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Articles 1081 - 1110 of 21777
Full-Text Articles in Engineering
A Reputation System For Provably-Robust Decision Making In Iot Blockchain Networks, Charles C. Rawlins, Sarangapani Jagannathan, Venkata Sriram Siddhardh Nadendla
A Reputation System For Provably-Robust Decision Making In Iot Blockchain Networks, Charles C. Rawlins, Sarangapani Jagannathan, Venkata Sriram Siddhardh Nadendla
Electrical and Computer Engineering Faculty Research & Creative Works
Blockchain systems have been successful in discerning truthful information from interagent interaction amidst possible attackers or conflicts, which is crucial for the completion of nontrivial tasks in distributed networking. However, the state-of-the-art blockchain protocols are limited to resource-rich applications where reliably connected nodes within the network are equipped with significant computing power to run lottery-based proof-of-work (pow) consensus. The purpose of this work is to address these challenges for implementation in a severely resource-constrained distributed network with internet of things (iot) devices. The contribution of this work is a novel lightweight alternative, called weight-based reputation (wbr) scheme, to classify new …
Application Of The Immobilized Low-Activity Waste Glass Corrosion Model To The Static Dissolution Of 24 Statistically-Designed Alkali-Borosilicate Waste Glasses, Sebastien N. Kerisit, James J. Neeway, Charmayne E. Lonergan, Benjamin Parruzot, Jarrod V. Crum, Richard C. Daniel, Gary L. Smith, R. Matthew Asmussen
Application Of The Immobilized Low-Activity Waste Glass Corrosion Model To The Static Dissolution Of 24 Statistically-Designed Alkali-Borosilicate Waste Glasses, Sebastien N. Kerisit, James J. Neeway, Charmayne E. Lonergan, Benjamin Parruzot, Jarrod V. Crum, Richard C. Daniel, Gary L. Smith, R. Matthew Asmussen
Materials Science and Engineering Faculty Research & Creative Works
Glass corrosion models that capture the complex mechanisms of the glass-water reaction enable the prediction of nuclear waste glass durability in disposal scenarios. Parameterization of such models is challenging because of the need to capture changes in corrosion behavior with time, reaction conditions, and glass composition. Here, we describe and employ the ILAW (immobilized low-activity waste) glass corrosion model (IGCM) in geochemical simulations of static dissolution tests, at two temperatures (40 °C and 90 °C), for a matrix of 24 enhanced low-activity waste (eLAW) glasses statistically designed to cover a processable composition space defined by 8 major glass components (Al …
Decoding Crystallization Behavior Of Aluminoborosilicate Glasses: From Structural Descriptors To Quantitative Structure – Property Relationship (Qspr) Based Predictive Models, Yingcheng Zhang, Marco Bertani, Alfonso Pedone, Randall E. Youngman, Gregory Tricot, Aditya Kumar, Ashutosh Goel
Decoding Crystallization Behavior Of Aluminoborosilicate Glasses: From Structural Descriptors To Quantitative Structure – Property Relationship (Qspr) Based Predictive Models, Yingcheng Zhang, Marco Bertani, Alfonso Pedone, Randall E. Youngman, Gregory Tricot, Aditya Kumar, Ashutosh Goel
Materials Science and Engineering Faculty Research & Creative Works
Successful decoding of structural descriptors controlling the crystallization in multicomponent functional glasses can pave the way for the transition from the trial-and-error approach and empirical modeling for glass/glass-ceramic composition design toward more rational and scientifically rigorous Quantitative Structure-Property Relationship (QSPR) based models. However, due to the compositional and structural complexity of multicomponent glasses and the longer time and length scales associated with nucleation, the development and validation of QSPR models are still in it's infancy. The work presented in the article is an attempt to leap forward in this pursuit by combining the strengths of experimental and computational materials science …
Seeding Effects Of Submicron Caal-No3 Ldh Particles On The Hydration And Properties Of Portland Cement And Sulfoaluminate Cement Pastes, Sukanta K. Mondal, Monday Uchenna Okoronkwo
Seeding Effects Of Submicron Caal-No3 Ldh Particles On The Hydration And Properties Of Portland Cement And Sulfoaluminate Cement Pastes, Sukanta K. Mondal, Monday Uchenna Okoronkwo
Chemical and Biochemical Engineering Faculty Research & Creative Works
Layered Double Hydroxide (LDH) Is Reported To Improve The Durability Of Concretes, Primarily Due To Its Ability To Exchange Anionic Species, Including Chloride, Which Is Implicated In Corrosion-Driven Durability Issues. However, There Is No Comprehensive Study Investigating The Effect Of LDH On The Properties Of Different Cement Systems At Both Early And Mature Ages. In This Study, The Early Age And Mature Age Properties Of Portland Cement (OPC) And Calcium Sulfoaluminate (CSA) Cement Pastes Seeded With Submicron-Sized Calcium Aluminum-NO3 LDH (CaAl-NO3 LDH) Were Investigated. The Effects Of The 1–5%mass Dosage Of LDH On The Hydration Of Both Cement Systems Were …
