Valorization of coconut waste for facile treatment of contaminated water: A comprehensive review (2010–2021)

James, Anina; Yadav, Deepika

doi:10.1016/j.eti.2021.102075

Cited by 46 publications

(11 citation statements)

References 121 publications

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“…Similarly, activated carbon produced from coconut shell has been reported to be quite efficient for the removal of zinc, lead, cadmium, copper and nickel from wastewater [15][16][17]. Previous researchers have also reported cocopeat derived from coconut shells an efficient adsorbent for heavy metal removal as well as COD, BOD, ammonia and phosphate reduction [18].…”

Section: Introductionmentioning

confidence: 94%

Modification of coconut shell charcoal for metal removal from aqueous solutions

et al. 2022

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Treatment of the contaminated aqueous solutions to improve their quality is indispensible for their reuse resulting in an emergent challenge to develop facile, nontoxic and less energy consuming techniques to purify water. Present study is therefore aimed at the synthesis of an adsorbent using agricultural waste i.e. coconut shell. The charcoal obtained from coconut shell was modified by acid activation and manganese doping following a simple chemical route. The products were characterized by scanning electron microscopy, energy dispersive X-ray analysis and infrared spectroscopy. Preliminary studies were carried out to compare the adsorption potential of acid modified coconut shell charcoal (AMCSC) and manganese doped coconut shell charcoal (MDCSC) for the removal of chromium (VI) and iron (III) from aqueous solutions. Various physicochemical parameters such as adsorbent dosage, initial metal ions concentration and pH were studied. MDCSC was found to be a better adsorbent for metals as compared to AMCSC and removed chromium more efficiently than iron from synthetic solutions i.e. 56.10% at optimum conditions i.e. 0.6 g/L adsorbent dosage, 10 mg/L initial metal ions concentration and pH = 3. The effect of adsorbents on color and conductivity of the aqueous solutions was also noted; slight variation in color of all the aqueous solutions with a maximum of 91.67% removal was observed.

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Section: Introductionmentioning

confidence: 94%

Modification of coconut shell charcoal for metal removal from aqueous solutions

et al. 2022

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“…The increasing demand and widespread use of AC have prompted continuous studies to produce AC either with better herbicide removal capacity, or cheaper production cost. Agriculture waste and natural biomass-based materials such as coconut wastes [ 56 ], orange pulp [ 57 ], chitosan [ 58 ] lignin [ 59 ] and foxtail palm fruit [ 60 ] have been studied for herbicides removal.…”

Section: Current Removal Technologies For Removal Of Herbicidesmentioning

confidence: 99%

Health effects of herbicides and its current removal strategies

Mohd Ghazi,

Nik Yusoff,

Abdul Halim

et al. 2023

Bioengineered

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The continually expanding global population has necessitated increased food supply production. Thus, agricultural intensification has been required to keep up with food supply demand, resulting in a sharp rise in pesticide use. The pesticide aids in the prevention of potential losses caused by pests, plant pathogens, and weeds, but excessive use over time has accumulated its occurrence in the environment and subsequently rendered it one of the emerging contaminants of concern. This review highlights the sources and classification of herbicides and their fate in the environment, with a special focus on the effects on human health and methods to remove herbicides. The human health impacts discussion was in relation to toxic effects, cell disruption, carcinogenic impacts, negative fertility effects, and neurological impacts. The removal treatments described herein include physicochemical, biological, and chemical treatment approaches, and advanced oxidation processes (AOPs). Also, alternative, green, and sustainable treatment options were discussed to shed insight into effective treatment technologies for herbicides. To conclude, this review serves as a stepping stone to a better environment with herbicides.

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“…Highest absorption efficiencies between 21 to 24% were reported for Cd, Ni and Pb (Dilshani et al 2022). A comprehensive review on the sorption of metal ions using coir in various forms have been published by James and Yadav (2021).…”

Section: Coir Fibers Used For Environmental Remediationmentioning

confidence: 99%

Coir from coconut processing waste as a raw material for applications beyond traditional uses

Stelte

Reddy²,

Barsberg³

et al. 2022

BioRes

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The global production of coconut, mainly for food and oil production, exceeds 62 million tonnes per annum. Large quantities of coconut husk remain unutilized after industrial processing, giving rise to environmental problems. This fails to exploit the potential presented by the extraction of coir, which could have numerous applications. Traditional products such as textiles, mats, and brushes made from coir are increasingly being joined by new, high-value, non-traditional uses. This review article summarizes new fields of application for coir as reinforcing fibers in binderless fiberboards, natural fiber composites, construction materials, solid biofuels, and an absorbent for heavy metals and toxic materials. The use of coir in these new fields will reduce waste and increase sustainability.

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Valorization of coconut waste for facile treatment of contaminated water: A comprehensive review (2010–2021)

Cited by 46 publications

References 121 publications

Modification of coconut shell charcoal for metal removal from aqueous solutions

Modification of coconut shell charcoal for metal removal from aqueous solutions

Health effects of herbicides and its current removal strategies

Coir from coconut processing waste as a raw material for applications beyond traditional uses

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