectrometry (FT-IR) analysis. The resulting Fe/Ni nanocomposite coated sand was then used to copper (Cu(II)) removal from water in batch experiments. The study examined five factors namely pH of solution, Cu(II) concentration, contact time, Fe/Ni coated sand dosage, and agitation speed that affected on the Cu(II) removal efficiency. Optimal values of this factors were found to be 200 rpm, pH 6, 130 minutes, 50 mg/L for Cu(II), and 0.5 g/50 mL Fe/Ni coated sand. The findings revealed that over 80% of Cu(II) was removed until the fifth cycle. This work could open up new possibilities for treating water contaminated with copper ions using eco-friendly composites made from waste.","PeriodicalId":448145,"journal":{"name":"Ecological Engineering & Environmental Technology","volume":"91 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141708662","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 : 2024-07-01DOI: 10.12912/27197050/188804
V. Dryha, V. Doronin, V. Sinchenko, L. Karpuk, V. Polischuk, Iryna Mykolaiko, Oksana Topchyi
Partial replacement of traditional types of fuel, which in the world and in Ukraine is possible with the use of biomass of plant origin. A perennial cereal plant called switchgrass ( Panicum virgatum L.) is promising for the production of biofuel, the seeds of which are characterized by a high biological dormancy, which leads to a significant decrease in its germination. Therefore, it is urgent to conduct a study to reduce this state of dormancy, which will ensure an increase in seed germination and contribute to the widespread introduction of the culture into production. In order to find out the effect of conditions and storage time on seed quality, a three-factor experiment was conducted in which two varieties of switchgrass of different maturity groups were stored for 364 days un - der different conditions that are possible when sowing seeds in the field - variable temperatures and humidi - ty, the time of seed storage in such conditions. It has been found that the conditions of seed storage – temperature, humidity and terms, especially their complex interaction, probably affect the improvement of its quality. At a seed moisture content of 9% and 24–26% at an air temperature of 18–20 °С , during storage for 180 days, a probable increase in the energy of germination of the Cave-in-Rock variety sample by 11–20%, germination – by 13–21%, of the Dakota variety sample, respectively – by 22–19% and 24–31%.
{"title":"Influence of Rod-Shaped Millet (Panicum virgatum L.) Seeds Storage Conditions on its Quality","authors":"V. Dryha, V. Doronin, V. Sinchenko, L. Karpuk, V. Polischuk, Iryna Mykolaiko, Oksana Topchyi","doi":"10.12912/27197050/188804","DOIUrl":"https://doi.org/10.12912/27197050/188804","url":null,"abstract":"Partial replacement of traditional types of fuel, which in the world and in Ukraine is possible with the use of biomass of plant origin. A perennial cereal plant called switchgrass ( Panicum virgatum L.) is promising for the production of biofuel, the seeds of which are characterized by a high biological dormancy, which leads to a significant decrease in its germination. Therefore, it is urgent to conduct a study to reduce this state of dormancy, which will ensure an increase in seed germination and contribute to the widespread introduction of the culture into production. In order to find out the effect of conditions and storage time on seed quality, a three-factor experiment was conducted in which two varieties of switchgrass of different maturity groups were stored for 364 days un - der different conditions that are possible when sowing seeds in the field - variable temperatures and humidi - ty, the time of seed storage in such conditions. It has been found that the conditions of seed storage – temperature, humidity and terms, especially their complex interaction, probably affect the improvement of its quality. At a seed moisture content of 9% and 24–26% at an air temperature of 18–20 °С , during storage for 180 days, a probable increase in the energy of germination of the Cave-in-Rock variety sample by 11–20%, germination – by 13–21%, of the Dakota variety sample, respectively – by 22–19% and 24–31%.","PeriodicalId":448145,"journal":{"name":"Ecological Engineering & Environmental Technology","volume":"4 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141702984","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 : 2024-07-01DOI: 10.12912/27197050/187102
Sara Rhandouriate, Mohammed Saghir, Youssef Naimi, Mohamed Tahiri
Waste from poultry droppings in Had Soualem is valuable because it is rich in organic molecules that break down easily. One way to use this waste is by making methane from it. This helps reduce its volume and its impact on the environment. We are studying how mixing this waste with green waste can assess the effect of co-digestion with a green waste co-substrate in batch mode, under mesophilic conditions at 37 °C and using an infinitely mixed laboratory digester continuous stirred tank reactor (CSTR) with a capacity of 1.5 liters. During this process, the parameters pH, TOC, NTK, COD, alkalinity, and conductivity at the digester were monitored at the laboratory scale, and volatile fatty acids were modified to promote the bioconversion of biomass into methane. When everything works just right, the reactor stays stable, and it can make up to 70% methane, with only 1 to 1.5% hydrogen sulfide. This shows that combining poultry waste with green waste could be a good way to deal with these types of organic waste, turning them into something valuable and making the process more appealing.
