Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Environmental Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 511 - 540 of 4847

Full-Text Articles in Entire DC Network

Struvite-Phosphorus Effects On Greenhouse Gas Emissions And Plant And Soil Response In A Furrow-Irrigated Rice Production System In Eastern Arkansas, Diego Della Lunga, Kristofor R. Brye, Trenton L. Roberts, Jonathan Brye, Michelle Evans-White, Christopher G. Henry, Daniel J. Lessner, Chandler Arel Feb 2024

Struvite-Phosphorus Effects On Greenhouse Gas Emissions And Plant And Soil Response In A Furrow-Irrigated Rice Production System In Eastern Arkansas, Diego Della Lunga, Kristofor R. Brye, Trenton L. Roberts, Jonathan Brye, Michelle Evans-White, Christopher G. Henry, Daniel J. Lessner, Chandler Arel

Crop, Soil and Environmental Sciences Faculty Publications and Presentations

Phosphorus (P) fertilizers with low water solubility, like struvite (MgNH4PO4·6H2O), have been identified to possibly reduce nutrient losses in furrow-irrigated cropping systems. However, there is a lack of research on the impacts of P and nitrogen (N) fertilization on greenhouse gas [GHG; i.e., methane (CH4), nitrous oxide (N2O), and carbon dioxide (CO2)] production in furrow-irrigated rice (Oryza sativa). The objective of this study was to evaluate the effects of electrochemically precipitated struvite (ECST), chemically precipitated struvite (CPST), triple superphosphate (TSP), diammonium phosphate (DAP), environmentally smart nitrogen …


Integrating Moral Norms And Stewardship Identity Into The Theory Of Planned Behavior To Understand Altruistic Conservation Behavior Among Hunters In Southwestern Utah (Usa), Jacob C. Richards, Zachary D. Miller, Russell Norvell, Jordan W. Smith Jan 2024

Integrating Moral Norms And Stewardship Identity Into The Theory Of Planned Behavior To Understand Altruistic Conservation Behavior Among Hunters In Southwestern Utah (Usa), Jacob C. Richards, Zachary D. Miller, Russell Norvell, Jordan W. Smith

Environment and Society Faculty Publications

We integrate moral norms and stewardship identity into the Theory of Planned Behavior (TPB) to predict the use of non-lead ammunition in the California condor recovery zone of southwestern Utah. Data were collected from licensed hunters via an online survey. Structural equation models of the TPB without and with the moral norms and stewardship identity constructs were compared to evaluate the utility of integrating these constructs into the TPB. Moral norms did have a significant direct influence on hunters’ behavioral intentions. Both moral norms and stewardship identity had significant indirect influences on behavioral intentions via the core constructs of the …


Using Repeat Photography To Document The Effects Of Climate Change On Glaciers In Iceland Change On Glaciers In Iceland, Madeleine Gassin Jan 2024

Using Repeat Photography To Document The Effects Of Climate Change On Glaciers In Iceland Change On Glaciers In Iceland, Madeleine Gassin

Environmental Studies Honors Papers

Climate change is a worldwide, multifaceted phenomenon that impacts our world today and will continue to impact our world in the future with even greater severity. Although climate change can sometimes be considered an abstract topic due to its being somewhat intangible, one direct way of observing the effects of climate change is by studying glaciers. This study combines a literature review with repeat photography in order to demonstrate the tangible effects of climate change on glaciers in Iceland and explore the secondary impacts on sea level elevation (SEL), water availability and distribution, hydropower, natural hazards, and tourism in Iceland. …


Evaluating Corporate Marine Plastic Pollution Reduction Pledges: Achieving Plastic Reductions Or Contributing To Greenwashing, Ansar Z. Mohammed Jan 2024

Evaluating Corporate Marine Plastic Pollution Reduction Pledges: Achieving Plastic Reductions Or Contributing To Greenwashing, Ansar Z. Mohammed

Master of Science in Environmental Sciences and Management Projects

This paper examines major corporations' commitments and performance in reducing virgin plastic production, aligning corporate initiatives with tangible outcomes. It draws on sustainability governance literature and analyzes plastic reduction strategies by industry leaders such as SC Johnson, PepsiCo, Coca-Cola, Borealis, Nestlé, and Unilever. By synthesizing corporate reports and scholarly literature, the research provides an understanding of corporate plastic reduction within the framework of Sustainable Development Goal 14 (SDG 14), which focuses on marine conservation. The study evaluates the alignment of corporate commitments with SDG 14, identifying genuine environmental stewardship and potential greenwashing. It employs three methodologies: transparency, accountability, and science-based …


