Reducing furrow irrigation erosion with polyacrylamide (PAM)
Irrigation > Furrow irrigation > Erosion > Polyacrylamide Polyacrylamide (PAM) > Water-soluble PAM (WSPAM) > Erosion control Soil > Erosion Mass Import - autoclassified (may be erroneous) Depositing User: Michelle Wayment: Date Deposited: 20 Nov 2010 21:54: Last Modified: 22 Nov 2016 17:53: Item ID: 678: URI: https://eprints.nwisrl.ars.usda.gov
If inexpensive, effective, easy erosion control were available, many furrow irrigation farmers could improve resource conservation and water management. Small amounts of a specific class of polyacrylamide (PAM) copolymer can vir-tually halt furrow irrigation-induced erosion.
Reducing Furrow Irrigation Erosion with Polyacrylamide (PAM)
Reducing Furrow Irrigation Erosion with Polyacrylamide (PAM) R. E. Sojka* and R. D. Lentz Irrigated cropping is a critical component of global agricul-tural production. Surface irrigation—most of it furrow irriga-tion—accounts for >60% of Earth's 600 million irrigated acres. Erosion threatens irrigation's ability to maintain its 2X
Reducing Furrow Irrigation Erosion with Polyacrylamide (PAM) Article (PDF Available) in Journal of Production Agriculture 10(1) · January 1997 with 164 Reads How we measure 'reads'
G1866 Using Polyacrylamide to Reduce Soil Erosion
1990s as a method to reduce erosion in furrow irrigation. Their tests indicated PAM applied in the irrigation water reduced soil erosion in furrows by over 95 percent, when compared to irrigation without the polymer. What are the Benefits of PAM? Polyacrylamide benefits may go beyond erosion control.
Polyacrylamide (PAM) has been an effective, economical erosion preventative under a variety of field conditions (Fig. 1) when dissolved at 10 g/m 3 in the advance phase (only) of furrow irrigation inflow streams (Lentz et al., 1992; Lentz and Sojka, 1994b; Lentz, 1996). Polyacrylamide copolymers having molecular weights of 12-15 Mg/mol and
Using Polyacrylamide (PAM) to Reduce Erosion
The chemical polyacrylamide (PAM) is well suited for erosion control enhancement, and its use is described below. are much less toxic to aquatic organisms and are widely used in furrow irrigation agriculture. This type of PAM is the focus of this discussion, and all references to “PAM” are to the anionic forms. Published research
Erosion Control in Furrow Irrigation Using Polyacrylamide 281 of the double layer, the range of the repulsiv e forces is greatly reduced (Van Olphen, 1977), thereby promoting flocculation. Fig. 1. Molecular structure of anionic polyacrylamide Several studies have shown that PAM dissolved in irrigation water at a rate of 10 kg ha-1
Reducing furrow irrigation erosion with polyacrylamide (1997)
If inexpensive, effective, easy erosion control were available, many furrow irrigation farmers could improve resource conservation and water management. Small amounts of a specific class of polyacrylamide (PAM) copolymer can vir-tually halt furrow irrigation-induced erosion.
Furrow irrigation can be a major contributor to soil loss. Reducing soil erosion on vulnerable acres can help maintain topsoil for future generations. Furrow irrigation results in greater loss because, unlike a center pivot system, furrow irrigation uses soil as the transmission line, distributing water along the irrigation furrow.
Evaluation of using polyacrylamide (PAM) for reducing
furrow systems, demonstrated significant reductions in sediment and nutrient concentration in irrigation run-off. A brief primer on PAM Polyacrylamide (PAM) is a polymer used to stabilize soil and prevent erosion. Various forms of PAM exist, but the type used for erosion control is a large, negatively charged
Polyacrylamide (PAM) in furrow irrigation water eliminates 94% of runoff sediment. Higher infiltration (15-50%) can result in upper-field overirrigation.
- What is nonionic polyacrylamide?
- Nonionic polyacrylamides Nonionic polyacrylamides represent the smallest group of acrylamide-based polymers, representing about 25% of the total polyacrylamide market. Nonionic polyacrylamide is somewhat misleading since in the manufacture of acrylamide, regardless of the route, some degree of hydrolysis of acrylamide occurs.
- What is a high molecular weight nonionic polyacrylamide?
- High-molecular-weight nonionic polyacrylamides are routinely used in the mineral processing industries as thickeners and flocculants , , . 34.2.5. Polyacrylamide product forms The product types for polyacrylamides are solutions, liquids (emulsion or dispersion), and dry powders.
- What are the product types for polyacrylamides?
- The product types for polyacrylamides are solutions, liquids (emulsion or dispersion), and dry powders. The forms each have their own set of advantages and disadvantages as will be discussed in the following. 34.2.5.1. Aqueous solution polyacrylamides
- What is an anionic polyacrylamide?
- Anionic polyacrylamides make up the largest portion of the polyacrylamide market. The polymers can be prepared over a wide range of anionic charges and molecular weights (1000 to > 20,000,000 molecular weight). The workhorse comonomer for the production of anionic polyacrylamides is acrylate salts of acrylic acid.