{"title":"Assessment of Methane Production Features and Kinetics from Poultry Dropping Waste under Mesophilic Conditions","authors":"Sara Rhandouriate, Mohammed Saghir, Youssef Naimi, Mohamed Tahiri","doi":"10.12912/27197050/187102","DOIUrl":"https://doi.org/10.12912/27197050/187102","url":null,"abstract":"Waste from poultry droppings in Had Soualem is valuable because it is rich in organic molecules that break down easily. One way to use this waste is by making methane from it. This helps reduce its volume and its impact on the environment. We are studying how mixing this waste with green waste can assess the effect of co-digestion with a green waste co-substrate in batch mode, under mesophilic conditions at 37 °C and using an infinitely mixed laboratory digester continuous stirred tank reactor (CSTR) with a capacity of 1.5 liters. During this process, the parameters pH, TOC, NTK, COD, alkalinity, and conductivity at the digester were monitored at the laboratory scale, and volatile fatty acids were modified to promote the bioconversion of biomass into methane. When everything works just right, the reactor stays stable, and it can make up to 70% methane, with only 1 to 1.5% hydrogen sulfide. This shows that combining poultry waste with green waste could be a good way to deal with these types of organic waste, turning them into something valuable and making the process more appealing.","PeriodicalId":448145,"journal":{"name":"Ecological Engineering & Environmental Technology","volume":"353 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141691727","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 : 2024-07-01DOI: 10.12912/27197050/188008
P. N, R. C R
The present study in the Peenya Industrial Area in Bengaluru, India, carried out to assess the level of heavy metal contamination in the industrial area’s soil and groundwater. The study also discusses the potential health risks that inhabitants would suffer from consuming contaminated groundwater. In 116 bore well water samples collected before and throughout the monsoon season, heavy metals including cadmium, chromium, copper, zinc, arsenic, mercury, lead, nickel, and aluminium were examined. Heavy metals concentration (mg/kg) was analysed for 36 soil samples collected in the research area and for heavy metals like chromium, nickel, copper, zinc, arsenic and cadmium. In the current study, the heavy metal pollution index (HPI), hazard index (HQ (ing) ) and cancer risk factor (CR) were calculated to assess the potential health risk. The HPI value inside the Peenya industrial area exceeded the critical pollution index value of 100. The hazard index (HQ (ing) ) via oral ingestion was found to be > 1.00 in Cr, Hg and As during both seasons, indicating maximum health impacts in the inhabitants of the study area. Can - cer index values were > 10 -4 in Cr, Ni, Cd, and Pb in the research area, posing cancer risk in people of all ages, from children to adults. Environmental and human health are both put at risk in a polluted region. To assess soil contamination, the following indices were utilized: geoaccumulation (I geo ), single contamination index (PI), and pollution load index (PLI).
