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Environmental Impact Analysis in 3x10 MW Coal Fired Power Plant Through Life Cycle Assessment 通过生命周期评估分析 3x10 兆瓦燃煤发电厂的环境影响
Pub Date : 2024-07-01 DOI: 10.12912/27197050/188873
Pramudita Triatmojo, Febrian Hadinata, Tuti Indah Sari
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引用次数: 0
Employing Phytoremediation Methods to Extract Heavy Metals from Polluted Soils 采用植物修复方法提取污染土壤中的重金属
Pub Date : 2024-06-01 DOI: 10.12912/27197050/187775
Wafaa Sahib Abbood Alawsy, Luma Abdalalah Sagban Alabadi, Dunya A. AL-jibury
The phytoremediation technique has become very efficient for treating soil contaminated with heavy metals. In this study, a pot experiment was conducted where the Dodonaea plant (known as hops) was grown, and soil previously contaminated with metals (Zn, Ni, Cd) was added at concentrations 100, 50, 0 mg·kg -1 for Ni and Zn, and at concentrations of 0, 5, 10 mg·kg -1 for cadmium. Irrigation was done within the limits of the field capacity of the soil. Cadmium, nickel and zinc was estimated in the soil to find out the capacity of plants to the absorption of heavy and contaminated metals by using bioconcentration factors (BCFs), bioaccumulation coefficient (BAC) and transloca - tion factor (TF). Additionally, BCF values of both Ni and Zn were less than one i.e. Dodonaea hazing moderate bioaccumulation properties based on heavy metals. As for BCF values of Cd, they have by passed, i.e. Dodonaea has the ability to the absorption of cadmium sulfate in the root system. Regarding the bioaccumulation coefficient (BAC) values for Cd, Ni, and Zn, it was found that they were generally below one, indicating that Dodonaea exhibits moderate capabilities for bioaccumulating these heavy metals. Therefore, Dodonaea plant is useful in treating heavy metals. Highlighting a pioneering approach, this study introduces a novel method that significantly advances the understanding of phytoremediation’s role in reducing pollution caused by various industries working on the soil, specifically through the use of Dodonaea in the T3 treatment group, which showed remarkable efficacy on metal-contaminated soil.
植物修复技术在处理受重金属污染的土壤方面已变得非常有效。在这项研究中,我们进行了一项盆栽实验,种植了 Dodonaea 植物(被称为啤酒花),并在土壤中添加了先前受到金属(锌、镍、镉)污染的土壤,镍和锌的浓度分别为 100、50 和 0 mg-kg -1 ,镉的浓度分别为 0、5 和 10 mg-kg -1 。灌溉量不超过土壤的田间容量。利用生物富集系数(BCFs)、生物累积系数(BAC)和转化系数(TF)对土壤中的镉、镍和锌进行了估算,以了解植物吸收重金属和受污染金属的能力。此外,镍和锌的生物浓缩系数值均小于 1,即 Dodonaea hazing 对重金属具有适度的生物累积特性。至于镉的 BCF 值,它们都超过了 1,即 Dodonaea 具有在根系中吸收硫酸镉的能力。关于镉、镍和锌的生物累积系数(BAC)值,研究发现它们普遍低于 1,表明 Dodonaea 对这些重金属的生物累积能力适中。因此,Dodonaea 植物可用于处理重金属。这项研究采用了一种开创性的方法,引入了一种新颖的方法,极大地推动了人们对植物修复在减少各种工业对土壤造成的污染方面所起作用的认识,特别是通过在 T3 处理组中使用 Dodonaea,它对金属污染土壤显示出了显著的功效。
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引用次数: 0
Enhancing Toluene Adsorption on ZnCl2 One-Step Modified Corn Cob Activated Carbon 提高 ZnCl2 一步法改性玉米芯活性炭对甲苯的吸附能力
Pub Date : 2024-06-01 DOI: 10.12912/27197050/186669
Zahraa J. Alhusnawy, Kadhim F. Alsultani
