Study of algal biomass harvesting using cationic guar gum from the natural plant source as flocculant

Banerjee, Chiranjib; Ghosh, Sandipta; Sen, Gautam; Mishra, Sumit; Shukla, Pratyoosh; Bandopadhyay, Rajib

doi:10.1016/j.carbpol.2012.09.022

Cited by 138 publications

(37 citation statements)

References 29 publications

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“…Moreover, the positive charges of the quaternary ammonium groups of cationic starch are less sensitive to pH, allowing the starch to operate over a broader pH range than chitosan. Other biopolymers that have been cationically modified for microalgae harvesting include guar gum (Banerjee et al 2013) and cassia gum (Banerjee et al 2014). …”

Section: Polymer Flocculationmentioning

confidence: 99%

Harvesting of Microalgae by Means of Flocculation

Muylaert

Vandamme

Foubert

et al. 2015

Biofuel and Biorefinery Technologies

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Large-scale production of microalgae for biofuels is still facing several major challenges to become competitive with other forms of renewable and nonrenewable energy. A major challenge is harvesting, which requires the separation of a low amount of biomass consisting of small individual cells from a large volume of culture medium. Flocculation is seen as a promising low-cost harvesting method for microalgae biomass. In this chapter, the challenges and potential advantages of using flocculation as a harvesting method for microalgae are reviewed.

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Section: Polymer Flocculationmentioning

confidence: 99%

Harvesting of Microalgae by Means of Flocculation

Muylaert

Vandamme

Foubert

et al. 2015

Biofuel and Biorefinery Technologies

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“…In this review, we have described the synthesis techniques and flocculation efficiency associated with several non-ionic (1-26, cationic , anionic (60)(61)(62)(63)(64)(65)(66)(67)(68)(69)(70)(71)(72) and amphoteric (73)(74)(75)(76)(77)(78)(79)(80)(81)(82) polymers, and a summary of each type of polymeric flocculant is presented in Table 1 to Table 4, respectively. The development of synthetically-modified polysaccharide-based materials was observed to be of significant research interest recently due to their aforementioned biodegradable characteristics compared to synthetic flocculants.…”

Section: Discussionmentioning

confidence: 99%

“…74 Apart from DMC, monomers such as N-vinyl formamide (NVF), and dimethyl acryloyloxyethyl benzyl ammonium chloride were grafted onto chitosan to develop cationic polymers 47 and 48, respectively. 75,76 Cationic moieties such as N-3-chloro-2-hydroxypropyl trimethylammonium chloride, N-alkyl-N,N-dimethyl-N-2-hydroxypropyl ammonium chloride, 3-acrylamidopropyl trimethylammonium chloride, 3-methacryloylaminopropyl trimethylammonium chloride, NVF and DMC were used in modification of many different polysaccharides, including guar gum (49), 77 carboxymethyl guar gum (50), 17 salep (51), 78 corn cob (52), 79,80 glycogen (53), 81 amylopectin (54), 82 dextran (55), 83 pullulan (56), 84 inulin (57), 85 xylan (58), 86 and tamarind kernel polysaccharide (59). 87 …”

Section: Cationically-modified Polysaccharidesmentioning

confidence: 99%

Synthesis, properties and performance of organic polymers employed in flocculation applications

2016

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A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP URL' above for details on accessing the published version and note that access may require a subscription. Flocculation is a common technique that is widely used in many industrial applications to promote solid-liquid separation processes. The addition of a polymeric flocculant allows for destabilization of suspended colloidal particles, and thus significantly increases their sedimentation rate. Polymeric flocculants are generally divided into four categories, which include non-ionic, cationic, anionic, and amphoteric polymers. This minireview article summarises important information on the recent design and synthesis of polymeric materials from these four categories. In addition, their properties and flocculation efficiency are also presented and discussed.

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“…Synthetically tethered polysaccharides combine the best properties of both natural and synthetic polymers and that is why they are at the forefront of current industrial research. Low carbon footprint, coupled with high flocculation effectiveness, has made them a suitable flocculant for water treatment as well as algal biomass harvesting [15,16]. Inulin is a natural, renewable, biodegradable and polydisperse fructan.…”

Section: Abbreviationsmentioning

confidence: 99%