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2017 Eurēca Winners, Office Of Undergraduate Research May 2018

2017 Eurēca Winners, Office Of Undergraduate Research

EURēCA: Exhibition of Undergraduate Research and Creative Achievement

List of awardees


Recycled Substrates: Plant Biomass And Plant Cover Correlation, Richard K. Sutton May 2018

Recycled Substrates: Plant Biomass And Plant Cover Correlation, Richard K. Sutton

Landscape Architecture Program: Faculty Scholarly and Creative Activity

Green roofs extend roof membrane life and reduce waste to landfills. However, green roof costs must be reduced if their benefits are to accrue more widely. Use of recycled materials may reduce costs and also keep those materials out of landfills. Some work has been done on use of local recycled materials for green roof substrates, but none describe the characteristics, proportions and results of using an entire suite of blended recycled materials in admixtures (i.e., mixtures of very different materials) such as crumb rubber (CR), crushed used brick (CB) and compost (CPT) in concert with greens grade sand ...


Novel Treatments For Native Forb Restoration In The Great Basin, Adam J. Fund May 2018

Novel Treatments For Native Forb Restoration In The Great Basin, Adam J. Fund

All Graduate Theses and Dissertations

Public land management agencies, conservation organizations, and landowners are interested in expanding the diversity of plant species used in rangeland restoration seedings. While the restoration of native grasses and shrubs in the Great Basin has become increasingly successful, restoration of native forbs continues to be problematic. In the Great Basin, soil water availability and soil fungal pathogens are thought to limit to restoration success. During the course of two years, we conducted two field experiments at three sites in the Great Basin that spanned a latitudinal gradient encompassing different precipitation and temperature patterns.

In the first experiment, we evaluated two ...


Degradation Of Orange G Through Persulfate Activated Nanoscale Zerovalent Iron Composites And Boron-Doped Diamond Electrodes, Suzana Ivandic May 2018

Degradation Of Orange G Through Persulfate Activated Nanoscale Zerovalent Iron Composites And Boron-Doped Diamond Electrodes, Suzana Ivandic

Chemical Engineering Undergraduate Honors Theses

Properly treated wastewater is necessary for water reuse and to avoid unnecessary impacts on the environment. The poultry industry utilizes large amounts of water for poultry processing. The need for innovative ways to treat organic contaminants in the poultry wastewater industry is especially necessary due to increased poultry consumption. The U.S. Department of Agriculture projected Americans would consume approximately 92 pounds of chicken per person in 2017.1 Dissolved air flotation (DAF) is currently used in poultry wastewater treatment, but DAF does not remove organic contaminants efficiently per effluent standards. Implementation of processes that degrade contaminants directly would benefit ...


Synthesis And Characterization Of Biodiesel Fuels From Furfuryl Alcohol And Spent Coffee Grounds, Amanda Raley May 2018

Synthesis And Characterization Of Biodiesel Fuels From Furfuryl Alcohol And Spent Coffee Grounds, Amanda Raley

Electronic Theses and Dissertations

ABSTRACT

Biodiesel can be synthesized using several different triacylglycerides, alcohols, and catalysts. In this study, fatty acid methyl esters (FAMEs) and fatty acid ethyl esters (FAEEs) were produced from their respective alcohols and coffee oil, using either a basic (K2CO3) catalyst or an acidic catalyst (H2SO4). Fatty acid furfuryl esters (FAFurEs) were produced using commercially-purchased cooking oils (canola, olive, corn, sunflower, and peanut) with furfuryl alcohol, a basic (K2CO3) catalyst, a co-solvent (THF), and an ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate). All samples were produced using either conventional heating methods (CH) or microwave-assisted ...


Performance Assessment Of Solid State Anaerobic Digestion Of Poultry Litter, Mason Puckett May 2018

Performance Assessment Of Solid State Anaerobic Digestion Of Poultry Litter, Mason Puckett

Biological and Agricultural Engineering Undergraduate Honors Theses

The disposal of poultry litter can exert an economic and environmental burden to the agriculture community. As a result, it is desirable to reduce the amount of waste and recover resources from the waste. This study focuses on the construction and preliminary testing of a laboratory scale (20 L) solid state anaerobic digester (AD) fed with dry poultry litter. Glucose was added in addition to the poultry litter to achieve the appropriate C:N ratio to support the growth of anaerobic microorganisms. The AD was first fed every 4 days at 4 g VS/L/feeding for 24 days, rested ...