Toluene, a hydrocarbon frequently found in water due to human activities and accidents like oil spills, can pose health risks, such as nervous system irritation and liver lesions. This study aimed to develop cost-effective adsorp - tion techniques using activated carbon from corn biomass to remove toluene from water. The activated carbon, synthesized with zinc chloride surface modification and carbonization, was tested in a continuous fluidized bed column. The adsorbents effectively removed toluene, with optimal conditions identified as a bed height of 10 cm, a temperature of 30 °C, and a flow rate of contaminated water at 15 L/h. Operational parameters, like flow rates (15–25 l/h), bed heights (6–10 cm), and temperature (30–40 °C), were varied to assess their impact on toluene adsorption efficiency. Increasing flow rate and temperature reduced toluene removal, while higher bed height im - proved removal efficiency. However, column adsorption showed lower efficacy due to limited access of adsorbates to surface sites caused by low retention times within the column. On the basis of the breakthrough curve of 0.2 mm AC particles, the maximum adsorption capacity for toluene was 0.15643 mg/g with a total removal efficiency of 44.894%. The analysis, using various kinetic models like Thomas and Adams-Bohart, correlated strongly with the Thomas model (R 2 > 0.89), indicating Langmuir isotherm behavior and a second-order kinetic reaction. These findings demonstrate the potential of using the activated carbon from corn biomass in adsorption processes for removing toluene from contaminated water .
甲苯是一种碳氢化合物,因人类活动和石油泄漏等事故而经常出现在水中,会对健康造成危害,如刺激神经系统和肝脏病变。本研究旨在开发具有成本效益的吸附技术,利用玉米生物质活性炭去除水中的甲苯。通过氯化锌表面改性和碳化合成的活性炭在连续流化床柱中进行了测试。吸附剂可有效去除甲苯,最佳条件为床层高度为 10 厘米、温度为 30 °C、污染水流量为 15 升/小时。通过改变流速(15-25 升/小时)、床层高度(6-10 厘米)和温度(30-40 °C)等操作参数来评估它们对甲苯吸附效率的影响。提高流速和温度会降低甲苯的去除率,而提高床层高度则会提高去除率。然而,由于柱内停留时间较短,吸附剂进入表面位点的机会有限,因此柱吸附的效率较低。根据 0.2 毫米 AC 粒子的突破曲线,甲苯的最大吸附容量为 0.15643 毫克/克,总去除效率为 44.894%。使用托马斯和亚当斯-波哈特等各种动力学模型进行分析,结果与托马斯模型密切相关(R 2 > 0.89),表明存在朗缪尔等温线行为和二阶动力学反应。这些发现证明了在吸附过程中使用玉米生物质活性炭去除受污染水体中甲苯的潜力。
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引用次数: 0
Mapping Groundwater Potential Zones with GIS-RS-AHP Under Climate Change: Case of Mostaganem Plateau, Northwest Algeria 利用 GIS-RS-AHP 绘制气候变化下的地下水潜力区:阿尔及利亚西北部莫斯塔加内姆高原案例
Pub Date : 2024-06-01 DOI: 10.12912/27197050/186667
Cherifa Hanene Kamelia Chemirik, D. Baahmed, Rachid Nedjai, Djamel Boudjemline, Ikram Mahcer
In arid regions with increasing water needs due to growing populations and agriculture, heightened by climate change, groundwater arises as a crucial asset. This research evaluated climate change influence on groundwater potential zones (GPZs) during 2000 and 2014, within the Mostaganem plateau’s alluvial aquifer in Algeria, using a methodology that integrates analytical hierarchy process (AHP), remote sensing (RS) and geographic information system (GIS). Forecasts for 2030 and 2050 were conducted using the QGIS MOLUSCE plugin. Findings reveal a (30.29%) decrease in zones of moderate potential, the vanishing of high potential sectors, alongside a (7.53%) and a (22.1%) rise in fair potential and low potential, respectively, from 2000 to 2014. Between 2014 and 2030, fair and moderate potential decrease by 6.62% and 0.48%, while low potential zones see a 7.47% increase. These shifts are linked to changes in rainfall distribution, and land use land cover (LULC), notably intensive agriculture of herbaceous crops. Slight changes are anticipated between 2030 and 2050, possibly due to the onset of a resilience equilibrium from 2030 onwards. These findings are crucial as a preliminary investigation, highlighting the necessity of optimal groundwater management.
