Education Commons^™

Agen/Bsen 344: Biological And Environmental Transport Processes—A Peer Review Of Teaching Project Benchmark Portfolio, Shadi F. Othman

UNL Faculty Course Portfolios

The course I am providing a portfolio for is BSEN/AGEN 344 which is a required course for all our undergraduate students. The Department provides an assessment for the course to align itself with the ABET's Accreditation Process. I taught the course in Spring 2012 adapting a new Team Based Learning Approach. I have three main objective from my portfolio: (1) refine my methods in documenting the linkage between my course goals and assessment measures, (2) document the efficacy of team based learning approach, (3) refine team based learning approach for the current course and adapt the approach to future courses, …

G08-1489 Drinking Water Treatment: Activated Carbon Filtration, Bruce I. Dvorak, Sharon Skipton

University of Nebraska-Lincoln Extension: Historical Materials

Activated carbon filtration can effectively reduce certain organic compounds and chlorine in drinking water. It can also reduce the quantity of lead, dissolved radon, and harmless taste- and odor-causing compounds. This 2008 NebGuide discusses the principles, processes, and requirements of activated carbon filtration systems for the domestic (household) user.

G08-1333 Drinking Water: Lead, Sharon Skipton, Bruce I. Dvorak, Wayne Woldt, Steve Drda

University of Nebraska-Lincoln Extension: Historical Materials

Small quantities of lead can be a serious health concern, especially for infants, children, and developing fetuses. This 2008 NebGuide discusses how to safely manage lead in a domestic water supply.

G08-1614 Drinking Water: Certified Water Testing Laboratories In Nebraska, Sharon Skipton, Bruce I. Dvorak, Wayne Woldt

University of Nebraska-Lincoln Extension: Historical Materials

This 2008 NebGuide explains the certification process water testing laboratories follow, and lists certified government and commercial operated laboratories.

G08-1493 Drinking Water Treatment: Distillation, Bruce I. Dvorak, Sharon Skipton

University of Nebraska-Lincoln Extension: Historical Materials

Homeowners are increasingly concerned about contaminants in their water supply that may affect health or cause taste, odor, or nuisance problems. Distillation, one of the oldest methods of water treatment, is an effective method for reducing many impurities found in water. This 2008 NebGuide discusses the process and related equipment used for household drinking water treatment by distillation.

G08-1492 Drinking Water Treatment: Sediment Filtration, Bruce I. Dvorak, Sharon Skipton

University of Nebraska-Lincoln Extension: Historical Materials

Sediment filters remove suspended matter such as sand, silt, loose scale, clay or organic material from the water. Untreated water passes through a filter medium which traps suspended matter on the surface or within the filter. This 2008 NebGuide discusses the principles, processes, and requirements of cartridge sediment filtration systems for the household user.

G08-1784 Drinking Water: Nitrate-Nitrogen, Sharon Skipton, Wayne Woldt, Bruce I. Dvorak, Ralph Pulte

University of Nebraska-Lincoln Extension: Historical Materials

Nitrate-nitrogen is sometimes present in drinking water. At certain levels it can present a health risk. Properly locating and constructing wells along with regularly testing can help manage risk and are discussed in this 2008 NebGuide.

G07-1714 Drinking Water: Iron And Manganese, Bruce I. Dvorak, Sharon Skipton, Wayne Woldt, Gyanendra Prasai

University of Nebraska-Lincoln Extension: Historical Materials

Common water contaminants iron and manganese are not health hazards but can cause offensive taste, appearance and staining. Testing and treatment options are available for public and private water supplies and are discussed here in this 2007 NebGuide.

G07-1704 Chloramines Water Disinfection: Omaha Metropolitan Utilities District And Lincoln Water System, 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 2007 NebGuide discusses the disinfection process used by the Omaha Metropolitan Utilities District and Lincoln Water System.

Ec98-787 Glossary Of Ecosystem Terms, Thomas G. Franti, R. Herpel, G.R. Lingle

University of Nebraska-Lincoln Extension: Historical Materials

This extension circular contains ecosystem definitions from abiotic to wildlife refuge.

Ec96-779 Lagoons For Management Of Livestock Manure, Gerald R. Bodman

University of Nebraska-Lincoln Extension: Historical Materials

A lagoon is a specifically designed manure storage facility. A properly designed lagoon also functions as a treatment system. Manure in any storage facility undergoes some biological decomposition. However, any decomposition of organic matter which occurs in a conventional storage is coincidental and not part of the design procedure or considerations.

The proper design of a lagoon gives special consideration to biological decomposition of organic matter. In fact, the design is intended to promote or enhance the breakdown of organic matter.

This publication discusses the types of lagoons. It covers the design, construction, and guidelines of maintaining a lagoon.