Seeding Effects Of Submicron Caal-No3 Ldh Particles On The Hydration And Properties Of Portland Cement And Sulfoaluminate Cement Pastes, Sukanta K. Mondal, Monday Uchenna Okoronkwo
Seeding Effects Of Submicron Caal-No3 Ldh Particles On The Hydration And Properties Of Portland Cement And Sulfoaluminate Cement Pastes, Sukanta K. Mondal, Monday Uchenna Okoronkwo
Chemical and Biochemical Engineering Faculty Research & Creative Works
Layered double hydroxide (LDH) is reported to improve the durability of concretes, primarily due to its ability to exchange anionic species, including chloride, which is implicated in corrosion-driven durability issues. However, there is no comprehensive study investigating the effect of LDH on the properties of different cement systems at both early and mature ages. in this study, the early age and mature age properties of Portland cement (OPC) and calcium sulfoaluminate (CSA) cement pastes seeded with submicron-sized calcium aluminum-NO3 LDH (CaAl-NO3 LDH) were investigated. the effects of the 1–5%mass dosage of LDH on the hydration of both cement systems were …
Assessing Hydrolysis Performance Of Ce(Oh)4@Pim-1 Composites Functionalized With Amidoxime, Aldoxime, And Carboxylate Groups Toward Dimethyl 4-Nitrophenylphosphonate, A Nerve Agent Simulant, Peter O. Aina, Sukanta K. Mondal, Ali A. Rownaghi, Fateme Rezaei
Assessing Hydrolysis Performance Of Ce(Oh)4@Pim-1 Composites Functionalized With Amidoxime, Aldoxime, And Carboxylate Groups Toward Dimethyl 4-Nitrophenylphosphonate, A Nerve Agent Simulant, Peter O. Aina, Sukanta K. Mondal, Ali A. Rownaghi, Fateme Rezaei
Chemical and Biochemical Engineering Faculty Research & Creative Works
In recent years, significant attention has been directed toward evaluating the reactivity of diverse polymers to gauge their catalytic activity against hazardous chemicals. Among these polymers, pim-1 has emerged as an exceptional candidate due to its noteworthy attributes including high surface area, excellent solubility, and the capability to fine-tune the nitrile functional groups along its polymeric backbone. In this study, we explored the impact of different functional groups, such as amidoxime (ax), aldoxime (ox), and carboxylate (cooh), on the degradation of dimethyl 4-nitrophenylphosphonate (dmnp) in comparison to pure pim-1 and their respective ce(oh)4-loaded polymer composites. Remarkably, the pim-1-ax analog exhibited …
The Application Of Poly-Ε-Caprolactone Nanoparticles For Endotoxin Removal, Mikaela Ritchie
The Application Of Poly-Ε-Caprolactone Nanoparticles For Endotoxin Removal, Mikaela Ritchie
Undergraduate Research Conference at Missouri S&T
Lipopolysaccharides (LPS), also known as endotoxins, are toxins released from the cell walls of gram-negative bacteria upon their death. Ingestion of LPS by humans or animals can initiate inflammatory immune responses, resulting in blood vessels dilation, organ dysfunction and potential death. These toxins contaminate a variety of manufacturing processes from the pharmaceutical industry to animal feed production, posing a risk to humans and animals alike. This study details the production of PCL nanoparticle capable of removing LPS from water and a preliminary analysis of the removal efficiency. The outcomes of this research hold significant implications for industries reliant on bacterial …
Using Efficient Global Optimization With Cfd For Aerodynamic Optimization, Aaron Spillars, Nathan Roberts, Xiaoping Du
Using Efficient Global Optimization With Cfd For Aerodynamic Optimization, Aaron Spillars, Nathan Roberts, Xiaoping Du
Undergraduate Research Conference at Missouri S&T
Machine learning and optimization are the stepping blocks in broad engineering areas, such as computational fluid dynamics (CFO) and CFO-based design optimization. Using the CFO-based optimization framework, MACH-Aero, we were able to use the SLSQP optimizer and compared the results with a reference case completed by the SNOPT optimizer. Results verified that our SLSQP optimizer was working properly. The solver created showed that our objective function had a difference in magnitude of 0.000019 allowing us to conclude that our solver was working as intended. However, there were several failed attempts before reaching a successful run that gave us a satisfactory …
Lung Cancer Drug Study Using Alc Nanoparticles, Noah Sparks
Lung Cancer Drug Study Using Alc Nanoparticles, Noah Sparks
Undergraduate Research Conference at Missouri S&T