在干旱地区,由于人口和农业的增长,对水的需求日益增加,而气候变化又加剧了这一需求,因此地下水成为重要的资产。本研究采用分析层次过程(AHP)、遥感(RS)和地理信息系统(GIS)相结合的方法,评估了 2000 年和 2014 年期间气候变化对阿尔及利亚莫斯塔加内姆高原冲积含水层中地下水潜力区(GPZ)的影响。使用 QGIS MOLUSCE 插件对 2030 年和 2050 年进行了预测。研究结果表明,从 2000 年到 2014 年,中等潜力区减少了 30.29%,高潜力区消失了,而中等潜力区和低潜力区分别增加了 7.53%和 22.1%。从 2014 年到 2030 年,中等和一般潜力区分别减少了 6.62% 和 0.48%,而低潜力区则增加了 7.47%。这些变化与降雨分布和土地利用、土地覆盖(LULC)的变化有关,尤其是草本作物的集约化农业。预计在 2030 年至 2050 年期间会出现轻微变化,这可能是由于从 2030 年起开始出现恢复力平衡。作为一项初步调查,这些发现至关重要,凸显了优化地下水管理的必要性。
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引用次数: 0
Evaluating Groundwater Potability and Health Risks from Nitrates in the Semi-Arid Region of Algeria 评估阿尔及利亚半干旱地区地下水的可饮用性和硝酸盐对健康造成的风险
Pub Date : 2024-06-01 DOI: 10.12912/27197050/186954
Idir Menad Houari, B. Bouselsal, Alia Sara Lakhdari
In the semi-arid region of Ain Ouassera, Algeria, groundwater from the lower cretaceous aquifer (LC) serves as an essential resource for drinking and various other requirements. This study focuses on evaluating the suitability of water for domestic use and examining the non-carcinogenic health risks associated with consuming water containing high levels of nitrates. To explore these dimensions, the research utilizes the water quality index (WQI) method and the health risk assessment (HRA) model as formulated by the USEPA. The findings categorized the groundwater quality predominantly as “poor” for consumption purposes, with nitrate concentrations ranging from 14 to 112 mg/L, where 40% of the samples exceeded the World Health Organization’s (WHO) permissible limit (> 50 mg/L). Furthermore, the health risk analysis indicated that 76.67% of the samples for children and 70% for adults surpass the safety thresholds (QH > 1), signifying a significant risk to the local population. The study also uncovered that the hydrochemical characteristics of the groundwater reflect a mixed composition (CaMgCl) and that mineralization is mainly attributed to the dissolution of carbonates, sulfates, and halite, alongside inverse ion exchange processes and anthropogenic influences. These findings underscore the urgent need for improved groundwater management measures and risk mitigation strategies in the Ain Ouassera region.
