AIMS Environmental Science最新文献_第2页

Freshwater microalgae-based wastewater treatment under abiotic stress 非生物胁迫下淡水微藻废水处理研究

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023028

Adel I. Alalawy, Yang Yang, Fahad M. Almutairi, Haddad A. El Rabey, Mohammed A. Al-Duais, Abdelfatah Abomohra, El-Sayed Salama

{"title":"Freshwater microalgae-based wastewater treatment under abiotic stress","authors":"Adel I. Alalawy, Yang Yang, Fahad M. Almutairi, Haddad A. El Rabey, Mohammed A. Al-Duais, Abdelfatah Abomohra, El-Sayed Salama","doi":"10.3934/environsci.2023028","DOIUrl":"https://doi.org/10.3934/environsci.2023028","url":null,"abstract":"<abstract> Wastewater treatment by microalgae is an eco-friendly and sustainable method for pollutant removal and biomass generation. Microalgae production under abiotic stress (such as salinity/salt stress) has an impact on nutrient removal and fatty acid accumulation. In this study, a freshwater microalgal strain (<italic>Desmodesmus communis</italic> GEEL-12) was cultured in municipal wastewater with various NaCl concentrations (ranging from 25–150 mM). The growth kinetics and morphological changes of the microalgae were observed. The nutrient removal, salinity change, fatty acid composition, and biodiesel quality under various groups were also investigated. The maximum growth of <italic>D. communis</italic> GEEL-12 was observed in the control group at 0.48 OD680nm. The growth inhibition was observed under high salt conditions (150 mM), which showed poor tolerance with 0.15 OD680nm. The nitrogen (N) and phosphorus (P) removal significantly decreased from 99–81% and 5.0–5.9% upon the addition of 100–150 mM salt, respectively. Palmitic acid (C16:0) and stearic acid (C18:0) were the most common fatty acid profiles. The abundance of C18:0 enhanced from 49.37%–56.87% in <italic>D. communis</italic> GEEL-12 upon high NaCl concentrations (100–150 mM). The biodiesel quality index of <italic>D. communis</italic> GEEL-12 under 50–75 mM salt concentrations reached the levels advised by international standards. </abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135497754","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

The impacts of multi-stakeholders collaboration on management and mitigation of oil pipeline disasters in Nigeria 多方利益攸关方合作对尼日利亚石油管道灾害管理和缓解的影响

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023006

Francis I. Johnson, Richard Laing, Bassam Bjeirmi, M. Leon

{"title":"The impacts of multi-stakeholders collaboration on management and mitigation of oil pipeline disasters in Nigeria","authors":"Francis I. Johnson, Richard Laing, Bassam Bjeirmi, M. Leon","doi":"10.3934/environsci.2023006","DOIUrl":"https://doi.org/10.3934/environsci.2023006","url":null,"abstract":"Pipeline disasters have caused large losses to Nigeria in terms of economic, ecological, and human lives. A single incident can have devastating consequences for the environment, individuals, and communities. Research to date has recommended the significance of stakeholders, collaboration in overseeing these issues. This study examines the impacts of multi- stakeholders, collaboration on the management and mitigation of oil pipeline disasters in Nigeria, adopting the use of questionnaires and semi-structured interviews. The benefits of stakeholders, collaboration in the context of this study include but are not limited to: better information/intelligence sharing; improved decision-making; enhanced coordinated and timely intervention; improved response. The challenges associated with collaboration are: conflicts in shared responsibilities; inadequate resources; inadequate enforcement of environmental laws and guidelines; and inefficient communication systems. The goals of the collaborative pact will be effectively achieved if these challenges are properly addressed. This study recommends a framework for multi-stakeholders collaboration toward effective and efficient management and mitigation of oil pipeline disasters in Nigeria.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70231754","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

'Localizing' the sustainable development goals: A multivariate analysis of Spanish regions “本地化”可持续发展目标:西班牙地区的多变量分析