Implementing Interdisciplinary Sustainability Education With The Food-Energy-Water (Few) Nexus, C. B. Romulo, S. Venkataraman, S. Caplow, S. Ajgaonkar, C. R. Allen, A. Anandhi, S. W. Anderson, C. B. Azzarello, K. Brundiers, E. Blavascunas, J. M. Dauer, D. L. Druckenbrod, E. Fairchild, L. R. Horne, K. Lee, M. Mwale, J. Mischler, E. Pappo, N. S. Patel, N. D. Sintov, C. S. Ramsdell, S. G. Vincent Jan 2024

Implementing Interdisciplinary Sustainability Education With The Food-Energy-Water (Few) Nexus, C. B. Romulo, S. Venkataraman, S. Caplow, S. Ajgaonkar, C. R. Allen, A. Anandhi, S. W. Anderson, C. B. Azzarello, K. Brundiers, E. Blavascunas, J. M. Dauer, D. L. Druckenbrod, E. Fairchild, L. R. Horne, K. Lee, M. Mwale, J. Mischler, E. Pappo, N. S. Patel, N. D. Sintov, C. S. Ramsdell, S. G. Vincent

School of Natural Resources: Faculty Publications

No abstract provided.


Behaviour And Attitudes Of Non‑Resident Water Fowl Hunters In Saskatchewan, M. P. Gruntarod, M. P. Vrtiska, C. J. Chizinski Jan 2024

Behaviour And Attitudes Of Non‑Resident Water Fowl Hunters In Saskatchewan, M. P. Gruntarod, M. P. Vrtiska, C. J. Chizinski

School of Natural Resources: Faculty Publications

No abstract provided.


Snapshot Usa 2021: A Third Coordinated National Camera Trap Survey Of The United States, J. F. Benson Et Al. Jan 2024

Snapshot Usa 2021: A Third Coordinated National Camera Trap Survey Of The United States, J. F. Benson Et Al.

School of Natural Resources: Faculty Publications

No abstract provided.


Perception And Prospects Of Art Of Clothing Maintenance As A Sustainable Fashion, Boiso Maria Owodiong-Idemeko, Adetona Sekinat Ajoke, Udom Owodiong Jan 2024

Perception And Prospects Of Art Of Clothing Maintenance As A Sustainable Fashion, Boiso Maria Owodiong-Idemeko, Adetona Sekinat Ajoke, Udom Owodiong

Textile Society of America: Symposium Proceedings

The study focused on the perception of the art of clothing maintenance and its prospects as a sustainable fashion for consumers in Lagos state. 250 respondents were involved. The study adopted descriptive survey design. Two hypotheses were formulated and a thirty-one (31) item questionnaire was the main instrument used to collect data for the study. The statistical tools used were, percentages, mean and Friedman’s test. The result revealed that, 200 (80%) perceived ripped clothes bring dismay to the wearer, 198 (79%), perceived ripped clothes needed to be reconstructed, 200 (80%) perceived consumers lack practical ability to repair clothes. 241 (96%) …


Environmental Metrics In Action: Exploring U.S. Superfund Sites Affiliated With The Fashion Industry, Nidia K. Trejo Jan 2024

Environmental Metrics In Action: Exploring U.S. Superfund Sites Affiliated With The Fashion Industry, Nidia K. Trejo

Textile Society of America: Symposium Proceedings

Little is known of Superfund sites, long-term clean up sites, affiliated with the apparel and footwear supply chain in the United States. The United States Environmental Protection Agency (US EPA) manages the clean up of contaminated sites that pose a significant risk to human health and the environment under the Superfund program. A site can become contaminated if hazardous waste from industrial operations are mismanaged or dumped into the environment, in an uncontrolled manner. In this study, a proposed Superfund site (Mohawk Tannery in Nashua, New Hampshire), an active Superfund site (Ciba-Geigy Corp. in Toms River, New Jersery), and a …


Changes In Values And Perception Of Life: Natural Disaster Devastates A Mountain Community, Sharifullah Baig, Abida Begum Jan 2024