在阿尔及利亚艾因瓦塞拉的半干旱地区,来自下白垩统含水层(LC)的地下水是人们饮用和满足其他各种需求的重要资源。本研究的重点是评估生活用水的适宜性,以及研究饮用硝酸盐含量高的水对健康造成的非致癌风险。为了探讨这些方面,研究采用了美国环保局制定的水质指数 (WQI) 方法和健康风险评估 (HRA) 模型。研究结果显示,地下水水质主要为 "差",硝酸盐浓度从 14 毫克/升到 112 毫克/升不等,其中 40% 的样本超过了世界卫生组织(WHO)规定的允许限度(> 50 毫克/升)。此外,健康风险分析表明,76.67% 的儿童样本和 70% 的成人样本超过了安全阈值(QH > 1),对当地居民构成了重大风险。研究还发现,地下水的水化学特征反映了一种混合成分(氯化钙镁),矿化主要归因于碳酸盐、硫酸盐和海绿石的溶解,以及反向离子交换过程和人为影响。这些发现突出表明,迫切需要改进艾因瓦塞拉地区的地下水管理措施和风险缓解战略。
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引用次数: 0
Assessing the Impact of Port Structure on Shoreline Evolution: Case Study of Tangier Med Port, Morocco 评估港口结构对海岸线演变的影响:摩洛哥丹吉尔地中海港口案例研究
Pub Date : 2024-06-01 DOI: 10.12912/27197050/186430
Anass Zayoun, Mohammed Yassine El Habti, Ahmed Raïssouni, Abdelkrim El Arrim
Coastal development can significantly impact nearby shorelines, raising concerns about erosion and sustainabil - ity. This study investigated the long-term effects of the Tangier Med port on the coastlines of Dalia and Ksar Sghir beaches in Morocco using remote sensing techniques and the digital shoreline analysis system (DSAS). A multi-decadal approach analyzed shoreline changes for pre-construction (1988–2005) and post-construction (2004–2022) periods. The obtained findings reveal contrasting patterns. Ksar Sghir displayed accretion, due to port infrastructure disrupting natural sediment transport. Dalia beach exhibited a mixed response with ongoing erosion and localized accretion, influenced by the construction of a fishing port on the eastern side of the beach. To gain further insights into the future trajectory of these shorelines, a Kalman filter model was employed to predict shoreline positions for the year 2034 and 2044. These predictions highlight the potential for continued divergence between the beaches. Dalia beach faces potential infrastructure damage on the western side due to ongoing erosion, while the eastern side may require increased dredging to maintain fishing port access. Ksar Sghir beach, on the other hand, is projected to experience continued accretion with minimal anticipated negative impacts. This research offers valuable insights into the differential impacts of port development on adjacent coastlines. It high - lights the importance of long-term monitoring and pre-construction data for understanding coastal interventions. Additionally, incorporating shoreline forecasting can aid in developing sustainable management strategies for both coastlines and port functionality.
海岸开发会对附近的海岸线产生重大影响,引起人们对侵蚀和可持续发展的关注。本研究利用遥感技术和数字海岸线分析系统(DSAS)调查了丹吉尔地中海港口对摩洛哥达利亚海滩和 Ksar Sghir 海滩海岸线的长期影响。采用多年代方法分析了施工前(1988-2005 年)和施工后(2004-2022 年)的海岸线变化。研究结果显示了截然不同的模式。由于港口基础设施破坏了自然沉积物的运输,Ksar Sghir 海滩出现了沉积。达利娅海滩则表现出持续侵蚀和局部增生的混合反应,这是受海滩东侧渔港建设的影响。为了进一步了解这些海岸线的未来轨迹,我们采用卡尔曼滤波模型预测了 2034 年和 2044 年的海岸线位置。这些预测结果凸显了海滩之间继续出现分歧的可能性。由于持续的侵蚀,达利娅海滩西侧的基础设施可能会遭到破坏,而东侧则可能需要增加疏浚,以保持渔港通道的畅通。另一方面,预计 Ksar Sghir 海滩将继续增生,预计负面影响极小。这项研究为了解港口开发对相邻海岸线的不同影响提供了宝贵的见解。它突出了长期监测和施工前数据对了解海岸干预的重要性。此外,结合海岸线预测可以帮助制定海岸线和港口功能的可持续管理策略。
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引用次数: 0
Adsorption Isotherms and Kinetics Studies of Lead on Polyacrylonitrile-Based Activated Carbon Nonwoven Nanofibres 铅在聚丙烯腈基活性炭无纺纳米纤维上的吸附等温线和动力学研究
Pub Date : 2024-06-01 DOI: 10.12912/27197050/186546
Basma I. Waisi, Israa S. Al-Bayati, Asrar A. Alobaidy, Mohammed A. Manal
Activated carbon nonwoven nanofibres (ACNN) mat derived from polyacrylonitrile was manufactured through the electrospinning method followed by thermal treatment steps. The ACNN ability to adsorb Pb(II) from a liquid solution was evaluated. The fabricated ACNN was characterized using scanning electron microscope, Fourier-transform infrared spectroscopy, and Brunauer-Emmett-Teller method. The resulting ACNN exhibited nanofibres with a diameter of 530 nm and a surface area of 550 m 2 /g. Various adsorption experiments were performed in batch scale to study the impact of factors like contact time, initial Pb(II) ions concentration, and pH. At pH 5, ACNN achieved a removal efficiency of 98% of Pb(II). The equilibrium data for Pb(II) ions was analysed using the Freundlich and Langmuir isotherm models. Both kinetic models (pseudo-first-order and pseudo-second-order) and isotherm models were tested. Results revealed that the Langmuir model accurately described the adsorption isotherm of Pb(II) with a maximum capacity of 15.72 mg/g. Data analysis suggested that the pseudo-second-order model better represented the kinetic adsorption behaviour of Pb(II).
