Novel flocculating agent based on sodium alginate and acrylamide

Tripathy, Tridib; Pandey, Sushant; Karmakar, N. C.; Bhagat, R P; Singh, R. P.

doi:10.1016/s0014-3057(98)00284-5

Cited by 103 publications

(41 citation statements)

References 11 publications

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“…Many synthesized flocculants have been reported by grafting PAM onto, amylopectin [5], sodium alginate [6], Glycogen [7], sago starch [8] and corn starch [9]. It can be highlighted that graft copolymers are more effective than the linear ones due to their greater "approachability" to the suspended particles [2,10].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of grafted flocculants based on several kinds of starch and its performance in water turbidity removal

Kaavessina

Distantina

2017

MATEC Web Conf.

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Abstract. Taro starch, cassava starch and also their modified were prepared as a backbone of grafted flocculants. These flocculants were synthesized by combining the properties of synthetic and natural polymer via the 'grafting to' method that separated into two stages. The first stage was synthesizing of nonterminated polyacrylamide (nt-PAM) and then followed by the second stage grafting of the nt-PAM onto several kinds of starch. The intrinsic viscosity (K) and average molecular weight (Mv) of starches-g-PAM were observed and their molecular structures were analyzed by using Fourier Transform Infra-Red (FTIR). Finally, the obtained flocculants were tested to evaluate their performance for the treatment of the simulated water turbidity containing 10 g of kaolin in 1000 ml of aquadest. The results showed that all the grafted flocculants can be good comparable to some commercial organic flocculants. The percentages of the water turbidity removal for each of backbones are 93.6% (taro starch), 91.2% (cassava starch), 95.3% (modified taro starch) and 94.1% (modified cassava starch). It can be highlighted that the modified taro starch exhibited the best performance in water turbidity removal up to 95%.

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Section: Introductionmentioning

confidence: 99%

Synthesis of grafted flocculants based on several kinds of starch and its performance in water turbidity removal

Kaavessina

Distantina

2017

MATEC Web Conf.

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“…The alginate powder showed no distinct peaks, indicating its amorphous structure. [31] The alginate-based nanofiber exhibited a strong band at approximately 16°, indicating a certain degree of crystallinity. This enhanced crystallinity is likely to be due to realignment of alginate chains during the electrospinning process, forming a higher degree of molecular order in the material's structure.…”

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confidence: 98%

Alginate‐Based Nanofibrous Scaffolds: Structural, Mechanical, and Biological Properties

et al. 2006

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“…Hence make u n c o r r e c t e d p r o o f 5 it work more effective and efficient compared to when it is in free condition. [21][22][23] The cross linked alginate hydrogels have been used as a controlled release medium for drugs, [24][25][26][27][28] Pesticides, 29 superabsorbent filament fibers 30 and flocculants. 31 In the presence of an aqueous solution, the polymer chains absorb water and the association, dissociation and binding of various ions to polymer chains causes the hydrogel to swell.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and swelling behavior of sodium alginate / poly (vinyl alcohol) hydrogels

Demappa¹,

Rudrappa²

2018

tjps

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Objectives: Hydrogels are macromolecular networks able to absorb and release water/biological fluids in a reverse phase manner, in response to specific environmental stimuli. Such stimuli -sensitive behavior makes hydrogels interesting for the design of smart devices applicable to a variety of technological fields. They are able to absorb and retain 10-20% and upto 1000 times of water or biological fluids than their dry weight. The aim of this study is to extend the work in drug delivery in stomach at pH 2-2.2. Methods:The authors are synthesized sodium alginate/poly (vinyl alcohol) hydrogels. These hydrogels are characterized by FTIR, SEM, swelling properties of hydrogels in different pH, in salts, different temperature, different acids and bases. Results:The authors studied and reported that the swelling effects or variations such as effect of salts, acids, bases, temperature and pH. The effect of crosslinking agent glutaraldehyde shows that the 8 mL glutaraldehyde has the highest swelling rate as compare to that of 10 mL and 12 mL. Conclusions:In this work authors studied the swelling degree in different acids and bases. We are concluded that the degree of swelling is decreased with increase in the concentration of the glutaraldehyde and also depending on the concentration of the acids. The swelling degree of PVA/SA hydrogels are

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Novel flocculating agent based on sodium alginate and acrylamide

Cited by 103 publications

References 11 publications

Synthesis of grafted flocculants based on several kinds of starch and its performance in water turbidity removal

Synthesis of grafted flocculants based on several kinds of starch and its performance in water turbidity removal

Alginate‐Based Nanofibrous Scaffolds: Structural, Mechanical, and Biological Properties

Synthesis and swelling behavior of sodium alginate / poly (vinyl alcohol) hydrogels

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