Changes In Values And Perception Of Life: Natural Disaster Devastates A Mountain Community, Sharifullah Baig, Abida Begum

Professional Development Centre, Gilgit

The mountain communities of Karakorum and the Himalayas in Pakistan are frequently experiencing climate change-induced natural disasters, which are inflicting irreparable losses to their generation's old value system and socio-economic life. Focusing on the value system, this small-scale study explored the change in values and perceptions of a disaster-affected mountain community about natural hazards and its implications for their future lives. Twenty participants from the affected community, including local political activists, religious leaders, teachers, and youth activists, were thoroughly interviewed. The study explored significant deviations from their traditional values of connectedness to each other and with their ancestors' land. The …


Governance Policy Evaluation In The United States During The Pandemic: Nonpharmaceutical Interventions Or Else?, Danlin Yu, Shenyang Guo, Yuanyuan Yang, Linyun Fu, Timothy Mcbride, Ruopeng An Jan 2024

Governance Policy Evaluation In The United States During The Pandemic: Nonpharmaceutical Interventions Or Else?, Danlin Yu, Shenyang Guo, Yuanyuan Yang, Linyun Fu, Timothy Mcbride, Ruopeng An

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

Scientific evidence suggests that nonpharmaceutical interventions (NPIs) effectively curb the spread of COVID-19 before a pharmaceutical solution. Implementing these interventions also significantly affects regular socioeconomic activities and practices of social, racial, and political justice. Local governments often face conflicting goals during policymaking. Striking a balance among competing goals during a global pandemic is a fine science of governance. How well state governments consume the scientific evidence and maintain such a balance remains less understood. This study employs a set of Bayesian hierarchical models to evaluate how state governments in the United States use scientific evidence to balance the fighting against …


Research On Multiscale Openstreetmap In China: Data Quality Assessment With Ewm-Topsis And Gdp Modeling, Chuqiao Han, Binbin Lu, Jianghua Zheng, Danlin Yu, Shudan Zheng Jan 2024

Research On Multiscale Openstreetmap In China: Data Quality Assessment With Ewm-Topsis And Gdp Modeling, Chuqiao Han, Binbin Lu, Jianghua Zheng, Danlin Yu, Shudan Zheng

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

OpenStreetMap (OSM) is a voluntary platform designed to provide free and up-to-date geographic data. Since OSM is based on multisource geographic data provided by the public, the quality of the data has become a concern of researchers. In this study, a unified measure for evaluating OSM data quality was constructed, and the entropy weight method (EWM) and Technique for Order Performance by Similarity to Ideal Solution (TOPSIS) model were used to evaluate the quality of multiscale OSM data in China from 2014 to 2020. In addition to evaluating the data quality, the use of OSM data quality index factors in …


Early Oligocene Record Of An “Iceberg Alley” In The Weddell Sea From Quartz Sand Microtextural Analysis At Odp Site 696, Victoria Hojnacki, Sandra Passchier Jan 2024

Early Oligocene Record Of An “Iceberg Alley” In The Weddell Sea From Quartz Sand Microtextural Analysis At Odp Site 696, Victoria Hojnacki, Sandra Passchier

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

The greenhouse to icehouse transition at the Eocene-Oligocene boundary (34 Ma) marked the appearance of continental-scale glaciation in Antarctica. The material recovered from Ocean Drilling Program Site 696 is the only record spanning this major climatic shift in the Weddell Sea region. Using scanning electron microscopy, quartz microtextures in 13 samples across the Eocene-Oligocene transition were analyzed to understand the degree of glacial modification and the transportation history of the >150 µm material. The quartz grains were visually grouped, characterized, and interpreted by grain outline, relief, and surface microtextures. Glacial textures are present throughout the entire interval (34.4–33.2 Ma), with …


Exploring The Potential Of Openstreetmap Data In Regional Economic Development Evaluation Modeling, Zhe Wang, Jianghua Zheng, Chuqiao Han, Binbin Lu, Danlin Yu, Juan Yang, Linzhi Han Jan 2024

Exploring The Potential Of Openstreetmap Data In Regional Economic Development Evaluation Modeling, Zhe Wang, Jianghua Zheng, Chuqiao Han, Binbin Lu, Danlin Yu, Juan Yang, Linzhi Han

