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Agricultural and Biosystems Engineering Publications

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Full-Text Articles in Engineering

Low-Temperature Pyrolysis Of Municipal Solid Waste Components And Refuse-Derived Fuel—Process Efficiency And Fuel Properties Of Carbonized Solid Fuel, Kacper Swiechowski, Ewa Syguła, Jacek A. Koziel, Paweł Stepien, Szymon Kugler, Piotr Manczarski, Andrzej Białowiec Jun 2020

Low-Temperature Pyrolysis Of Municipal Solid Waste Components And Refuse-Derived Fuel—Process Efficiency And Fuel Properties Of Carbonized Solid Fuel, Kacper Swiechowski, Ewa Syguła, Jacek A. Koziel, Paweł Stepien, Szymon Kugler, Piotr Manczarski, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

New technologies to valorize refuse-derived fuels (RDFs) will be required in the near future due to emerging trends of (1) the cement industry’s demands for high-quality alternative fuels and (2) the decreasing calorific value of the fuels derived from municipal solid waste (MSW) and currently used in cement/incineration plants. Low-temperature pyrolysis can increase the calorific value of processed material, leading to the production of value-added carbonized solid fuel (CSF). This dataset summarizes the key properties of MSW-derived CSF. Pyrolysis experiments were completed using eight types of organic waste and their two RDF mixtures. Organic waste represented common morphological ...


An Environmental And Economic Analysis Of Flocculation Technology Applied To A Corn-Based Ethanol Plant, Maria C. T. B. Oliveira, Kurt A. Rosentrater Feb 2020

An Environmental And Economic Analysis Of Flocculation Technology Applied To A Corn-Based Ethanol Plant, Maria C. T. B. Oliveira, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

The stimulation of renewable fuel production is related to the environmental issues resulting from the extraction and utilization of fossil fuels. Although corn-based ethanol is one of the leading renewable fuels and promises to mitigate these environmental impacts, it generates large volumes of wastewater with high concentrations of organic material (CODcr > 30,000 mg/L) and low pH (3.5–4.5), which leads to serious environmental concerns. A common method of treatment of distillery wastewater is the Dry Distilled Grain Soluble (DDGS) process, which separates liquid and solid fractions; however, a disadvantage of this process is its high ...


Effects Of Farrowing Stall Layout And Number Of Heat Lamps On Sow And Piglet Production Performance, Suzanne M. Leonard, Hongwei Xin, Tami M. Brown-Brandl, Brett C. Ramirez, Somak Dutta, Gary A. Rohrer Feb 2020

Effects Of Farrowing Stall Layout And Number Of Heat Lamps On Sow And Piglet Production Performance, Suzanne M. Leonard, Hongwei Xin, Tami M. Brown-Brandl, Brett C. Ramirez, Somak Dutta, Gary A. Rohrer

Agricultural and Biosystems Engineering Publications

Most farrowing facilities in the United States use stalls and heat lamps to improve sow and piglet productivity. This study investigated these factors by comparing production outcomes for three different farrowing stall layouts (traditional, expanded creep area, expanded sow area) and use of one or two heat lamps. Data were collected on 427 sows and their litters over one year. Results showed no statistical differences due to experimental treatment for any of the production metrics recorded, excluding percent stillborn. Parity one sows had fewer piglets born alive (p < 0.001), lower percent mortality (p = 0.001) and over-lay (p = 0.003), and a greater number of piglets weaned (p < 0.001) with lower average daily weight gain (ADG) (p < 0.001) and more uniform litters (p = 0.001) as compared to higher parity sows. Farrowing turn, associated with group/seasonal changes, had a significant impact on most of the production metrics measured. Number of piglets born influenced the percent stillborn (p < 0.001). Adjusted litter size had a significant impact on percent mortality (p < 0.001), percent over-lay (p < 0.001), and number of piglets weaned (p < 0.001). As the number of piglets weaned per litter increased, both piglet ADG and litter uniformity decreased (p < 0.001). This information can be used to guide producers in farrowing facility design.