以聚丙烯腈为原料的活性炭无纺纳米纤维(ACNN)毡是通过电纺丝方法制造的,然后经过热处理步骤。评估了 ACNN 从液体溶液中吸附铅(II)的能力。使用扫描电子显微镜、傅立叶变换红外光谱和布鲁瑙尔-艾美特-泰勒法对制备的 ACNN 进行了表征。制得的 ACNN 显示出直径为 530 nm、表面积为 550 m 2 /g 的纳米纤维。在批量规模下进行了各种吸附实验,以研究接触时间、初始铅(II)离子浓度和 pH 值等因素的影响。在 pH 值为 5 时,ACNN 对铅(II)的去除率达到 98%。采用 Freundlich 和 Langmuir 等温线模型分析了 Pb(II) 离子的平衡数据。对动力学模型(假一阶和假二阶)和等温线模型都进行了测试。结果表明,Langmuir 模型准确地描述了铅(II)的吸附等温线,最大吸附容量为 15.72 毫克/克。数据分析表明,假二阶模型更好地代表了铅(II)的动力学吸附行为。
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引用次数: 0
Quantitative Evaluation to the Sediment Load at a Part of Euphrate River in Center of Iraq 对伊拉克中部幼发拉底河部分河段沉积物负荷的定量评估
Pub Date : 2024-06-01 DOI: 10.12912/27197050/186867
Majd A. Al Bayaty, Riyath Z. Al Zubaidy, N. A. Almansory
Estimates sediment transport in Iraqi Rivers are essential for effective rivers management, particularly when de - livery rates is potential threat to environment and ecological systems. Therefore, this research was performed for estimating sediment transport rates in a certain reach from Euphrates River downstream Al Hindiyah Barrage and examine the stat of Entrainment Rate Esi of bed sediments under a unsteady stream flow. In spite of complexity and the difficulty of conducting measurements, the sediment load were measured with satisfactory perfection to achieve acceptable results for monitoring this river reach. The acoustic Doppler current profiler (ADCP) technique were used to measure velocity distribution, cross section profiles
估算伊拉克河流的泥沙输运对有效管理河流至关重要,尤其是当泥沙流失率对环境和生态系统构成潜在威胁时。因此,本研究旨在估算幼发拉底河下游 Al Hindiyah 拦河坝特定河段的沉积物迁移率,并研究在不稳定水流条件下河床沉积物的夹带率 Esi。尽管测量过程复杂且困难重重,但对沉积物负荷的测量结果令人满意,为监测该河段提供了可接受的结果。采用声学多普勒流速剖面仪 (ADCP) 技术测量流速分布、横截面剖面
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引用次数: 0
Assessment of the Impact of Covid-19 Related Containment on the Normalized Vegetation Index – A Remote Sensing Study of the Korifla Sub Watershed, Morocco 评估与 Covid-19 相关的遏制措施对归一化植被指数的影响--摩洛哥 Korifla 小流域遥感研究
Pub Date : 2024-06-01 DOI: 10.12912/27197050/186267
Eddefli Fatimazahra, Tayebi Mohamed, Sara Salih
This study analyzes the impact of containment due to the COVID-19 pandemic on the vegetation cover of the Korifla sub-watershed, based on remote sensing data and spatial analysis. The aim of this study was to analyze the impact of the containment imposed in response to the COVID-19 pandemic on the vegetation cover and to highlight significant changes in the distribution of normalized difference vegetation index (NDVI) before and after the containment period, as well as to identify the areas most affected by these changes. The results highlight significant fluctuations in the distribution of vegetation cover, including a decrease in water area and variations in the categories of bare soil, sparse, medium-dense and dense vegetation. Using NDVI as an indicator of vegetation health, changes before and after the confinement period were highlighted. These results highlight the impact of anthropogenic disturbances such as confinement on plant ecosystems, and underline the importance of continu - ously monitoring vegetation cover for sustainable natural resource management and biodiversity preservation. With climatic conditions in Morocco stagnating in the two years following containment, the climatic factor is now set aside, and the focus shifts to the impact of reduced human activity.