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

In regional development studies, GDP serves as an important indicator for evaluating the developing levels of a region. However, due to statistical methods and possible human-induced interfering factors, GDP is also a commonly criticized indicator for less accurately assessing regional economic development in a dynamic environment, especially during a globalized era. Moreover, common data collection approaches are often challenging to obtain in real-time, and the assessments are prone to inaccuracies. This is especially true in economically underdeveloped regions where data are often less frequently or accurately collected. In recent years, Nighttime Light (NTL) data have emerged as a crucial supplementary …


Behaviour And Attitudes Of Non-Resident Waterfowl Hunters In Saskatchewan, Matthew P. Gruntorad, Mark P. Vrtiska, Christopher J. Chizinski Jan 2024

Behaviour And Attitudes Of Non-Resident Waterfowl Hunters In Saskatchewan, Matthew P. Gruntorad, Mark P. Vrtiska, Christopher J. Chizinski

School of Natural Resources: Faculty Publications

No abstract provided.


Exploring Heterogeneity In Waterfowl Hunter Trip Preferences: A Discrete Choice Experiment, K. A. Sainsbury, H. W. Harshaw, D. C. Fulton, N. W. Cole, A. A. Dayer, J. N. Duberstein, A. H. Raedeke, R. M. Schuster, Mark P. Vrtiska Jan 2024

Exploring Heterogeneity In Waterfowl Hunter Trip Preferences: A Discrete Choice Experiment, K. A. Sainsbury, H. W. Harshaw, D. C. Fulton, N. W. Cole, A. A. Dayer, J. N. Duberstein, A. H. Raedeke, R. M. Schuster, Mark P. Vrtiska

School of Natural Resources: Faculty Publications

No abstract provided.


Outpatient Fall Prevention In Ambulatory Adults 65 Years Old And Over, Dorothy L. Osborne-White Jan 2024

Outpatient Fall Prevention In Ambulatory Adults 65 Years Old And Over, Dorothy L. Osborne-White

Doctor of Nursing Practice (DNP) Scholarly Projects - Archive

Background: In the United States (U.S.), falls are the leading cause of injury among adults 65 and over, resulting in 36 million falls yearly (Moreland et al., 2020). According to the Centers for Disease Control and Prevention (CDC, 2023), one in four older adults experiences a fall each year. Falls are the world's second most prominent cause of accidental deaths (World Health Organization [WHO], 2021). Falls are the leading cause of both fatal and non-fatal injuries among older adults (Moreland et al., 2020).

Methods: A quality improvement project that included a fall bundle was implemented in a primary clinic. A …


Metal Contamination In Household Dust And Their Health Risk Assessment: A Study In Two Malaysian Cities, Xin Yi Lim, Ting Fang Lye, Joo Hui Tay Jan 2024

Metal Contamination In Household Dust And Their Health Risk Assessment: A Study In Two Malaysian Cities, Xin Yi Lim, Ting Fang Lye, Joo Hui Tay

Applied Environmental Research

Investigating the composition of household dust can provide crucial insights into potential environmental and health implications. This study aimed to determine the concentration of selected metals in 30 household floor dust samples collected from two cities in Peninsular Malaysia, namely Melaka and Butterworth. The samples were collected using nylon socks attached to a vacuum cleaner nozzle during January-February 2021. All samples were sieved through a 200-µm sieve, acid-digested with aqua regia, and analyzed using inductively coupled plasma mass spectrometry (ICP-MS). Mean metal concentrations decreased in the order of Fe>Al>Mg>Zn>Mn>Ba>Cu>Cr>Pb. Cd was not …


Adsorption Behavior And Mechanism Of Brilliant Green Dye Onto Acid-Modified Mesoporous Volcanic Pumice, Suchada Sawasdee, Prachart Watcharabundit Jan 2024

Adsorption Behavior And Mechanism Of Brilliant Green Dye Onto Acid-Modified Mesoporous Volcanic Pumice, Suchada Sawasdee, Prachart Watcharabundit

Applied Environmental Research

Water pollution is a major problem in the environment. The important one is the dying effluent from the textile industry. Dye effluent has affected human health and aquatic life. Recently, natural adsorbents have been most commonly used for dye treatment wastewater. This study explores the adsorption mechanism of brilliant green onto HCl-modified pumice. It involves a comparative analysis of the raw and HCl-modified pumice's characterization and adsorption properties. The adsorption experiments were carried out by considering several parameters, such as pH, contact time, initial dye concentrations, and temperatures. The research indicated that the raw and acid-treated pumice possess Si-OH and …