Lack Of Interactive Effects Between Diet Composition Or Acid Addition With Drying Method On Amino Acid Digestibility Values In Porcine Ileal Digesta, Brian Kerr, Shelby M. Curry, Brett C. Ramirez Jan 2020

Lack Of Interactive Effects Between Diet Composition Or Acid Addition With Drying Method On Amino Acid Digestibility Values In Porcine Ileal Digesta, Brian Kerr, Shelby M. Curry, Brett C. Ramirez

Agricultural and Biosystems Engineering Publications

Two experiments were conducted to determine the effect of oven drying (OD) or freeze drying (FD) on apparent ileal digestibility (AID) of amino acids (AA) in diets fed to pigs. In Exp. 1, 15 barrows (88.4 ± 6.4 kg) were allotted to either a corn starch-soybean meal (CST), potato starch-soybean meal (PST), or corn-soybean meal (CSBM) diet, over 2 collection periods. Following collection, samples were pooled within pig and subdivided into either OD or FD, resulting in 10 observations per diet by drying method combination. In Exp. 2, 11 barrows (63.3 ± 3.8 kg) were fed a CST ...


Cost Assessment Of Five Different Maize Grain Handling Techniques To Reduce Postharvest Losses From Insect Contamination, Bernard Darfour, Kurt A. Rosentrater Jan 2020

Cost Assessment Of Five Different Maize Grain Handling Techniques To Reduce Postharvest Losses From Insect Contamination, Bernard Darfour, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

Farmers in developing nations encounter high postharvest losses mainly attributable to the lack of modern techniques for threshing, cleaning, grading, and grain storage. Mechanized handling of grain in developing countries is rare, although the technology is effective against insects and pest infestations. The objective was to evaluate the cost-effectiveness of five grain handling techniques that have the ability to reduce postharvest losses from insect infestation. The five methods were metal silo plus all accessories (m. silo + acc.), metal silo only (m. silo), woven polypropylene plus phosphine (w. PP. + Phos.), woven polypropylene only (w. PP.), and Purdue Improved Crop Storage bags ...


Techno-Economic Analysis (Tea) Of Different Pretreatment And Product Separation Technologies For Cellulosic Butanol Production From Oil Palm Frond, Nazira Mahmud, Kurt A. Rosentrater Jan 2020

Techno-Economic Analysis (Tea) Of Different Pretreatment And Product Separation Technologies For Cellulosic Butanol Production From Oil Palm Frond, Nazira Mahmud, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

Among the driving factors for the high production cost of cellulosic butanol lies the pretreatment and product separation sections, which often demand high amounts of energy, chemicals, and water. In this study, techno-economic analysis of several pretreatments and product separation technologies were conducted and compared. Among the pretreatment technologies evaluated, low-moisture anhydrous ammonia (LMAA) pretreatment has shown notable potential with a pretreatment cost of $0.16/L butanol. Other pretreatment technologies evaluated were autohydrolysis, soaking in aqueous ammonia (SAA), and soaking in sodium hydroxide solution (NaOH) with pretreatment costs of $1.98/L, $3.77/L, and $0.61/L ...


Developing A Graphical User Interface (Gui) To Predict The Contamination Of Gm Corn In Non-Gm Corn, Karthik Salish, Gretchen A. Mosher, R. P. Kingsly Ambrose Jan 2020

Developing A Graphical User Interface (Gui) To Predict The Contamination Of Gm Corn In Non-Gm Corn, Karthik Salish, Gretchen A. Mosher, R. P. Kingsly Ambrose

Agricultural and Biosystems Engineering Publications

The current rate of population growth necessitates the use of viable technologies like genetic modification to address estimated global food and feed requirements. However, in recent years, there has been an increase in resistance against the diffusion of genetic modification technology around the world. Many countries have adopted coexistence policies to allow a certain percentage of adventitious presence in non-genetically modified crops. However, the tolerance percentage for adventitious presence has been a bottleneck to free trade in some cases. It is a challenging task to fix a tolerance percentage considering the level of permeation of genetic modification technology in agriculture ...


