• electrolytic degradation of polyacrylamide in aqueous

    Electrolytic degradation of polyacrylamide in aqueous

    2012-11-01· (2013). Electrolytic degradation of polyacrylamide in aqueous solution using a three-dimensional electrode reactor. Desalination and Water Treatment: Vol. 51, No. 13-15, pp. 2687-2694.

  • electrolytic degradation of polyacrylamide in aqueous

    Electrolytic degradation of polyacrylamide in aqueous

    Electrolytic degradation of polyacrylamide in aqueous solution using a three-dimensional electrode reactor Article in Desalination and water treatment 51(13-15):2687-2694 · March 2013 with 12 Reads

  • electrolytic degradation of polyacrylamide in aqueous

    Electrolytic degradation of polyacrylamide in aqueous

    EBSCOhost serves thousands of libraries with premium essays, articles and other content including Electrolytic degradation of polyacrylamide in aqueous solution using a three-dimensional electrode reactor. Get access to over 12 million other articles!

  • polyacrylamide

    Polyacrylamide

    In dilute aqueous solution, such as is commonly used for Enhanced Oil Recovery applications, polyacrylamide polymers are susceptible to chemical, thermal, and mechanical degradation. Chemical degradation occurs when the labile amide moiety hydrolyzes at elevated temperature or pH, resulting in the evolution of ammonia and a remaining carboxyl

  • electrolytic degradation of polyacrylamide in aqueous

    Electrolytic degradation of polyacrylamide in aqueous

    Electrolytic degradation of polyacrylamide in aqueous solution using a three-dimensional electrode reactor Zhi-Hong Kang a, Hong-Kai Li a, Yao-Hui Xu b & Lin Chen a a School of Energy Resources, China University of Geosciences, Beijing, 100083, China b Department of Geochemistry, Yangtze University, Nanhuan Road, Jingzhou, 434023, China

  • polyacrylamide degradation and its implications

    Polyacrylamide degradation and its implications

    2018-09-07· Thermal degradation of polyacrylamide (in the absence of free radicals) does not cause substantial chain scission except at very high temperatures, on the

  • chemical degradation of polyacrylamide by advanced

    Chemical degradation of polyacrylamide by advanced

    Chemical degradation of polyacrylamide by advanced oxidation processes Article in Environmental Technology 33(7-9):1021-8 · January 2011 with 158 Reads How we measure 'reads'

  • biodegradation of polyacrylamide and its derivatives

    Biodegradation of Polyacrylamide and Its Derivatives

    2017-05-04· Although polyacrylamide (PAM) and its derivatives have many useful applications, their release in nature can have impacts on the environment and human health, thus bioremediation approaches for residual PAM are urgently needed. Biodegradation of PAM and its derivatives has been studied only in the last two decades, with most emphasis on acrylamide biodegradation.

  • partial degradation of phenol by advanced electrochemical

    Partial Degradation of Phenol by Advanced Electrochemical

    The partial electrocatalytic degradation of phenol to organic acids has been investigated using an undivided electrolytic reactor with a β-PbO2 anode containing fluorine resin. It was found that the decrease of benzoquinone (BQ) formed during phenol dedgadation and the acceleration of the process from phenol to organic acids are possible under an optimized operating condition. A possible

  • electrolytic treatment of methyl orange in aqueous

    Electrolytic treatment of methyl orange in aqueous

    2013-04-02· The treatment of wastewater containing methyl orange was investigated experimentally using a three‐dimensional electrode reactor coupling ultrasonics and the effect of ultrasonics on the degradation was studied. The effects of cell voltage, original concentration of methyl orange, pH value and the concentration of electrolyte on the removal

  • study on degradation of oily wastewater by immobilized

    Study on Degradation of Oily Wastewater by Immobilized

    2019-09-17· In this work, four immobilized kinds of mixed microorganisms were prepared by uploading oil-degradation bacteria into the cross-linked biodegradable polyacrylamide and sodium alginate mixture supporting material, which were employed for efficient degradation of oily wastewater.