{"title":"Heavy Metal Analysis and Health Risk Assessment of Groundwater and Soil in and Around Peenya Industrial Area, Bengaluru","authors":"P. N, R. C R","doi":"10.12912/27197050/188008","DOIUrl":"https://doi.org/10.12912/27197050/188008","url":null,"abstract":"The present study in the Peenya Industrial Area in Bengaluru, India, carried out to assess the level of heavy metal contamination in the industrial area’s soil and groundwater. The study also discusses the potential health risks that inhabitants would suffer from consuming contaminated groundwater. In 116 bore well water samples collected before and throughout the monsoon season, heavy metals including cadmium, chromium, copper, zinc, arsenic, mercury, lead, nickel, and aluminium were examined. Heavy metals concentration (mg/kg) was analysed for 36 soil samples collected in the research area and for heavy metals like chromium, nickel, copper, zinc, arsenic and cadmium. In the current study, the heavy metal pollution index (HPI), hazard index (HQ (ing) ) and cancer risk factor (CR) were calculated to assess the potential health risk. The HPI value inside the Peenya industrial area exceeded the critical pollution index value of 100. The hazard index (HQ (ing) ) via oral ingestion was found to be > 1.00 in Cr, Hg and As during both seasons, indicating maximum health impacts in the inhabitants of the study area. Can - cer index values were > 10 -4 in Cr, Ni, Cd, and Pb in the research area, posing cancer risk in people of all ages, from children to adults. Environmental and human health are both put at risk in a polluted region. To assess soil contamination, the following indices were utilized: geoaccumulation (I geo ), single contamination index (PI), and pollution load index (PLI).","PeriodicalId":448145,"journal":{"name":"Ecological Engineering & Environmental Technology","volume":"3 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141693882","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 : 2024-07-01DOI: 10.12912/27197050/188380
Ilham L'Arfouni, A. Algouti, Abdellah Algouti, Rachid Es-Sadiq
The Ourika sub-watershed is composed of about twenty different watersheds with diverse lithology, slope, and structural organization. In order to better characterize the basin, we inventoried and extensively assessed the different types of thresholds implemented in each micro-watershed. The present study focused on the area located between Meltsen and Sidi Ali Oufarés faults, which includes several micro-watersheds that have been modified by the installation of structures. We selected 12 micro-watersheds from the main tributaries draining this zone, based on the level of risk: four micro-watersheds on the right bank from upstream to downstream (Wigrane and Walighane, Tachmacht, and Touggalkhir), and eight micro-watersheds on the left bank from upstream to down-stream (Imintaddarte, Oussane, Tikhfert, Tighazrit, Igri Foudene, Asni, Taljarft, and Tarzaza). The results of our study allowed us to detect and inventory 545 erosion protection structures made of masonry, gabions, and dry stone. However, the majority of these structures were damaged in several micro-watersheds due to steep slopes, torrential rainfall, and especially the solid sediment load resulting from the erosion of easily erodible old alluvial cones. This study serves as a warning to various stakeholders and decision-makers to ensure proper management in this mountainous system. The distribution of these thresholds is as follows: 62 masonry thresholds, accounting for 13.37%; 247 gabion thresholds, accounting for 45.32%; and 236 dry stone thresholds, accounting for 43.30%. The assessment of these structures revealed anomalies such as the loss of 17.43% of embankment structures and the destruction of certain thresholds.
