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Beyond the AFCEE protocol for natural attenuation

GROUND WATER MONITORING AND REMEDIATION 1998年第3期18卷 70-77页

作者： Nyer, EK Mayfield, P Hughes, J Evan K. Nyer is a vice president with ARCADIS Geraghty & Miller Inc. where he is responsible for maintaining and expanding the company's technical expertise in geology/hydrogeology engineering modeling risk assessment and bioremediation. He has been active in the development of new treatment technologies for many years. His areas of research interest include biological treatment suspended solids separation chemical oxidation in situ treatment air treatment systems and the application of new technologies to ground water cleanup. He has been responsible for the strategies technical design and installation of more than 200 ground water and soil remediation systems at contaminated sites throughout the United States. Paulette Mayfield is the project manager for engineering services in ARCADIS Geraghty & Miller Inc. 's Austin Texas office. As such she manages engineering projects conducted by the office and also provides engineering and regulatory support for projects conducted by ARCADIS Geraghty & Miller nationwide. She is also a member of ARCADIS Geraghty & Miller's compliance audit team and has participated in or managed numerous projects associated with RCRA program compliance solid and hazardous waste management regulatory analysis and compliance planning and facility closure/demolition/ property redevelopment. She has participated in the design operation management and evaluation of numerous bioremediation projects including hazardous waste land treatment units petroleumcontaminated soil remediation projects and ground water natural attenuation and enhanced natural attenuation projects. Mayfield also conducted two years of laboratory research involving the in situ biodegradation of petroleum products. She received her graduate degree in environmental engineering from Texas Tech University and has co-authored several publications addressing in situ bioremediation techniques. Joseph D. Hughes is a hydrogeologist in ARCADIS Geraghty & Miller's Tampa Florida office. His areas of research int

The historical analytical data collected at Murdock demonstrate that: Constitutent concentrations in ground water in the area of highest known contaminant concentrations and along the flow path downgradient of that area decreased over the 3.5-year period when we began monitoring at the site and when we conducted the biogeochemical study. The ground water plume has stabilized and will not move further south. Chlorinated hydrocarbon parent products (TCE and 1,1,1-TCA) are degrading to their daughter products (1,1-DCA, 1,1-DCE, and cis-1,2-DCE) and thence to VC. The estimated total mass of chlorinated hydrocarbons dissolved in ground water was reduced from 1032 to 346 pounds between 1993 and the end of 1996 (approximately 66%). However, the scoring from the AFCEE protocol showed that there was only 'limited' evidence of biological dechlorination occurring at the site.

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Worrying about Climate Change

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Atmospheric and Climate Sciences 2022年第2期12卷 441-461页

作者： Naser W. Alnaser Roger Flanagan Lawrence Kazmerski Ali A. Sayigh Munir H. Nayfeh Waheeb E. Alnaser Department of Architecture and Interior Design College of Engineering University of Bahrain Isa Town Kingdom of Bah-rain School of Construction Management and Engineering University of Reading Reading UK National Renewable Energy Laboratory (NREL) Renewable and Sustainable Energy Institute (RASEI) University of Colora-do Boulder Boulder USA World Renewable Energy Congress & World Renewable Energy Network Reading UK Department of Physics University of Illinois at Urbana-Champaign Urbana USA Department of Natural Resources and Environment College of Graduate Studies Arabian Gulf University Manama Kingdom of Bahrain

It is becoming clear that Climate Change is getting severe. It was reported that the improved ocean heat measurements have a rate of warming upwards from 4 to 5 Hiroshima bombs liberated heat per second or 388,800 per day. It was reported also that our climate has accumulated the equivalent of a total of more than 2.8 billion Hiroshima bombs’ worth of heat since 1998. Despite this global concern about the effect of global change on environment, it is believed that the problem is much more severe and with greater impact on all facets of life. The effect of Climate Change, especially with a 1℃increase in global temperature (from 14℃to 15℃) is equivalent to the heat liberated from explosion of about 300 million Hiroshima of atomic bomb. This is why this CoP 26 becomes more serious and had targeted year 2060 as a year of zero CO₂ emission. This paper discusses the impact of climate change on ten sectors;water, water desalination, energy, renewable energy supply, health, society, agriculture, economy, industry, and built environment.

关键词： Global Warming Impact of Climate Change Major Impact of Climate Change Physics of Climate Change

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Nucleation-Step Study of Silicon Homoepitaxy for Low-Temperature Fabrication of Si Solar Cells

Nucleation-Step Study of Silicon Homoepitaxy for Low-Tempera...

