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Farm-Scale Testing Of Soybean Peroxidase And Calcium Peroxide For Surficial Swine Manure Treatment And Mitigation Of Odorous Vocs, Ammonia And Hydrogen Sulfide Emissions, Devin L. Maurer, Jacek A. Koziel, Kelsey Bruning, David B. Parker 2017 Iowa State University

Farm-Scale Testing Of Soybean Peroxidase And Calcium Peroxide For Surficial Swine Manure Treatment And Mitigation Of Odorous Vocs, Ammonia And Hydrogen Sulfide Emissions, Devin L. Maurer, Jacek A. Koziel, Kelsey Bruning, David B. Parker

Agricultural and Biosystems Engineering Publications

The swine industry, regulatory agencies, and the public are interested in farm-tested methods for controlling gaseous emissions from swine barns. In earlier lab- and pilot-scale studies, a renewable catalyst consisting of soybean peroxidase (SBP) mixed with calcium peroxide (CaO2) was found to be effective in mitigating gaseous emissions from swine manure. Thus, a farm-scale experiment was conducted at the university's 178-pig, shallow-pit, mechanically-ventilated swine barn to evaluate SBP/CaO2 as a surficial manure pit additive under field conditions. The SBP was applied once at the beginning of the 42-day experiment at an application rate of 2.28 ...


Patentability Of Living Matter Related To Biofuel Production In The U.S., Nathan K. Shrewsbury 2017 University of Oklahoma College of Law

Patentability Of Living Matter Related To Biofuel Production In The U.S., Nathan K. Shrewsbury

Oklahoma Journal of Law and Technology

No abstract provided.


Analysis Of Odorants In Marking Fluid Of Siberian Tiger (Panthera Tigris Altaica) Using Simultaneous Sensory And Chemical Analysis With Headspace Solid-Phase Microextraction And Multidimensional Gas Chromatography-Mass Spectrometry-Olfactometry, Simone B. Soso, Jacek A. Koziel 2017 Iowa State University

Analysis Of Odorants In Marking Fluid Of Siberian Tiger (Panthera Tigris Altaica) Using Simultaneous Sensory And Chemical Analysis With Headspace Solid-Phase Microextraction And Multidimensional Gas Chromatography-Mass Spectrometry-Olfactometry, Simone B. Soso, Jacek A. Koziel

Simone B. Soso

Scent-marking is the most effective method of communication in the presence or absence of a signaler. These complex mixtures result in a multifaceted interaction triggered by the sense of smell. The objective was to identify volatile organic compound (VOC) composition and odors emitted by total marking fluid (MF) associated with Siberian tigers (Panthera tigris altaica). Siberian tiger, an endangered species, was chosen because its MF had never been analyzed. Solid phase microextraction (SPME) for headspace volatile collection combined with multidimensional gas chromatography-mass spectrometry-olfactometry for simultaneous chemical and sensory analyses were used. Thirty-two VOCs emitted from MF were identified. 2-acetyl-1-pyrroline, the ...


Characterizing The Scent And Chemical Composition Of Panthera Leo Marking Fluid Using Solid-Phase Microextraction And Multidimensional Gas Chromatography–Mass Spectrometry-Olfactometry, Simone B. Soso, Jacek A. Koziel 2017 Iowa State University

Characterizing The Scent And Chemical Composition Of Panthera Leo Marking Fluid Using Solid-Phase Microextraction And Multidimensional Gas Chromatography–Mass Spectrometry-Olfactometry, Simone B. Soso, Jacek A. Koziel

Simone B. Soso

Lions (Panthera leo) use chemical signaling to indicate health, reproductive status, and territorial ownership. To date, no study has reported on both scent and composition of marking fluid (MF) from P. leo. The objectives of this study were to: 1) develop a novel method for simultaneous chemical and scent identification of lion MF in its totality (urine + MF), 2) identify characteristic odorants responsible for the overall scent of MF as perceived by human panelists, and 3) compare the existing library of known odorous compounds characterized as eliciting behaviors in animals in order to understand potential functionality in lion behavior. Solid-phase ...


