Ecological Engineering Environmental Technology最新文献_第5页

Environmental Alpha Radiation from the Soil at a Prehispanic Ancient Sacred Site in Lima, Perú 利马前西班牙古代圣地土壤中的环境α辐射，Perú

Ecological Engineering Environmental Technology Pub Date : 2023-10-11 DOI: 10.12912/27197050/174034

Félix Díaz, Rafael Liza, Jhonny Rojas, Patrizia Pereyra, Maria Elena Lopez, Daniel Palacios, Laszlo Sajo-Bohus, Santiago Benites

{"title":"Environmental Alpha Radiation from the Soil at a Prehispanic Ancient Sacred Site in Lima, Perú","authors":"Félix Díaz, Rafael Liza, Jhonny Rojas, Patrizia Pereyra, Maria Elena Lopez, Daniel Palacios, Laszlo Sajo-Bohus, Santiago Benites","doi":"10.12912/27197050/174034","DOIUrl":"https://doi.org/10.12912/27197050/174034","url":null,"abstract":"In the present work, we investigate the concentration of radon and its alpha-emitting progeny at the archaeo - logical site of Huaca 20 in Lima, Peru. The site holds significant cultural and historical importance as an ancient pre-Inca ruin, providing valuable insights into the lives and rituals of its former inhabitants. We quantified the radon levels accurately with passive CR-39 TM detectors deployed within specially designed chambers at the site for 28 days. In a controlled laboratory environment, we processed the detectors afterward, examining and analyzing the resulting tracks using advanced microscopy and the ImageJ analysis software. The ground-level concentration of radon and its alpha-emitting progeny was determined, revealing elevated levels ranging from 2.4 ± 0.6 to 8.9 ± 0.9 (kBq/m 3 ). These findings underscore the unique presence of radon at Huaca 20 and highlight the potential impact on microorganisms at ground level. Likewise, these results can contribute to studies on the radiological risks faced by visitors, excavators and archaeologists. Finally, we show the spatial distribution of radon concentrations within the site by creating an iso-concentra-tion map. The iso-concentration map reveals a relation between areas with elevated radon levels and the good preservation of funerary contexts.","PeriodicalId":52648,"journal":{"name":"Ecological Engineering Environmental Technology","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136254074","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}

引用次数: 0

Geochemical Study of Mineralization of the Thermo-Mineral Sources in the North East of Algeria 阿尔及利亚东北部热矿产源成矿作用的地球化学研究

Ecological Engineering Environmental Technology Pub Date : 2023-10-11 DOI: 10.12912/27197050/174005

Dounia Nechem, Mani Hannouche, Nabil Bougherira, Hicham Chaffai

{"title":"Geochemical Study of Mineralization of the Thermo-Mineral Sources in the North East of Algeria","authors":"Dounia Nechem, Mani Hannouche, Nabil Bougherira, Hicham Chaffai","doi":"10.12912/27197050/174005","DOIUrl":"https://doi.org/10.12912/27197050/174005","url":null,"abstract":"The majority of thermal sources in northeastern of Algeria, is home to a large number of Hammams (spas) with high geothermal potential (El Tarf; Guelma, Souk Ahras, and Skikda). These thermal springs fall into the low temperature category (between 30°C and 150°C), however Hammam Debagh’s source being the warmest at about 90°C. Multiple field campaigns from 12 thermal springs were conducted in northeastern Algeria between 2020 and 2021 to highlight the geochemistry of these waters. The results show that these geologically protected waters have a totally stable geochemical composition, i.e., they have not undergone any chemical treatment or disinfection before being used thermally. Understanding the origin and mineralization of thermal waters in a continental Mediterranean environment is the focus of this investigation. The monitoring of physical indicators, including pH, temperature (°C), water conductivity, dissolved oxygen, flow, and turbidity, in conjunction with the use of the hydrochemical tool, chemical facies, and the saturation index, was done on the 12 of sites studied. Geological evidence has shown that these waters are typically found in deep aquifers and are subject to brittle tectonics. The find - ings of the investigations performed on the thermal waters revealed that for the evaporitic carbonated components, an enrichment in (Na +2 ) and in (Cl - ) mostly attributable to a geological origin, on the other hand, a depletion of halite (under-saturated) and to a lesser extent, gypsum.","PeriodicalId":52648,"journal":{"name":"Ecological Engineering Environmental Technology","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136254075","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}

引用次数: 0

Evaluation of the Concentration and Health Risks of Phosphates and Nitrates of a High Andean River 安第斯高山河流中磷酸盐和硝酸盐浓度及其健康风险评价

Ecological Engineering Environmental Technology Pub Date : 2023-10-11 DOI: 10.12912/27197050/174036