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IEEE Photovoltaic Specialists Conference

作者： Aboozar Mosleh Seyed Amir Ghetmiri Benjamin R. Conley Husam Abu-Safe Zafar Waqar Mourad Benamara Shui-Qing Yu Hameed A. Naseem MicroElectronics-Photonics Program University of Arkansas German-Jordanian University School of Natural Resources Engineering and Management Electrical Engineering Department University of Arkansas Institute for Nano Science and Engineering University of Arkansas Arkansas GREEN Research Center for Solar Cells University of Arkansas

ISBN: (纸本)9781479933006

Smooth nucleation of silicon has been achieved as a critical step in epitaxial growth process using ultra high vacuum chemical vapor deposition system at 250℃. Proper conditions were achieved by studying the effect of key nucleation parameters such as plasma power, hydrogen dilution and deposition temperature. High-resolution transmission electron microscopy has been employed to study rough nucleation condition in order to achieve perfect nucleation step, which resulted in high quality epilayers.

关键词： Epitaxial layers Crystalline materials Silicon

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The Petiole of the Miriti Palm: A sustainable material for wind turbine blades?

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Journal of Physics: Conference Series 2024年第8期2767卷 082007-082007页

作者： I. Dos S. Gomes J. R. P. Vaz J. C. H. Wong D. H. Wood Graduate Program in Natural Resources Engineering Institute of Technology Federal University of Para Belém Pará 66075-110 Brazil Graduate Program in Natural Resources Engineering Institute of Technology Federal University of Para Ananindeua Pará 67130-660 Brazil Department of Mechanical and Manufacturing Engineering University of Calgary Calgary Alberta T2N 1N4 Canada

The Miriti Palm (Mauritia flexuosa) grows abundantly in the Amazon Region of Brazil. The petiole (PMP) that supports the leaves, has a density of about one-half of Balsa wood (BW), which is used in the manufacture of wind turbine blades. A further possible advantage of PMP is that harvesting does not kill the palm tree, in contrast to the harvesting of BW. Because the mechanical properties of PMP have not been measured, we determined the shear and tensile properties of 16 samples of PMP and BW to allow a preliminary assessment of PMP as a possible material for blades. The absolute shear and tensile strengths for BW are higher, but specific properties (normalized by the density) are similar and can favour PMP. Direct substitution of BW by PMP would reduce the weight of a typical large blade by around 2%.

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Tourism Potential in West Beach Coastal Area of Banten Province Based on Land Use Spatial Pattern

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IOP Conference Series: Earth and Environmental Science 2022年第1期950卷

作者： A Wartono E K S H Muntasib H S Arifin Natural Resources and Environmental Management Science Study Program Graduate School of IPB University Department of Forest Resources Conservation and Ecotourism Faculty of Forestry IPB University Departement of Landscape Architecture Faculty of Agriculture IPB University

The west beach coastal area of Banten province is very productive. Local governments use this area for various development activities, tourism in particular. This study aims to determine the tourism potential of the west coast of Banten Province based on the spatial pattern of land use by local regulations. Thus, the development of coastal tourism can develop in an integrated and sustainable manner. The research methodology used is literature study, interviews, field verification, spatial analysis (Arc-GIS), and policy analysis based on the Banten Province Spatial Plan. Based on policy analysis related to regional spatial planning in Banten Province, there are three strategic tourism areas on the west coast, including; (a) Sumur Beach corridor, (b) Pandeglang West Coast corridor (Carita-Cigeulis), and (c) Serang West Coast Corridor (Anyer-Cinangka). The West Coast Corridor of The criteria for the physical type of beach suitable for tourism activities is wide beaches, not rocky, freshwater, and far from the highway. The west coast corridor area these criteria is the Serang West Coast Corridor (Anyer - Cinangka), precisely at Anyer Beach and Anyer Kidul Beach.

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Sustainability of Multilayer Plastics Waste management in Indonesia: A Multi-Aspect Sustainability Analysis (Msa) Approach

SSRN

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SSRN 2024年

作者： Anwar, Mayrianti Annisa Sasongko, Nugroho Adi Najib, Mukhamad Pranoto, Bono Firmansyah, Irman Suprihatin Prof BJ Habibie Complex Area Banten15314 Indonesia Natural Resources and Environmental Management Graduate Study Program IPB University Jl. Pajajaran IPB Baranangsiang Campus Bogor16144 Indonesia Kampus IPB Darmaga P.O. Box 220 Bogor Indonesia IPSC Sentul Area West Java16810 Indonesia Faculty of Economics and Management Jl. Agatis Kampus IPB Darmaga West Java Bogor16680 Indonesia Research Center for Limnology and Water Resources National Research and Innovation Agency Bogor Indonesia System Dynamics Centre Indonesian System Dynamics Experts Association Indonesia