Algae As A New Source Of Biofuel, John C. Staley, Moises Contreras, Austin W. Jesz, Md Yusoff Mohammad Iqbal 2017 Iowa State University

Algae As A New Source Of Biofuel, John C. Staley, Moises Contreras, Austin W. Jesz, Md Yusoff Mohammad Iqbal

Mohammad Z. Iqbal

Biofuels utilizing algae as a feedstock processes the algae’s chloroplasts to transform the plant into oil that is nearly chemically identical to crude oil. Algae can grow using only available raw materials including sunlight, carbon dioxide and nutrients from wastewater. Algae can play a major role in the treatment/utilization of major wastewater and reduction of carbon dioxide in the atmosphere. High upfront costs, outdated technology, and non-existing incentives are the main reasons algae as a feedstock is currently an unpopular choice for biofuel.


Analysis Of Asynchronous Supplemental Course Modules In Statistical Process Control, Matthew E. Harvey, John R. Haughery, Sai K. Ramaswamy 2017 Iowa State University

Analysis Of Asynchronous Supplemental Course Modules In Statistical Process Control, Matthew E. Harvey, John R. Haughery, Sai K. Ramaswamy

Sai Ramaswamy

Many engineering and technology departments at the collegiate level have developed extensive online and hybrid (face-to-face and online) course offerings (Bourne, Harris, & Mayadas, 2005). These courses may meet several goals such as increasing access, reducing university costs, providing schedule flexibility, and increasing curriculum offerings. An additional opportunity for computer-based learning is to increase student success by offering asynchronous learning modules to extend content beyond traditional lectures.


Rice Hull Bioreactor For Recirculating Aquaculture, Marlon A. Greensword 2017 Louisiana State University and Agricultural and Mechanical College

Rice Hull Bioreactor For Recirculating Aquaculture, Marlon A. Greensword

LSU Doctoral Dissertations

The engineering of floating media biofilters has been optimized over the years. The backwashing process has made them more energy and water efficient. Likewise, moving bed bioreactors (MBBR) are gaining interest and popularity because they are relatively affordable to build. Yet, developing countries’ aquaculture production remains largely excluded from the advances made in recirculating aquaculture systems (RAS). This discrepancy is partially driven by the high costs of media such plastic beads and Kaldnes (KMT) media, commonly used in MBBR.

This dissertation evaluates the usability and profitability of rice hulls (RH), an abundant by-product in many developing nations, as a sinking ...


Life, Service And Cost Of Service Of Pneumatic Tractor Tires, Eugene G. McKibben, J. Brownlee Davidson 2017 Iowa State College

Life, Service And Cost Of Service Of Pneumatic Tractor Tires, Eugene G. Mckibben, J. Brownlee Davidson

Bulletin (Iowa Agricultural Experiment Station)

The experience of Iowa farm users of 199 sets of pneumatic tractor tires indicates satisfactory durability and field performance. These users, selected as a representative sample, were located in 73 counties and represent the equivalent of 381 years of individual observation.


Labor, Power And Machinery In Corn Production, Claude K. Shedd, Edgar V. Collins, J. Brownlee Davidson 2017 Iowa State College

Labor, Power And Machinery In Corn Production, Claude K. Shedd, Edgar V. Collins, J. Brownlee Davidson

Bulletin (Iowa Agricultural Experiment Station)

Commercial corn production cannot be carried on by hand methods; it can be done only with machinery.

Operating costs in corn production greatly depend upon the efficiency of labor, power and machinery management.

Results obtained in a study of the use of labor, power and machinery at Ames are as follows:

Raking and burning cornstalks before plowing in preparing a seedbed for corn required .47 man-hour of labor and .38 tractor-hour of power per acre and appeared to be largely a waste of labor and power.

Cutting stalks with a stalk cutter before plowing required .23 hour per acre for ...


Can Students Flourish In Engineering Classrooms?, Peggy Boylan-Ashraf, Steven A. Freeman, Mack C. Shelley, Özgür Keleş 2017 San Jose State University

Can Students Flourish In Engineering Classrooms?, Peggy Boylan-Ashraf, Steven A. Freeman, Mack C. Shelley, Özgür Keleş

Steven A. Freeman

This study investigated the role of a new paradigm in teaching large introductory, fundamental engineering mechanics (IFEM) courses that combined student-centered learning pedagogies and supplemental learning resources. Demographic characteristics in this study included a total of 405 students, of whom 347 (85.7%) are males and 58 are (14.3%) females. The students’ majors included aerospace engineering, agricultural engineering, civil engineering, construction engineering, industrial engineering, materials engineering, and mechanical engineering.
Results of this study, as tested using an independent samples t-test, validated using a nonparametric independent samples test, and a general linear multivariate model analysis, indicated overwhelmingly that there is ...


