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The settling tests of all grades of PAMs were carried out in 1 wt% kaolin suspension at neutral pH.
Preparation of Ultra-High-Molecular-Weight Polyacrylamide by Vertical Solution Polymerization Technique
Environmental toxicity is a concern when using PAMs to ameliorate soils and clarify surface water bodies.
Interactive effects of clay and polyacrylamide properties on flocculation of pure and subsoil clays
The molecular properties of PAM (molecular weight (MW) and molecular charge density) may interact in affecting the PAM's efficacy in flocculating soil clay, stabilising soil aggregates, diminishing seal formation, and resisting erosion (Green et al.
Infiltration and erosion in soils treated with dry PAM, of two molecular weights, and phosphogypsum
The dry granular PAM was dissolved in distilled water in the laboratory under constant stirring.
Polyacrylamide use for erosion and turbidity control on construction sites
The final test used PAM products because of its binding properties.
Tri-PAM application: desert dust-busting in helicopter operations
Pam Ayre, now 63, lived in Port Clarence with her family where mum Mary (nee Fishburn) ran the family business, Port Clarence's post office.
Harbouring thoughts of a new life?
Though this past summer was only the third during which Sojka's group has tested PAMs, word of the polymer's promise has gotten out.
Holding on to the Earth: off-the-shelf chemical halts erosion of irrigated fields
About 400 000 ha of agricultural land is treated each year with PAM in the USA (Sojka and Surapaneni 2000).
Effect of polyacrylamide additions on infiltration and erosion of disturbed lands
Methods for PAM quantification in soil waters should be unaffected by or should tolerate these possible interferences.
Polyacrylamide quantification methods in soil conservation studies
PAM is most commonly applied to irrigated furrows via two methods; either by dissolving PAM in irrigation water before it enters the furrow, or by placing a small patch of powder directly on the ground in the first 1 to 2 meters (3 to 6 feet) of the furrow before introducing the water.
Weed seed transport and weed establishment as affected by polyacrylamide in furrow-irrigated corn
The fundamental aspects and history of polyacrylamide (PAM) use in irrigation water have been covered in several publications (Wallace and Wallace 1986a and b; Lentz et al.
Polyacrylamide effects on infiltration in irrigated agriculture

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