Batch sorption of vegetable oil from simulated oil-polluted water onto Populus nigra leaf waste

Akpomie, Kovo G.; Conradie, Jeanet

doi:10.1007/s13762-022-04328-z

Cited by 2 publications

(1 citation statement)

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“…The system is allowed to equilibrate for a predetermined period, during which the sorbent and sorbate interact. This interaction leads to the sorption of the sorbate onto the exterior of the sorbent through various mechanisms like adsorption, absorption, or ion exchange [30]. The use of powder adsorbent is better appropriate for the batch adsorption process.…”

Section: Methodsmentioning

confidence: 99%

Adsorption Studies of Hexavalent Chromium removal from aqueous solution using Helianthus Annuus

Birajdar,

Haware,

Reddy

et al. 2024

J. Phys.: Conf. Ser.

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Adsorption studies of hexavalent chromium (Cr (VI)) removal are particularly important due to the severe environmental and health concerns associated with this toxic form of chromium. Hexavalent chromium is a known carcinogen and can contaminate water sources through industrial discharges and other human activities. Sunflower cob, an agricultural waste material abundant in cellulose and lignocellulosic components, is utilized as a precursor for activated carbon synthesis. The activated carbon is prepared via a straightforward activation process involving chemical activation with Sodium Chloride (NaCl). Batch adsorption experiments are supported to assess the adsorption efficiency of the sunflower cob-derived activated carbon for Cr (VI) mitigation. The effects of multiple variables, including adsorbent dosage, pH of the solution, and contact time are systematically studied. The results indicated that the activated carbon evolved from sunflower cob exhibited commendable adsorption capacity for hexavalent chromium removal. Maximum adsorption is reported in an acidic environment with different Impregnation ratios (I.R) -0.25, 0.5, 0.75 with removal efficiency of 98.6%, 98.8%, and 98.8% respectively at pH 1.25.

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Section: Methodsmentioning

confidence: 99%