  • reasons for poor flocculation of polyacrylamide brovie

    Reasons For Poor Flocculation Of Polyacrylamide Brovie

    UV irradiation causes the rapid degradation of polyacrylamide and the oxidant in solution can also accelerate the degradation. Knowing the factors of the reduced flocculation of polyacrylamide products, we can avoid all the disadvantages above in use and make the best use of them.

  • transfer and degradation of polyacrylamide-based

    Transfer and degradation of polyacrylamide-based

    2014-09-26· The aim of this review was to summarize information and scientific data from the literature dedicated to the fate of polyacrylamide (PAM)-based flocculants in hydrosystems. Flocculants, usually composed of PAMs, are widely used in several industrial fields, particularly in minerals extraction, to enhance solid/liquid separation in water containing suspended matter. These polymers can contain

  • photoelectrocatalytic degradation of partially hydrolyzed

    Photoelectrocatalytic degradation of partially hydrolyzed

    The product was ultrasonically impregnated onto carbon black (CB), wherein particle electrodes (tBu-TpyzPzCo/CB) were employed for the degradation of partially hydrolyzed polyacrylamide (HPAM) in a three-dimensional electrocatalytic system under xenon lamp. HPAM exhibited more efficient degradation in the presence of a supporting catalyst using

  • three reasons why polyacrylamide is not effective

    Three Reasons Why Polyacrylamide Is Not Effective

    3. Polyacrylamide is more sensitive to iron ion, calcium ion, magnesium ion than anionic polymer material. Iron ion is the catalyst that causes the chemical degradation of all polyacrylamide. Therefore, when preparing, transferring and storing polyacrylamide solution, it is better to avoid iron ion entering and solution storage equipment is

  • gel electrophoresis

    Gel electrophoresis

    Gel electrophoresis is a method for separation and analysis of macromolecules (DNA, RNA and proteins) and their fragments, based on their size and charge.It is used in clinical chemistry to separate proteins by charge or size (IEF agarose, essentially size independent) and in biochemistry and molecular biology to separate a mixed population of DNA and RNA fragments by length, to estimate the

  • γ-feooh graphene polyacrylamide carbonized aerogel

    γ-FeOOH graphene polyacrylamide carbonized aerogel

    2019-03-01· Novel γ-FeOOH graphene polyacrylamide carbonized aerogel (γ-FeOOH GPCA) was used as the cathode in neutral electro-Fenton (EF) process to achieve degradation and mineralization of sulfamethoxazole (SMX). γ-FeOOH GPCA cathode was fabricated by a multiple-phase carbonization method, leading to a good conductivity (26.37 Sm −1 with 7.5 mg mL −1 GO) and high

  • the stability of the polyacrylamide flocculant

    The stability of the polyacrylamide flocculant

    The prevention of the polyacrylamide degradation and the degradation time of the polyacrylamide. The cationic polyacrylamide aqueous solution has high viscosity, it can automatically degrade into the acrylamide solution after a certain time, the general degradation time is two to three days. When the cationic polyacrylamide is completely

  • enhanced electrolytic degradation of

    ENHANCED ELECTROLYTIC DEGRADATION OF

    2016-01-14· The controlled electrolytic material, which is discussed further below, can be an electrolytic metal such as described in U.S. patent application Ser. No. 13/194,271, the content of which is incorporated herein by reference in its entirety. Removal of the electrolytic material from the downhole article causes degradation of the downhole article.

  • electrolytic treatment of methyl orange in aqueous

    Electrolytic treatment of methyl orange in aqueous

    (2010). Electrolytic treatment of methyl orange in aqueous solution using three‐dimensional electrode reactor coupling ultrasonics. Environmental Technology: Vol. 31, No. 4, pp. 417-422.

  • indian journal of materials science hindawi

    Indian Journal of Materials Science Hindawi

    Thermal degradation profiles of the grafted polymers were studied and the corresponding thermograms are presented in Figures 2 and 3. For Pec-g-PAAm, the thermal degradation occurs in three stages. The first step of degradation occurs in the range of 30–200°C where a weight loss of 14.6% is observed.

