Education Commons^™

Harnessing Wastewater For Renewable Energy (2013-2), Aaron Adalja, Chalida U-Tapao

Aaron Adalja

This case study explores the options for using wastewater to produce renewable energy in the context of a public wastewater treatment plant. It provides an opportunity for students to synthesize knowledge from resource economics, engineering, environmental science, agriculture, and public policy to develop a transdisciplinary approach to a socio-environmental issue. The case is designed for upper division undergraduate courses in resource economics or environmental engineering, but several modifications are provided graduate course applications. Students assume the role of a newly hired analyst at a consulting firm in Washington, DC, that specializes in renewable energy solutions. They are charged with proposing …

Work Integrated Learning In Stem In Australian Universities: Final Report: Submitted To The Office Of The Chief Scientist, Daniel Edwards, Kate Perkins, Jacob Pearce, Jennifer Hong

Kate Perkins

The Australian Council for Educational Research (ACER) undertook this study for the Office of the Chief Scientist (OCS). It explores the practice and application of Work Integrated Learning (WIL) in STEM, with a particular focus on natural and physical sciences, information technology, and agriculture departments in Australian universities. The project involved a detailed ‘stocktake’ of WIL in practice in these disciplines, with collection of information by interview, survey instruments, consultation with stakeholders and literature reviews. Every university in Australia was visited as part of this project, with interviews and consultation sessions gathering insight from more than 120 academics and support …

Work Integrated Learning In Stem In Australian Universities: Final Report: Submitted To The Office Of The Chief Scientist, Daniel Edwards, Kate Perkins, Jacob Pearce, Jennifer Hong

Dr Daniel Edwards

The Australian Council for Educational Research (ACER) undertook this study for the Office of the Chief Scientist (OCS). It explores the practice and application of Work Integrated Learning (WIL) in STEM, with a particular focus on natural and physical sciences, information technology, and agriculture departments in Australian universities. The project involved a detailed ‘stocktake’ of WIL in practice in these disciplines, with collection of information by interview, survey instruments, consultation with stakeholders and literature reviews. Every university in Australia was visited as part of this project, with interviews and consultation sessions gathering insight from more than 120 academics and support …

Work Integrated Learning In Stem In Australian Universities: Final Report: Submitted To The Office Of The Chief Scientist, Daniel Edwards, Kate Perkins, Jacob Pearce, Jennifer Hong

Dr Jacob Pearce

The Australian Council for Educational Research (ACER) undertook this study for the Office of the Chief Scientist (OCS). It explores the practice and application of Work Integrated Learning (WIL) in STEM, with a particular focus on natural and physical sciences, information technology, and agriculture departments in Australian universities. The project involved a detailed ‘stocktake’ of WIL in practice in these disciplines, with collection of information by interview, survey instruments, consultation with stakeholders and literature reviews. Every university in Australia was visited as part of this project, with interviews and consultation sessions gathering insight from more than 120 academics and support …

Work Integrated Learning In Stem In Australian Universities: Final Report: Submitted To The Office Of The Chief Scientist, Daniel Edwards, Kate Perkins, Jacob Pearce, Jennifer Hong

Higher education research

The Australian Council for Educational Research (ACER) undertook this study for the Office of the Chief Scientist (OCS). It explores the practice and application of Work Integrated Learning (WIL) in STEM, with a particular focus on natural and physical sciences, information technology, and agriculture departments in Australian universities. The project involved a detailed ‘stocktake’ of WIL in practice in these disciplines, with collection of information by interview, survey instruments, consultation with stakeholders and literature reviews. Every university in Australia was visited as part of this project, with interviews and consultation sessions gathering insight from more than 120 academics and support …

G05-1579 Using Modified Atmometers (EtGage®) For Irrigation Management, Suat Irmak, Jose O, Payero, Derrel L. Martin

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes the atmometer (evapotranspiration gage) and explains how it can be used for irrigation scheduling. Examlpes are provided to show how information collected with an atmometer can be used to estimate crop water use for corn and soybean.

Ec05-774 Recommendations For Harvesting Dry Edible Beans With The John Deere Walker Series Combine, John E. Watkins

University of Nebraska-Lincoln Extension: Historical Materials

Maximum combine performance — characterized by low mechanical seed damage, low field loss, and high field capacity — requires optimization of combine equipment, combine adjustments, and field operating practices. This Extension Circular provides information to maximize performance of the John Deere Walker Series combine in dry edible beans in typical western Nebraska field conditions. These recommendations are presented in three sections, covering initial to more advanced assessments and adjustments.

