feed lot run off!!! unl environmental engineering lesson july 2007 marie nielsen
TRANSCRIPT
Feed LotFeed Lot Run Off!!! Run Off!!!UNL Environmental Engineering
Lesson July 2007
Marie Nielsen
College of Engineering
Architectural Engineering Biological Systems Engineering
Chemical and Biomolecular
Engineering Civil Engineering Computer Science & Engineerin
g Computer & Electronics Engine
ering Construction Management Construction Systems Electrical Engineering Engineering Mechanics Industrial & Management Syste
ms Engineering Mechanical Engineering
Special Programs & Units Faculty Directory:
Environmental Engineering**
Mid-America Transportation Center**
Midwest Roadside Safety Facility
Six Sigma Study Abroad**
* = Omaha Campus ** = Omaha & Lincoln
Campuses
Environmental Engineering Slide Show
http://www.sos.state.ne.us/business/regsearch/Rules/Environmental_Quality_Dept_of/Title-198/Appendix-A.pdf
Runoff settling basin and holding pond
Manure is scraped periodically from feedlots and spread on croplands
Good management practices decrease risk of contaminating water supplies
http://www.ces.purdue.edu/extmedia/WQ/WQ-7.html
Proper Storage of Liquid waste
Can be used as a viable fertilizer
Reduces chance of surface and ground water contamination
Meets regulations
http://www.state.sd.us/denr/DES/Ground/AWMS/AWMS.htm
Pen USDA Research Project
Effects of Pond Ash as a Feedlot Pen Surface and Animal Stress-Level on the Prevalence, Levels, and …
Project Number: 5438-32000-026-03 Project Type: Trust Start Date: May 01, 2006 End Date: Apr 30, 2008 http://www.ars.usda.gov/research/projects/projects.htm
?ACCN_NO=410515
Calculating Rainwater peak Runoff
Rational Method The formula is: Q=CiA
Q = peak runoff rate (cfs) I = is rainfall intensity
(in/hr) A = drainage area (acres) C is runoff coefficient
(Activity 4.5.3A)
http://webmail.nicolet.k12.wi.us/~Jason_Huber/FOV2-00014049/FOV2-00019020/FOV2-0001903C/Rainwater%20Runoff.pdf?FCItemID=S008265FE
Water run off in the community http://edweb.sdsu.edu/
sciencetg/elementary/pond/pond4.html
(Area of Pavement & Buildings) ____________________________ X 100% = % of rain lost to run off (Area of entire playground)
Heavy Rains Drench G.I. Heavy rains drench
G.I. Rainfall early Sunday
brought 5.07 inches of water
Grand Island had flooded: parking lots streets low-lying areas
Maxed out G.I. rain detention cell
Foreground is Lawrence Lane
Behind is maxed out rain detention cell
Far back is spillage on to State Street in front of McDonalds occurred
http://www.flickr.com/photos/candleshoe/941130784/
Nebraska Weather and Climate Page
http://www.hprcc.unl.edu/nebraska/
Image © Mike Hollingshead. Saturday evening, September 16, 2006. Lightning over Omaha.
Calculating Storm Water Run-on @ Construction Sites
Run-on water that comes
from off-site locations
drains onto construction site
Q - run-on flow (m3 /sec)
C - run-off coefficient for drainage area (%)
i - rainfall intensity (mm/hour)
A - area draining onto the site (km2 )
http://www.dot.ca.gov/hq/env/stormwater/publicat/const/Dec_2000.pdf
Teach engineering
http://www.teachengineering.org/view_activity.php?url=http://www.teachengineering.com/collection/cub_/activities/cub_air/cub_air_lesson03_activity2.xml
Resources for K-12 Students
http://www.engineeringpathway.com/ep/
http://www.free.ed.gov/resource.cfm?resource_id=1629&subject_id=43