Wastewater Refining And Reuse And City-Level Water Decision Making, Ahmed Abuhussein Apr 2018

Wastewater Refining And Reuse And City-Level Water Decision Making, Ahmed Abuhussein

Electronic Thesis and Dissertation Repository

Direct discharge of treated and untreated wastewater to natural surface water bodies, including rivers and lakes, is generally known to produce adverse environmental impacts that have been of concern for the past 10–15 years, particularly in the Great Lakes basin. Examples of these impacts include eutrophication and the emergence of pharmaceuticals and personal care products (PPCPs). Advancement in wastewater treatment plant operations alone may not be feasible to meet the 2016–2019 Federal Sustainable Development Strategy (FSDS), especially on phosphorus reduction targets. Diverting treated wastewater to land could present a multibarrier approach for integrated PPCPs management, and could also ...


Construction Of A Pen-Scale Methane Collection System And Dietary Strategies For Methane Mitigation From Growing And Finishing Cattle, Thomas Winders Apr 2018

Construction Of A Pen-Scale Methane Collection System And Dietary Strategies For Methane Mitigation From Growing And Finishing Cattle, Thomas Winders

Theses and Dissertations in Animal Science

Methane production from ruminants has been researched for many years because it has a global warming potential 25x that of carbon dioxide, meaning that mitigating smaller amounts of methane can have a large environmental impact. Research has focused on individual animal methane measurements, but the literature lack in industry-scale measurements. For that reason, the methane barn was built to evaluate dietary strategies on pens of cattle rather than on individual animals. In order to test the methane barn capabilities, an experiment designed to produce differences in methane production was conducted. Cattle received the same growing diet, at either ad-libitum access ...


Effect Of Increasing Levels Of Monosilicic Acid On Arsenic And Phorsphorus Sorption In Soil, Flávia Bastos Agostinho Apr 2018

Effect Of Increasing Levels Of Monosilicic Acid On Arsenic And Phorsphorus Sorption In Soil, Flávia Bastos Agostinho

LSU Doctoral Dissertations

Arsenic (As) accumulation in rice (Oryza sativa) grains has increased human’s daily intake. Studies have shown that arsenite is taken up through known silicon (Si) transporters in rice. Moreover, the availability of As in soil is affected by chemically similar ligands that have high affinity to oxides surfaces, such as Si and phosphorus (P). Studies were conducted to: (I) investigate the role of elevated levels of Si on the concentration of different As fractions in soil and on As uptake by rice; (II) evaluate the effect of increasing monosilicic acidconcentrations on As sorption and kinetics in soil; and (III ...


Design Improvements To Sulfate-Reducing Bioreactors For Mine-Influenced Stream Remediation In Cold Climates, Katrina Moreira Apr 2018

Design Improvements To Sulfate-Reducing Bioreactors For Mine-Influenced Stream Remediation In Cold Climates, Katrina Moreira

Graduate Theses & Non-Theses

Mine-influenced water (MIW), a waste water product containing heavy metals and sulfates, is a significant pollution source to waters in Montana. Implementing a low cost, passive treatment system, such as a sulfate-reducing bioreactor (SRBR), is desired for remediation of streams influenced by heavy metals in remote locations. SRBR systems operate by using organic matter and sulfate-rich water to precipitate and immobilize dissolved heavy metals. Sulfate-reducing bacteria utilize the organic matter as an electron donor to convert sulfate to sulfide, and then sulfide in the bioreactor is utilized to precipitate heavy metals. Under ideal operating conditions, SRBR systems can remove >98 ...