  • adsorption characteristics of polyacrylamide and sulfonate

    Adsorption Characteristics of Polyacrylamide and Sulfonate

    Adsorption Characteristics of Polyacrylamide and Sulfonate-Containing Polyacrylamide Copolymers on Sodium Kaolinite AGNES F. HOLLANDER, P. SOMASUNDARAN, and CARL C. GRYTE,* Department of Chemical Engineering and Applied Chemistry and Henry Krumb School of Mines, Columbia University, New York, New York 10027 Synopsis

  • 中国地质大学(北京)科技信息网 cugb.edu.cn

    中国地质大学(北京)科技信息网 cugb.edu.cn

    康志宏, Kang, Z. H., Li, H. K., Xu, Y. H. and Chen, L.. Electrolytic degradation of polyacrylamide in aqueous solution using a three-dimensional electrode reactor.

  • enhanced electrolytic degradation of

    ENHANCED ELECTROLYTIC DEGRADATION OF

    enhanced electrolytic degradation of controlled electrolytic material Nov 8, 2011 Baker Hughes Incorporated A method for degrading a downhole article includes exposing the downhole article to a composition comprising a corrosive agent selected from a reducing sugar, ester, aminocarboxylic acid, or a combination thereof.

  • enhanced electrolytic degradation of controlled

    Enhanced electrolytic degradation of controlled

    Enhanced electrolytic degradation of controlled electrolytic material . United States Patent 9187686 . Abstract: A method for degrading a downhole article includes exposing the downhole article to a composition comprising a corrosive agent selected from a reducing sugar, ester, aminocarboxylic acid, or a combination thereof. The method also includes contacting the downhole article with the

  • contents volume 51/13–15

    Contents Volume 51/13–15

    Electrolytic degradation of polyacrylamide in aqueous solution using a three-dimensional electrode reactor Z.-H. Kang, H.-K. Li (Beijing, China), Y.-H. Xu (Jingzhou, China) and L. Chen (Beijing, China).. 2687 Coupling of physico-chemical treatment and steel membrane filtration to enhanced organic removal in wastewater treatment

  • sds-page

    SDS-PAGE

    SDS-PAGE (sodium dodecyl sulfate–polyacrylamide gel electrophoresis) is a variant of polyacrylamide gel electrophoresis, an analytical method in biochemistry for the separation of charged molecules in mixtures by their molecular masses in an electric field.It uses sodium dodecyl sulfate (SDS) molecules to help identify and isolate protein molecules.

  • impact of anionic polyacrylamide on stability and surface

    Impact of anionic polyacrylamide on stability and surface

    The stability mechanism and thermal properties of the system alumina–anionic polyacrylamide (PAM) was studied. The polymer’s adsorption properties in dependence on the following parameters solution pH (in the range 3–9), temperature (in the range 15–35 °C), and carboxyl groups’ content in the PAM chains (in the range 5–30 %) were examined.

  • polyacrylamide mechanical degradation and stability

    Polyacrylamide Mechanical Degradation and Stability

    The level of degradation in the presence of iron is consistent with other literature for the same polymer. However, the mechanical degradation data is new for this specific HPAM. We divided the chemical and mechanical components of the degradation and quantified the viscosity loss due to each of these phenomena. Additionally, we saw that the

  • environmental consequences of polymer flooding earthdoc

    Environmental Consequences of Polymer Flooding Earthdoc

    Summary Worldwide polymer flooding (PF) is being introduced as a viable option for increasing recovery rates. In PF projects, back-produced polymer are ideally disposed of by reinjection or injection to a deposit well. However, significant challenges with offshore produced polymer water management creates possibilities for intermittent overboard discharge.

