chemical degradation of polyacrylamide by advanced

Chemical degradation of polyacrylamide by advanced …

Chemical degradation of polyacrylamide by advanced oxidation processes This paper presents the results obtained from the oxidation of polyacrylamide (PAM) by the UV/H2O2, Fenton, UV/Fenton, visible light/Fenton, visible light/Fenton/C2O4(2-), UV/Fenton/C2O4(2-), visible light/Fenton/C4H4O6(2-) and UV/Fenton/C4H4O6(2-) processes.,Chemical degradation of polyacrylamide by advanced … ,Chemical degradation of polyacrylamide by advanced oxidation processes Mang Lu School of Materials Science and Engineering , Jingdezhen Ceramic Institute , Taoyang Road, Jingdezhen , 333001 , Jiangxi Province , China ; Jiangxi Provincial Key Laboratory for Advanced Ceramic Material , Jingdezhen Ceramic Institute , Jingdezhen , 333001 , Jiangxi …,Chemical degradation of polyacrylamide by advanced … ,Polyacrylamides are generally considered as non-toxic polymers. They can be removed through thermal, photo-, biological, chemical, and mechanical degradation, but the acrylamide monomer, as a…

Chemical degradation of polyacrylamide by advanced …

Chemical degradation of polyacrylamide by advanced oxidation processes Author: Lu, Mang, Wu, Xuejiao, Wei, Xiaofang Source: Environmental technology 2012 v.33 no.9 pp. 1021-1028 ISSN: 1479-487X,Polyacrylamide degradation and its implications in … ,Thermal degradation of polyacrylamide (in the absence of free radicals) does not cause substantial chain scission except at very high temperatures, on the order of 300 °C.,ASSESSMENT OF POLYACRYLAMIDE DEGRADATION USING ADVANCED … ,Assessment of Polyacrylamide Degradation Using Advanced Oxidation Processes and Ferrate(VI) Oxidation REˆNNIO F. DE SENA, REGINA DE F. P. M. MOREIRA, AND HUMBERTO J. JOSE´

ASSESSMENT OF POLYACRYLAMIDE DEGRADATION USING ADVANCED …

(2013). ASSESSMENT OF POLYACRYLAMIDE DEGRADATION USING ADVANCED OXIDATION PROCESSES AND FERRATE(VI) OXIDATION.,Degradation of Polyacrylamide: A Review | Scientific.Net ,Water-soluble polyacrylamide is commercially available in different domains of industry, such as water purified, paper making, pharmacy, agriculture and oil exploitation. Especially polyacrylamide is used for polymer displacement, which can enhance oil recovery through increasing the sweeping efficiency.,Accelerated chemical degradation of polyacrylamide – Gao … ,The chemical degradation of polyacrylamide(PAM) at low temperature in aqueous medium was initiated by peroxides. The degradation degree of the polymer rose with the reaction time.

Chemical degradation of polyacrylamide by advanced …

Chemical degradation of polyacrylamide by advanced oxidation processes Mang Lu School of Materials Science and Engineering , Jingdezhen Ceramic Institute , Taoyang Road, Jingdezhen , 333001 , Jiangxi Province , China ; Jiangxi Provincial Key Laboratory for Advanced Ceramic Material , Jingdezhen Ceramic Institute , Jingdezhen , 333001 , Jiangxi …,Accelerated chemical degradation of polyacrylamide – Gao … ,The chemical degradation of polyacrylamide(PAM) at low temperature in aqueous medium was initiated by peroxides. The degradation degree of the polymer rose with the reaction time.,Chemical and Photolytic Degradation of Polyacrylamides … ,1.2 Polyacrylamide 6 2. Degradation of Polyacrylamides 7 2.1 Chemical Degradation of Polyacrylamides 8 2.2 Photodegradation of Polyacrylamides 12 3.

Chemical Degradation of Polyacrylamide Polymers Under …

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 presence of sodium carbonate.,Environmental degradation of polymers: an example of … ,About the speaker: Dr. Boya Xiong joined the Department of Civil, Environmental and Geo-Engineering at University of Minnesota as an assistant professor in August 2020.Dr.,Biodegradation of hydrolyzed polyacrylamide by a Bacillus … ,Hydrolyzed polyacrylamide (HPAM) is the most widely used water-soluble linear polymer with high molecular weight in polymer flooding. Microbiological degradation is an environment-friendly and effective method of treating HPAM-containing oilfield produced water.

Chemical Stability of Polyacrylamide Polymers | Journal of …

Summary. A comprehensive study of the chemical stability of polyacrylamide (PAA) polymers was conducted.,Chemical Degradation | Scientific.Net ,It is maybe an efficient mean to solve it with the degradation of polyacrylamide. So, this paper reviews the lately development on the research of the degradation of polyacrylamide, especially including ultrasonic degradation, thermal degradation, biodegradation and chemical degradation.,Photocatalytic degradation of poly(ethylene oxide) and … ,The degradation was conducted with two different UV lamps of 125 and 80 W. Degradation of PEO was observed in both the cases, whereas PAM degraded only when exposed to lamp of higher power, even in the presence of catalyst.