Ec05-773 Recommendations For Harvesting Dry Edible Beans With The John Deere Sts Series Combine, John A. Smith

University of Nebraska-Lincoln Extension: Historical Materials

Maximum combine performance — characterized by low mechanical seed damage, low field loss, and high field capacity — requires optimization of combine equipment, combine adjustments, and field operating practices. This Extension Circular provides information to maximize performance of the John Deere STS series combine in dry edible beans in typical western Nebraska field conditions. These recommendations are presented in three sections, covering initial to more advanced assessments and adjustments.

Nf03-589 New Onsite Wastewater Treatment Law Protects Nebraska's People And Environment, Janet R. Hygnstrom, Sharon Skipton, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

New Law Requires Certification to Perform On-site Wastewater Treatment Work

Beginning Jan. 1, 2004, a new Nebraska law allows only certified professionals or Nebraska-licensed professional engineers to perform work on on-site wastewater treatment systems (septic systems and individual lagoons). There is a concern that failing septic systems are having a negative impact on the environment and creating potentially harmful health conditions. This legislation will protect public health and the environment by authorizing development of a certification system so that people in the industry have, and demonstrate, the knowledge base necessary to minimize risks.

This NebFact discusses what this law will …

Ec03-702 Precision Agriculture: Applications Of Remote Sensing In Site-Specific Management, Viacheslav I. Adamchuk, Richard L. Perk, James S. Schepers

University of Nebraska-Lincoln Extension: Historical Materials

Precision farming is an emerging agricultural technology that involves managing each crop input on a site-specific basis to reduce waste, increase profits, and maintain the quality of the environment. Remote sensing is a technology that can be used to obtain various spatial layers of information about soil and crop conditions. It allows detection and/or characterization of an object, series of objects, or landscape without having the sensor in physical contact.

Nf02-505 Drinking Water: Chloramines Waters Disinfection In Omaha Metropolitan Utilities District, Sharon Skipton, Bruce I. Dvorak

University of Nebraska-Lincoln Extension: Historical Materials

Bacteria and other disease-causing organisms in drinking water can cause intestinal infections, dysentery, and a variety of other illnesses. Water disinfection reduces disease-causing organisms and prevents the transmission of disease. This publication discusses the disinfection process used by Metropolitan Utilities District and how it will change in 2002.

Ec01-798 Residential On-Site Wastewater Treatment: An Overview, Janet R. Hygnstrom, Wayne Woldt, Sharon Skipton

University of Nebraska-Lincoln Extension: Historical Materials

This publication will answer many questions that homeowners or potential homeowners, realtors and lenders may have about residential on-site wastewater treatment systems. Information is based on Title 124: Rules and Regulations for the Design, Operation and Maintenance of On-site WastewaterTreatment Systems of the Nebraska Department of Environmental Quality (NDEQ), which requires that a dwelling or establishment that generates wastewater have an on-site wastewater treatment system in accordance with those regulations, or be connected to a public wastewater treatment system. An establishment is a house, building, structure, or place that generates more than 1,000 gallons of wastewater per day, generates non-domestic …

Ec01-157 Precision Agriculture: Untangling The Gps Data String, Viacheslav I. Adamchuk

University of Nebraska-Lincoln Extension: Historical Materials

Most people associate precision farming or site-specific management with the global positioning system (GPS). It is used to locate the antenna of aGPS receiver on Earth. GPS provides the opportunity to record a set of geographic coordinates that specify a particular field location. Therefore, field data collected using GPS technology is georeferenced. Processing of these data is complicated, and software packages designed for precision farming applications have built-in capabilities to interpret the GPS receiver output. However, some simple operations can be performed using standard office software. In this case, it is necessary to know the basics behind GPS data. The …

G97-1340 Firming Irrigation Furrows To Improve Irrigation Performance (Revised November 1999), Dean E. Eisenhauer, C. Dean Yonts

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes how using a furrow firming wheel improves furrow irrigation performance.

Nearly half of the irrigated acres in Nebraska are furrow irrigated. Higher pumping costs, water restrictions and water shortages are all factors encouraging efficiency-improving irrigation practices. Generally, reduced efficiency with furrow irrigation occurs in two ways: runoff or deep percolation. Although hard to eliminate, runoff can be controlled by: tailwater reuse systems; changing furrow stream size; or changing irrigation set time. Deep percolation is the loss of water below the root zone. The amount of deep percolation caused by irrigation is difficult to estimate unless irrigation application …

G96-1279 Drinking Water: Nitrate-Nitrogen (Revised November 1998), Paul J. Jasa, Sharon Skipton, David L. Varner, Delynn Hay

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses practices recommended to manage nitrate-nitrogen in a domestic water supply. Many Nebraskans have questions about the impact of nitrate in their drinking water. Water quality monitoring shows that nitrate is present in groundwater throughout much of Nebraska and that concentrations are increasing in some areas. Nitrogen is essential for all living things as it is an essential component of protein. Nitrogen exists in the environment in many forms and changes forms as it moves through the nitrogen cycle. However, excessive concentrations of nitrate-nitrogen in drinking water can be hazardous to health, especially for infants and pregnant women.

