Application of dodecyltrimethylammonium-modified bentonite for water purification from oil and water-soluble oil components

Coagulants play a vital role in treatment of raw water for both human and animal consumption. Aluminium sulphate is the most common and effective chemical coagulant for water treatment. However, chemical coagulants are costineffective, toxic, are not eco-friendly and may also cause severe health issues like cancers and neurologic disorders including Alzheimer’s disease. Therefore, natural and greener methods of water purification are crucial for safe and effective water treatment. Therefore, alternative natural and greener method of water purification is required. Seeds of Vicia faba, Cicer arientinum, Jatropha curcas, Vigna unguiculata, Zea mays, Vigna mungo etc. have also been used in water purification regimes. Moringa oleifera seeds contain anti-microbial properties and cationic water-soluble proteins (polyelectrolytes) which possess active coagulative properties that can remove the turbidity and heavy metals like Cu, Pb, Cr, Zn, etc from raw water, thus can treat impure water efficiently. Therefore, natural coagulants are preferred over chemical coagulants as they are feasible to use, affordable, eco-friendly and less toxic. This review provides explicit information on efficiency and use of M. oleifera seeds in water treatment and their relative comparison with that of routine chemical coagulants. Thus, further collaborative research (industry and academia) on the alternative greener techniques of water purification are still required to gain sustainability in water purification regimes in developing countries.

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Dynamic adsorption of water soluble crude oil components at air bubbles

Chemical Engineering Science ◽

10.1016/j.ces.2013.06.057 ◽

2013 ◽

Vol 101 ◽

pp. 359-365 ◽

Cited By ~ 18

Author(s):

Mona Eftekhardadkhah ◽

Pieter Reynders ◽

Gisle Øye

Keyword(s):

Crude Oil ◽

Water Soluble ◽

Dynamic Adsorption ◽

Air Bubbles ◽

Adsorption Of Water ◽

Oil Components

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Adsorption of essential oil components of Lavandula angustifolia on sodium modified bentonite from Nador (North-East Morocco)

AFRICAN JOURNAL OF BIOTECHNOLOGY ◽

10.5897/ajb2013.13450 ◽

2014 ◽

Vol 13 (33) ◽

pp. 3413-3425 ◽

Cited By ~ 6

Author(s):

EL MIZ M. ◽

SALHI, S. ◽

EL BACHIRI A. ◽

P. WATHELET J. ◽

TAHANI A.

Keyword(s):

Essential Oil ◽

Lavandula Angustifolia ◽

Modified Bentonite ◽

North East ◽

Oil Components

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Alterations in the Gut Microbiota of Zebrafish (Danio rerio) in Response to Water-Soluble Crude Oil Components and Its Mixture With a Chemical Dispersant

Frontiers in Public Health ◽

10.3389/fpubh.2020.584953 ◽

2020 ◽

Vol 8 ◽

Author(s):

Carlos Eduardo González-Penagos ◽

Jesús Alejandro Zamora-Briseño ◽

Daniel Cerqueda-García ◽

Monica Améndola-Pimenta ◽

Juan Antonio Pérez-Vega ◽

...

Keyword(s):

Gut Microbiota ◽

Crude Oil ◽

Danio Rerio ◽

Water Soluble ◽

Chemical Dispersant ◽

Oil Components ◽

Response To Water

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Adsorptive recovery of water soluble essential oil components

Journal of Chemical Technology & Biotechnology ◽

10.1002/jctb.280600115 ◽

1994 ◽

Vol 60 (1) ◽

pp. 97-102 ◽

Cited By ~ 30

Author(s):

Poonam M. Bohra ◽

Abhay S. Vaze ◽

Vishwas G. Pangarkar ◽

Ajay Taskar

Keyword(s):

Essential Oil ◽

Water Soluble ◽

Adsorptive Recovery ◽

Oil Components

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Water-soluble essential oil components of fresh flowers ofOsmanthus fragransLour

Journal of Essential Oil Research ◽

10.1080/10412905.2015.1114532 ◽

2015 ◽

Vol 28 (3) ◽

pp. 177-184 ◽

Cited By ~ 9

Author(s):

Gaoming Lei ◽

Peizhi Mao ◽

Minqing He ◽

Longhu Wang ◽

Xuesong Liu ◽

...

Keyword(s):

Essential Oil ◽

Water Soluble ◽

Oil Components

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The Phytotoxicity of Crude Oil Spills in Freshwater

Water Quality Research Journal ◽

10.2166/wqrj.1972.008 ◽

1972 ◽

Vol 7 (1) ◽

pp. 52-58 ◽

Cited By ~ 1

Author(s):

T.C. Hutchinson ◽

P. Kauss ◽

Marta Griffiths

Keyword(s):

Crude Oil ◽

Field Experiments ◽

Oil Spills ◽

Algal Growth ◽

Water Soluble ◽

Ph Effects ◽

Benzene Toluene ◽

Oil Components ◽

Toxic Factors ◽

Soluble Components

Abstract Field and laboratory experiments have been carried out to determine the toxicity to planktonic algae of crude oil, crude oil - water extracts and also selected oil components. Field experiments were performed in a half-acre pond. Localised spills of crude oil were confined within specially constructed floating cylinders with an attached collar. Three different effects of crude oil spills were noted - 1) certain species were inhibited in their growth 2) other species did not appear to be effected and 3) a number of species showed apparent stimulation following the spill. These results emphasize the great differences in response between species and suggest the actual planktonic composition of a water body of considerable importance in predicting the effects of an oil spill. In laboratory studies the toxicity of the water soluble components of crude oil only were tested. These extracts had a significant effect in increasing acidity of the water, which by itself, reduced algal growth. However, it was found that toxic factors were present, in addition to pH effects. There toxic factors or components appeared to be volatile. Tests with benzene, toluene and xylene - three water soluble crude oil components - showes them all to be toxic, with toxicity increasing in the order indicated.

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