Anaerobic Co-Digestion Of Aqueous Liquid From Biosolids Pyrolysis, Seyedfatemeh Seyedi Apr 2018

Anaerobic Co-Digestion Of Aqueous Liquid From Biosolids Pyrolysis, Seyedfatemeh Seyedi

Master's Theses (2009 -)

Pyrolysis is a process to treat biosolids and recover energy. During pyrolysis, conversion of organic matter to energy-rich products yields biochar, py-gas, and pyrolysis liquids (aqueous phase and non-aqueous bio-oil). The aqueous pyrolysis liquid (APL), is a high-COD liquid with no apparent use that contains polycyclic aromatic hydrocarbons and nitrogen-containing compounds. One potential beneficial use of APL is as a co-digestate to produce more biogas for renewable energy from anaerobic digesters at municipal water resource recovery facilities. Some of the organics in APL may be converted to biomethane via anaerobic digestion under proper conditions. However, some APL organics are known ...


Co2 Biomass Fluidized Gasification. Thermodynamic And Reactivity Studies., Amanda Kuhn Bastos Mar 2018

Co2 Biomass Fluidized Gasification. Thermodynamic And Reactivity Studies., Amanda Kuhn Bastos

Electronic Thesis and Dissertation Repository

This study reports biomass gasification in a CREC Riser Simulator under thermal and catalytic conditions. Steam-CO2 and steam-inert were used as gasifier agents. Biomass feedstocks and a model compound were employed to evaluate gasification performance. It was proven that catalytic steam-CO2 gasification significantly reduces tar formation while improving carbon conversion to syngas.

Experimental results were compared with thermodynamic equilibrium model predictions. This model accounts for biomass composition, bed temperature and gasifying agents. The model predictions are close to experimental results for steam-CO2 gasification, leading to a zero CO2 gain.

2-methoxy-4-methylphenol and 20%Ni-5%CeO2/γ-Al ...


New Records Of Guano-Associated Minerals From Caves In Northwestern Borneo, Donald A. Mcfarlane, Joyce Lundberg Mar 2018

New Records Of Guano-Associated Minerals From Caves In Northwestern Borneo, Donald A. Mcfarlane, Joyce Lundberg

International Journal of Speleology

Recent studies of ancient bat guano deposits in the caves of Gunung Mulu National Park and Niah National Park, Sarawak, Malaysia, have resulted in noteworthy records of phosphate minerals from these environments, including variscite, nano-particulate silica, fluorapatite, and niter.


Track 2 – Environment Design Sprint Challenge, Britta W. Mckenna, Carl Heine Mar 2018

Track 2 – Environment Design Sprint Challenge, Britta W. Mckenna, Carl Heine

Professional Learning Day

Using Paul Hawkens, “Drawdown – The Most Comprehensive Plan Ever Proposed to Reverse Global Warming”, as a starting point, participants will take on the question of “What Can I do?” in developing actionable plans and prototypes in a design sprint challenge. Using BOSI DNA to identify areas of team strength, teams will work together to design the most innovative solutions to improve planet resiliency from climate impact. Culminating presentations conclude the event with an overall innovation and impact winner.


Timber Talk, Vol. 56, No. 1, March 2018 Mar 2018

Timber Talk, Vol. 56, No. 1, March 2018

Timber Talk: Nebraska Forest Industry Newsletter

Dear Timber Talk Subscribers,

Attached is the March 2018 issue of “Timber Talk – Nebraska Forest Industry Newsletter.” You must have Adobe software to open the file.

The direct link to previous issues of Timber Talk on the Nebraska Forest Service website is: http://nfs.unl.edu/timber-talk

In This Edition of Timber Talk

1. Lumber Market Reports

2. Hardwood Lumber Prices (green lumber, kiln-dried lumber, green pallet lumber, and green crossties)

3. Evaluating Timber Harvest Potential in Western Nebraska

4. Lincoln Schools, NFS to Demonstrate Urban Lumber Use

5. Nebraska Forest Industry Spotlight: Cutting Edge Mill (Elkhorn, NE)

6. Nebraska ...


Community-Level Plant–Soil Feedbacks Explain Landscape Distribution Of Native And Non-Native Plants, Andrew Kulmatiski Jan 2018

Community-Level Plant–Soil Feedbacks Explain Landscape Distribution Of Native And Non-Native Plants, Andrew Kulmatiski

Wildland Resources Faculty Publications

Plant–soil feedbacks (PSFs) have gained attention for their potential role in explaining plant growth and invasion. While promising, most PSF research has measured plant monoculture growth on different soils in short-term, greenhouse experiments. Here, five soil types were conditioned by growing one native species, three non-native species, or a mixed plant community in different plots in a common-garden experiment. After 4 years, plants were removed and one native and one non-native plant community were planted into replicate plots of each soil type. After three additional years, the percentage cover of each of the three target species in each community ...