Denitrifying Bioreactor Woodchip Recharge: Media Properties After Nine Years, Laura E. Christianson, Gary W. Feyereisen, Christopher Hay, Ulrike W. Tschirner, Keegan Kult, Niranga M. Wickramarathne, Natasha L. Hoover, Michelle L. Soupir Jan 2020

Denitrifying Bioreactor Woodchip Recharge: Media Properties After Nine Years, Laura E. Christianson, Gary W. Feyereisen, Christopher Hay, Ulrike W. Tschirner, Keegan Kult, Niranga M. Wickramarathne, Natasha L. Hoover, Michelle L. Soupir

Agricultural and Biosystems Engineering Publications

There is a lack of information on denitrifying bioreactors treating subsurface drainage water at the end of their initial design life due to the relative newness of the technology and the relatively long estimated life. A denitrifying bioreactor (15 m L x 7.6 m W x 1.1 m D) installed in August 2008 in Greene County, Iowa, was recharged with new woodchips in November 2017 (age 9.25 years), providing the opportunity to evaluate the properties of the wood media at the end of design life. The objective was to pair a battery of physical, chemical, and nitrate-N ...


Effect Of Blending Amaranth Grain With Maize Kernels On Maize Weevil Control During Storage, Denis Bbosa, Thomas J. Brumm, Carl J. Bern, Kurt A. Rosentrater, D. Raj Raman Jan 2020

Effect Of Blending Amaranth Grain With Maize Kernels On Maize Weevil Control During Storage, Denis Bbosa, Thomas J. Brumm, Carl J. Bern, Kurt A. Rosentrater, D. Raj Raman

Agricultural and Biosystems Engineering Publications

Amaranth (Amaranthus spp.) is used as a vegetable, food, forage, and sometimes an ornamental. Amaranth grain has higher protein content than other cereals, making it a good choice for human consumption. Maize is among the three most widely grown grains in the world, but it can experience large postharvest losses during storage due to infestation by the maize weevil (Sitophilus zeamais). Due to the small size of amaranth seeds, this study postulated that amaranth grain can be blended with maize during storage to fill the intergranular spaces between maize kernels, reducing the overall void volume to minimize maize weevil movements ...


Life-Cycle Assessment (Lca) Of Different Pretreatment And Product Separation Technologies For Butanol Bioprocessing From Oil Palm Frond, Nazira Mahmud, Kurt A. Rosentrater Jan 2020

Life-Cycle Assessment (Lca) Of Different Pretreatment And Product Separation Technologies For Butanol Bioprocessing From Oil Palm Frond, Nazira Mahmud, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

Environmental impact assessment is a crucial aspect of biofuels production to ensure that the process generates emissions within the designated limits. In typical cellulosic biofuel production process, the pretreatment and downstream processing stages were reported to require a high amount of chemicals and energy, thus generating high emissions. Cellulosic butanol production while using low moisture anhydrous ammonia (LMAA) pretreatment was expected to have a low chemical, water, and energy footprint, especially when the process was combined with more efficient downstream processing technologies. In this study, the quantification of environmental impact potentials from cellulosic butanol production plants was conducted with modeled ...


Life-Cycle Assessment (Lca) Of Different Pretreatment And Product Separation Technologies For Butanol Bioprocessing From Oil Palm Frond, Nazira Mahmud, Kurt A. Rosentrater Dec 2019

Life-Cycle Assessment (Lca) Of Different Pretreatment And Product Separation Technologies For Butanol Bioprocessing From Oil Palm Frond, Nazira Mahmud, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

Environmental impact assessment is a crucial aspect of biofuels production to ensure that the process generates emissions within the designated limits. In typical cellulosic biofuel production process, the pretreatment and downstream processing stages were reported to require a high amount of chemicals and energy, thus generating high emissions. Cellulosic butanol production while using low moisture anhydrous ammonia (LMAA) pretreatment was expected to have a low chemical, water, and energy footprint, especially when the process was combined with more efficient downstream processing technologies. In this study, the quantification of environmental impact potentials from cellulosic butanol production plants was conducted with modeled ...