Calibration Of Soil Compaction Behavior Using Discrete Element Method (Dem), Mohammad A. Sadek, Mehari Tekeste, Mojtaba Naderi 2017 Buhler Industries, Inc.

Calibration Of Soil Compaction Behavior Using Discrete Element Method (Dem), Mohammad A. Sadek, Mehari Tekeste, Mojtaba Naderi

Mehari Tekeste

Soil compaction has potential to reduce crop yield by resisting seed germination and root growth. Modern agricultural farm equipment is getting bigger in size and axle weight that could cause excessive soil compaction. Natures of soil compaction in agricultural fields are not predictable because of non-homogeneous soil condition, and inconsistent wheel trafficking in the field. In this study predicting soil compaction behaviour will be studied for under different three soil moisture using Discrete Element Method (DEM). Discrete Element Method (DEM) is capable to simulate the elastic-plastic soil compaction behavior. Selection of appropriate DEM contact model and calibration of the DEM ...


Discrete Element Modeling (Dem) Of Cone Penetration Testing On Soil With Varying Relative Soil Density, Zamir Syed, Mehari Tekeste, Thomas Way 2017 Iowa State University

Discrete Element Modeling (Dem) Of Cone Penetration Testing On Soil With Varying Relative Soil Density, Zamir Syed, Mehari Tekeste, Thomas Way

Mehari Tekeste

Modeling soil-tool interaction is essential for equipment design and performance evaluation on soil behavior responses under loading. Computational tools based on particle-based mechanics such as Discrete Element Modeling (DEM) and Smoothed Particle Hydrodynamics (SPH) have potential in modeling large strain soil dynamic behaviors from soil-tool interaction. The objective of this study is to validate the accuracy and robustness of DEM calibration methodology as it relates to soil deformation during cone penetration on varying initial soil relative density. The influence of factors such as DEM material properties and cone to particle size ratio on DEM cone penetration simulation will be investigated ...


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 2017 Iowa State University

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

Daniel S. Andersen

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 ...


Ompostable Characteristics Of Reject Materials Produced During Industrial-Scale Corn Stover Biomass To Ethanol Conversion, Kapil Arora, Daniel Andersen 2017 Iowa State University

Ompostable Characteristics Of Reject Materials Produced During Industrial-Scale Corn Stover Biomass To Ethanol Conversion, Kapil Arora, Daniel Andersen

Daniel S. Andersen

Industrial scale corn stover biomass conversion to ethanol is taking its roots in Iowa. Stover, consisting of above-ground corn plant material other than grain (MOG), is baled at harvest and stored on-farms. Stored bales can deteriorate during storage resulting in reject stover unworthy of processing. Bales, that meet the ethanol conversion quality standards, are transported to the processing facility to prepare stover for the ethanol conversion process. Bales, consisting of stover and loose soil, are subjected to grinding and sieving to separate soil from stover, thereby, producing soil stover as a reject material excluded from the ethanol conversion process. Compostable ...


Harvesting Alfalfa With A Windrow Pick-Up Baler, J. Brownlee Davidson, William H. Carter 2017 Iowa State College

Harvesting Alfalfa With A Windrow Pick-Up Baler, J. Brownlee Davidson, William H. Carter

Bulletin (Iowa Agricultural Experiment Station)

Excellent quality hay may be made with the windrow pick-up baler.

A windrow pick-up baler, operated at Iowa State College during the haymaking season of 1933, showed an average capacity of 1.59 tons of alfalfa per hour and a labor requirement of 2.52 man hours per ton. After the operators had developed some skill, the capacity of the machine in baling one crop from a field was increased to 3 tons per hour, and the labor expenditure lowered to 1.35 man hours per ton.


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 2017 Iowa State University

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

Devin L. Maurer

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 ...