Path Analysis Of The Relationship Between Diarrhea, Climate And Environmental Variables In Province Of West Nusa Tenggara-Indonesia, Khadijah Azhar, Ika Dharmayanti, Dwi Hapsari Tjandrarini, Bambang Wispriyono Jan 2024

Path Analysis Of The Relationship Between Diarrhea, Climate And Environmental Variables In Province Of West Nusa Tenggara-Indonesia, Khadijah Azhar, Ika Dharmayanti, Dwi Hapsari Tjandrarini, Bambang Wispriyono

Applied Environmental Research

Diarrhea is a major cause of morbidity and mortality, particularly in West Nusa Tenggara Province, Indonesia, due to certain factors. Therefore, this study aims to examine the influence of climate, economic status, demographic, water, sanitation, and hygiene factors on diarrhea. The study procedures were carried out using an ecological design that focused on the characteristics of the sample population. The unit of analysis was districts/cities, where data on diarrhea cases from 2017–2020 were used, along with other variables in the same period. The dependent variable was the number of diarrhea cases per month, while the independent variables included average temperature, …


Effective Microorganisms (Em) As Bioremediation Agent Of Profenofos Pesticide Residue In Vegetable Farm Soil From Benguet Province, Philippines, Maylowen P. Lumayna, Paulina A. Bawingan Jan 2024

Effective Microorganisms (Em) As Bioremediation Agent Of Profenofos Pesticide Residue In Vegetable Farm Soil From Benguet Province, Philippines, Maylowen P. Lumayna, Paulina A. Bawingan

Applied Environmental Research

Effective microorganisms (EM) have shown remarkable adaptability and have been used in agriculture and environmental management. This study intended to provide insights into the effectiveness of EM technology in rehabilitating soils contaminated with pesticides. Specifically, the study aimed to determine the efficiency of EM in breaking down the profenofos component of Selecron® 500 EC pesticide in a controlled condition. Results show that the initial profenofos (17.2 mg kg-1) degraded in the control and experimental groups by 94.19% and 96.45%, respectively, over a 21-day laboratory experiment. EM-treated soil samples showed a significant difference from untreated samples, as revealed in the Kruskal-Wallis …


Global Perspectives On Healthcare Waste Management And Bibliographic Mapping During The Crises Of Covid-19, Vasudeo Zambare, Bhushan Bhusare, Lew Christopher, Mohanadoss Ponraj, Nabin Narayan Munankarmi, Mohd Fadhil Md. Din Jan 2024

Global Perspectives On Healthcare Waste Management And Bibliographic Mapping During The Crises Of Covid-19, Vasudeo Zambare, Bhushan Bhusare, Lew Christopher, Mohanadoss Ponraj, Nabin Narayan Munankarmi, Mohd Fadhil Md. Din

Applied Environmental Research

The lack of proper waste management of health care facilities can have a significant negative health impact on the global population. This study provides a critical view on the current state of the existing healthcare waste management practices used in healthcare facilities around the world during the Coronavirus disease 2019 (COVID-19) pandemic outbreak. The increasing amount of COVID-related healthcare waste was analyzed and classified to provide justification for the urgent need to develop waste management standards that ensure safe containment and diversion of hazardous and non-hazardous wastes through recycling, reuse and repurposing. The waste handling, treatment, and disposal management of …


Determinants Of Physicochemical Composition Of Palm Oil Mill Effluent - Implications On Environment And Bio-Digester Treatment Design, E.B. Tambe, A.U. Okonkwo, I.E. Mbuka-Nwosu, C.O. Cookey, E. Agbe, S.C. Onwusa, I.N. Ekpe, U.F. Evuen, J. Okpoghono Jan 2024

Determinants Of Physicochemical Composition Of Palm Oil Mill Effluent - Implications On Environment And Bio-Digester Treatment Design, E.B. Tambe, A.U. Okonkwo, I.E. Mbuka-Nwosu, C.O. Cookey, E. Agbe, S.C. Onwusa, I.N. Ekpe, U.F. Evuen, J. Okpoghono

