Removal of Metals from Aqueous Solutions Using Sea Buckthorn Waste from Dietary Supplement Technology

Kim, Lidia; Catrina, Gina Alina; Cernica, Georgiana; Staicu, Vasile; Popescu, Mariana; Covaliu, Cristina Ileana

doi:10.3390/su13031441

Cited by 6 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In another work [12] an adsorbent composed of sea buckthorn meal waste (from the food supplement industry) which retains heavy metals from aqueous solutions is presented.…”

Section: Issn: 2833-356xmentioning

confidence: 99%

Separation and Purification of Plant Extracts by Removal of Chlorophyll, Xanthophylls and Pigments using Mineral Adsorbents in Liquid Chromatography (CLS)

Staicu

2023

Current Trends in Eng Sc

View full text Add to dashboard Cite

This study focused on the purification of plant extracts, with the help of adsorption chromatography (liquid chromatography with a solid stationary phase - CLS) so that the purified plant extracts lead to obtaining bioactive compounds in a pure state or with advanced purity. The studied extracts can be divide into categories as follows: a) The purification of extracts from perilla frutescens b) The purification of extracts from rosmarinus officinalis c) The purification of extracts from artemisia annua (peliniță) For the perilla frutescens extract, dried leaves, the purification aimed at obtaining pure crystals of ursolic acid and the physico-chemical analysis of the plant extracts before and after extraction, to determine the loss of the important compounds of the plant, due to their retention in the adsorbent layer. For the rosemary and wormwood (artemisia annua) extracts, dry leaves, the purification aimed at obtaining pure crystals of bioactive compounds (ursolic acid, artemisinin) and their gravimetric dosing to determine the bioactive compound content of the original plant. Mineral adsorbents and combinations of mineral adsorbents in the form of adsorbent mixtures have been used. Glass liquid columns of various sizes were used. For each experiment, the working times (saturation-activation time, elution and column washing time) were noted. All experiments were performed with the adsorption chromatography procedure, with gravity flow column (in adsorption chromatography with gravity flow column), without using Sephadex LH-20 macroporous resins as a stationary phase.

show abstract

“…In another work [12] an adsorbent composed of sea buckthorn meal waste (from the food supplement industry) which retains heavy metals from aqueous solutions is presented.…”

Section: Issn: 2833-356xmentioning

confidence: 99%

Separation and Purification of Plant Extracts by Removal of Chlorophyll, Xanthophylls and Pigments using Mineral Adsorbents in Liquid Chromatography (CLS)

Staicu

2023

Current Trends in Eng Sc

View full text Add to dashboard Cite

show abstract

“…lignin, cellulose, hemicellulose, pectin, proteins, flavonoids, terpenoids and other secondary metabolites having polyhydroxy, carboxy, amine, and aldehydic, functionalities with high affinity for metal ions 15 . Agricultural wastes, including rice husk 19 , wheat bran 20 , palm kernel shell 21 , apricot seed 16 , groundnut hull 22 , leaves 1 , peels of fruits and vegetables 23 , vegetable waste 24 , and bagasse 25 as a dried powder or ash have been reported as effective adsorbents for persistent organic compounds and heavy metal ions due to their greater adsorption efficacy as well as the easiness of separation and regeneration 26 , 27 .…”

Section: Introductionmentioning

confidence: 99%

Rapid adsorptive removal of chromium from wastewater using walnut-derived biosorbents

Garg

Alimuddin

et al. 2023

Sci Rep

View full text Add to dashboard Cite

Contamination of water resources by industrial effluents containing heavy metal ions and management of solid waste from agricultural and food industries is a serious issue. This study presents the valorization of waste walnut shells as an effective and environment-friendly biosorbent for sequestrating Cr(VI) from aqueous media. The native walnut shell powder (NWP) was chemically modified with alkali (AWP) and citric acid (CWP) to obtain modified biosorbents with abundant availability of pores as active centers, as confirmed by BET analysis. During batch adsorption studies, the process parameters for Cr(VI) adsorption were optimized at pH 2.0. The adsorption data were fitted to isotherm and kinetic models to compute various adsorption parameters. The adsorption pattern of Cr(VI) was well explained by the Langmuir model suggesting the adsorbate monolayer formation on the surface of the biosorbents. The maximum adsorption capacity, qm, for Cr(VI) was achieved for CWP (75.26 mg/g), followed by AWP (69.56 mg/g) and NWP (64.82 mg/g). Treatment with sodium hydroxide and citric acid improved the adsorption efficiency of the biosorbent by 4.5 and 8.2%, respectively. The endothermic and spontaneous adsorption was observed to trail the pseudo-second-order kinetics under optimized process parameters. Thus, the chemically modified walnut shell powder can be an eco-friendly adsorbent for Cr(VI) from aqueous solutions.

show abstract

Cellulose-Based Aerogels for Sustainable Dye Removal: Advances and Prospects

Ashori,

Chiani,

Shokrollahzadeh

et al. 2024

J Polym Environ

View full text Add to dashboard Cite

Removal of Metals from Aqueous Solutions Using Sea Buckthorn Waste from Dietary Supplement Technology

Cited by 6 publications

References 14 publications

Separation and Purification of Plant Extracts by Removal of Chlorophyll, Xanthophylls and Pigments using Mineral Adsorbents in Liquid Chromatography (CLS)

Separation and Purification of Plant Extracts by Removal of Chlorophyll, Xanthophylls and Pigments using Mineral Adsorbents in Liquid Chromatography (CLS)

Rapid adsorptive removal of chromium from wastewater using walnut-derived biosorbents

Cellulose-Based Aerogels for Sustainable Dye Removal: Advances and Prospects

Contact Info

Product

Resources

About