In a previous project it was determined ALC polarized lipid nanoparticles have a high transfection efficiency in some lung cancer cell lines. Building off this information, these ALC particles will now be tested with an actual lung cancer drug. This process will consist of searching articles for promising lung cancer drugs and selecting one for use. The ALC particles will then undergo a comprehensive drug study using multiple lung cancer cell lines with the selected drug. Aspects such as drug release rate, transfection rate, cytotoxicity, etc. will be determined. The goal is to determine whether ALC nanoparticles show real promise …
Uncertainty Quantification Of Thermal Capacitance Calorimeter For High-Enthalpy Flows, Logan Banker, Davide Vigano
Uncertainty Quantification Of Thermal Capacitance Calorimeter For High-Enthalpy Flows, Logan Banker, Davide Vigano
Undergraduate Research Conference at Missouri S&T
Thermal capacitance calorimeters are the standard instrument used to measure cold wall heat fluxes in high-enthalpy flows that simulates hypersonic flight conditions. These instruments play a fundamental role in the development and testing of Thermal Protection Systems for space re-entry conditions. However, despite their rugged and simple design, they are affected by large uncertainty errors. These have been estimated in literature at 15%. Despite their importance, and large errors, no proper uncertainty analysis has been performed. Uncertainty analysis is difficult due to the complex physics of the environment these calorimeters have to operate into.
Analysis Of The Benefits And Risks Of Just In Time Inventory Management, Ian Hodge
Analysis Of The Benefits And Risks Of Just In Time Inventory Management, Ian Hodge
Undergraduate Research Conference at Missouri S&T
Just in time (JIT) inventory management has become increasingly popular in industry due to its well known benefits. JIT aims to streamline inventory processes by minimizing excess stock, reducing holding costs, and improving operational efficiency overall. This approach introduces inherent risks, by minimizing the safety stock the company becomes more vulnerable to supply chain disruptions. If unexpected circumstances lead to a supply delay, the company will rapidly deplete their supplies and may have to cease operations until they are resupplied, resulting in decreased revenue and leaving customers unfulfilled.This research project will examine case studies of companies that adopted JIT methodology …
Thermo-Gravimetric Analysis Of Variables Of Oxidization, Clark Nguyen, Mario F. Buchely
Thermo-Gravimetric Analysis Of Variables Of Oxidization, Clark Nguyen, Mario F. Buchely
Undergraduate Research Conference at Missouri S&T
Oxidation phenomena play a critical role in high temperature metallurgical processing and the performance during life cycle of components made of both high and low alloy steels. Therefore, the development of a precise experimental methodology to quantify oxidation processes is critically important. This report summarizes my experimental study of the oxidation behavior of high and low alloy steel, including kinetics of surface oxide layer formation and spallation. The focus of study was in determining the complex interactions between alloying elements in steel matrix and oxidation environment, composition and surface morphology of formed oxides. This report will also explore how the …
Development Of A Force Perturbation Handle For Physical Interaction Research In Humans, Henry Tien, Riley Still, Yun Seong Song
Development Of A Force Perturbation Handle For Physical Interaction Research In Humans, Henry Tien, Riley Still, Yun Seong Song
Undergraduate Research Conference at Missouri S&T
The vision of developing more advanced robots that physically interact with people begins with the study of how people interact with each other. Even the simplest interactions between humans, such as shaking hands, provides tremendous challenges for current robots and minimal research has been conducted on the inner workings of these interactions. Understanding the process and mechanics behind effective and intuitive physical human-human interaction (pHHI) will yield meaningful insight into designing robots capable of assisting the elderly, operating side by side with workers, or even dancing with people. To study this process, a custom Force Perturbation Handle (FPH) was developed, …
Biosensors For Antibacterial Medical Applications, Ryan Fagan, Shelby Wallen
Biosensors For Antibacterial Medical Applications, Ryan Fagan, Shelby Wallen
Undergraduate Research Conference at Missouri S&T