Ec96-143 Pesticide Runoff And Water Quality In Nebraska, Steven Comfort, Thomas G. Franti, S.K. Smith

University of Nebraska-Lincoln Extension: Historical Materials

Nebraska's natural resources provide its residents with an abundance of wildlife, recreation, and agricultural opportunities. Some of the state's most important resources are its lakes, rivers and streams. These surface waters provide year-round habitat for aquatic and terrestrial wildlife, rest stops for migratory birds, and countless hours of enjoyment for outdoor enthusiasts. In addition, surface waters provide a source of drinking water for many Nebraska residents, and are vital for some farming and industrial operations. To better understand how surface waters become contaminated from pesticide runoff, the various factors and processes influencing runoff must be understood. With this understanding, pesticide …

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 …

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.

Ec95-743 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.

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.

Ec95-741 Pollution Prevention: A Tool Kit For Drycleaners, 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.

Ec95-745 Managing Livestock Odors: Principles, Assessment And Planning, Richard K. Koelsch

University of Nebraska-Lincoln Extension: Historical Materials

Odors associated with livestock manure represent a growing challenge for livestock producers. Livestock production trends such as more animals per farm and expanded reliance upon manure storage have added to the odor muisance. Implementing other environmentally friendly practices such as manure nutrient management and maintenance of surface crop residues for soil conservation also have resulted in additional odor challenges.

Odors originating from livestock wastes are a common source of irritation between producers and neighbors. Confrontations may lead to more stringent local zoning regulations, greater scrutiny of other farm environmental issues, and litigation.

This publication summarizes the underlying causes of livestock …

Ec91-735 The Impact Of Nitrogen And Irrigation Management And Vadose Zone Conditions On Ground Water Contamination By Nitrate-Nitrogen, K.D. Frank, Darrell Watts, Andrew Christiansen, Edwin Penas

University of Nebraska-Lincoln Extension: Historical Materials

The single largest contaminant found in ground water samples taken throughout Nebraska is nitrate-nitrogen (nitrate-N). Much of it reaches the ground water as a "non-point source" contaminant leached out of the crop root zone.

Nitrate-N is essential to corn production. However, when leached from the crop root zone it can become a major source of ground water contamination. There are serious contamination problems in shallow aquifers beneath several river valleys in Nebraska. Increasing nitrate-N concentrations are beginning to appear in deeper aquifer.

G89-932 Minimum Center Pivot Design Capacities In Nebraska, William L. Kranz, Derrel L. Martin, Greg Lackas

University of Nebraska-Lincoln Extension: Historical Materials

Factors to consider in choosing an appropriate center pivot design are covered here. Irrigators investing in a center pivot irrigation system need to consider this important question: How much supplemental water is required by the crop? Irrigation system capacity needed to meet crop requirements is defined in units of gallons per minute (GPM) or gallons per minute per acre (GPM/AC). If the system capacity is too low, crop stress occurs during some portion of the growing season. If the capacity is too high, surface runoff may result, or capital investment for the pumping plant and center pivot may be greater …

G88-888 Flow Control Devices For Center Pivot Irrigation Systems, William L. Kranz

University of Nebraska-Lincoln Extension: Historical Materials

Several factors contribute to the need for sprinkler flow rate regulators. This NebGuide discusses them.

Many center pivot irrigation systems operate on undulating terrain. Systems operated on undulating terrain experience large pressure differences in the pivot pipeline. Since water distributed by each sprinkler is determined by the pressure in the pipeline, water applied by these systems can be non-uniform.

Pressure regulating devices that equalize the flow of water from individual sprinklers have become more common since uniform water application may save water and increase overall crop production. When installing a sprinkler package on a new system or replacing sprinklers on …

G85-753 Irrigation Scheduling Using Crop Water Use Data, C. Dean Yonts, Norman L. Klocke

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide describes using the "checkbook" method to schedule irrigations based on crop water use data.

Irrigation scheduling determines when and how much water to apply to meet crop demand. Soil water status and current crop water use are key factors for scheduling irrigations. Field observations and crop growth stage are important, but scheduled irrigations result in better rainfall use while avoiding crop water stress or excessive irrigation.

G83-684 Row Crop Planters: Equipment Adjustments And Performance In Conservation Tillage, Elbert C. Dickey, Paul J. Jasa

University of Nebraska-Lincoln Extension: Historical Materials

This NebGuide discusses planters used in conservation tillage systems and gives recommendations for improving planter performance.

The planter's primary job is to place seed where it will germinate and grow. Proper seed spacing minimizes competition for the light, nutrients and soil moisture essential for crop growth.

Several factors influence planter performance, including adjustments and correct operation. Field conditions also are important.

Traditionally, producers used tillage equipment that created a well-tilled, residue-free seedbed for planting. Many producers now are adopting conservation tillage methods that have fewer tillage operations and leave a protective residue cover on the soil surface.