Full TGIF Record # 249018
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Web URL(s):http://usgatero.msu.edu/v13/n5-1.pdf
    Last checked: 10/01/2014
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Publication Type:
i
Report
Author(s):Penn, Chad; Bell, Greg; Wang, Zan; McGrath, Josh; Wilson, Stuart; Bowen, James
Author Affiliation:Oklahoma State University
Title:Improving the ability of steel slag to filter phosphorus from runoff
Source:USGA Turfgrass and Environmental Research Online. Vol. 13, No. 5, September/October 2014, p. 1-5.
Publishing Information:Far Hills, New Jersey: United States Golf Association, Green Section
# of Pages:5
Keywords:TIC Keywords: Filters; Nutrient recovery; Phosphorus; Phosphate losses; Runoff control; Slags
Abstract/Contents:"A landscape filter that contained steel slag was examined for its ability to retain phosphorus (P) after being spent, meaning after it had been saturated with P during prior runoff events. In addition, the use of slag 'interception ditches' was investigated for viability in P removal. Testing indicated that a smaller size fraction of slag (>0.5 mm) was found to remove more P than larger sized slag (>6.35 mm) without severely compromising hydraulic conductivity. Previously spent slag from a P removal structure was mostly stable as evidenced by its ability to retain P when exposed to clean water. Runoff interception trenches filled with slag were able to effectively remove dissolved P in runoff without the need for construction of a more expensive structure. Slag sieved to >0.5 mm removed more P and had a longer lifetime than >6.35 mm slag without greater compromising hydraulic conductivity. The smaller slag size fraction removed 33% of cumulative P over 18 months compared to a larger slag size fraction that only removed 25% of cumulative P over 6 to 8 months. Dissolved P removed by sieved slag was impacted by structure retention time as the slag became more saturated with P. Retention time must be considered when constructing a P removal structure with sieved steel slag. Software for designing a P removal structure can be found at: Soil Chemistry - Design a Structure."
Language:English
References:6
Note:Summary appears as abstract
Pictures, color
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Penn, C., G. Bell, Z. Wang, J. McGrath, S. Wilson, and J. Bowen. 2014. Improving the ability of steel slag to filter phosphorus from runoff. USGA Turfgrass Environ. Res. Online. 13(5):p. 1-5.
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http://usgatero.msu.edu/v13/n5-1.pdf
    Last checked: 10/01/2014
    Requires: PDF Reader
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