Assessing Plant Performance In The Enviratron, Yin Bao, Scott Zarecor, Dylan Shah, Taylor Tuel, Darwin A. Campbell, Antony V. E. Chapman, David Imberti, Daniel Kiekhaefer, Henry Imberti, Thomas Lubberstedt, Yanhai Yin, Dan Nettleton, Carolyn J. Lawrence-Dill, Steven A. Whitham, Lie Tang, Stephen H. Howell Dec 2019

Assessing Plant Performance In The Enviratron, Yin Bao, Scott Zarecor, Dylan Shah, Taylor Tuel, Darwin A. Campbell, Antony V. E. Chapman, David Imberti, Daniel Kiekhaefer, Henry Imberti, Thomas Lubberstedt, Yanhai Yin, Dan Nettleton, Carolyn J. Lawrence-Dill, Steven A. Whitham, Lie Tang, Stephen H. Howell

Agricultural and Biosystems Engineering Publications

Background: Assessing the impact of the environment on plant performance requires growing plants under controlled environmental conditions. Plant phenotypes are a product of genotype × environment (G × E), and the Enviratron at Iowa State University is a facility for testing under controlled conditions the effects of the environment on plant growth and development. Crop plants (including maize) can be grown to maturity in the Enviratron, and the performance of plants under different environmental conditions can be monitored 24 h per day, 7 days per week throughout the growth cycle.

Results: The Enviratron is an array of custom-designed plant growth chambers that ...


Headland Turning Optimisation For Agricultural Vehicles And Those With Towed Implements, Xuyong Tu, Lie Tang Nov 2019

Headland Turning Optimisation For Agricultural Vehicles And Those With Towed Implements, Xuyong Tu, Lie Tang

Agricultural and Biosystems Engineering Publications

As an essential part of field coverage path planning process, mobile agricultural field equipment headland turning is a process that should be done in a manner that can maximise the equipment’s operational efficiency through minimising the time or travel distance during the turning. However, this headland turning trajectory optimisation task represents a challenging dynamic nonlinear optimisation problem which is difficult to solve by using traditional indirect numerical methods. In this research, we investigated the possibility of using direct numerical methods to solve such a nonlinear optimisation problem in a restricted parameter neighborhood with constraints. We developed the kinematic models ...


Pilot-Scale Assessment Of A Novel Farrowing Creep Area Supplementary Heat Source, Benjamin C. Smith, Brett C. Ramirez, Steven J. Hoff, Laura L. Greiner Nov 2019

Pilot-Scale Assessment Of A Novel Farrowing Creep Area Supplementary Heat Source, Benjamin C. Smith, Brett C. Ramirez, Steven J. Hoff, Laura L. Greiner

Agricultural and Biosystems Engineering Publications

Pre-weaning morality (PWM) is attributed to a poor creep area microclimate and causes major economic and productivity losses for the US swine industry. Piglets need supplementary heat to overcome a high surface area to body weight ratio and minimal thermoregulation. A pilot-scale study was conducted to evaluate a semi-enclosed heated microclimate (SEHM) as a supplementary heat source for farrowing creep areas over six farrowing cycles (from January to July 2019) in two rooms with 24 farrowing stalls in each room. Six SEHMs (each SEHM covers two stalls) were randomly distributed to each room and compared to heat lamps (HLs) for ...


A Meta-Analysis Of Global Fungal Distribution Reveals Climate-Driven Patterns, Tomáš Větrovský, Petr Kohout, Martin Kopecký, Antonin Machac, Matěj Man, Barbara Doreen Bahnmann, Vendula Brabcová, Jinlyung Choi, Lenka Meszárošová, Zander Rainier Human, Clémentine Lepinay, Salvador Lladó, Rubén López-Mondéjar, Tijana Martinović, Tereza Mašínová, Daniel Morais, Diana Navrátilová, Iñaki Odriozola, Martina Štursová, Karel Švec, Vojtěch Tláskal, Michaela Urbanová, Joe Wan, Lucia Žifčáková, Adina Howe, Joshua Ladau, Kabir Gabriel Peay, David Storch, Jan Wild, Petr Baldrian Nov 2019

A Meta-Analysis Of Global Fungal Distribution Reveals Climate-Driven Patterns, Tomáš Větrovský, Petr Kohout, Martin Kopecký, Antonin Machac, Matěj Man, Barbara Doreen Bahnmann, Vendula Brabcová, Jinlyung Choi, Lenka Meszárošová, Zander Rainier Human, Clémentine Lepinay, Salvador Lladó, Rubén López-Mondéjar, Tijana Martinović, Tereza Mašínová, Daniel Morais, Diana Navrátilová, Iñaki Odriozola, Martina Štursová, Karel Švec, Vojtěch Tláskal, Michaela Urbanová, Joe Wan, Lucia Žifčáková, Adina Howe, Joshua Ladau, Kabir Gabriel Peay, David Storch, Jan Wild, Petr Baldrian