本研究基于遥感数据和空间分析,分析了因 COVID-19 大流行而实施的遏制措施对 Korifla 子流域植被覆盖的影响。本研究旨在分析因 COVID-19 大流行而实施的遏制措施对植被覆盖的影响,突出遏制期前后归一化差异植被指数(NDVI)分布的显著变化,并确定受这些变化影响最大的地区。结果表明,植被覆盖的分布出现了明显的波动,包括水域面积的减少以及裸土、稀疏、中等密集和密集植被类别的变化。使用 NDVI 作为植被健康指标,突出显示了封闭期前后的变化。这些结果凸显了人为干扰(如封闭)对植物生态系统的影响,并强调了持续监测植被对可持续自然资源管理和生物多样性保护的重要性。由于摩洛哥的气候条件在封育后的两年内停滞不前,气候因素现在被搁置一边,重点转移到减少人类活动的影响上。
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引用次数: 0
Corrigiola Litoralis Subsp. Telephiifolia (Pourr.) Briq.: an Extensive Review of Geographical Distribution, Phytochemical Content, Functionality, and Guidelines for Prospect Investigations Corrigiola Litoralis Subsp. Telephiifolia (Pourr.) Briq.:关于地理分布、植物化学成分、功能和前景调查指南的广泛综述
Pub Date : 2024-06-01 DOI: 10.12912/27197050/186225
Wissal El Yaagoubi, Meriem Soussi, Belmalha Saadia, I. Mansouri, Wafae Squalli, Lahsen El Ghadraoui
Corrigiola telephiifolia is an aromatic and medicinal herb whose constituents hold worldwide interest for its vari - ous ethnopharmacological properties in the pharmaceutical field. This review provides a comprehensive analysis of the geographical distribution, phytochemical contents, traditional uses, and pharmacological properties of Cor-rigiola telephiifolia Pourr. Through an exhaustive search of primary databases, literature from 1950 to 2022 was examined, focusing on keywords to ensure inclusivity. The plant exhibits diverse physiological functions, poten - tially aiding in the prevention of diabetes, dyslipidemia, oxidative stress, and microbial infections while enhancing immunity. Similarly, we outlined recommendations for future research aimed at addressing existing gaps, and additional comprehensive studies are necessary to investigate the influence of climate change and other factors on the variability of chemical constituents. These endeavors would provide fresh perspectives on the biological characteristics of this species and offer guidance for future research initiatives.
远志(Corrigiola telephiifolia)是一种芳香药草,其成分在制药领域具有多种民族药理学特性,因而受到全世界的关注。本综述全面分析了茯苓的地理分布、植物化学成分、传统用途和药理特性。通过对主要数据库的详尽检索,研究了 1950 年至 2022 年期间的文献,重点关注关键词以确保其包容性。该植物具有多种生理功能,可能有助于预防糖尿病、血脂异常、氧化应激和微生物感染,同时增强免疫力。同样,我们概述了对未来研究的建议,旨在弥补现有差距,有必要开展更多综合研究,以调查气候变化和其他因素对化学成分变化的影响。这些努力将为该物种的生物特征提供新的视角,并为未来的研究计划提供指导。
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引用次数: 0
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