anionic polyacrylamide viscosity concentration application
anionic polyacrylamide viscosity concentration application
anionic polyacrylamide viscosity concentration application
anionic polyacrylamide viscosity concentration application
anionic polyacrylamide viscosity concentration application
polyacrylamide degradation and its implications in environmental systems | npj clean water

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

High MW anionic PAM is also the most commonly applied polymer in enhanced oil recovery applications; the use of surfactant-polymer flooding can increase oil recovery by 5¨C30% 14 and in some...

Get Price
anionic polyacrylamide

ANIONIC POLYACRYLAMIDE

Anionic polyacrylamide is the copolymer of acrylamide and acrylic acid. No studies on the environmental fate of polyacrylamide are available. As a high-molecular weight, water-soluble polymer, it is not expected to biodegrade or bioaccumulate. Anionic polyacrylamide has a low acute toxicity concern to aquatic organisms.

Get Price
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

Get Price
investigation on viscosity behavior of anionic polyacrylamide copolymer in brine solutions for slickwater fluids applications at high salinity and

Investigation on Viscosity Behavior of Anionic Polyacrylamide Copolymer in Brine Solutions for Slickwater Fluids Applications at High Salinity and

Abstract. Slickwater fluids, used to undertake fracturing in low-permeability reservoirs, may be derived from produced water consisting of a range of dissolved salts. The fluids are pumped downhole at high flowrates, and hence friction reducers, e.g., anionic polyacrylamides (APAMs) are added, which also impart viscosity to the fluid resulting in better proppant transport. The present work

Get Price
fabricating an anionic polyacrylamide (apam) with an anionic block structure for high turbidity water separation and purification - rsc publishing

Fabricating an anionic polyacrylamide (APAM) with an anionic block structure for high turbidity water separation and purification - RSC Publishing

2.3. Characteristics of copolymers The intrinsic viscosities of polymers (¦Ç) used to assess the absorption and bridging ability was conducted on an Ubbelohde viscosity meter (Shanghai Shenyi Glass Instrumental Co. Ltd., China) in a 2 mol L ?1 aqueous NaCl solution at 30 C, 13 and the molecular weight of the polymer was calculated by huggins equation displayed in ESI Text S1.

Get Price
(pdf) polyacrylamide degradation and its implications in environmental systems

(PDF) Polyacrylamide degradation and its implications in environmental systems

Abstract High molecular weight (106¨C3 ¡Á 107 Da) polyacrylamide (PAM) is commonly used as a flocculant in water and wastewater treatment, as a soil conditioner, and as a viscosity modifier and...

Get Price
polyacrylamide degradation and its implications in environmental systems

Polyacrylamide degradation and its implications in environmental systems

multivalent cations.36 Adsorption is enhanced by ion-dipole interactions between the polymer C O groups and clay exchangeable cations and by hydrogen bonding interactions.21 Anionic PAM is most...

Get Price
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

Effect of chain-transfer agent concentration on intrinsic viscosity of poly(AM-co-NaAA) (total monomer concentration,18 wt%; total inorganic salt content, 27 wt%; stabilizer content, 4 wt% relative to monomers content; N 2 flow rate, 0.3 L min-1). As exhibited in

Get Price
synthesis and application of anionic polyacrylamide in water treatment | request pdf

Synthesis and Application of Anionic Polyacrylamide in Water Treatment | Request PDF

Coagulation experiments showed that the highest efficiency of the removal of Cd ions from water samples was achieved when the concentration of polyacrylamide¨Cglutathione was 84.48 mgL?1, the

Get Price
transient elongational viscosities of aqueous polyacrylamide solutions measured with an optical rheometer | rheologica acta - springer

Transient elongational viscosities of aqueous polyacrylamide solutions measured with an optical rheometer | Rheologica Acta - Springer

An anionic polyacrylamide solution was characterized in elongational flow by combining laser-Doppler velocimetry to determine the strain rate in the flow direction and the two-color flow-induced birefringence method to measure the first normal stress difference along the axial centerline of a hyperbolic die. The elongational rate was constant along the axial centerline of the planar hyperbolic

Get Price