Agricultural and Biosystems Engineering Publications

The evolutionary and environmental factors that shape fungal biogeography are incompletely understood. Here, we assemble a large dataset consisting of previously generated mycobiome data linked to specific geographical locations across the world. We use this dataset to describe the distribution of fungal taxa and to look for correlations with different environmental factors such as climate, soil and vegetation variables. Our meta-study identifies climate as an important driver of different aspects of fungal biogeography, including the global distribution of common fungi as well as the composition and diversity of fungal communities. In our analysis, fungal diversity is concentrated at high latitudes ...


Use Of Neural Networks To Identify Safety Prevention Priorities In Agro-Manufacturing Operations Within Commercial Grain Elevators, Fatemeh Davoudi Kakhki, Steven A. Freeman, Gretchen A. Mosher Nov 2019

Use Of Neural Networks To Identify Safety Prevention Priorities In Agro-Manufacturing Operations Within Commercial Grain Elevators, Fatemeh Davoudi Kakhki, Steven A. Freeman, Gretchen A. Mosher

Agricultural and Biosystems Engineering Publications

The grain handling industry plays a significant role in U.S. agriculture by storing, distributing, and processing a variety of agricultural commodities. Commercial grain elevators are hazardous agro-manufacturing work environments where workers are prone to severe injuries, due to the nature of the activities and workplace. Safety incidents in agro-manufacturing operations generally arise from a combination of factors, rather than a single cause, therefore, research on occupational incidents must look deeper into identifying the underlying causes, through the application of advanced analyses methods. In occupational safety, it is possible to estimate and predict probability of safety risks through developing artificial ...


The Biotic And Abiotic Carbon Monoxide Formation During Aerobic Co-Digestion Of Dairy Cattle Manure With Green Waste And Sawdust, Sylwia Stegenta-Dąbrowska, Grzegorz Drabczyński, Karolina Sobieraj, Jacek A. Koziel, Andrzej Białowiec Oct 2019

The Biotic And Abiotic Carbon Monoxide Formation During Aerobic Co-Digestion Of Dairy Cattle Manure With Green Waste And Sawdust, Sylwia Stegenta-Dąbrowska, Grzegorz Drabczyński, Karolina Sobieraj, Jacek A. Koziel, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

Carbon monoxide (CO), an air pollutant and a toxic gas to humans, can be generated during aerobic digestion of organic waste. CO is produced due to thermochemical processes, and also produced or consumed by cohorts of methanogenic, acetogenic, or sulfate-reducing bacteria. The exact mechanisms of biotic and abiotic formation of CO in aerobic digestion (particularly the effects of process temperature) are still not known. This study aimed to determine the temporal variation in CO concentrations during the aerobic digestion as a function of process temperature and activity of microorganisms. All experiments were conducted in controlled temperature reactors using homogeneous materials ...


Oxytree Pruned Biomass Torrefaction: Process Kinetics, Kacper Świechowski, Sylwia Stegenta-Dąbrowska, Marek Liszewski, Przemysław Bąbelewski, Jacek A. Koziel, Andrzej Białowiec Oct 2019

Oxytree Pruned Biomass Torrefaction: Process Kinetics, Kacper Świechowski, Sylwia Stegenta-Dąbrowska, Marek Liszewski, Przemysław Bąbelewski, Jacek A. Koziel, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

Oxytree is a fast-growing energy crop with C4 photosynthesis. In this research, for the first time, the torrefaction kinetic parameters of pruned Oxytree biomass (Paulownia clon in Vitro 112) were determined. The influence of the Oxytree cultivation method and soil class on the kinetic parameters of the torrefaction was also investigated. Oxytree pruned biomass from a first-year plantation was subjected to torrefaction within temperature range from 200 to 300 °C and under anaerobic conditions in the laboratory-scale batch reactor. The mass loss was measured continuously during the process. The relative mass loss increased from 1.22% to 19.56% with ...