The sustainability of multilayer plastics waste management in Indonesia is a critical concern, demanding a comprehensive approach. This study employs a Multi-Aspect Sustainability Analysis (MSA) to evaluate and improve the management of multilayer plastic waste. The environmental strategies include developing standards for environmentally friendly technologies, regular monitoring, and in-depth academic studies on waste utilization. Economically, consistent funding, industry-government collaboration, community involvement, and investment policy development are essential. Social strategies emphasize community engagement and capacity building for waste management. Governmental roles involve implementing data-driven plans, enhancing law enforcement, establishing independent organizations, and incentivizing participation. Technological advancements and standardization in recycling technologies are crucial. The study highlights the importance of integrated efforts across environmental, economic, social, and governmental aspects to achieve sustainable waste management, promoting environmental resilience, economic prosperity, and social well-being. The results obtained showed that the sustainability status of waste management of multilayer plastic in Indonesia, special in Surabaya City is sustainable with an index of 53.33%. To increase the sustainability status to be very sustainable, scenario 2 was selected, the optimistic scenario with improvements in 14 sensitive factors to increase the sustainability index to 78.37%. © 2024, The Authors. All rights reserved.

关键词： Sustainable development

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Community-centric importance and performance evaluation of Human-Orangutan Conflict management in Aceh, Indonesia

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Trees, Forests and People 2024年 15卷

作者： Suhardono, Sapta Fitria, Laili Septiariva, Iva Yenis Sari, Mega Mutiara Ulhasanah, Nova Prayogo, Wisnu Arifianingsih, Nur Novilina Buana, Dwinto Martri Aji Suryawan, I Wayan Koko Environmental Sciences Study Program Faculty of Mathematics and Natural Sciences Universitas Sebelas Maret Surakarta 57126 Indonesia Department of Environmental Engineering Faculty of Engineering Universitas Tanjungpura Pontianak 78124 Indonesia Civil Engineering Study Program Faculty of Engineering Universitas Sebelas Maret Jl. Ir Sutami No.36 Surakarta 57126 Indonesia Department of Environmental Engineering Faculty of Infrastructure Planning Universitas Pertamina Jakarta 12220 Indonesia Department of Building Engineering Education Faculty of Engineering Universitas Negeri Medan Medan 20221 Indonesia Department of Environmental Engineering Faculty of Civil and Environmental Engineering Institut Teknologi Bandung Bandung 40116 Indonesia Department of Management Universitas Widyatama Bandung 40125 Indonesia Department of Natural Resources and Environmental Studies College of Environmental Studies and Oceanography National Dong Hwa University Hualien 97401 Taiwan

This study presents an Importance-Performance Analysis (IPA) to evaluate the management strategies for Human-Orangutan Conflict (HOC) in Aceh, Indonesia. Utilizing an IPA Grid, the research categorizes various management strategies into four quadrants, each reflecting different levels of community-perceived importance and performance. Strategies like “Orangutan-Safe Fences” and “Community-Based natural Resource management (CBNRM) for Orangutans” in Quadrant A are both important and performing well, underscoring the effectiveness of current efforts in these areas. Significantly, “Traditional Measures for Orangutan Deterrence,” which include non-harmful, traditional methods such as the use of specific noise deterrents, physical barriers, and community-led patrols to discourage orangutans from entering human areas, alongside “Quick Response program for Orangutan Incidents,” are placed in Quadrant B. In Quadrant C, “Strengthen Law Enforcement and Conservation Policies” are deemed less crucial and underperforming, suggesting a lower priority for immediate resource allocation. Lastly, Quadrant D includes well-performing but less critical strategies like “Early Warning Systems for Orangutan Presence” and “Raise Local Awareness About Orangutans,” pointing to potential over-investment. The study's findings advocate for a strategic reallocation of resources and highlight the importance of aligning conservation efforts with community priorities for effective and sustainable HOC management. © 2024 The Author(s)

关键词： Aceh Community-based conservation Human-Orangutan Conflict Importance-performance analysis Wildlife management

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The Effect of Demographic Factors on Waste Generation and Heavy Metal in Illegal Landfill at Malaka Regency, East Nusa Tenggara Province

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IOP Conference Series: Earth and Environmental Science 2022年第1期950卷

