Microbial degradation of polyacrylamide and the
In this work, we review the publicly available literature on the microbial degradation of polyacrylamide and its deamination product polyacrylate. To our knowledge, biotic polyacrylamide degradation has been described only very briefly in two recent reviews ( Guezennec et al., 2015 ; Joshi and Abed, 2017 ).
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.
Microbial degradation of polyacrylamide by aerobic
(2012). Microbial degradation of polyacrylamide by aerobic granules. Environmental Technology: Vol. 33, No. 9, pp. 1049-1054.
Microbial degradation of polyacrylamide by aerobic granules Article in Environmental Technology 33(7-9):1049-54 · May 2012 with 67 Reads How we measure 'reads'
Biodegradation of p-Nitrophenol by Aerobic Granules in a
In this study, aerobic granules to treat wastewater containing p-nitrophenol (PNP) were successfully developed in a sequencing batch reactor (SBR) using activated sludge as inoculum. A key step was the conditioning of the activated sludge seed to enrich for biomass with improved settleability and higher PNP degradation activity by implementing progressive decreases in settling time and
The pyridine degradation tests suggested that granules completely degraded 250–1500 mg/L pyridine at a constant rate with no time lag, and with 12 and 15-h time lag at 2000 and 2500 mg/L pyridine concentration, respectively. Significant effect was noted for pyridine degradation by aerobic granules at concentration >2500 mg/L pyridine.
P-nitrophenol biodegradation by aerobic microbial granules.
Mixed microbial consortia in the form of aerobic microbial granules (AMG) capable of xenobiotic degradation can be developed from activated sludge or by adaptation of microbial granules pre-grown on labile carbon sources. Both of these approaches were investigated for the cultivation of AMG capable of p-nitrophenol (PNP) biodegradation.
Microbial degradation of polyacrylamide by aerobic granules. Environmental Technology 2012, 33 (9) , 1049-1054. DOI: 10.1080/09593330.2011.606846. Marcos P. S. Gomes, Marta Costa. Determination of the critical concentration of partially hydrolyzed polyacrylamide by potentiometry in an acidic medium.
Microbial Composition and Structure of Aerobic Granular
Aerobic activated sludge granules are dense, spherical biofilms which can strongly improve purification efficiency and sludge settling in wastewater treatment processes. In this study, the structure and development of different granule types were analyzed. Biofilm samples originated from lab-scale sequencing batch reactors which were operated with malthouse, brewery, and artificial wastewater.
(2012). Chemical degradation of polyacrylamide by advanced oxidation processes. Environmental Technology: Vol. 33, No. 9, pp. 1021-1028.
Biodegradation of pyridine using aerobic granules
Aerobic granules cultivated with 500mg/L phenol medium effectively degraded pyridine at a concentration of 250–2500mg/L; maximum degradation rate was 73.0mg pyridineg/VSS/h at 250mg/L pyridine concentration. Phenol concentrations of 500–2000mg/L limited pyridine degradation in a competitive inhibition pattern, as interpreted using Michaelis–
Non-hydrolyzed polyacrylamide (PAM) and partially hydrolyzed polyacrylamide (HPAM) are commonly used polymers in various industrial applications, including in oil and gas production operations. Understanding the microbial utilization of such polymers can contribute to improved recovery processes and help to develop technologies for polymer remediation.
- What is polyacrylamide gel electrophoresis?
- Different separation media and mechanisms allow subsets of these molecules to be separated more effectively by exploiting their physical characteristics. For proteins in particular, polyacrylamide gel electrophoresis (PAGE) is often the technique of choice. What is polyacrylamide gel electrophoresis and what is protein electrophoresis?
- What is polyacrylamide gel?
- Related Topics: Protein Standards, Buffer Systems and Gel Chemistries, and Handcasting Polyacrylamide Gels. Polyacrylamide gels are prepared by free radical polymerization of acrylamide and a comonomer crosslinker such as bis-acrylamide.
- Why is polyacrylamide gel used for large-molecular-weight proteins?
- Large-molecular-weight proteins have a limited migration in polyacrylamide gels and will move through agarose due to the greater pore size. Therefore, this type of gel is applied for proteins greater than 200 kDa, because electro-osmosis disturbs the focusing process of smaller species .
- How does polyacrylamide gel form?
- The polyacrylamide gel forms by polymerizing acrylamide and a crosslinking agent, i.e., N, N’-methylene-bis-acrylamide. It does not react with proteins and consists of pores and channels that allow the protein to move through it.
