high molecular weight medium anionic polyacrylamide road
high molecular weight medium anionic polyacrylamide road
high molecular weight medium anionic polyacrylamide road
high molecular weight medium anionic polyacrylamide road
high molecular weight medium anionic polyacrylamide road
polyacrylamide degradation and its implications in environmental systems | npj clean water - nature

Polyacrylamide degradation and its implications in environmental systems | npj Clean Water - Nature

High molecular weight (10 6 ¨C3 ¡Á 10 7 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and...

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anionic polyacrylamide - santos

ANIONIC POLYACRYLAMIDE - Santos

No studies on the environmental fate of anionic polyacrylamide are available. As a high-molecular-weight, water-soluble polymer, it is not expected to biodegrade or bioaccumulate (Lyons and Vasconcellos, 1997). The environmental fate of anionic polyacrylamide

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polyacrylamide degradation and its implications in environmental systems - nature

Polyacrylamide degradation and its implications in environmental systems - Nature

The molecular weight (MW) of commercial PAM ranges from 105 to >107Da. High MW PAM (>106Da) has a wider range of applicationsduetoitshighviscosity,dragreductioncapabilities, and water...

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biodegradation of anionic polyacrylamide by manganese peroxidase: docking, virtual mutation based on affinity, qm/mm calculation and molecular

Biodegradation of anionic polyacrylamide by manganese peroxidase: docking, virtual mutation based on affinity, QM/MM calculation and molecular

Abstract Manganese peroxidase (Mn P) is capable of effectively degrading anionic polyacrylamide (HPAM). However, the interaction of Mn P with HPAM at molecular level is lacking until now. Here, the HPAM model compounds, HPAM-2, HPAM-3, HPAM-4, and HPAM-5, were selected to reveal their binding mechanisms with Mn P.

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polyacrylamide in agriculture and environmental land management

Polyacrylamide in Agriculture and Environmental Land Management

Anionic polyacrylamide (PAM) has been sold since 1995 to reduce irrigation©induced erosion and enhance infiltration. Its soil stabilizing and flocculating properties improve runoff water quality by reducing sediments, N, dissolved reactive phosphorus (DRP) and total P, chemical oxygen demand (COD), pesticides, weed seeds, and microorganisms

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in-situ rheology and mechanical degradation of eor polyacrylamide solutions under moderate shear rates

In-situ rheology and mechanical degradation of EOR polyacrylamide solutions under moderate shear rates

Section snippets Polymers The sample is a high-molecular-weight (18 million Dalton), linear, anionic polyacrylamides containing 72.2 mol% of acrylamide and 27.8 mol% of acrylate. Brine A solution of potassium chloride (KCl) and 400 ppm sodium azide (NaN 3) in tap water was used as make-up brine.

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polyacrylamide and chitosan biopolymer for flocculation and turbidity reduction in soil suspensions | journal of polymers and the

Polyacrylamide and Chitosan Biopolymer for Flocculation and Turbidity Reduction in Soil Suspensions | Journal of Polymers and the

High molecular weight, anionic PAMs have been found to be effective for erosion and sediment control in irrigated agriculture and construction sites [3, 9]. Previous studies tested PAM applications for turbidity control in various construction site settings such as check dams [ 2 , 10 , 11 ], settling basins [ 12 , 13 , 14 ], erosion control blankets as ditch liners [ 9 , 11 ], and dewatering

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anionic polyacrylamide water-in-water emulsion prepared by dispersion polymerization in mixed salt aqueous media - de gruyter

Anionic polyacrylamide water-in-water emulsion prepared by dispersion polymerization in mixed salt aqueous media - De Gruyter

High molecular weight anionic copolymers of acrylamide (AM) and sodium salt of acrylic acid (NaAA), poly(AM-co-NaAA), have been utilized in various industrial applications ranging from paper-making [1], water purification [2], sludge dewatering [3], mineral processing [4] to tertiary oil recovery [5].

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studies on flocculation characteristics of chromite¡¯s ore process tailing: effect of flocculants ionicity and molecular mass

Studies on flocculation characteristics of chromite¡¯s ore process tailing: Effect of flocculants ionicity and molecular mass

Anionic flocculants with low ionic strength and molecular weight show higher settling efficiency, whereas, cationic flocculants bearing high ionic strength and molecular weight also display the similar settling behaviour. The opaqueness of consolidated solids is greater with cationic than the anionic polyacrylamide.

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biodegradation of anionic polyacrylamide by manganese peroxidase: docking, virtual mutation based on affinity, qm/mm calculation and molecular

Biodegradation of anionic polyacrylamide by manganese peroxidase: docking, virtual mutation based on affinity, QM/MM calculation and molecular

The results showed that the most suitable substrate for Mn P was HPAM-5, and the main reason for MnP-HPAM- 5 with maximal affinity was strong hydrogen bond, and these results were helpful in designing highly efficient Mn P against HPAM to protect the ecological environment. Manganese peroxidase (Mn P) is capable of effectively degrading anionic polyacrylamide (HPAM). However, the interaction

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