Healthcare associated infections are significant concern in medicine and as antibiotics are becoming less effective, we need new alternative methods to treat them. We are testing various materials that can be used to prevent infections in healthcare settings and in wound treatments. These materials include bioactive glass and modified hydrogel materials. From these studies we've learned these are effective in killing bacteria and preventing infections. The goal of this project is to determine the mechanism at which these materials kill bacteria. Our approach is to construct biosensor strains that can indicate bacterial stress response to antimicrobial agents. We have used …
The Aerodynamic Levitator Project, Noah Brown
The Aerodynamic Levitator Project, Noah Brown
Undergraduate Research Conference at Missouri S&T
After the development and successful demonstration of a hyperbaric aerodynamic levitator, work to redesign the nozzle was proposed for increasing levitation height and stability. The goal of this eight-week summer research project was to create a CFD model to aid in the optimization of this nozzle. This was to be accomplished by using ANSYS Fluent to first replicate experimental data found in a research paper to assess its validity. Next, the model was to be modified for use on the levitator project and then used to analyze the current nozzle design. Afterwards, Steps will be taken to make alterations to …
Supersonic Wind Tunnel Modeling, Noah Cain, Davide Vigano
Supersonic Wind Tunnel Modeling, Noah Cain, Davide Vigano
Undergraduate Research Conference at Missouri S&T
Supersonic wind tunnels are essential for high-speed aerodynamics research, allowing studies ranging from fundamental flow physics to the advancement of supersonic transport. This work presents a physics-based model developed for the Missouri S& T supersonic wind tunnel, a blow-down facility employing a converging-diverging nozzle to achieve high-speed flow. The model accounts for real gas effects, including Joule-Thomson phenomena, as well as predictions of pressure losses and heat transfer. Implemented in Matlab, the model's accuracy was validated through comparison with experimental measurements, demonstrating excellent agreement. This research contributes to the reliable prediction of supersonic wind tunnel performance, thus advancing the understanding …
Organic Contaminant Effects On The Mac Of Water, Jordan Hartfield
Organic Contaminant Effects On The Mac Of Water, Jordan Hartfield
Undergraduate Research Conference at Missouri S&T
The evaporation or condensation rate of a liquid surface is directly proportional to the mass accommodation coefficient (MAC). Since the MAC is difficult, if not impossible, to experimentally measure, molecular dynamics (MD) simulations have been employed to study it. Experimental studies have shown that airborne hydrocarbon contaminants from a variety of sources can adsorb on liquid surfaces and significantly alter the surface properties. We have therefore studied the effects of organic surface contaminants, which are immiscible with water, on the MAC using equilibrium and nonequilibrium MD simulations. Our equilibrium MD simulation results show that the MAC decreases linearly with increases …
Tnt Equivalence: Measuring, Validating, And Appending Binary Energetics To The Literature, Gracie Mae James, Rachel Bauer, Alexander Douglas, Catherine E. Johnson
Tnt Equivalence: Measuring, Validating, And Appending Binary Energetics To The Literature, Gracie Mae James, Rachel Bauer, Alexander Douglas, Catherine E. Johnson
Undergraduate Research Conference at Missouri S&T
TNT equivalency is a standard used to measure and quantify the effects of energetic materials. Using these equivalencies, the safety factors for minimum distances and storage of explosives are determined. Having a known TNT equivalence of energetic materials also helps estimate potential blast damage and risks for individuals. The TNT equivalencies for numerous energetic materials, such as binaries, have no published values, but are regularly used in industry, military, and research testing. To determine TNT equivalence, three tests were performed: 1) a plate dent test for direct dent comparison, 2) air blast tests to measure air overpressure and calculate impulse, …
Ionizable Lipid Nanoparticles Fabrication For Gene Delivery, Noah Sparks, Lei Xu, Hu Yang
Ionizable Lipid Nanoparticles Fabrication For Gene Delivery, Noah Sparks, Lei Xu, Hu Yang
Undergraduate Research Conference at Missouri S&T
In this project ionizable lipids were analyzed for their efficacy in delivery of mRNA in multiple metastatic lung cancer cells. Different ionizable lipids with their molar ratio in making the LNPs were analyzed in order to enhance the nucleic acid delivery to cytoplasm. Phospholipids also play a role in targeting efficacy of the LNPs to the lung cells. Different combination of ionizable lipids with multiple phospholipids were studied for physical characterization and in-vitro transcription efficiency. Transcription efficiency was then quantified using flow cytometry and optimal particles for transcription were noted.