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023021

Manuel Rieiro-García, Víctor Amor‐Esteban, Cristina Aibar‐Guzmán

{"title":"'Localizing' the sustainable development goals: A multivariate analysis of Spanish regions","authors":"Manuel Rieiro-García, Víctor Amor‐Esteban, Cristina Aibar‐Guzmán","doi":"10.3934/environsci.2023021","DOIUrl":"https://doi.org/10.3934/environsci.2023021","url":null,"abstract":"Based on the content analysis of the websites of 102 Spanish municipalities related to actions aligned with the 2030 Agenda and the Sustainable Development Goals (SDGs), the X-STATIS technique was applied to analyze the status and dynamic evolution of commitment to the SDGs in regional and local governments over the period of 2016–2021. The results show a low but increasing level of SDG commitment, which also varies significantly across municipalities and regions, as well as by SDGs, which can be attributed to the influence of several sociodemographic factors, such as the number of inhabitants, dependent population and population density. SDG8 and SDG11 stand out as the main priorities of the municipalities, while initiatives related to SDG5, SDG6 and SDG 17 are the least prioritized. The COVID-19 pandemic has marked a turning point in this regard, with greater importance being given to the SDGs more related to people and prosperity. Our findings help citizens and public authorities to understand sustainable regions and municipalities, assess their performance in relation to different dimensions of sustainability and identify key challenges for future improvements. Specifically, the results suggest that public policies should promote actions related to gender equality, drinking water and sanitation and partnerships, as well as favor investment in the regions and municipalities that are lagging behind, in order to improve their level of commitment to the 2030 Agenda and reduce inequalities. From an academic point of view, our results open a door for the analysis of possible trajectories in the implementation of the SDGs at regional and local levels and the study of their determinants.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70232116","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: 2

Assessment of the implications of energy-efficient technologies on the environmental sustainability of rail operation 评估节能技术对铁路营运环境可持续性的影响

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023039

Sanjeev Sharma, Vinay Kandpal, Tanupriya Choudhury, Ernesto D.R. Santibanez Gonzalez, Naveen Agarwal

{"title":"Assessment of the implications of energy-efficient technologies on the environmental sustainability of rail operation","authors":"Sanjeev Sharma, Vinay Kandpal, Tanupriya Choudhury, Ernesto D.R. Santibanez Gonzalez, Naveen Agarwal","doi":"10.3934/environsci.2023039","DOIUrl":"https://doi.org/10.3934/environsci.2023039","url":null,"abstract":"<abstract> Railway transportation is a significant contributor to Green House Gas (G.H.G.) emissions in the transportation sector. To mitigate this impact, it is crucial to adopt energy-efficient technology solutions. Improving the energy efficiency of railways can significantly reduce their environmental footprint. We employ a case study methodology to evaluate how energy-efficient technologies such as regenerative braking and lightweight materials affect the sustainability of railway operations. The research assesses the amount of energy used, emissions produced and overall effectiveness of these innovations on railway systems. The findings provide valuable insights into enhancing sustainability in rail transport and inform further research and policy initiatives to advance energy efficiency in the transportation industry. By embracing these technologies, we can potentially reduce the environmental impact of railways while supporting more equitable and sustainable transportation systems that align with global emission reduction goals and U.N. Sustainable Development Goals 2030. </abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134882635","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

A Comprehensive Review of Nature-Based Solutions: Current status and future research 基于自然的解决方案综述:现状与未来研究

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023037

Hongpeng Fu

{"title":"A Comprehensive Review of Nature-Based Solutions: Current status and future research","authors":"Hongpeng Fu","doi":"10.3934/environsci.2023037","DOIUrl":"https://doi.org/10.3934/environsci.2023037","url":null,"abstract":"<abstract> Climate change and the rapid development of cities have brought considerable challenges to the sustainable development of urban and rural areas, and using nature-based solutions to strengthen ecosystems' resilience and response capacity has become a consensus strategy. Natural solutions are the collective name for all solutions that increase the city's resilience while benefiting the environment and humanity. To deepen the theoretical research and practical development of NBS, I reviewed 87 papers on NBS through the Web of Science database. The study found that NBS-related research mostly focuses on five aspects: Concept of ideas, applied technology, implementation guidelines, performance evaluation and platform building. Currently, the emphasis is predominantly on ideas and platform development in developed countries. While the other three domains were also explored, they primarily adhere to conventional methodologies and content within the NBS context. While NBS research covered many areas and boasts an integrative, collaborative approach, it remained fragmented and lacked a cohesive system. On this basis, I proposed a systematic framework to strengthen the systematicity of the NBS system, give full play to the unique advantages of NBS as a comprehensive concept and promote the specific implementation and development of NBS. I examined NBS's progression and benefits, providing a thorough insight into its significance in sustainable urban development. The research introduced a cohesive framework by elucidating NBS's foundational concepts guiding subsequent inquiries. Such findings are pivotal for facilitating informed strategies and enhancing resilience to climate adversities, underscoring a comprehensive approach to sustainability. </abstract>","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135311288","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

An environmental decision support system for manufacturer-retailer within a closed-loop supply chain management using remanufacturing 基于再制造的闭环供应链环境决策支持系统

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023036

Subhash Kumar, Ashok Kumar, Rekha Guchhait, Biswajit Sarkar

引用次数: 0

A Study of Infaunal Abundance, Diversity and Distribution in Chettuva Mangrove, Kerala, India 印度喀拉拉邦切图瓦红树林动物丰度、多样性及分布研究