Mitigation Of Livestock Odors Using Black Light And A New Titanium Dioxide-Based Catalyst: Proof-Of-Concept, Wenda Zhu, Jacek A. Koziel, Devin L. Maurer 2017 Iowa State University

Mitigation Of Livestock Odors Using Black Light And A New Titanium Dioxide-Based Catalyst: Proof-Of-Concept, Wenda Zhu, Jacek A. Koziel, Devin L. Maurer

Devin L. Maurer

Concentrated livestock feeding operations have become a source of odorous gas emissions that impact air quality. Comprehensive and practical technologies are needed for a sustainable mitigation of the emissions. In this study, we advance the concept of using a catalyst for barn walls and ceilings for odor mitigation. Two catalysts, a new TiO2-based catalyst, PureTi Clean, and a conventional Evonik (formerly Degussa, Evonik Industries, Essen, Germany) P25 (average particle size 25 nm) catalyst, were studied for use in reducing simulated odorous volatile organic compound (VOC) emissions on a laboratory scale. The UV source was black light. Dimethyl disulfide (DMDS), diethyl ...


Pilot-Scale Concept Of Real-Time Wind Speed-Matching Wind Tunnel For Measurements Of Gaseous Emissions, Devin Maurer, Jacek A. Koziel, Kelsey M. Bruning, David B. Parker 2017 Iowa State University

Pilot-Scale Concept Of Real-Time Wind Speed-Matching Wind Tunnel For Measurements Of Gaseous Emissions, Devin Maurer, Jacek A. Koziel, Kelsey M. Bruning, David B. Parker

Devin L. Maurer

Comprehensive control of odors, hydrogen sulfide (H2S), ammonia (NH3) and odorous volatile organic compound (VOC) emissions associated with animal production is a critical need. Current methods utilizing wind tunnels and flux chambers for measurements of gaseous emissions from area sources such as feedlots, lagoons, pastures and cropland are often criticized for potential bias. The bias is due to the temporal isolation of the emitting surface, affecting the air velocity and temperature at the surface, forcing controlled surface-to-gas-phase mass transfer, and therefore, affecting emission measurements. That bias can limit the applicability of these methods to relative and comparative ...


Farm-Scale Testing Of Soybean Peroxidase And Calcium Peroxide For Surficial Swine Manure Treatment And Mitigation Of Odorous Vocs, Ammonia And Hydrogen Sulfide Emissions, Devin L. Maurer, Jacek A. Koziel, Kelsey Bruning, David B. Parker 2017 Iowa State University

Farm-Scale Testing Of Soybean Peroxidase And Calcium Peroxide For Surficial Swine Manure Treatment And Mitigation Of Odorous Vocs, Ammonia And Hydrogen Sulfide Emissions, Devin L. Maurer, Jacek A. Koziel, Kelsey Bruning, David B. Parker

Devin L. Maurer

The swine industry, regulatory agencies, and the public are interested in farm-tested methods for controlling gaseous emissions from swine barns. In earlier lab- and pilot-scale studies, a renewable catalyst consisting of soybean peroxidase (SBP) mixed with calcium peroxide (CaO2) was found to be effective in mitigating gaseous emissions from swine manure. Thus, a farm-scale experiment was conducted at the university's 178-pig, shallow-pit, mechanically-ventilated swine barn to evaluate SBP/CaO2 as a surficial manure pit additive under field conditions. The SBP was applied once at the beginning of the 42-day experiment at an application rate of 2.28 ...


Use Of Fecal Volatile Organic Compound Analysis To Discriminate Between Non-Vaccinated And Bcg—Vaccinated Cattle Prior To And After Mycobacterium Bovis Challenge, Christine K. Ellis, Somchai Rice, Devin Maurer, Randal Stahl, W. Ray Waters, Mitchell V. Palmer, Pauline Nol, Jack C. Rhyan, Kurt C. VerCauteren, Jacek A. Koziel 2017 United States Department of Agriculture

Use Of Fecal Volatile Organic Compound Analysis To Discriminate Between Non-Vaccinated And Bcg—Vaccinated Cattle Prior To And After Mycobacterium Bovis Challenge, Christine K. Ellis, Somchai Rice, Devin Maurer, Randal Stahl, W. Ray Waters, Mitchell V. Palmer, Pauline Nol, Jack C. Rhyan, Kurt C. Vercauteren, Jacek A. Koziel

Devin L. Maurer

Bovine tuberculosis is a zoonotic disease of global public health concern. Development of diagnostic tools to improve test accuracy and efficiency in domestic livestock and enable surveillance of wildlife reservoirs would improve disease management and eradication efforts. Use of volatile organic compound analysis in breath and fecal samples is being developed and optimized as a means to detect disease in humans and animals. In this study we demonstrate that VOCs present in fecal samples can be used to discriminate between non-vaccinated and BCG-vaccinated cattle prior to and after Mycobacterium bovis challenge.


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