polyacrylamide adsorption and aggregate stability in monaco

polyacrylamide adsorption and aggregate stability - sciencedirect

Polyacrylamide adsorption and aggregate stability - ScienceDirect

Adsorption of an anionic polyacrylamide (PAM) on aggregates of different sizes from a Worsham (Typic Ochraquults), and a Cecil (Typic Hapludults), Georgia, USA, and the resultant stability of the PAM-treated aggregates to wet sieving, were studied. Aggregates were packed in a small chamber, saturated with a polymer solution, and after 24 h

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polyacrylamide (pam) and soils

Polyacrylamide (PAM) and Soils

amount of adsorption and aggregate stability was found. The general effectiveness of the polyanions for improving aggregate stability of the natural soil was in the order 2J > 21J > 4246. The reverse trend was observed for the Na soil. NAL Call No.: 56.9-SO3 ***** 3. Adsorption of polyacrylamide and polysaccharide polymers on soil materials.

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polyacrylamide and biopolymer effects on flocculation

Polyacrylamide and biopolymer effects on flocculation

complete adsorption to the soil). Solutions were applied slowly at the outset, to prevent aggregate breakdown. A few drops of solution were Table 1 Characteristics of anionic biopolymer and polyacrylamide copolymer (PAM) treatment solutions used in flocculation, aggregate stability and effective hydraulic conductivity experiments. ID Polymer type

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soil & water management & conservation polyacrylamide effects

Soil & Water Management & Conservation Polyacrylamide Effects

aggregate slaking and erosion in an unstable smectitic silt loam soil than in a clay soil (Green et al., 2004). Soil aggregate forming, macro- and micro aggregate stability, aggregate breakdown mechanism and chemical dispersion, depend not only on clay content, organic matter and/or sesquioxides, but also on clay mineralogy (Amezketa, 1999).

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improving aggregate stability and hydraulic properties of

Improving aggregate stability and hydraulic properties of

Improving soil properties, especially in arid and semiarid regions, is an urgent need for sustainable food production. This study aims to evaluate the effect of applying two types of anionic polyacrylamide polymers (PAMs) with different molecular weights on: (1) soil aggregate stability, (2) infiltration rate and (3) saturated hydraulic conductivity of sandy loam soil and introduce a novel

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10.1016/s0167-1987(99)00048-3 | deepdyve

10.1016/S0167-1987(99)00048-3 | DeepDyve

However, the MWD data of the entire sample ( Fig. 3 ) do not allow to distinguish between the contribution to aggregate stability of PAM adsorption on inner aggregate surfaces and its adsorption on outer aggregate surfaces.

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aggregation and thermal properties of nanostructured

Aggregation and thermal properties of nanostructured

The aim of the study was to investigate the influence of nanostructured montmorillonite surface modification by the cationic polyacrylamide and the lead(II) ions on the thermal and aggregation properties of solid particles covered with mixed adsorption layers. The effects of cationic groups content in the polymeric macromolecules, the order of individual adsorbates addition, and lead(II) ions

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literature on polyacrylamide gels | linda chalker-scott

Literature on Polyacrylamide Gels | Linda Chalker-Scott

Stability analysis of soil aggregates treated with anionic polyacrylamides of different molecular formulations. Soil Science 169(8): 573-581. Hayes, S.A., R.A. McLaughlin and D.L. Osmond. 2005. Polyacrylamide use for erosion and turbidity control on construction sites. Journal of Soil and Water Conservation Ankeny 60(4): 193-199.

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10.1016/s0167-1987(99)00048-3 | deepdyve

10.1016/S0167-1987(99)00048-3 | DeepDyve

However, the MWD data of the entire sample ( Fig. 3 ) do not allow to distinguish between the contribution to aggregate stability of PAM adsorption on inner aggregate surfaces and its adsorption on outer aggregate surfaces.

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polyacrylamide effects on aggregate and structure stability

Polyacrylamide Effects on Aggregate and Structure Stability

Adding anionic polyacrylamide (PAM) to soils stabilizes existing aggregates and improves bonding between and aggregation of soil particles. However, the dependence of PAM efficacy as an aggregate s

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polyacrylamide: a review of the use, effectiveness, and cost

Polyacrylamide: A Review of the Use, Effectiveness, and Cost

polyacrylamide (PAM), is one of many options for protecting soil resources. Polyacrylamide has been the focus of a substantial amount of research in the 1990s. Our objective is to present a review of the recent findings and advancements in PAM work. As a soil conditioner PAM can be used to stabilize soil aggregates as well as

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publication : usda ars

Publication : USDA ARS

Polyacrylamide effects on aggregate and structure stability of soils with different clay mineralogy. Soil Science Society of America Journal. 74 (5):1720-1732. Interpretive Summary: Environmentally friendly anionic polyacrylamide (PAM) is used to prevent runoff and erosion to help sustain soil quality and prevent surface water pollution.