  • polyacrylamide mechanical degradation and stability

    Polyacrylamide Mechanical Degradation and Stability

    The level of degradation in the presence of iron is consistent with other literature for the same polymer. However, the mechanical degradation data is new for this specific HPAM. We divided the chemical and mechanical components of the degradation and quantified the viscosity loss due to each of these phenomena. Additionally, we saw that the

  • in vitro degradation of medical polyacrylamide

    In Vitro Degradation of Medical Polyacrylamide

    Polyacrylamide (PAM) was usually atoxic, stable. Its hydrogel (PAMG) has been used in plastic and aesthetic surgery more than 10 years in P.R.China, Ukraine and Russia. But there were some complications with PAMG injected in patients. Considering the complicacy in vivo, it was necessary to study the PAMG’s stability. In this paper, H2O2 was added in PAMG in vitro and acrylamide (AM)

  • miracle, mythor marketing

    miracle, mythor marketing

    over whether the degradation of polyacrylamide gels provides a constant, significant source of environmental acrylamide. On one hand there are the researchers who claim that microbes quickly metabolize the nitrogen from the polymer, eliminating the possibility of acrylamide production (acrylamide contains nitrogen). Yet others have argued that degrading gels do produce measurable levels of

  • electrolytic degradation of polyacrylamide in aqueous

    Electrolytic degradation of polyacrylamide in aqueous

    Electrolytic degradation of polyacrylamide in aqueoussolution using a three-dimensional electrode reactorZhi-Hong Kang a,Hong-Kai Li a,Yao-Hui Xu b & Lin Chen aa School of Energy Resources,China University of Geosciences,Beijing,100083,Chinab Department of Geochemistry,Yangtze University,Nanhuan Road, Jingzhou,434023 ,China

  • chemical degradation of polyacrylamide polymers

    Chemical Degradation of Polyacrylamide Polymers

    Abstract Hydrolysis of polyacrylamide-based polymers is rapid and extensive under the alkaline conditions typical of alkaline-surfactant-polymer (ASP) flooding. Even at room temperature, significant hydrolysis occurs within one to two months in the

  • degradation of polyacrylamide in oil wastewater

    Degradation of Polyacrylamide in Oil Wastewater

    Electrocatalytic oxidation of polyacrylamide (PAM) at Ti/PbO2 anode was studied in a three-electrode cell without any diaphragm but with a sandwich bath by galvanostatic electrolysis. Turbidimetry was used to determine the concentration of PAM. The change of degradation ratio with current density and reaction temperature was studied through single factor experiment in order to determine the

  • backyard gardener hydrogels: are they safe? january

    Backyard Gardener Hydrogels: Are They Safe? January

    During the manufacture of PAM gels, residual acrylamide is present as a contaminant and strictly regulated in the United States to levels no more than 0.05% or 500 ppm for agricultural use. However, an international study recommended that polyacrylamide gels used in cosmetics contain a residual monomer level of only 0.1 to 0.5 ppm. Therefore

  • electrochemical degradation of pulp and paper mill

    Electrochemical Degradation of Pulp and Paper Mill

    Electrochemical Degradation of Pulp and Paper Mill Wastewater. Part 1. COD and Color Removal S. Mahesh, B. Prasad, I . D. Mall, and I . M. Mishra* Department of Chemical Engineering, Indian Institute of Technology, Roorkee, Roorkee-247 667, Uttaranchal, India The electrochemical degradation of agri-based paper mill wastewater (black liquor) was investigated in a 2 dm 3 electrolytic batch

  • china polyacrylamide powder manufacturers, suppliers

    China Polyacrylamide Powder Manufacturers, Suppliers

    Solid Powder Polyacrylamide. Polyacrylamide is produced from acrylamide, polymerization under the action of initiator. After the reaction is completed, the polyacrylamide rubber blocks are cut, granulated, dried and crushed to produce polyacrylamide products. Polymerization is the key process. In the subsequent treatment process, attention

  • iop conference series: earth and environmental science

    IOP Conference Series: Earth and Environmental Science

    Figure 3 Electrolytic on polymer degradation Figure 3 showed that the speed of polymer degradation was slow within the first 60 minutes, but the polymer degraded rapidly then. The polymer degradation rate can achieve to 90% after 120 minutes, but the whole processing took a longer time. The temperature had some influence on polymer degradation,

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