G96-1296 Gear Up And Throttle Down -- Saving Fuel, Robert Grisso, David P. Shelton, Kenneth Von Bargen

University of Nebraska-Lincoln Extension: Historical Materials

"Gear Up and Throttle Down" is a fuel-saving practice suitable for light drawbar loads (less than 65 percent of full power) when reduced PTO speed is not a problem.

For the most efficient operation, a tractor's engine should be operated near its rated capacity. However, there are many field operations (such as light tillage, planting, cultivating, and hay raking) that do not require full tractor power. This is especially true when older implements, which were sized for a smaller tractor, are used with higher horsepower tractors. Also, many operations should be performed at a fixed field speed.

For these lighter …

Tractor Air Conditioning, Von Jarrett

All Current Publications

No abstract provided.

Ec95-740 Pollution Prevention: A Tool Kit For Metal Finishers, Janet R. Hygnstrom, Wayne Woldt, Mohamed F. Dahab

University of Nebraska-Lincoln Extension: Historical Materials

Here's a Look at What's Ahead in the Pollution Prevention: A Tool Kit for Metal Finishers:

• Pollution Prevention Contacts for EPA Regions VII and VIII>
• Why the Concern About Waste?>
• Getting Off to a Good Start>
• Hazardous Waste>
• Material Safety Data Sheets>
• Material Safety Data Sheets — A Closer Look>
• Pollution Prevention Strategies for Your Business, Through Changes in: Housekeeping and Maintenance, Inventory, Basic Operations, Equipment, Raw Materials, Process Technology, Waste Exchanges and Recycling>
• Ready to Begin Preventing Pollution?>
• Yard Waste, A Growing Concern>
• Blow Your Horn! Publicize Your Pollution …

G95-1266 Environmental Considerations For Manure Application System Selection, Richard K. Koelsch

University of Nebraska-Lincoln Extension: Historical Materials

Selection and operation of manure application equipment must consider environmental issues along with materials handling and economic factors.

Land application of livestock manure faces growing scrutiny because of potential surface and groundwater contamination and odor nuisances. Producers must consider features of a manure application system that enhance their ability to use manure's nutrients, and provide ways to minimize nuisances experienced by neighbors during manure application.

Ec95-743 Pollution Prevention: A Tool Kit For Autobody Repair Shops, Janet R. Hygnstrom, Wayne Woldt, Mohamed F. Dahab

University of Nebraska-Lincoln Extension: Historical Materials

Would you like to:

• Reduce your operating costs by using fewer materials and supplies?
• Reduce hazardous and nonhazardous waste transportation and disposal costs?
• Reduce liability and risks associated with hazardous waste?
• Reduce the paperwork and record keeping requirements associated with hazardous waste?
• Improve workplace safety and employee health?
• Help safeguard the environment?
• Improve your company's image?
• Increase your company's business activities?

If you answered "Yes," to any of the above questions, you may want to look at the materials in this pollution prevention tool kit.

G95-1267 Manure Applicator Calibration, Richard K. Koelsch

University of Nebraska-Lincoln Extension: Historical Materials

Calibration methods for manure spreaders are discussed here.

Applying manure to land often is considered a waste disposal process rather than a fertilization process. Applying manure as a waste product is causing growing concerns about groundwater and surface water contamiantion. Increasing commercial fertilizer costs and regulatory mandates will encourage application of manure as a nutrient source in the future.

G95-1261 Five Strategies For Extending Machinery Life, Robert D. Grisso, Steven R. Melvin

University of Nebraska-Lincoln Extension: Historical Materials

Machinery ownership and operation is a major crop and livestock production cost. Several items combined can significantly affect costs, improve machine reliability and improve profit margins.

How to Get Maximum Machinery Life

This fact sheet discusses five strategies to achieve maximum farm machinery life. These strategies are: machinery maintenance, oil analysis, machinery storage, engine tune-ups, and avoiding modification of tractor engines.

Ec95-739 Pollution Prevention: A Tool Kit For Farm Cooperatives, Janet R. Hygnstrom, Wayne Woldt, Mohamed F. Dahab

University of Nebraska-Lincoln Extension: Historical Materials

Would you like to:

• Reduced your operating costs by using fewer materials and supplies
• Reduce hazardous and nonhazardous waste transportation and disposal costs
• Reduce liability and risks associated with hazardous waste?
• Reduce the paperwork and record keeping requirements associated with hazardous waste?
• Improve workplace safety and employee health?
• Help safeguard the environment?
• Improve your company's image?
• Increase your company's business activities?