Pyrolysis As An Economical And Ecological Treatment Option For Solid Anaerobic Digestate And Municipal Sewage Sludge, Devon J. Barry Jan 2018

Pyrolysis As An Economical And Ecological Treatment Option For Solid Anaerobic Digestate And Municipal Sewage Sludge, Devon J. Barry

Electronic Thesis and Dissertation Repository

The aim of this thesis was to investigate the potential for pyrolysis of solid anaerobic digestate and municipal sewage sludge. Slow, fast, and autothermal pyrolysis experiments were conducted for the anaerobic digestate while slow and fast pyrolysis experiments were carried out for the sewage sludge. Pyrolysis temperatures ranged from 250 to 550 ᵒC. The effect of pyrolysis conditions on the pyrolysis products was examined.

Fast pyrolysis at higher temperatures was favourable for energy recovery in the bio-oil products. Slow pyrolysis was favourable for the biochar products. Lower pyrolysis temperatures favoured energy recovery in the biochar; while higher temperatures increased biochar ...


The Production Of Pyrolytic Biochar For Addition In Value-Added Composite Material, Douglas Matthew Cuthbertson Jan 2018

The Production Of Pyrolytic Biochar For Addition In Value-Added Composite Material, Douglas Matthew Cuthbertson

Electronic Thesis and Dissertation Repository

Pyrolytic biochar has recently gained attention for its potential value as a carbon sequestering by-product that can be used in industrial applications. While biochar is typically targeted for soil amendment applications, higher value applications such as addition in consumer products and building materials needs to be investigated.

In this study, biochar is produced from three different Canadian feedstocks using three different pyrolysis methods. The biochar is characterized to determine the effects that feedstock selection and pyrolysis conditions has on biochar properties. The biochar is also incorporated into concrete at varying concentrations to create a lightweight and sustainable material. The effect ...


Renewable Fuels Produced From Biomass Pyrolysis Vapors: Catalysis And Reaction Engineering, David Pierce Gamliel Jan 2018

Renewable Fuels Produced From Biomass Pyrolysis Vapors: Catalysis And Reaction Engineering, David Pierce Gamliel

Doctoral Dissertations

At present, lignocellulosic biomass is the only renewable and available resource capable of supplanting fossil fuel resources. Fast pyrolysis is the conversion of biomass at elevated temperature, high heating rate and under inert atmosphere to produce bio-oil. This bio-oil is a blend of oxygenated hydrocarbons, which must be upgraded prior to use as a transportation fuel. The focus of this thesis is the investigation of bio-oil upgrading reaction pathways and catalysts for the production of biofuels.

There are two primary pathways for pyrolysis vapor upgrading: catalytic cracking and hydrodeoxygenation (HDO). During catalytic cracking, pyrolysis vapors react over the acid sites ...


Pilot-Scale Testing Of Non-Activated Biochar For Swine Manure Treatment And Mitigation Of Ammonia, Hydrogen Sulfide, Odorous Volatile Organic Compounds (Vocs), And Greenhouse Gas Emissions, Devin L. Maurer, Jacek A. Koziel, Kajetan Kalus, Daniel S. Andersen, Sebastian Opalinski Jan 2018

Pilot-Scale Testing Of Non-Activated Biochar For Swine Manure Treatment And Mitigation Of Ammonia, Hydrogen Sulfide, Odorous Volatile Organic Compounds (Vocs), And Greenhouse Gas Emissions, Devin L. Maurer, Jacek A. Koziel, Kajetan Kalus, Daniel S. Andersen, Sebastian Opalinski

Jacek A. Koziel

Managing the environmental impacts associated with livestock production is a challenge for farmers, public and regulatory agencies. Sustainable solutions that take into account technical and socioeconomic factors are needed. For example, the comprehensive control of odors, ammonia (NH3), hydrogen sulfide (H2S), and greenhouse gas (GHG) emissions from swine production is a critical need. Stored manure is a major source of gaseous emissions. Mitigation technologies based on bio-based products such as biochar are of interest due to the potential benefits of nutrient cycling. The objective of this study was to test non-activated (non-functionalized) biochar for the mitigation of gaseous emissions from ...