Wilfredo Saez Huaman, Eliana Contreras-López, Marcelo Portuguez-Maurtua, Víctor Sánchez-Araujo, Pedro Palomino-Pastrana, Mabel Escobar-Soldevilla, Luis Alberto Inostroza-Ruiz, Jose Antonio Llahuilla Quea

{"title":"Evaluation of the Concentration and Health Risks of Phosphates and Nitrates of a High Andean River","authors":"Wilfredo Saez Huaman, Eliana Contreras-López, Marcelo Portuguez-Maurtua, Víctor Sánchez-Araujo, Pedro Palomino-Pastrana, Mabel Escobar-Soldevilla, Luis Alberto Inostroza-Ruiz, Jose Antonio Llahuilla Quea","doi":"10.12912/27197050/174036","DOIUrl":"https://doi.org/10.12912/27197050/174036","url":null,"abstract":"In developing countries, river monitoring is very limited. Despite environmental and health problems, there is a paucity of information regarding the contaminants phosphates and nitrates. Thus, concentration and health risks, of phosphates and nitrates of the Ichu river waters, in Huancavelica, Peru, were evaluated. Sampling was carried out at six different points. Important water quality parameters were analyzed, such as pH, temperature, dissolved oxygen (DO) and electric conductivity (EC). The results revealed that the phosphate and nitrate varied between 0.475 to 0.575 mg/L and 11.10 to 14.00 mg/L, respectively. The concentration of phosphates and nitrates was 0.520±0.02 mg/L and 13.10±0.48, respectively. The Ichu River water had the quality that corresponded to its category, when compared to the permitted limits of the Environmental Quality Standards (EQS) for water. It did not present contamination according to the nutrient contamination index and the health risk was from chronic low intake. Besides, it presented a moderate relationship between nitrate and phosphate, due to the low concentration of phosphates during the dry season. What is new about this research is the approach to potential health risks of exposure to nitrates and phosphates, in a high Andean river in Huancavelica, Peru.","PeriodicalId":52648,"journal":{"name":"Ecological Engineering Environmental Technology","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136254076","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}

引用次数: 0

Land Use and Land Cover Analysis Using Geomatics Techniques in Amara City 基于地理信息技术的阿马拉市土地利用和土地覆盖分析

Ecological Engineering Environmental Technology Pub Date : 2023-10-11 DOI: 10.12912/27197050/173211

Ali Salah J. Al-Saedi, Zahraa M. Kadhum, Basheer S. Jasim

引用次数: 0

Urban Ecological Quality Assessment Based on Remote Sensing Data in African Context: A Case Study of Tangier City (Morocco, NW Africa) 基于遥感数据的非洲城市生态质量评价——以摩洛哥丹吉尔市为例

Ecological Engineering Environmental Technology Pub Date : 2023-10-11 DOI: 10.12912/27197050/174033

Mounia Tahiri, Hicham Bahi, Tarik Bouramtane, Anass Malah, Anas Sabri, Ismail Mohsine, Ilias Kacimi

{"title":"Urban Ecological Quality Assessment Based on Remote Sensing Data in African Context: A Case Study of Tangier City (Morocco, NW Africa)","authors":"Mounia Tahiri, Hicham Bahi, Tarik Bouramtane, Anass Malah, Anas Sabri, Ismail Mohsine, Ilias Kacimi","doi":"10.12912/27197050/174033","DOIUrl":"https://doi.org/10.12912/27197050/174033","url":null,"abstract":"Climate change, combined with rapid urbanization, can face many challenges in achieving urban ecological sustainability, especially in developing countries. Due to the lack of valuable data, measuring the negative impact of this urban environmental damage, particularly in African cities, is however difficult to investigate. In this context, this research proposes an efficient index, including environmental, societal, and topographic indicators, extracted from remote sensing data, to evaluate the spatial ecological vulnerability of Tangier city in Morocco. This composite index, called the Urban Ecological Quality Index (UEQI), was developed for 2002, 2013, and 2023 in the spring season, using the Principal Component Analysis (PCA) as a multivariate statistical technique. Furthermore, the spatial autocorrelation analysis of the UEQI was performed to study the correlation between the index values and its surroundings, using Global Moran’s I and Local Moran’s I test statistics. The results show that on the one hand, zones located in the center of the city kept poor ecological quality in the three studied years, where the lack of green spaces and the high population density are the main reasons for this bad state. On the other hand, climate variability, such as precipitation change, directly affects the ecological quality of Tangier city. In fact, from 2002 to 2013, due to Morocco’s increased precipitation during this decade, the UEQI improved in 36%, unchanged in 50%, and degraded in 14% of the study area. However, from 2013 to 2023, with more than 52% degraded UEQI, the ecological quality of the city was affected by drought periods, which have been more frequent and intense in this decade, especially in green areas and agricultural land.","PeriodicalId":52648,"journal":{"name":"Ecological Engineering Environmental Technology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136254079","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}