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sprinkler irrigation runoff and erosion control with

Sprinkler Irrigation Runoff and Erosion Control with

infiltration following the third irrigation. Wet aggregate stability fol-lowing the first irrigation was greater in all PAM treatments than on the check. With 2 kg ha" PAM in the 20-mm irrigation, it was 55%; in 8 mm, 77%. Polyacrylamide applied in the first irrigation at low rates effectively reduced runoff and erosion. Erosion was more

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aggregate stabilization in kaolinitic soils by low rates of

Aggregate stabilization in kaolinitic soils by low rates of

The stability of aggregates can be improved by amending the soil with charged synthetic polymers. We have evaluated the effects of addition of low rates of anionic polyacrylamide (PAM) on the stability of aggregates from three predominately kaolinitic soils, and investigated whether the applied PAM penetrated into the aggregates or was adsorbed onto exterior surfaces only.

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aggregation and thermal properties of nanostructured

Aggregation and thermal properties of nanostructured

The aim of the study was to investigate the influence of nanostructured montmorillonite surface modification by the cationic polyacrylamide and the lead(II) ions on the thermal and aggregation properties of solid particles covered with mixed adsorption layers. The effects of cationic groups content in the polymeric macromolecules, the order of individual adsorbates addition, and lead(II) ions

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hydrolysis of cationic polyacrylamide and its effect on

Hydrolysis of cationic polyacrylamide and its effect on

Hydrolysis of Cationic Polyacrylamide and its Effect on Flocculation of Ground Calcium Carbonate. Dongil Seo, Kyudeok Oh, Wanhee Im, and Hak Lae Lee * Cationic polyacrylamides (C-PAMs) have been widely used as flocculating agents to aggregate particles carrying negatively charged surfaces.

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aggregate stability and water retention near saturation

AGGREGATE STABILITY AND WATER RETENTION NEAR SATURATION

AGGREGATE STABILITY AND WATER RETENTION NEAR SATURATION CHARACTERISTICS AS AFFECTED BY SOIL TEXTURE, AGGREGATE SIZE AND POLYACRYLAMIDE APPLICATION Amrakh I. Mamedov1*, Chi-hua Huang2, Fazil A. Aliev3,4, Guy J. Levy5 1Institute of Soil Science and Agrochemistry, Institute of Botany, ANAS, Baku Azerbaijan, and Selcuk University, Konya, Turkey

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adsorption of polyacrylamide on oxide minerals | langmuir

Adsorption of polyacrylamide on oxide minerals | Langmuir

Response surface methodology approach for the optimisation of adsorption of hydrolysed polyacrylamide from polymer-flooding wastewater onto steel slag: a good option of waste mitigation. Water Science and Technology 2017 , 76 (4) , 776-784.

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water and erosion management with multiple applications of

Water and Erosion Management with Multiple Applications of

PAM may also slightly affect seal conductivity. Polyacrylamide raised aggregate stability from 54 to 80% in 1993 and from 63 to 84% in 1994. In 1994, PAM reduced sod strength in furrows from 1.7 to 1.1 Mpa. W ATER SOLUBLE POLYACRYLAMMES are potent tools for fighting furrow irrigation-induced erosion (Lentz et al., 1992; Lentz and Sojka, 1994

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aging and loss of flocculation activity of aqueous

Aging and loss of flocculation activity of aqueous

Agnes F. Hollander, P. Somasundaran and Carl C. Gryte, Adsorption characteristics of polyacrylamide and sulfonate‐containing polyacrylamide copolymers on sodium kaolinite, Journal of Applied Polymer Science, 26, 7, (2123-2138), (2003).

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improving aggregate stability and hydraulic properties of

Improving aggregate stability and hydraulic properties of

Improving soil properties, especially in arid and semiarid regions, is an urgent need for sustainable food production. This study aims to evaluate the effect of applying two types of anionic polyacrylamide polymers (PAMs) with different molecular weights on: (1) soil aggregate stability, (2) infiltration rate and (3) saturated hydraulic conductivity of sandy loam soil and introduce a novel

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influence of asphaltene aggregation and pressure on crude oil

Influence of asphaltene aggregation and pressure on crude oil

@misc{etde_20501082, title = {Influence of asphaltene aggregation and pressure on crude oil emulsion stability} author = {Auflem, Inge Harald} abstractNote = {Water-in-crude oil emulsions stabilised by various surface-active components are one of the major problems in relation to petroleum production.

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what is the main applications of anionic polyacrylamide in

what is the main applications of anionic polyacrylamide in

Dispersant In the drilling mud treatment, this anionic polyacrylamide can improve the lubricity and stability of the mud to reduce the water loss, prevent sticking effectively, increase drilling

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hydrolysis of cationic polyacrylamide and its effect on

Hydrolysis of cationic polyacrylamide and its effect on

Hydrolysis of Cationic Polyacrylamide and its Effect on Flocculation of Ground Calcium Carbonate. Dongil Seo, Kyudeok Oh, Wanhee Im, and Hak Lae Lee * Cationic polyacrylamides (C-PAMs) have been widely used as flocculating agents to aggregate particles carrying negatively charged surfaces.

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