If you answered "Yes," to any of the above questions, you may want to look at the materials in this pollution prevention tool kit.

Ec95-742 Pollution Prevention: A Tool Kit For Vehicle Maintenance Shops, Janet R. Hygnstrom, Wayne Woldt, Mohamed F. Dahab

University of Nebraska-Lincoln Extension: Historical Materials

Would you like to:

• Reduce your operating costs by using fewer materials and supplies?
• Reduce hazardous and nonhazardous waste transportation and disposal costs?
• Reduce liability and risks associated with hazardous waste?
• Reduce the paperwork and record keeping requirements associated with hazardous waste?
• Improve workplace safety and employee health?
• Help safeguard the environment?
• Improve your company's image?
• Increase your company's business activities?

If you answered "Yes," to any of the above questions, you may want to look at the materials in this pollution prevention tool kit.

G94-1217 Rodent-Proof Construction: Drains And Feeding Equipment (Revised November 2003), Scott E. Hygnstrom, Dallas R. Virchow, Dennis M. Ferraro, Richard R. Stowell

University of Nebraska-Lincoln Extension: Historical Materials

Techniques are described in this NebGuide for excluding rodents from drains, pipes, feed bunks, bins, and storage containers.

Rodents often travel along pipes, electrical cables, conduits, drains, and other equipment to gain access to buildings used for housing livestock and storing feed. Rodent-proof materials should be installed to prevent access to buildings along these routes. Additional methods to consider in an integrated pest management (IPM) program include sanitation, toxicants, and trapping.

Ec95-744 Design And Management Of Storage Containment Of Fertilizer And Pesticides, Robert D. Grisso, Delynn Hay, Gerald R. Bodman

University of Nebraska-Lincoln Extension: Historical Materials

Storage, handling and disposal of pesticides and fertilizers have been identified by state and federal agencies as practices that create high risks to surface and groundwater quality. This circular is to assist those who need secondary containment for fertilizers and pesticides. This will help develop a construction plan that should meet the State of Nebraska Containment Regulations and assess facility needs, construction materials, size requirements and management needs.

Ec94-737 Calibrating Anhydrous Ammonia Applicators, William L. Kranz, Charles A. Shapiro, Robert Grisso

University of Nebraska-Lincoln Extension: Historical Materials

Application of agricultural chemicals has come under increased scrutiny from environmental groups and federal regulatory agencies. Nitrogen fertilizer is used in greater quantities than any other agricultural chemical. It also is the contaminant most often found in Nebraska groundwater. Accurate application of nitrogen is important from an environmental and economic viewpoint. Approximately 800 million pounds of nitrogen are applied to 12 million acres of Nebraska cropland each year. Nitrogen applied as anhydrous ammonia (NH₃) accounts for around 40 percent of the total nitrogen applied.

G90-990 Explosion Venting And Suppression Of Bucket Elevator Legs, David D. Jones

University of Nebraska-Lincoln Extension: Historical Materials

Explosion vents and explosion suppression devices limit the danger and damage associated with grain dust explosions. This NebGuide discusses these devices and design guidelines for application on bucket elevator legs.

The bucket elevator leg has been identified as a major source of grain dust explosions. As a bucket elevator leg conveys grain, the elements necessary for a grain dust explosion are possible. Fuel (grain dust in suspension above the minimum explosive concentration), oxygen and confinement are inherent inside a functioning bucket elevator leg. Introduction of an ignition source will initiate a grain dust explosion.

G90-990 Explosion Venting And Suppression Of Bucket Elevator Legs, David Jones

University of Nebraska-Lincoln Extension: Historical Materials

Explosion vents and explosion suppression devices limit the danger and damage associated with grain dust explosions. This NebGuide discusses these devices and design guidelines for application on bucket elevator legs.

The bucket elevator leg has been identified as a major source of grain dust explosions. As a bucket elevator leg conveys grain, the elements necessary for a grain dust explosion are possible. Fuel (grain dust in suspension above the minimum explosive concentration), oxygen and confinement are inherent inside a functioning bucket elevator leg. Introduction of an ignition source will initiate a grain dust explosion.

Ec89-724 Irrigation Scheduling Using Tensiometers In Sandy Soils, William L. Kranz, Thomas Dorn, Dean E. Eisenhauer

University of Nebraska-Lincoln Extension: Historical Materials

Monitoring soil moisture is fundamental to determining how much irrigation water should be applied and when the soil is able to store the amount of water to be applied. Establishing when and how much water should be applied is often referred to as irrigation scheduling.

This extension circular discusses soil moisture terms; what is a tensiometer, its installation and use; and worksheet.