Synthesis of a cationic polyacrylamide by a photocatalytic
In this study, a series of cationic polyacrylamides (TPADs) with excellent flocculation/dewatering performance and low dosage were synthesized through photocatalytic surface initiation using acrylamide (AM) and acryloyloxyethyl trimethylammonium chloride (DAC) as monomers and nano-TiO 2 as an initiator.
Synthesis of cationic polyacrylamide by low-pressure UV initiation for turbidity water flocculation. Chemical Engineering Journal 2017 , 312 , 20-29. DOI: 10.1016/j.cej.2016.11.114.
Synthesis of cationic polyacrylamide by low-pressure UV
In this work, a novel cationic polyacrylamide (PAMD) was synthesized by acrylamide (AM) diallyl dimethyl ammonium chloride (DMD) and dodecyl polyglucoside (DPL) under low-pressure ultraviolet (UV...
Synthesis of a Cationic Polyacrylamide under UV Initiation and Its Flocculation in Estrone Removal A ternary cationic polyacrylamide (CPAM) with the hydrophobic characteristic was prepared through ultraviolet- (UV-) initiated polymerization technique for the estrone (E1) environmental estrogen separation and removal.
Removal of emulsified oil from water using hydrophobic
Abstract. This study investigated a hydrophobic-modified cationic polyacrylamide (PAMP) synthesized through low-pressure UV-initiated copolymerization by using monomers of acrylamide (AM), diallyl dimethyl ammonium chloride aqueous solution (DADMAC), and dodecyl polyglucoside (DPL) to effectively remove emulsified oil from water.
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Cationic polyacrylamide manufacturers and suppliers | Oubo
Cationic Polyacrylamide is a white granule and it is a linear high molecular compound which is soluble in water. It is non-toxic and odorless, easily absorbs moisture, is insoluble in ethanol, acetone and other organic solvents, has positive charge active groups on molecular chains, and has excellent flocculation effect.
Synthesis of cationic polyacrylamide by low-pressure UV initiation for turbidity water flocculation. Chemical Engineering Journal 2017 , 312 , 20-29. DOI: 10.1016/j.cej.2016.11.114.
Synthesis of a Cationic Polyacrylamide under UV Initiation
ResearchArticle Synthesis of a Cationic Polyacrylamide under UV Initiation and Its Flocculation in Estrone Removal JiaoxiaSun ,1,2 XiqinMa ,1,2 XiangLi,3 JianxinFan,1,2 QingkongChen,1,2 XuelianLiu,1,2 andJinPan1,2 SchoolofRerandOceanEngineer,ChongqingJiaotongUniversity,Chongqing, China
Carboxymethyl chitosan (CMCS), acrylamide, and methacryloxyethyltrimethyl ammonium chloride were used as co-monomers to produce a sludge dewatering agent carboxymethyl chitosan-graft-poly(acrylamide-methacryloxyethyltrimethyl ammonium chloride) (CCPAD) by UV-induced graft polymerization. Single-factor experiments and response surface methodology were employed to investigate and optimize the
Research Article Photoinitiated Polymerization of Cationic
polymerization initiated by UV light are mostly concerned with the microstructure and reaction kinetics of resulting cationic copolymers [ ], and other similar polymerization of P(AM-DAC) was carried out under the irradiation of metal halide lamps or low pressure mercury lamp [ , ] Consideringthelowe ciencyoflowpressuremercurylamp
This work presents a preparation process and flocculation performance evaluation of a novel cationic polyacrylamide PADC synthesized by low-pressure ultraviolet (UV) initiation.
- How is polyacrylamide biodegraded?
- Both single microbial species as well as mixed populations have been investigated for degradation. Biodegradation of polyacrylamide begins with amidase catalysed deamination of polyacrylamide to ammonia and polyacrylate. The liberated ammonia is then used as a nitrogen source for growth by the microbes.
- Is polyacrylate more recalcitrant to biodegradation than amide?
- The carbon backbone, polyacrylate, is more recalcitrant to biodegradation than the amide moieties. There are nevertheless reports on microbial growth with polyacrylamide and polyacrylate as the carbon sources.
- Is polyacrylamide used in sludge dewatering anaerobic digestion?
- Polyacrylamide (PAM) used in sludge dewatering widely exists in high-solid anaerobic digestion. Degradation of polyacrylamide accompanied with accumulation of its toxic monomer is important to disposition of biogas residues. The potential of anaerobic digestion activity in microbial utilization of PAM was investigated in this study.
- Does biological filtration improve polyacrylamide biodegradation?
- Freedman, D. E. et al. Biologically active filtration for fracturing flowback and produced water treatment. J. Water Process Eng. 18, 29–40 (2017). Dai, X. et al. Waste-activated sludge fermentation for polyacrylamide biodegradation improved by anaerobic hydrolysis and key microorganisms involved in biological polyacrylamide removal.