{"title":"Assessment of Torrential Correction Thresholds on Ourika Sub-Watershed of the Tensift Watershed (High Atlas of Marrakech, Morocco)","authors":"Ilham L'Arfouni, A. Algouti, Abdellah Algouti, Rachid Es-Sadiq","doi":"10.12912/27197050/188380","DOIUrl":"https://doi.org/10.12912/27197050/188380","url":null,"abstract":"The Ourika sub-watershed is composed of about twenty different watersheds with diverse lithology, slope, and structural organization. In order to better characterize the basin, we inventoried and extensively assessed the different types of thresholds implemented in each micro-watershed. The present study focused on the area located between Meltsen and Sidi Ali Oufarés faults, which includes several micro-watersheds that have been modified by the installation of structures. We selected 12 micro-watersheds from the main tributaries draining this zone, based on the level of risk: four micro-watersheds on the right bank from upstream to downstream (Wigrane and Walighane, Tachmacht, and Touggalkhir), and eight micro-watersheds on the left bank from upstream to down-stream (Imintaddarte, Oussane, Tikhfert, Tighazrit, Igri Foudene, Asni, Taljarft, and Tarzaza). The results of our study allowed us to detect and inventory 545 erosion protection structures made of masonry, gabions, and dry stone. However, the majority of these structures were damaged in several micro-watersheds due to steep slopes, torrential rainfall, and especially the solid sediment load resulting from the erosion of easily erodible old alluvial cones. This study serves as a warning to various stakeholders and decision-makers to ensure proper management in this mountainous system. The distribution of these thresholds is as follows: 62 masonry thresholds, accounting for 13.37%; 247 gabion thresholds, accounting for 45.32%; and 236 dry stone thresholds, accounting for 43.30%. The assessment of these structures revealed anomalies such as the loss of 17.43% of embankment structures and the destruction of certain thresholds.","PeriodicalId":448145,"journal":{"name":"Ecological Engineering & Environmental Technology","volume":"17 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141698022","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 : 2024-07-01DOI: 10.12912/27197050/188281
N. Thuan, Lam Tran Vu, Nhu Nguyen Thi Huynh
The research investigated changes in surface water quality (SWQ) in the canals and rivers of Can Tho province in the Mekong Delta in southern Vietnam. Surface water was sampled at 34 points through months of the end of the rainy and flood season (October 2023), the beginning of the dried season (December 2023), and the middle of the dried season (February 2024). The SWQ parameters were compared with limited values of the national technical standard on SWQ and the Vietnamese water quality index. We used principal component analysis (PCA) to find sources causing surface water pollution and cluster analysis (CA) to identify the similarities in SWQ parameters among sampling points. The research showed that Can Tho’s average SWQ value ranged at a good level. The SWQ in the dry season is worse than in the rainy season. Pollution from suspended solids, organic matter, nutrients, and coliform was found in Can Tho’s surface water. The PCA resulted in the three key sources of PCs 1, 2, and 3 being elucidated by 65.3% of SWQ changes. Twelve current monitoring parameters, including temperature, pH, dissolved oxygen, total suspended solids, total organic carbon, biological oxygen demand, chemical oxygen demand, ammonium, nitrite, nitrate, phosphate, and coliform, are influencing SWQ. It is suggested from the CA results that the 34 monitoring points could decrease to 30 points in the case of financial issues. The results are beneficial in reviewing the sampling points and monitoring parameters for SWQ in Can Tho.
{"title":"Study of Fluctuation in Surface Water Quality in Can Tho Province (Mekong Delta, Vietnam)","authors":"N. Thuan, Lam Tran Vu, Nhu Nguyen Thi Huynh","doi":"10.12912/27197050/188281","DOIUrl":"https://doi.org/10.12912/27197050/188281","url":null,"abstract":"The research investigated changes in surface water quality (SWQ) in the canals and rivers of Can Tho province in the Mekong Delta in southern Vietnam. Surface water was sampled at 34 points through months of the end of the rainy and flood season (October 2023), the beginning of the dried season (December 2023), and the middle of the dried season (February 2024). The SWQ parameters were compared with limited values of the national technical standard on SWQ and the Vietnamese water quality index. We used principal component analysis (PCA) to find sources causing surface water pollution and cluster analysis (CA) to identify the similarities in SWQ parameters among sampling points. The research showed that Can Tho’s average SWQ value ranged at a good level. The SWQ in the dry season is worse than in the rainy season. Pollution from suspended solids, organic matter, nutrients, and coliform was found in Can Tho’s surface water. The PCA resulted in the three key sources of PCs 1, 2, and 3 being elucidated by 65.3% of SWQ changes. Twelve current monitoring parameters, including temperature, pH, dissolved oxygen, total suspended solids, total organic carbon, biological oxygen demand, chemical oxygen demand, ammonium, nitrite, nitrate, phosphate, and coliform, are influencing SWQ. It is suggested from the CA results that the 34 monitoring points could decrease to 30 points in the case of financial issues. The results are beneficial in reviewing the sampling points and monitoring parameters for SWQ in Can Tho.","PeriodicalId":448145,"journal":{"name":"Ecological Engineering & Environmental Technology","volume":"69 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141696147","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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