Applied Environmental Research

Growing need for renewable energy and addressing challenges associated with indiscriminate wastes disposal has necessitated harnessing wastes to wealth. The study investigated parameters determining the physicochemical composition of palm oil mill effluent (POME) generated at Agricultural Development Authority Palm (ADAPALM) and palm oil mills in its catchment communities, located at Ohaji/ Egbema Local Government Area of Imo State, Nigeria and their implications on environmental health and treatment approaches required. Survey research design was used. From a randomly sampled small-scaled mill in each community, and for the lone medium and large-scaled mills, four homogenous samples of POME were collected from sampled …


Typhoon Damage Assessment Of Natural And Planted Mangroves In Bais Bay, Negros Oriental, Philippines, Myron Gavriel F. Baring, Pablina L. Cadiz Jan 2024

Typhoon Damage Assessment Of Natural And Planted Mangroves In Bais Bay, Negros Oriental, Philippines, Myron Gavriel F. Baring, Pablina L. Cadiz

Applied Environmental Research

Category 5 Typhoon Odette, internationally known as Rai, devastated the Central Philippines in December 2021, causing immense damage to the country’s infrastructure, agriculture, and ecosystems. Coastal vegetative ecosystems, which include mangroves, are exposed to strong wind and wave energy during extreme weather events. Considering their importance in providing a myriad of ecosystem services to coastal communities, the post-typhoon assessment of mangroves will serve as a guide to future rehabilitation efforts.  On August 13 and 14, 2024, 8 months after Typhoon Odette, the community structure characteristics (species composition, stem density, basal area, and regeneration potential) and damage severity of planted and …


Addressing The Consumer Food Waste Crisis: A Decade Of Psychological Interventions, Pei ๋Jun Woo, Yohanna Veshanya, Lai Ti Gew Jan 2024

Addressing The Consumer Food Waste Crisis: A Decade Of Psychological Interventions, Pei ๋Jun Woo, Yohanna Veshanya, Lai Ti Gew

Applied Environmental Research

Food waste has become an increasing global crisis, especially in the last few years. Researchers and policymakers have attempted to work towards meeting the Sustainable Development Goals (SDGs) proposed by the United Nations. While much research has been conducted, we are still far from achieving the SDG by 2030. Many interventions have been studied, but each outcome varies. Thus, this review summarizes 30 psychological-based interventions between 2010 to 2022, retrieved via the Scopus database. It is found that each method of intervention works differently based on each type of food waste. Institutional food waste appears to be the most common …


Mapping E-Waste Distribution To Form A Circular Supply Chain – An Investigation On E-Waste Towards Circular Economy In Taiwan, Shu-Hui Hung, Kuan-Wei Tsai Jan 2024

Mapping E-Waste Distribution To Form A Circular Supply Chain – An Investigation On E-Waste Towards Circular Economy In Taiwan, Shu-Hui Hung, Kuan-Wei Tsai

Applied Environmental Research

While there has been a growing number of studies utilizing material flow analysis (MFA) to examine the flow of e-waste, there remains a lack of studies on industrial e-waste circularity in Taiwan. This study employs MFA to examine the annual generation of e-waste by Taiwanese industries, the domestic flow of this waste, the utilization of secondary materials recovered from e-waste, and the spatial distribution of e-waste and its secondary materials. The results reveal that Taiwan generates approximately 50,000 tons of e-waste per year, with waste code E-0221 and the "manufacture of other electronic parts and components" industry being the primary …


Fenton And Photo-Fenton For Treatment Of Red Water Containing Trinitrotoluene: A Comparative Study, Nguyen Trung Dung, Le Thanh Dat, Hoang Thi Tue Minh, Nguyen Phuong Thao, Nguyen Thi Thuy, Nguyen Thi Cam Tien, Nguyen Nhat Huy Jan 2024

Fenton And Photo-Fenton For Treatment Of Red Water Containing Trinitrotoluene: A Comparative Study, Nguyen Trung Dung, Le Thanh Dat, Hoang Thi Tue Minh, Nguyen Phuong Thao, Nguyen Thi Thuy, Nguyen Thi Cam Tien, Nguyen Nhat Huy