Data Driven Enhanced Vsg Control For Microgrids, Sophia A. Strathman, Oroghene Oboreh-Snapps, Jonathan W. Kimball
Data Driven Enhanced Vsg Control For Microgrids, Sophia A. Strathman, Oroghene Oboreh-Snapps, Jonathan W. Kimball
Undergraduate Research Conference at Missouri S&T
This research explores the fusion of deep reinforcement learning and virtual synchronous generator control in a bid to enhance microgrid operations. Microgrids typically consist of multiple inverter-based distributed generators (IBDGs) connected in parallel to mismatched line impedances. This results in unequal reactive power sharing which negatively impacts the performance of IBDGs in microgrids. To achieve enhanced control, a solution utilizing deep reinforcement learning (DRL) is proposed. DRL agents are trained to control variables in each IBDG using a well-designed reward function capable of achieving the following objectives: 1.) ensure output voltage of each IBDG remains within the designated operating boundary …
Phytoremediation Of Nonpoint Source Pollution, Tylor Cheatham
Phytoremediation Of Nonpoint Source Pollution, Tylor Cheatham
Undergraduate Research Conference at Missouri S&T
Stormwater can bring high concentrations of nutrients into urban ponds resulting in eutrophic conditions and subsequent algal blooms. These 91 blooms can lead to hypoxic water that will ultimately cause fish deaths and loss of recreation. Often, the majority of urban stormwater flows into local ponds through an inlet, which provides a target area for nutrient removal methods. One method being explored by researchers is the use of floating treatment wetlands (FTWs). FTWs are floating mats with plants anchored to them, allowing the roots to be suspended in the water column for nutrient removal. Our previous research focused on optimizing …
Tnt Equivalence Of Binary Energetics, Gracie Mae James
Tnt Equivalence Of Binary Energetics, Gracie Mae James
Undergraduate Research Conference at Missouri S&T
TNT equivalency is a standard used to measure and quantify the effects of energetic materials. Using these equivalencies, the safety factors for minimum distances and storage of explosives are determined. Having a known TNT equivalence of energetic materials also helps estimate potential blast damage and risks for individuals. The TNT equivalencies for numerous energetic materials, such as binaries, have no published values, but are regularly used in industry, military, and research testing. To determine TNT equivalence, three tests will be performed: 1) a plate dent test, 2) air blast tests to measure air overpressure and calculate impulse, and 3) velocity …
Thermogravimetric Analysis Of High & Low Alloy Steel, Clark Nguyen
Thermogravimetric Analysis Of High & Low Alloy Steel, Clark Nguyen
Undergraduate Research Conference at Missouri S&T
Oxidation phenomena play a critical role in high temperature metallurgical processing and the performance during life cycle of components made of both high and low alloy steels. Therefore, the development of a precise experimental methodology to quantify oxidation processes is critically important. This report summarizes my experimental study of the oxidation behavior of high and low alloy steel, including kinetics of surface oxide layer formation and spallation. The focus of study was in determining the complex interactions between alloying elements in steel matrix and oxidation environment, composition and surface morphology of formed oxides. This report will also explore how the …
Quantifying Asphalt Binder Uv Effects With Relaxometry, Rosalee Brown
Quantifying Asphalt Binder Uv Effects With Relaxometry, Rosalee Brown
Undergraduate Research Conference at Missouri S&T
Asphalt deterioration involves many physical and chemical changes caused by environmental factors such as automotive strain, extreme heat, and UV exposure. Asphalt binder assessment in the industry is currently based on structurally destructive testing methods and tests of physical performance without accounting for chemical structure. An emerging evaluation of asphalt binder uses relaxometry, a field of nuclear magnetic resonance (NMR) spectroscopy, to directly observe how asphalt binder is changed by causes of deterioration such as UV exposure. NMR relaxometry explores nuclear spins' interactions with their environment. This noninvasive method can provide a detailed view into the chemical environment of virgin …
Water Quality Profiles In Two Rolla Ponds: Implications For Nutrient Management, Tylor Cheatham
Water Quality Profiles In Two Rolla Ponds: Implications For Nutrient Management, Tylor Cheatham
Undergraduate Research Conference at Missouri S&T