Nutrition At The Crossroads: Food At The Intersection Of Environmental, Economic, And Social Sustainability, Kurt A. Rosentrater, Laetitia Palmade, Elif Kongar Oct 2019

Nutrition At The Crossroads: Food At The Intersection Of Environmental, Economic, And Social Sustainability, Kurt A. Rosentrater, Laetitia Palmade, Elif Kongar

Agricultural and Biosystems Engineering Publications

Societies around the world are at a critical juncture. As the planetary population grows, there are increasing demands for expanding available food, more nutritious and healthy foods, and contemporaneously the need for greater efficiencies and decreased impacts upon the environment.

The sustainability of food production systems is a complex issue that requires a global and multidisciplinary approach, combining not only agronomy, ecology, nutrition, epidemiology, processing, energy use, but also marketing and sociology. It is within this context that this special issue aims to illustrate, through review articles, case studies, as well as modeling and simulation studies, some means of understanding ...


Design And Validation Of A Mobile Air Filter Testing Laboratory For Animal Agricultural Applications, Benjamin C. Smith, Brett C. Ramirez, Steven J. Hoff, Jay D. Harmon, John P. Stinn Oct 2019

Design And Validation Of A Mobile Air Filter Testing Laboratory For Animal Agricultural Applications, Benjamin C. Smith, Brett C. Ramirez, Steven J. Hoff, Jay D. Harmon, John P. Stinn

Agricultural and Biosystems Engineering Publications

The US swine industry is shifting towards filtered fresh-air ventilation systems that use pleated filters to improve breeding herd health and reduce airborne disease outbreak frequency. Loaded filters reduce airflow causing a poor environment and elevated energy use. Typical axial fans cannot efficiently maintain the rated differential pressure (DP; 100 Pa) for pleated filters; hence, a lower design filter DP (37 Pa) is used and consequently, more filters are required to achieve design maximum ventilation. Large, common filter banks for multiple staged fans presents significant challenges in using continuous DP measurement to assess filter life, making it impossible to separate ...


Investigating The Dispersal Of Antibiotic Resistance Associated Genes From Manure Application To Soil And Drainage Waters In Simulated Agricultural Farmland Systems, Schuyler D. Smith, Phillip Colgan, Fan Yang, Elizabeth L. Rieke, Michelle L. Soupir, Thomas B. Moorman, Heather K. Allen, Adina Howe Sep 2019

Investigating The Dispersal Of Antibiotic Resistance Associated Genes From Manure Application To Soil And Drainage Waters In Simulated Agricultural Farmland Systems, Schuyler D. Smith, Phillip Colgan, Fan Yang, Elizabeth L. Rieke, Michelle L. Soupir, Thomas B. Moorman, Heather K. Allen, Adina Howe

Agricultural and Biosystems Engineering Publications

Manure from animals that have been treated with antibiotics is often used to fertilize agricultural soils and its application has previously been shown to enrich for genes associated with antibiotic resistance in agroecosystems. To investigate the magnitude of this effect, we designed a column experiment simulating manure-treated agricultural soil that utilizes artificial subsurface drainage to determine the duration and extent which this type of manure fertilization impacts the set of genes associated with antibiotic resistance in drainage water. We classified ARGs in manure-treated drainage effluent water by its source of origin. Overall, we found that 61% and 7% of the ...


Segmentation Of Severe Occupational Incidents In Agribusiness Industries Using Latent Class Clustering, Fatemeh Davoudi Kakhki, Steven A. Freeman, Gretchen A. Mosher Sep 2019

Segmentation Of Severe Occupational Incidents In Agribusiness Industries Using Latent Class Clustering, Fatemeh Davoudi Kakhki, Steven A. Freeman, Gretchen A. Mosher

Agricultural and Biosystems Engineering Publications

One of the principle objectives in occupational safety analysis is to identify the key factors that affect the severity of an incident. To identify risk groups of occupational incidents and the factors associated with them, statistical analysis of workers’ compensation claims data is performed using latent class clustering, for the segmentation of 1031 severe occupational incidents in agribusiness industries in the Midwest region of the United States between 2008–2016. In this study, severe incidents are those with workers’ compensation costs equal to or greater than $100,000 (USD). Based on the latent class clustering results, three risk groups are ...


