Polyacrylamide efficacy for reducing soil erosion
A higher rate of PAM (40P) had less SL than a lower rate of PAM (20P) at slopes of 20% and 40%. With 40P, the reduction in SL was 72% greater than 0P at 40% slope. Therefore, slope is a critical factor in determining a PAM rate for reducing soil erosion and should be considered for proper application.
Get Price
Polyacrylamide efficacy for reducing soil erosion
Polyacrylamide reduced SL for all slopes. A higher rate of PAM (40P) had less SL than a lower rate of PAM (20P) at slopes of 20% and 40%. With 40P, the reduction in SL was 72% greater than 0P at 40% slope. Therefore, slope is a critical factor in determining a PAM rate for reducing soil erosion and should be considered for proper application.
Get Price
Effectiveness of Polyacrylamide in Reducing Runoff
Effectiveness of Polyacrylamide in Reducing Runoff and Soil Loss under Consecutive Rainfall Storms Article (PDF Available) in Sustainability · February 2020 with 196 Reads How we measure 'reads'
Get Price
Effectiveness of Polyacrylamide in Reducing Runoff
Effectiveness of Polyacrylamide in Reducing Runoff and Soil Loss under Consecutive Rainfall Storms Birhanu Kebede 1,2, *, Atsushi Tsunekawa 3 , Nigussie Haregeweyn 4 , Amrakh.
Get Price
Effectiveness of Polyacrylamide in Reducing Runoff
The use of anionic polyacrylamide (PAM) as a soil conditioner could help prevent soil loss by water. In this study, we determined the effective granular PAM rate that best reduces runoff and soil loss from Oxisols. Furthermore, the effectiveness of the selected PAM rate was tested by applying it in a mixture with gypsum (G) or lime (L). The study was conducted in two phases: (i) Dry PAM rates
Get Price
Effectiveness of Polyacrylamide in Reducing Runoff
The use of anionic polyacrylamide (PAM) as a soil conditioner could help prevent soil loss by water. In this study, we determined the effective granular PAM rate that best reduces runoff and soil loss from Oxisols. Furthermore, the effectiveness of the selected PAM rate was tested by applying it in a mixture with gypsum (G) or lime (L). The study was conducted in two phases: (i) Dry PAM rates
Get Price
Effect of Polyacrylamide Application on Runoff, Erosion
Soil erosion affects soil productivity and environmental quality. A laboratory research experiment under simulated heavy rainfall with tap water was conducted to investigate the effects of anionic polyacrylamide (PAM) application rates (0, 0.5, 1.0, and 2.0 g m −2) and molecular weights (12 and 18 Mg mol −1) on runoff, soil erosion, and soil nutrient loss at a slope of 5°.
Get Price
Efficacy of granular polyacrylamide on runoff, erosion
Dou C, Li F, Wu LS (2012) Soil erosion as affected by polyacrylamide application under simulated furrow irrigation with saline water. Pedosphere 22(5):681–688 CrossRef Google Scholar Elrashidi MA, Seybold CA, Delgado J (2013) Annual precipitation and effects of runoff nutrient from agricultural watersheds on water quality.
Get Price
POLYACRYLAMIDE EFFECT ON SEDIMENT YIELD, RUNOFF, AND
Polyacrylamide effect on sediment yield, runoff, and seedling emergence on a steep slope K. Chaudhari and D.C. Flanagan Introduction Recent estimates indicate that 600 000 ha of land surface is critically disturbed annually in the United States by construction of new urban areas, roads, and highways (Troeh et al., 1991).
Get Price
polyacrylamide soil amendment effects on runoff at suisse
Polyacrylamide efficacy for reducing soil erosion and. Polyacrylamide soil amendment effects on runoff and sediment yield on steep slopes: Part I. Simulated rainfall conditions. Transactions of the American Society of Agricultural Engineers 45 (5): 1327-1337. Get Price
Get PriceEffects of Polyacrylamide and Gypsum on Soil Erosion
This study evaluates the effectiveness of two popular soil amendments of gypsum and polyacrylamide (PAM) in minimizing soil erosion from one soil and one overburden (spoil) material of a mine rehabilitation site in Central Queensland. The treatments included an untreated soil (control), a gypsum application rate of 10 t/ha,
Get Price
Polyacrylamide For Turbidity Control in Runoff: Effects
However, APS 705 alone was more effective at reducing turbidity than other PAMs combined with gypsum. PAM effectively decreased turbidity of most soil suspensions and could be very useful in reducing construction site runoff turbidity to meet water quality standards.