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023005

Rukhsana Kokkadan, Resha Neznin, Praseeja Cheruparambath, Jerisa Cabilao, Salma Albouchi

引用次数: 1

Design and performance of a cyclone separator integrated with a bottom ash bed for the removal of fine particulate matter in a palm oil mill: A simulation study 带底灰床的旋风分离器的设计和性能，用于去除棕榈油厂的细颗粒物:模拟研究

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023020

N. Sylvia, H. Husin, A. Muslim, Yunardi, Aden Syahrullah, Hary Purnomo, R. Dewi, Y. Bindar

{"title":"Design and performance of a cyclone separator integrated with a bottom ash bed for the removal of fine particulate matter in a palm oil mill: A simulation study","authors":"N. Sylvia, H. Husin, A. Muslim, Yunardi, Aden Syahrullah, Hary Purnomo, R. Dewi, Y. Bindar","doi":"10.3934/environsci.2023020","DOIUrl":"https://doi.org/10.3934/environsci.2023020","url":null,"abstract":"Long-term exposure to pollution from particulate matter in palm oil mills can result in chronic respiratory diseases, cardiovascular diseases and mortality. Particulate matter with a size of less than 2.5 μm (PM2.5) has a greater impact than one with a size of 10 μm. The current PM cleaning equipment in palm oil mills consists of cyclones that are incapable of optimally filtering PM2.5. For this reason, it is necessary to design cyclone applications for fine particle separation in palm oil mills. Normal cyclones are incapable of segregating particles smaller than 2.5 μm. This study's objective was to design a cyclone with a filter on the vortex detector. These cyclones are utilized in PM2.5 fine particle filtration systems. Using computational fluid dynamics, cyclone performance is analyzed in terms of removal efficiency and pressure decrease. The research was conducted utilizing the Reynolds tress model with varying inlet velocities of 10, 15, 20, 25 and 30 meters per second. The filter is composed of boiler bottom ash refuse from palm oil mills; 0.310 meters is the height of the filter bed inserted in the vortex finder. The obtained results demonstrated that the PM2.5 removal efficiency reached 98%, while the pressure decrease was only 93 Pa greater than that of conventional cyclones. Thereby, cyclone designs with bottom ash filters can be used to filter fine particulate matter, particularly particles smaller than 2.5 μm.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70232057","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

The Effect of Environmental Albedo on the Energy Use of a Selected House in Amman-Jordan 环境反照率对安曼-约旦选定住宅能源使用的影响

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023035

Saad S. Alrwashdeh

引用次数: 0

Toward achieving zero-emissions in European Union countries: The contributions of trade and overseas direct investments in consumption-based carbon emissions 欧盟国家实现零排放:贸易和海外直接投资对基于消费的碳排放的贡献

IF 1.4

AIMS Environmental Science Pub Date : 2023-01-01 DOI: 10.3934/environsci.2023008

O. Osabuohien-Irabor, I. Drapkin

{"title":"Toward achieving zero-emissions in European Union countries: The contributions of trade and overseas direct investments in consumption-based carbon emissions","authors":"O. Osabuohien-Irabor, I. Drapkin","doi":"10.3934/environsci.2023008","DOIUrl":"https://doi.org/10.3934/environsci.2023008","url":null,"abstract":"To achieve the ideal emissions reduction goals, several studies have suggested that carbon emissions should be examined in the framework of both territorial and consumption-based emissions. Nevertheless, the European Union (EU) SDGs targets aimed at mitigating carbon emissions based on the United Nation (UN) Kyoto Protocol structure, only appears to be concerned with the reduction of territorial-based emissions whilst emissions embodied on imported goods and services receive very little attention. To this end, this study examines the contributions of outward foreign direct investment (OFDI) and disaggregate trade flows toward consumption-based sustainability in twenty-one (21) EU countries for the period 1995–2019. The study utilizes the STIRPAT model (Stochastic Impacts by Regression on Population, Affluence, and Technology) and battery of advanced econometric techniques such as the Cross-Sectional Autoregressive Distributed Lag (CS-ARDL), Common Correlated Effects (CCE) and the Cross-Sectional Distributed Lags (CS-DL) to examine the short-and long-run dynamics of OFDI and trade on consumption-based emissions. Finding reveals that EU exports and OFDI spillover reduces consumption-based emission, whilst import of goods and services promote emissions both in the short-run and long-run. This suggests that the progress report on carbon emissions reduction for most EU countries under the greenhouse gas accounting systems are merely carbon emissions outsourced to low-income countries whilst consumption-based emission continues to increase. These findings are robust to several econometric problems with set of policy implications provided for policymakers and governments to formulate more efficient strategies toward the mitigation of consumption-based carbon emissions among EU countries.","PeriodicalId":45143,"journal":{"name":"AIMS Environmental Science","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70231800","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: 1