Global Validation Of Columnar Water Vapor Derived From Eos Modis-Maiac Algorithm Against The Ground-Based Aeronet Observations, Vitor S. Martins, Alexei Lyapustin, Yujie Wang, David M. Giles, Alexander Smirnov, Ilya Slutsker, Sergey Korkin Sep 2019

Global Validation Of Columnar Water Vapor Derived From Eos Modis-Maiac Algorithm Against The Ground-Based Aeronet Observations, Vitor S. Martins, Alexei Lyapustin, Yujie Wang, David M. Giles, Alexander Smirnov, Ilya Slutsker, Sergey Korkin

Agricultural and Biosystems Engineering Publications

The water vapor is a relevant greenhouse gas in the Earth's climate system, and satellite products become one of the most effective way to characterize and monitor the columnar water vapor (CWV) content at global scale. Recently, a new product (MCD19) was released as part of MODIS (Moderate Resolution Imaging Spectroradiometer) Collection 6 (C6). This operational product from Multi-Angle Implementation for Atmospheric Correction (MAIAC) algorithm includes a high 1 km resolution CWV retrievals. This study presents the first global validation of MAIAC C6 CWV obtained from MODIS MCD19A2 product. This evaluation was performed using Aerosol Robotic Network (AERONET) observations ...


The Proof-Of-Concept Of Biochar Floating Cover Influence On Water Ph, Zhanibek Meiirkhanuly, Jacek A. Koziel, Andrzej Białowiec, Chumki Banik, Robert C. Brown Aug 2019

The Proof-Of-Concept Of Biochar Floating Cover Influence On Water Ph, Zhanibek Meiirkhanuly, Jacek A. Koziel, Andrzej Białowiec, Chumki Banik, Robert C. Brown

Agricultural and Biosystems Engineering Publications

Studies have shown that biochar has the potential to remove organic and inorganic contaminants from wastewater. pH is known to have a crucial role in the transformation of pollutants. In this research, we explore the feasibility of using biochars properties to control the pH near the water–air interface, so the gaseous emissions from water (or wastewater) could be mitigated. This study aimed to test the effects of a thin layer biochar addition on the spatial and temporal variation of water pH. Two types of biochar and water were tested. Highly alkaline porous (HAP; pH 9.2) biochars made of ...


Estimating Economic And Environmental Impacts Of Red-Wine-Making Processes In The Usa, Congmu Zhang, Kurt A. Rosentrater Aug 2019

Estimating Economic And Environmental Impacts Of Red-Wine-Making Processes In The Usa, Congmu Zhang, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Publications

The goal of this study was to examine cost impacts using techno-economic analysis (TEA) and environmental impacts using life-cycle assessment (LCA) for the production of red wine. Three production scales, denoted as “small” (5000 gal per year), “medium” (50,000 gal per year), and “large” (500,000 gal per year) were chosen for analysis. For example, the consumption of water, energy, greenhouse gas emissions, and solid waste generation were considered in order to estimate environmental impacts. A spreadsheet-based economic model was also developed. The results of the LCA and TEA were compared amongst all production scales. The results of the ...


A Review Of Biochar Properties And Their Utilization In Crop Agriculture And Livestock Production, Kajetan Kalus, Jacek A. Koziel, Sebastian Opalinski Aug 2019

A Review Of Biochar Properties And Their Utilization In Crop Agriculture And Livestock Production, Kajetan Kalus, Jacek A. Koziel, Sebastian Opalinski

Agricultural and Biosystems Engineering Publications

When it comes to the use of biochar in agriculture, the majority of research conducted in the last decade has focused on its application as a soil amendment and for soil remediation. This treatment improves soil quality, increases crops yields, and sequestrates atmospheric carbon to the soil. Another widely studied aspect connecting biochar with agriculture is the composting processes of various agricultural waste with the addition of biochar. Obtaining the material via the pyrolysis of agricultural waste, including animal manure, has also been investigated. However, given the remarkable properties of biochar, its application potential could be utilized in other areas ...