Get PriceApplicability of PAM(Polyacrylamide) in Soil Erosion
Abstract. Surface runoff and erosion are responsible for extensive losses of top soil and agricultural productivity. In this study, a laboratory experiment was conducted to investigate the effects of different polyacrylamides (PAM) on the protection of soil from erosion and turbidity in loamy sand soil.
Get PriceSoil & Water Management & Conservation Polyacrylamide
soil surface against shear-inducing detachment (Lentz and Sojka, 1994), decreasing soil susceptibility to seal formation (Levy et al., 1992; Shainberg et al., 1990, 1992), runoff generation and soil erosion (Smith et al., 1990; Bjorneberg and Aase, 2000); (iii) increasing the size and thus decreasing settling time of particles suspended in
Get PriceSoil Infiltration and Erosion Polyacrylamide Molecular Weight
rainstorms. Spreading dry PAM (both MWs) mixed with PG was effective in increasing soil IR (3 to 5 times) and reducing erosion (2 to 4 times) relative to the control. The impact of polymer MW on IR and runoff was small, inconsistent and soil type dependent. Conversely, PAM with moderate MW was more effective in reducing soil loss
Get Price
Soil Infiltration and Erosion Polyacrylamide Molecular
Spreading dry PAM (both MWs) mixed with PG was effective in increasing soil IR runoff and erosion from a wide range of soils (e.g., Levy and Sumner, 1998; Polyacrylamide Molecular Weight and Phosphogypsum Effects on Infiltration and Erosion in Semi-Arid Soils 1
Get PriceSoil & Water Management & Conservation Polyacrylamide
soil surface against shear-inducing detachment (Lentz and Sojka, 1994), decreasing soil susceptibility to seal formation (Levy et al., 1992; Shainberg et al., 1990, 1992), runoff generation and soil erosion (Smith et al., 1990; Bjorneberg and Aase, 2000); (iii) increasing the size and thus decreasing settling time of particles suspended in
Get Price
Polyacrylamide For Turbidity Control in Runoff: Effects
However, APS 705 alone was more effective at reducing turbidity than other PAMs combined with gypsum. PAM effectively decreased turbidity of most soil suspensions and could be very useful in reducing construction site runoff turbidity to meet water quality standards.
Get Price
Erosion control practices integrated with polyacrylamide
The objective of this research was to assess soil conservation practices for improving water quality of return flows from rill irrigation in the Yakima River Basin, Washington, by combining patch application of polyacrylamide (PAM) with an additional erosion control practice. A 2-year field study was conducted that combined PAM with (1) check dams, (2) surge irrigation, (3) surface drains, and
Get Price
Application of polyacrylamide reducing nitrate-N
Application of polyacrylamide reducing nitrate-N and soluble P losses from a Lou soil in a soil column experiment: Yuan Xuefeng1,2,3, Jian Jinshi4, Wei Xindong1,3, and Ying Yue1: 1. School of Earth Science and Resources, Chang’an University, Xi’an 710054, China; 2.
Get Price[PDF] Combined effects of polyacrylamide and nanomagnetite
A simulation experiment was conducted to investigate the effects of polyacrylamide (PAM) application rates (0, 0.5, 1, 2 and 4 g/m2), rainfall intensities (30, 60 and 90 mm/h) and the applied positions (top, middle and bottom with application rate of 2 g/m2) on runoff, soil and total nitrogen (TN) losses at loess slope.
Get Price
Efficacy of Natural Polymer Derivatives on Soil Physical
thereby preventing crust formation, increasing infiltration and reducing surface runoff as well as soil erosion [5]. The application of various synthetic polymers and surfactants has been reported in the technical literatures. Botha et al. [6] investigated the influence of polymer PVA on the liquid–solid contact angles of a fine sandy soil.