Adsorption Of Diclofenac Onto Different Biochar Microparticles: Dataset – Characterization And Dosage Of Biochar, Linson Lonappan, Tarek Rouissi, Satinder Kaur Brar, Mausam Verma, Rao Y. Surampalli Jan 2018

Adsorption Of Diclofenac Onto Different Biochar Microparticles: Dataset – Characterization And Dosage Of Biochar, Linson Lonappan, Tarek Rouissi, Satinder Kaur Brar, Mausam Verma, Rao Y. Surampalli

Civil Engineering Faculty Publications

Due to its wide occurrence in water resources and toxicity, pharmaceuticals and personal care products are becoming an emerging concern throughout the world. Application of residual/waste materials for water remediation can be a good strategy in waste management as well as in waste valorization. Herein, this dataset provides information on biochar application for the removal of emerging contaminant, diclofenac from water matrices. The data presented here is an extension of the research article explaining the mechanisms of adsorption diclofenac on biochars (Lonappan et al., 2017 [1]). This data article provides general information on the surface features of pine wood ...


Oxidation Of Β-O-4 Lignin Model Compounds And Application To Lignin Linkage Degradation Facilitated By Mechanochemical Treatment And Two-Step Oxidative Depolymerization, Soledad G. Yao Jan 2018

Oxidation Of Β-O-4 Lignin Model Compounds And Application To Lignin Linkage Degradation Facilitated By Mechanochemical Treatment And Two-Step Oxidative Depolymerization, Soledad G. Yao

Theses and Dissertations--Chemistry

The oxidation of lignin model compounds was studied in conventional solvents in parallel with oxidations in ionic liquid solvents. Catalyst systems were investigated in ionic liquid solvents to determine how reaction rates and the selectivity for benzylic carbon oxidation were affected. Oxidation rates were often lower in ionic liquids than in conventional solvents ‒ as indicated by lower conversion in a standard reaction time ‒ likely due, at least in part, to the higher viscosity of ionic liquids. Mechano chemical treatment of Indulin AT kraft lignin by ball milling with KOH and toluene produced significant carbonyl functionality, among other changes. The chemical ...


Adsorption Of Diclofenac Onto Different Biochar Microparticles: Dataset – Characterization And Dosage Of Biochar, Linson Lonappan, Tarek Rouissi, Satinder Kaur Brar, Mausam Verma, Rao Y. Surampalli Jan 2018

Adsorption Of Diclofenac Onto Different Biochar Microparticles: Dataset – Characterization And Dosage Of Biochar, Linson Lonappan, Tarek Rouissi, Satinder Kaur Brar, Mausam Verma, Rao Y. Surampalli

Civil Engineering Faculty Publications

Due to its wide occurrence in water resources and toxicity, pharmaceuticals and personal care products are becoming an emerging concern throughout the world. Application of residual/waste materials for water remediation can be a good strategy in waste management as well as in waste valorization. Here in, this dataset provides information on biochar application for the removal of emerging contaminant, diclofenac from water matrices.The data presented here is an extension of there search article explaining the mechanisms of adsorption diclofenac on biochars(Lonappan et al., 2017[1]). This data article provides general information on the surface features of pine ...


Biocentury Research Farm Update, Andrew Suby Jan 2018

Biocentury Research Farm Update, Andrew Suby

Farm Progress Reports

The BCRF had a diversity of users in 2017. Iowa State University (ISU) faculty and staff from the Departments of Agricultural and Biosystems Engineering (ABE); Agronomy; Biochemistry; Chemical and Biological Engineering (CBE); Civil, Construction, and Environmental Engineering (CCEE); Mechanical Engineering (ME); and Food Science and Human Nutrition (FSHN), as well as the Bioeconomy Institute (BEI), Center for Crops Utilization Research (CCUR), College of Agriculture and Life Sciences (CALS), and Extension and Outreach conducted research, teaching, and/or outreach at the BCRF. Private industry users included ARGO, Chevron, Deere and Company, DuPont Cellulosic Ethanol, Phillips 66, and many others. By the ...