引用次数: 0

Impact of Waste on the Quality of Water Resources: Case Study of Taza City, Morocco 废弃物对水资源质量的影响:以摩洛哥塔扎市为例

Ecological Engineering Environmental Technology Pub Date : 2023-10-11 DOI: 10.12912/27197050/173375

Amina Abouabdallah, Yahya El Hammoudani, Fouad Dimane, Khadija Haboubi, Khadija Rhayour, Chaimae Benaissa

引用次数: 0

Development of a Sustainable Solar water Desalinator Using a Novel Hollow Hemispherical Grid Shell Solar Selective Absorber Designed via Phasor Particle Swarm Algorithm 利用相量粒子群算法设计的新型半球形空心网格壳太阳能选择性吸收体开发可持续太阳能海水淡化器

Ecological Engineering Environmental Technology Pub Date : 2023-10-11 DOI: 10.12912/27197050/173510

Oussama Gliti, Mohammed Igouzal, Mohamed Chafik El Idrissi

{"title":"Development of a Sustainable Solar water Desalinator Using a Novel Hollow Hemispherical Grid Shell Solar Selective Absorber Designed via Phasor Particle Swarm Algorithm","authors":"Oussama Gliti, Mohammed Igouzal, Mohamed Chafik El Idrissi","doi":"10.12912/27197050/173510","DOIUrl":"https://doi.org/10.12912/27197050/173510","url":null,"abstract":"In this pioneering work, we propose a manufacturing plan for a 3D hollow hemispherical solar selective absorber (HSSA). The HSSA stands out as a superior choice compared to planar absorbers, thanks to its numerous benefits and wide-ranging applications, particularly in solar harvesting and photothermal desalination. Importantly, HS - SAs reduce radiative losses by emitting thermal radiation along their curved surfaces, which enhances concentra - tion ratios and minimizes these losses. This study addresses the intricacies of fabricating the HSSA’s 3D convex shape. Our approach draws inspiration from a set of 2D flat solar selective absorbers (SSAs), each fine-tuned to adapt angles and intensities in response to solar radiation. These optimized SSAs are then arranged within a grid shell framework. As an illustrative example, we consider the widely-used selective coating W/Al 2 O 3 -W/Al 2 O 3 . We optimize parameters, including layer thicknesses and the incorporation of metal in the absorber, to attain optimal values for photothermal conversion output under varying oblique incidence angles. For this optimization process, we employ the non-parametric particle swarm algorithm known as ‘phasor,’ recognized for its autonomous search for global optima in complex and multimodal optimization problems. Our calculations yield a remarkable photo - thermal conversion efficiency, reaching up to 0.966429. This research is driven by the aspiration to maintain such high efficiency, even in the face of fluctuations in solar radiation incidence and intensity throughout the day. Sim - plifying calculations, we divide the hemisphere into five spots, optimizing each for peak performance according to its positioning. These collective efforts and innovations culminate in the development of a compact solar water desalination system, engineered for efficient operation, even in the presence of one sun.","PeriodicalId":52648,"journal":{"name":"Ecological Engineering Environmental Technology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136254284","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}

引用次数: 0

Temporal Analysis of Erosion Risk Classes and Rates in the Wadi Ouergha Watershed, Northern Morocco 摩洛哥北部Wadi Ouergha流域侵蚀风险等级和速率的时间分析

Ecological Engineering Environmental Technology Pub Date : 2023-10-11 DOI: 10.12912/27197050/173087

Basma Naoui, Asmae Titafi, Bouamar Baghdad, Saïd Chakiri, Mohamed Sadiki, Mohammed Amine Zerdeb, Mariyam El Omari, Sara Lididi

引用次数: 0

Solvent Effect on Total Phenolic Content, Total Flavonoids Content and the Antioxidant Activity of Ramalina lacera and Evernia prunastri Lichens Collected from the Trunks of Argania spinosa L. 溶剂对拉玛丽娜总酚含量、总黄酮含量及抗氧化活性的影响和Evernia prunastrive 产自阿根廷(Argania spinosa)树干的地衣l

Ecological Engineering Environmental Technology Pub Date : 2023-10-11 DOI: 10.12912/27197050/173990

Amal Naama, Basma Aghoutane, Hanae El Monfalouti1, Badr Eddine Kartah

引用次数: 0

Funnel and Gate Permeable Reactive Barrier Configuration for Contaminated Groundwater Remediation – Designing, Installation, and Modeling: A Review 用于污染地下水修复的漏斗和闸门渗透性反应屏障配置-设计，安装和建模:综述

Ecological Engineering Environmental Technology Pub Date : 2023-09-30 DOI: 10.12912/27197050/173047

Layla Abdulkareem Mokif, Ayad A.H. Faisal

引用次数: 0