Applied Environmental Research

Wastewater originating from the production of TNT explosives (red water) contains special hazardous substances that must be treated before discharging into the water environment. In this study, we applied both conventional Fenton and photo-Fenton (UV-Fenton) processes to treat COD and color in red water. In the Fenton process, the COD and color removal efficiencies were 75.5 and 92.4%, respectively, under optimal operating conditions of pH = 3, [Fe2+] = 0.3 g L-1, H2O2/Fe(Ⅱ) ratio = 10:1, reaction time = 120 min. In the UV-Fenton process, the efficiencies were 76.1 and 94.2%, respectively, under optimal operating conditions of pH = 3, …


Unraveling The Effects Of Arbuscular Mycorrhizal Fungi On Plant Growth, Nutrient Content, And Heavy Metal Accumulation In The Contaminated Soil: A Meta-Analysis, Bela Putra, Anuraga Jayanegara, Irwan Susanto Jan 2024

Unraveling The Effects Of Arbuscular Mycorrhizal Fungi On Plant Growth, Nutrient Content, And Heavy Metal Accumulation In The Contaminated Soil: A Meta-Analysis, Bela Putra, Anuraga Jayanegara, Irwan Susanto

Applied Environmental Research

This study evaluated the effects of arbuscular mycorrhizal fungi (AMF) on plant growth, nutrient uptake, and heavy metal accumulation on polluted land using a meta-analysis approach. Data from 33 relevant studies were selected based on inclusion criteria, specifically articles in English, observational research, and investigating the role of AMF in plant growth and productivity on polluted land. The results showed that plants inoculated with AMF experienced significant accumulation of heavy metals in roots, such as Pb (p<0.01), Ni (p<0.01), Cr (p<0.01), Mn (p<0.05), Fe (p<0.05), and As (p<0.05). The AMF significantly reduced the accumulation of heavy metals such as Cr, Ni, Fe, and Cu on the upper part of fodder forage (p<0.01). Forage growth was also enhanced due to AMF. The AMF greatly increased the fresh weight, length, and phosphorus (P) content of fodder forage roots (p<0.01). It also increased the plant's biomass, fresh weight, dry weight, height, nitrogen (N), phosphorus (P), and potassium (K) contents (p<0.01). In conclusion, AMF is important in increasing plant growth, nutrient uptake and reducing heavy metal accumulation in forage on polluted land.


Numerical Dose Assessment And Short-Term Radioactivity Impact On Foodstuff For Continuous Release From Of Triga Mark Ii Research Reactor, Ahmed Dahia, Amel Dadda, Amina Lyria Cheridi Deghal, Abdellah Bouam Jan 2024

Numerical Dose Assessment And Short-Term Radioactivity Impact On Foodstuff For Continuous Release From Of Triga Mark Ii Research Reactor, Ahmed Dahia, Amel Dadda, Amina Lyria Cheridi Deghal, Abdellah Bouam

Applied Environmental Research

This work is a contribution to the assessment of the radiological consequences of radioactivity and radiation dose for TRIGA Mark II research reactor during continuous operation. The potential release to the atmosphere of 131I, 137Cs, and 90Sr are computed in the South direction is calculated using CROM software. We have attempted to evaluate the daily concentration of radioactivity and its impact on foodstuff. The annual average dose received from internal and external irradiation by age group through the different pathways were also considered. The simulation results showed that the highest air concentration was found at 225 m distance from the …


Ball-Milled Biochar From Waste Bamboo Chopsticks: A Potential Adsorbent For Methylene Blue Removal, Nguyen Trung Hiep, Hoang Thi Thuy Hoa, Thai Phuong Vu Jan 2024

Ball-Milled Biochar From Waste Bamboo Chopsticks: A Potential Adsorbent For Methylene Blue Removal, Nguyen Trung Hiep, Hoang Thi Thuy Hoa, Thai Phuong Vu

Applied Environmental Research

Waste bamboo chopsticks encounter limited recycling. Several treatment procedures necessitate sophisticated technologies and intricate processes that need more practicality for local-scale production, leading to substantial challenges in effectively repurposing waste from disposable bamboo chopsticks. In this research, waste bamboo chopsticks were used as raw materials for the production of ball-milled biochar (BM-WBCB). FTIR, SEM, and BET were among the numerous analytical methods used to describe the BM-WBCB. The outcomes showed that the surface was made up of hollow, porous structures. In addition, the pHpzc value of the biochar was 8.7, and it had a BET-specific surface area (273.11 m2 g-1). …