Get Price
Erosion, Water Quality, and Water Management - UNIVERSITY
This method shows potential as a tool for irrigation scheduling in humid environments. Anionic Polyacrylamide (PAM) at application rates of 0, 20, and 40 kg/ha were evaluated on a silt loam soil for reducing time to runoff (ROt), cumulative runoff (ROc), and cumulative sediment loss (SLc) for bed slopes of 10%, 20%, and 40%.
Get PriceErosion & Sediment Control Technical Bulletin #2
Erosion & Sediment Control Technical Bulletin #2 APPLICATION OF ANIONIC POLYACRYLAMIDE FOR SOIL STABILIZATION AND STORMWATER MANAGEMENT Introduction Anionic polyacrylamide (Anionic PAM) is a non-toxic chemical material that is being marketed nationwide for controlling soil erosion and sedimentation on construction sites.
Get Price
Effect of Polyacrylamide Application on Water and Nutrient
Polyacrylamide (PAM) is known as one of soil conditioner that functions to stabilize soil structure, increase infiltration, and reduce surface runoff. This study assesses the effects of PAM on the vertical movement of soil-water and major/minor nutrients (NO3-N, NH3-N, T-N, PO4-P, T-P, K, Ca, Mg, and Fe) in soils.
Get Price
Polyacrylamide molecular formulation effects on erosion
Yang, L.-x., Li, S.-c., Sun, H.-l., Ye, F.-f., Liu, W. and Luo, S. 2011. Polyacrylamide molecular formulation effects on erosion control of disturbed soil on steep rocky slopes. Can. J. Soil Sci. 91: 917-924. Soil erosion caused by increasing runoff and soil disturbances is a severe problem on steep rocky slopes. One possible soil erosion control measure is the application of polyacrylamide
Get PriceApplication of polyacrylamide reducing nitrate-N
Application of polyacrylamide reducing nitrate-N and soluble P losses from a Lou soil in a soil column experiment: Yuan Xuefeng1,2,3, Jian Jinshi4, Wei Xindong1,3, and Ying Yue1: 1. School of Earth Science and Resources, Chang’an University, Xi’an 710054, China; 2.
Get Price![[pdf] combined effects of polyacrylamide and nanomagnetite](/image/DSC_0087.JPG)
[PDF] Combined effects of polyacrylamide and nanomagnetite
A simulation experiment was conducted to investigate the effects of polyacrylamide (PAM) application rates (0, 0.5, 1, 2 and 4 g/m2), rainfall intensities (30, 60 and 90 mm/h) and the applied positions (top, middle and bottom with application rate of 2 g/m2) on runoff, soil and total nitrogen (TN) losses at loess slope.
Get PriceEfficacy of Natural Polymer Derivatives on Soil Physical
thereby preventing crust formation, increasing infiltration and reducing surface runoff as well as soil erosion [5]. The application of various synthetic polymers and surfactants has been reported in the technical literatures. Botha et al. [6] investigated the influence of polymer PVA on the liquid–solid contact angles of a fine sandy soil.
Get Price
Missouri Water Resources Research Center Annual Technical
Annual Progress Report - Missouri Water Resources Research Center Title: Developing Guidelines for Polyacrylamide Use for Erosion and Runoff Reduction. Name: C.J. Gantzer, and A.L. Thompson Nature, Scope and Objectives of Research: Work was to evaluate soil erodibility as influenced by Polyacrylamide (PAM) and Ca++ was done using a single drop splash device (Gantzer et al., 1985)).
Get Price
Effect of polyacrylamide additions on infiltration
Flanagan DC, Norton LD, Shainberg I (1997) Effect of water chemistry and soil amendments on a silt loam soil--Part 2: soil erosion. American Society, of Agricultural Engineers 40, 1555-1561. Fox D, Bryan RB (1992) Influence of a polyacrylamide soil conditioner on runoff generation and soil erosion: field tests in Baringo District, Kenya.
Get Price
Erosion & Sediment Control Technical Bulletin #2
Erosion & Sediment Control Technical Bulletin #2 APPLICATION OF ANIONIC POLYACRYLAMIDE FOR SOIL STABILIZATION AND STORMWATER MANAGEMENT Introduction Anionic polyacrylamide (Anionic PAM) is a non-toxic chemical material that is being marketed nationwide for controlling soil erosion and sedimentation on construction sites.
Get Price