Impact Of Biochar And Fertility Management On Potato Production, Ajay Nair, Kristine Lang, Dominic Snyder Jan 2018

Impact Of Biochar And Fertility Management On Potato Production, Ajay Nair, Kristine Lang, Dominic Snyder

Farm Progress Reports

Biochar, a charcoal created from organic materials burned at high temperatures and low oxygen environment, when added as a soil amendment, has been shown to increase soil fertility, water holding capacity, greenhouse gas reduction, and carbon sequestration. Biochar as a biorenewable resource has the potential to positively impact several key areas of our production systems such as soil organic matter and quality, water quality, crop growth, yield, and productivity. Adding biochar to a soil is an irreversible decision, so understanding its long-term impacts is essential for growers to make informed decisions. In the United States, most biochar research has been ...


Muscatine Island Research Farm Summary, Muscatine Island Research Farm Association, Josh Michel Jan 2018

Muscatine Island Research Farm Summary, Muscatine Island Research Farm Association, Josh Michel

Farm Progress Reports

No abstract provided.


Armstrong And Neely-Kinyon Research Farms Summary, Armstrong And Neely-Kinyon Research Farms, Dallas Maxwell Jan 2018

Armstrong And Neely-Kinyon Research Farms Summary, Armstrong And Neely-Kinyon Research Farms, Dallas Maxwell

Farm Progress Reports

No abstract provided.


Effects Of Co-Product Uses On Environmental And Economic Sustainability Of Hydrocarbon Biofuel From One- And Two-Step Pyrolysis Of Poplar, Daniel G. Kulas Jan 2018

Effects Of Co-Product Uses On Environmental And Economic Sustainability Of Hydrocarbon Biofuel From One- And Two-Step Pyrolysis Of Poplar, Daniel G. Kulas

Dissertations, Master's Theses and Master's Reports

This study investigated the environmental and economic sustainability of liquid hydrocarbon biofuel production via fast pyrolysis of poplar biomass through two pathways: a one-step pathway that converted poplar via fast pyrolysis only, and a twostep pathway that includes a torrefaction step prior to fast pyrolysis. Optimization of these fast pyrolysis-based biofuel processes were investigated through heat integration and alternative uses of the co-product biochar, which can be sold as an energy source to displace coal, soil amendment or processed into activated carbon. The impacts of optimization on the cost of hydrocarbon biofuel production as well as the environmental impacts were ...


Using Renewable Energy To Increase Tribal Sovereignty: A Feasibility Study For A Biomass Energy Plant On The Cocopah Reservation, Lauren Katrina D'Souza Jan 2018

Using Renewable Energy To Increase Tribal Sovereignty: A Feasibility Study For A Biomass Energy Plant On The Cocopah Reservation, Lauren Katrina D'Souza

CMC Senior Theses

Native American reservations in the United States are often located on mineral-rich lands, making them a target for fossil fuel development in already socioeconomically disadvantaged areas. As environmentally damaging as they are, coal and oil industries can bring invaluable jobs and money to isolated reservations, causing tribes to rely on fossil fuels for mere economic survival. In these instances of corporations or the federal government exploiting Native American labor and land, tribes lose the most fundamental principle of tribal governance: tribal sovereignty. Replacing fossil fuels and securing energy independence with a stable, renewable energy source is key to reclaiming that ...


The Growing Together Project: Understanding Impacts On Field Day Attendees And Iowa Master Gardeners, Laura Irish Jan 2018

The Growing Together Project: Understanding Impacts On Field Day Attendees And Iowa Master Gardeners, Laura Irish

Graduate Theses and Dissertations

Citizen science has been shown to be an effective tool for increasing data collection, as well as a great benefit to those who participate in the research project. The rising costs and limited funding for conducting large-scale research projects make citizen science projects valuable assets for researchers. Understanding the impact of citizen science projects on the volunteers must be done to better engage with and retain the volunteers. The Growing Together project, a partnership between the ISU Extension and Outreach Master Gardener program and the Human Sciences Extension, was created to increase food security in Iowa. The two major components ...