作者： Leonarda Sofiani Rame Widiatmaka Arief Hartono Irman Firmansyah Study Program of Natural Resources Management and Environmental Graduate School Bogor Agricultural University Baranangsiang Campus Bogor Indonesia Departement of Soil and Land Resources Bogor Agriculture University Bogor Indonesia System Dynamics Center Indonesia

The population growth has led to a significant increase in the amount of waste every year. Meanwhile, several demographic factors influencing waste generation in Malaka Regency include an absence of a final landfill. This has caused the illegal dumping of waste which leads to various environmental problems. Therefore, this study aims to (I) analyze the effect of demographic factors on waste generation (II) determine the level of heavy metals and the chemical properties of the soil in the illegal landfill. In this study, the demographic factor sampling was conducted in all districts using a questionnaire to obtain each household sample and waste was weighed directly with the Stratified Random Sampling method. Also, soil samples at the landfill site were obtained through field observation and composite sampling. The results showed that age, gender of each family head, income, occupation, latest education, and the number of family members had a significant effect on waste generation in Malaka Regency. Based on the results, the content of Pb, Cd, and Hg in the soil at different waste disposal sites in Malaka Regency had passed the standard threshold value in soil, which showed that the land had been polluted by heavy metals.

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The Water Quality Characteristics and Quality Status of Bengkulu River and Nelas River, Bengkulu Province: Conditions for The Last Six Years

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IOP Conference Series: Earth and Environmental Science 2022年第1期950卷

作者： I Khalik A Sapei S Hariyadi E Anggraeni Natural Resources and Environmental Management Study Program Graduate School of IPB University Bogor Indonesia Public Health Study Program STIKES Tri Mandiri Sakti Bengkulu Indonesia Department of Civil and Environmental Engineering IPB University Bogor Indonesia Department of Aquatic Resources Management IPB University Bogor Indonesia Department of Agroindustrial Technology IPB University Bogor Indonesia

The existence of extractive activities around the river has a negative impact on the quality of river water. This study aims to provide an overview of water quality characteristics and water quality status of Bengkulu River and Nelas River in Bengkulu Province. The data used is river quality monitoring conducted by the Environment and Forestry Service of Bengkulu Province from 2014 to 2019. Measurements are carried out twice a year representing, the dry season (March to June) and the rainy season (September to December). The observation stations representing upstream, middle and downstream of rivers conditions. The parameters observed were physical, chemical, and biological parameters. The water quality status is determined using the Storet Index. The results show that both rivers have Storet Index >-31. It means that these river water are heavily polluted. Parameters that have exceeded the water quality standard are TSS, DO, BOD, COD, Fe, Mn, Cu, and total coliform. The river water quality parameters, especially heavy metals, may be caused by open land being washed and carried into the river body. The existence of population and animal activities as well as industrial waste outlets at upstream also affect the decline of river water quality.

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A land-neutral expansion of Brazilian renewable fuel production

Research Square

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Research Square 2021年

作者： Camargo, Luis Ramirez Castro, Gabriel Gruber, Katharina Jewell, Jessica Klingler, Michael Turkovska, Olga Wetterlund, Elisabeth Schmidt, Johannes Institute for Sustainable Economic Development University of Natural Resources and Life Science Vienna Austria Department of Electrical Engineering and Energy Technology Vrije Universiteit Brussel Brussels Belgium Flanders Make Heverlee3001 Belgium Energy Planning Program Graduate School of Engineering Federal University of Rio de Janeiro Rio de Janeiro Brazil Department of Space Earth and Environment Chalmers University of Technology Sweden Department of Geography University of Innsbruck Innsbruck Austria Energy Engineering Division of Energy Science Luleå University of Technology Luleå971 87 Sweden LaxenburgA-2361 Austria

Biofuels are currently the only available bulk renewable fuel. They have, however, limited expansion potential due to high land requirements and associated risks for biodiversity, food security, and land conflicts. We therefore propose to increase output from ethanol refineries in a land-neutral methanol pathway: surplus CO2-streams from fermentation are combined with hydrogen from renewably powered electrolysis to synthesize methanol. We illustrate this pathway with the Brazilian sugarcane ethanol industry using a spatio-temporal model. The fuel output of existing ethanol generation facilities can be increased by 42%-49% or ∼100TWh without using additional land. This amount is sufficient to cover projected growth in Brazilian biofuel demand in 2030. We identify a trade-off between renewable energy generation technologies: wind power requires the least amount of land whereas a mix of wind and solar costs the least. In the cheapest scenario, green methanol is competitive to fossil methanol at a carbon price of 80C/tCO2 © 2021, CC BY.

关键词： Methanol

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