The role of sodium alginate in improving floc size and strength and the subsequent effects on ultrafiltration membrane fouling

Wang, Yan; Li, Xiangzuo; Wu, Changzhi; Zhao, Yanxia; Gao, Baoyu

doi:10.1080/09593330.2013.800589

Cited by 13 publications

(4 citation statements)

References 24 publications

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“…Cationic polyacrylamides, Polydiallyldimethylammoniumchloride and polyamines have been found to yield carcinogenic by-product N-nitroso dimethylamine (NDMA), during the ozonation process; polydiallyldimethylammonium chloride produces high concentration of NDMA in several water treatment plants. In view of the health and safety threats posed by synthetic polymers such as APAM, there is an increasing need for coagulant aid that are not only environmentally friendly, but also effective [36].…”

Section: Sift Deskmentioning

confidence: 99%

“…Sodium Alginate is a sodium salt of the alginic acid. It is an anionic polymer that has linear chain structure and is water soluble [36]. It is ecofriendly and used widely in production of beads, microsphere, microcapsule and drug tablets [39].…”

Section: Sift Deskmentioning

confidence: 99%

“…It is ecofriendly and used widely in production of beads, microsphere, microcapsule and drug tablets [39]. Sodium Alginate has been used reportedly as a coagulant aid to enhance the removal of humic acid [36]. In principle it can improve flocs characteristics and overall coagulation efficiency.…”

Section: Sift Deskmentioning

confidence: 99%

See 2 more Smart Citations

Eco-friendly decolorization of cationic dyes by coagulation using natural coagulant Bentonite and biodegradable flocculant Sodium Alginate

Wei¹,

Mcyotto²,

Chow³

et al. 2020

SDRP-JESES

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Section: Sift Deskmentioning

confidence: 99%

Section: Sift Deskmentioning

confidence: 99%

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Eco-friendly decolorization of cationic dyes by coagulation using natural coagulant Bentonite and biodegradable flocculant Sodium Alginate

Wei¹,

Mcyotto²,

Chow³

et al. 2020

SDRP-JESES

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“…niques [14], computational fluid dynamics (CFD) [15], shear stress [16,17] sonication/capillary suction time (CST) [18], and light scattering technique [3,19,20]. Particularly, floc strength is a very important floc property because flocs are exposed to shear stresses in the flocculation.…”

mentioning

confidence: 99%

Characterization of Flocs in Dewatering of Coal Plant Tailings

Güngören

Baktarhan

Kurşun

et al. 2018

Hittite J. Sci. Eng.

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L ignite coal, which has a large share in world coal reserves, must be subjected to coal preparation processes in coal washing plants due to its low calorific value and high ash content. After these processes, the huge amount of tailings is produced from the plants, and they must be dewatered before disposal. For this purpose, flocculation is a widely preferred method for solid-liquid separation of fine coal tailings. In this method, long-chain polymers are used to bind particles together to form bigger particles to settle them easier and faster. Flocculation process is affected by various parameters including solid ratio, pH, temperature, stirring speed and time, molecular weight, chain length, charge, and dosage of flocculant. In the flocculation process, flocs with several physical characteristics such as size, structure, and strength are formed depending on these flocculation conditions. Different floc characteristics are preferred for various processes. For example, strong and high-density flocs are favorable in filtration, but not in sedimentation processes. Therefore, it is extremely important to characterize the flocs to optimize the flocculation processes [1-7]. For this reason, there have been various studies on the investigation of floc size, density, structure, and strength [8-13]. Different techniques were used for the floc strength measurements such as image-based tech-Article History:

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Removal of sulphur black dye from its aqueous solution using alginate from Sargassum sp. (Brown algae) as a coagulant

Vijayaraghavan

Shanthakumar

2015

Env Prog and Sustain Energy

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This study deals with the coagulation potential of alginate extracted from marine algae Sargassum sp. for the removal of sulphur black dye from its aqueous solution. The alginate extraction was found to be efficient (44.8%) and the extracted alginate was characterized by Fourier transform infrared spectroscopy and Scanning electron microscopy techniques. Batch experiments (coagulation test) were performed to investigate the effect of alginate dose (10‐60 mg/L), calcium dose (1‐6 g/L) and initial dye concentration (50‐250 mg/L) on dye removal. The maximum dye removal (98.2%) was achieved under the optimal conditions of the initial dye concentration 200 mg/L, Calcium dose 6 g/L, and alginate dose 30 mg/L. The kinetics study for the coagulation process was carried out and found that it suitably fits in second‐order kinetics model. The literature on application of algal alginate for various wastewater treatment methods were compared with the present study and the results obtained revealed that the alginate from Sargassum sp. can be used as an efficient coagulant for the removal of sulphur black dye. © 2015 American Institute of Chemical Engineers Environ Prog, 34: 1427–1434, 2015

show abstract

The role of sodium alginate in improving floc size and strength and the subsequent effects on ultrafiltration membrane fouling

Cited by 13 publications

References 24 publications

Eco-friendly decolorization of cationic dyes by coagulation using natural coagulant Bentonite and biodegradable flocculant Sodium Alginate

Eco-friendly decolorization of cationic dyes by coagulation using natural coagulant Bentonite and biodegradable flocculant Sodium Alginate

Characterization of Flocs in Dewatering of Coal Plant Tailings

Removal of sulphur black dye from its aqueous solution using alginate from Sargassum sp. (Brown algae) as a coagulant

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