Eutrophication of aquatic ecosystems is a growing global issue due to anthropogenic inputs. One of the main issues associated with eutrophication is fish death. Eutrophic waters can lead to algal blooms, resulting in hypoxic conditions where there is not enough oxygen to support the oxygen-breathing organisms like fish. This can happen in lakes or where rivers meet the ocean. These hypoxic conditions are a concern for lake managers and people who make a living fishing in waters that are now experiencing fish death. One method to target the oxygen levels in lakes is adding aerators. Because of how dynamic ecosystems …
Experiential Learning In Rf Circuit Design, Benjamin Cuebas
Experiential Learning In Rf Circuit Design, Benjamin Cuebas
Undergraduate Research Conference at Missouri S&T
This research project will explore the intricacies of Radio Frequency (RF) circuitry design, demonstrating acquired insights by constructing a discrete RF amplifier with digital input attenuation control. The study will delve into a multitude of RF topics such as serial communication, digital data storage, transmission line theory, impedance matching, network parameters, amplifier classes, and Smith chart analysis. The RF amplifier will be designed to have an approximately 15dB input gain/attenuation digitally controlled by an external microcontroller. The device will operate at 50 MHz, in the VHF frequency range, with an input and output impedance of 50 . A network analyzer …
Density Fluctuations Measurements In Supersonic Flows, Allie Dingfield, Davide Vigano
Density Fluctuations Measurements In Supersonic Flows, Allie Dingfield, Davide Vigano
Undergraduate Research Conference at Missouri S&T
Turbulence in compressible flows plays a major role in a variety of aerospace applications. However, due to fluctuating thermodynamic quantities, compressible turbulence is challenging to analyze. Of these quantities, density fluctuations are of high importance due to their role in describing turbulence. A method to obtain quantitative measurements of density fluctuations has been developed using the optical technique of shadowgraph imaging. Shadowgraph imaging has frequently been used to obtain qualitative information about density gradients in fluids. However, quantitative application of these methods is much less common. The quantitative shadowgraph method presented here relates the light intensity variations in an image …
Turbulence Characterization For Supersonic Wind Tunnel, Allie Dingfield
Turbulence Characterization For Supersonic Wind Tunnel, Allie Dingfield
Undergraduate Research Conference at Missouri S&T
Turbulence in compressible flows holds significant importance across various applications, such as optimizing air/fuel mixing in scramjet combustors. However, managing compressible turbulence presents distinct challenges compared to incompressible flows, as fluctuations extend to thermodynamic quantities, including density. Density fluctuations notably influence the production term of Turbulent Kinetic Energy (TKE). Despite advancements in velocity measurements, particularly in supersonic flows, density measurement remains inherently complex. This study focuses on further refining a turbulence density measurement technique utilizing shadowgraph imaging, tailored for application in the recently upgraded Missouri S& T supersonic wind tunnel. The developed technique will enable the student to quantify turbulent …
Analysis Of 1,4 Dioxane In Plants, Briannah Spisak
Analysis Of 1,4 Dioxane In Plants, Briannah Spisak
Undergraduate Research Conference at Missouri S&T
Missouri S& T collaborates with University of Iowa on projects to identify the presence of 1,4 Dioxane in tree core samples. The research group will replicate the situation in smaller reactors on campus. The following materials will be used: conetainers, willow cuttings, biochar, and perlite. The plants will be dosed with 1,4-Dioxane and analyzed with Gas ChromatographyMass Spectrometry (GCMS). Plant growth and health will be monitored and related to growth conditions and pollutant exposure. Larger mesocosms will be dosed over the summer and will have in-planta analysis as well. To replicate the field site, exact biochar and perlite from the …
Floating Treatment Wetlands For Zinc Phytoremediation, Grace Duong
Floating Treatment Wetlands For Zinc Phytoremediation, Grace Duong
Undergraduate Research Conference at Missouri S&T
Stormwater pollution from urban and mining areas can pose challenges to downstream waters because of zinc contamination. Floating treatment wetlands (FTWs) have demonstrated the ability to mitigate nutrient and metal contamination. To investigate the effectiveness of native Missouri plants in FTWs, fourteen 10-liter mesocosms were constructed, dosed with nutrients, and placed in a greenhouse. Four mesocosms acted as controls, five contained pickerelweed, and five contained palm sedge. After one week of acclimation, mesocosms were dosed with ZnCl2 in concentrations of 0, 5, and 10 mg/L of zinc. Objectives of this study include characterizing zinc immobilization and assessing both pickerelweed and …