ASSESSMENT OF POLYACRYLAMIDE DEGRADATION USING ADVANCED …

The aim of this work was to investigate the degradation of six polyacrylamide (PAM) polymers when submitted to advanced oxidation processes (AOP) and ferrate(VI) oxidation. PAM is a highly versatile polymer made of acrylamide monomers, and it is widely used for water and wastewater treatment purposes.,Chemical and photolytic degradation of polyacrylamides … ,Table 2.1 Degradation pathways of polyacrylamides (Caufield et al., 2002) Degradation Pathways Thermal Photolytic Chemical Biological Mechanical Up to 200 C: relatively stable Bond scission from adsorption of UV irradiation Acidic hydrolysis Biological hydrolysis of amide group Reduction in viscosity and performance from external stimuli (i.e …,Chemical Degradation of Polyacrylamide during Hydraulic … ,Chemical Degradation of Polyacrylamide during Hydraulic Fracturing Boya Xiong , Zachary Miller, Selina Roman-White, Travis Tasker, Benjamin Farina, Bethany Piechowicz, William D. Burgos, Prachi Joshi, Liang Zhu, Christopher A.

Mechanical degradation of polyacrylamide at ultra high …

Degradation of drag reducer polyacrylamide under high volume hydraulic fracturing (HVHF) conditions alters its polymer size, distribution and chemical composition, potentially affecting the toxicity and treatability of the resulting wastewater. This study focused on a non-chemical pathway-mechanical degradat Polymers in liquid formulations,Chemical Degradation of Polyacrylamide during Hydraulic … ,Search in. search for Search Advanced Search.,Chemical Degradation of Polyacrylamide during Hydraulic … ,Chemical Degradation of Polyacrylamide during Hydraulic Fracturing. Boya Xiong Department of Civil and Environmental Engineering, ‡Department of Chemical Engineering, §Department of Material Science and Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.

Chemical Degradation of Polyacrylamide during Hydraulic …

Chemical Degradation of Polyacrylamide during Hydraulic Fracturing Boya Xiong, Zachary Miller, Selina Roman-White, Travis L Tasker, Benjamin Farina, Bethany Piechowicz, Prachi Joshi, Liang Zhu, Christopher A. Gorski, William D Burgos, Andrew L.,Photoelectrocatalytic degradation of polyacrylamide in … ,Supported cobalt azaphthalocyanine (NCoPc/CB) and methyl-substituted cobalt azaphthalocyanine (MeNCoPc/CB) composites were prepared, in which carbon black (CB) was used as a carrier, to solve the problem that polyacrylamide (HPAM) was difficult to be removed in the water. The physical and chemical properties of catalyst and photoelectrocatalytic degradation performance of HPAM was studied in a …,Mechanical degradation of polyacrylamide at ultra high … ,Degradation of drag reducer polyacrylamide under high volume hydraulic fracturing (HVHF) conditions alters its polymer size, distribution and chemical composition, potentially affecting the toxicity and treatability of the resulting wastewater. This study …

Chemical degradation of polyacrylamide by advanced …

Chemical degradation of polyacrylamide by advanced oxidation processes Environ Technol. Apr-May 2012;33(7-9):1021-8.,Chemical degradation of polyacrylamide by advanced … ,Chemical degradation of polyacrylamide by advanced oxidation processes Mang Lu School of Materials Science and Engineering , Jingdezhen Ceramic Institute , Taoyang Road, Jingdezhen , 333001 , Jiangxi Province , China ; Jiangxi Provincial Key Laboratory for Advanced Ceramic Material , Jingdezhen Ceramic Institute , Jingdezhen , 333001 , Jiangxi …,Chemical degradation of polyacrylamide by advanced … ,Download Citation | Chemical degradation of polyacrylamide by advanced oxidation processes | This paper presents the results obtained from the oxidation of polyacrylamide (PAM) by the UV/H2O2 …

Chemical degradation of polyacrylamide by advanced …

Chemical degradation of polyacrylamide by advanced oxidation processes Author: Lu, Mang, Wu, Xuejiao, Wei, Xiaofang Source: Environmental technology 2012 v.33 no.9 pp. 1021-1028 ISSN: 1479-487X,Degradation of polyacrylamide by combined advanced … ,Degradation of polyacrylamide by combined advanced oxidation process February 2009 Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology 41(2):137-140,ASSESSMENT OF POLYACRYLAMIDE DEGRADATION USING ADVANCED … ,Assessment of Polyacrylamide Degradation Using Advanced Oxidation Processes and Ferrate(VI) Oxidation REˆNNIO F. DE SENA, REGINA DE F. P. M. MOREIRA, AND HUMBERTO J. JOSE´

Polyacrylamide degradation and its implications in …

Chemical degradation of PAM that leads to chain scission involves activation of the polymer by free radicals, 42,62,63,64,65,66 most commonly hydroxyl radicals generated in the environment from …,Accelerated chemical degradation of polyacrylamide – Gao … ,The chemical degradation of polyacrylamide(PAM) at low temperature in aqueous medium was initiated by peroxides. The degradation degree of the polymer rose with the reaction time.,ASSESSMENT OF POLYACRYLAMIDE DEGRADATION USING ADVANCED … ,(2013). ASSESSMENT OF POLYACRYLAMIDE DEGRADATION USING ADVANCED OXIDATION PROCESSES AND FERRATE(VI) OXIDATION.

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