Valorization Of Sewage Sludge Via Gasification And Transportation Of Compressed Syngas, Marek Mysior, Maciej Tomaszewski, Paweł Stepien, Jacek A. Koziel, Andrzej Białowiec Aug 2019

Valorization Of Sewage Sludge Via Gasification And Transportation Of Compressed Syngas, Marek Mysior, Maciej Tomaszewski, Paweł Stepien, Jacek A. Koziel, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

A significant challenge in the utilization of alternative gaseous fuels is to use their energy potential at the desired location, considering economic feasibility and sustainability. A potential solution is a compression, transportation in pressure tanks, and generation of electricity and heat directly at the recipient. In this research, the potential for generating syngas from abundant waste substrates was analyzed. The sewage sludge (SS) was used as an example of a bulky and abundant resource that could be valorized via gasification, compression, and transport to end-users in containers. A model was developed, and theoretical analyses were completed to examine the influence ...


Use Of Logistic Regression To Identify Factors Influencing The Post-Incident State Of Occupational Injuries In Agribusiness Operations, Fatemeh Davoudi Kakhki, Steven A. Freeman, Gretchen A. Mosher Aug 2019

Use Of Logistic Regression To Identify Factors Influencing The Post-Incident State Of Occupational Injuries In Agribusiness Operations, Fatemeh Davoudi Kakhki, Steven A. Freeman, Gretchen A. Mosher

Agricultural and Biosystems Engineering Publications

Agribusiness industries are among the most hazardous workplaces for non-fatal occupational injuries. The term “post-incident state” is used to describe the health status of an injured person when a non-fatal occupational injury has occurred, in the post-incident period when the worker returns to work, either immediately with zero days away from work (medical state) or after a disability period (disability state). An analysis of nearly 14,000 occupational incidents in agribusiness operations allowed for the classification of the post-incident state as medical or disability (77% and 23% of the cases, respectively). Due to substantial impacts of occupational incidents on labor-market ...


Screening Of Microbial Volatile Organic Compounds For Detection Of Disease In Cattle: Development Of Lab-Scale Method, Devin L. Maurer, Christine K. Ellis, Tyler C. Thacker, Somchai Rice, Jacek A. Koziel, Pauline Nol, Kurt C. Vercauteren Aug 2019

Screening Of Microbial Volatile Organic Compounds For Detection Of Disease In Cattle: Development Of Lab-Scale Method, Devin L. Maurer, Christine K. Ellis, Tyler C. Thacker, Somchai Rice, Jacek A. Koziel, Pauline Nol, Kurt C. Vercauteren

Agricultural and Biosystems Engineering Publications

The primary hurdle for diagnosis of some diseases is the long incubation required to culture and confirm the presence of bacteria. The concept of using microbial VOCs as “signature markers” could provide a faster and noninvasive diagnosis. Finding biomarkers is challenging due to the specificity required in complex matrices. The objectives of this study were to (1) build/test a lab-scale platform for screening of microbial VOCs and (2) apply it to Mycobacterium avium paratuberculosis; the vaccine strain of M. bovis Bacillus Calmette-Guérin; and M. kansasii to demonstrate detection times greater those typically required for culture. SPME-GC-MS was used for ...


Characterizing The Soil Microbiome And Quantifying Antibiotic Resistance Gene Dynamics In Agricultural Soil Following Swine Cafo Manure Application, Edward Lopatto, Jinlyung Choi, Alfredo Colina, Lanying Ma, Adina Howe, Shannon Hinsa-Leasure Aug 2019

Characterizing The Soil Microbiome And Quantifying Antibiotic Resistance Gene Dynamics In Agricultural Soil Following Swine Cafo Manure Application, Edward Lopatto, Jinlyung Choi, Alfredo Colina, Lanying Ma, Adina Howe, Shannon Hinsa-Leasure

Agricultural and Biosystems Engineering Publications

As agriculture industrializes, concentrated animal feeding operations (CAFOs) are becoming more common. Feces from CAFOs is often used as fertilizer on fields. However, little is known about the effects manure has on the soil microbiome, which is an important aspect of soil health and fertility. In addition, due to the subtherapeutic levels of antibiotics necessary to keep the animals healthy, CAFO manure has elevated levels of antibiotic resistant bacteria. Using 16s rRNA high-throughput sequencing and qPCR, this study sought to determine the impact of swine CAFO manure application on both the soil microbiome and abundance of select antibiotic resistance genes ...