scholarly journals Onion (Allium Cepa) Processing Waste as a Sorption Material for Removing Pollutants from Aqueous Media

2021 ◽  
Vol 12 (3) ◽  
pp. 3173-3185
Keyword(s):  
Metal Ions ◽  
Allium Cepa ◽  
Aqueous Media ◽  
Biologically Active ◽  
Blue Dye ◽  
Processing Waste ◽  
Chemical Reagents ◽  
Sorption Material ◽  
Onion Skin ◽  
Pseudo Second Order

The paper summarizes the literature data on the use of onion (Allium cepa) processing waste as sorption materials to remove various pollutants (metal ions, dyes, antibiotics) from aqueous media. It provides brief literature data on the structure, volume of cultivation, and chemical composition of some components of onion biomass. It was found that onions contain many amino acids, vitamins, polyphenolic compounds, and other biologically active compounds that have various functional groups in their composition. This contributes to the removal of various metal ions (Ca2+, Cd2+, Cr(VI), Cu2+, Hg2+, Mg2+, Ni2+, Pb2+, Zn2+) from aqueous media with native and modified onion processing waste (onion skin). The work shows the possibility of increasing the sorption characteristics of pollutants by treating the Allium cepa biomass with various chemical reagents. It was found that the pollutant adsorption isotherms on onion skin are most often more accurately described by the Langmuir and Freundlich models, less often by other models. The kinetics of the process predominantly corresponds to the pseudo-second-order model. It was shown that the use of onion skin extracts modified with various chemical compounds is promising for removing heavy metal ions. The work also shows the possibility of using onion skin modified by plasma and microwave radiation to remove the Methylene blue dye from simulated solutions.

scholarly journals USE OF THE WALNUT SHELL (JUGLANS REGIA) AS A SORPTION MATERIAL TO REMOVE POLLUTANTS FROM NATURAL AND WASTE WATER

2020 ◽  
pp. 5-18
Author(s):  
Il'dar Gil'manovich Shaykhiyev ◽  
Svetlana Vasil'yevna Sverguzova ◽  
Karina Il'darovna Shaykhiyeva ◽  
Zhanna Anuarovna Sapronova
Keyword(s):  
Metal Ions ◽  
Juglans Regia ◽  
Aqueous Media ◽  
Sorption Isotherms ◽  
Walnut Shell ◽  
Order Model ◽  
Sorption Material ◽  
Pseudo Second Order ◽  
Dyes Adsorption ◽  
Sorption Characteristics

The literature data on the crushed walnut shells usageas a sorption material for metal ions, dyes and some organic compounds removal from aqueous media are summarized. Trees of the Juglans regia species are widespread in Russia; their shells are natural annually replenished material that is of industrial importance and can be used as sorption material for the extraction of many pollutants from aquatic environments. The paper gives a characteristic of the walnut shell, shows the indicators of the main substances that make up the shell (cellulose, lignin, hemicellululose), indicates the approximate specific surface area for BET and the content of functional groups. The results of studies of the adsorption of metal ions and and some dyes adsorption by walnut shellsare considered. The values of sorption indices for the studied pollutants are given. It is shown that it is possible to increase the sorption characteristics by chemical modification of the Juglans regia shell. It is determined that sorption isotherms in most cases are more fully described by the Langmuir model, and the process kinetics in all cases obeys the pseudo-second order model.

scholarly journals Using Cucurbits By-Products as Reagents for Disposal of Pollutants from Water Environments (a Literature Review)

2021 ◽  
Vol 11 (5) ◽  
pp. 12689-12705
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Logistic Model ◽  
Order Model ◽  
Freundlich Model ◽  
Chemical Reagents ◽  
Sorption Material ◽  
Pseudo Second Order ◽  
By Products

The paper summarizes data from literature sources using the waste of processing cucurbits (pumpkin, watermelon, melon, cucumber) as a sorption material to remove various pollutants from water environments. It states that cucurbits' shells are effective sorption materials for extracting heavy metal ions and dyes. Seeds of large cucurbits fruits (pumpkin, watermelon, melon) and seed shells also showed good sorption performance for heavy metal ions and dyes. It was found that most of the pollutants adsorption isotherms on cucurbits by-products are most accurately described by the Langmuir model, less often by the Freundlich model, and occasionally by the Tyomkin or Dubinin-Radushkevich models. It was determined that the adsorption process kinetics most often follows the pseudo-second-order model, less often – the logistic model. To increase the adsorption characteristics of cucurbits fruit components for various pollutants, they were modified with various chemical reagents.

scholarly journals USING OF BIOMASS AND WASTES OF BEANS (PHASEOLUS VULGARIS) AND PEAS (PISUM SATIVUM) PRO-CESSING AS SORPTION MATERIAL FROM POLLUTANTS REMOVING FROM WATER ENVIRONMENTS (LIT-ERATURE REVIEW)

2021 ◽  
pp. 47-64
Author(s):  
Karina Il'darovna Shaykhiyeva ◽  
Sergey Vladimirovich Fridland ◽  
Svetlana Vasil'yevna Sverguzova
Keyword(s):  
Heavy Metals ◽  
Phaseolus Vulgaris ◽  
Pisum Sativum ◽  
Sorption Isotherms ◽  
Plant Structure ◽  
Chemical Reagents ◽  
Sorption Material ◽  
Pseudo Second Order ◽  
Biomass Components ◽  
Heavy Metals Ions

Was reported literature findings of domestic and foreign articles about using of biomass components (leaves, straw, pods, seeds) and wastes of beans (Phaseolus vulgaris) and peas (Pisum sativum) pods shells processing as sorption material for pollutants (metals ions, colorants) removing from water environments. Concise literature findings about Pisum sativum and Phaseolus vulgaris plant structure, cultivation value, and chemical composition of some biomass components are described. Was revealed that composition of beans and peas pods has big amount of proteins, that can provide removing of metals ions such as (Cd(II), Co(II), Cr(III) и Cr(VI), Cu(II), Fe(III), Mo(VI), Ni(II), Pb(II), Sb(III) и Sb(V), Zn(II)) from water environments. Was showed  the possibility of sorption characteristics increase for pollutants by Phaseolus vulgaris and Pisum sativum biomass treatment with different chemical reagents. Was revealed that pollutants sorption isotherms of wastes and biomass of considered legumes are described mostly by Langmuir model than by Freundlich model. The kinetic of process mostly match to pseudo-second order model. It is shown that using of seeds and pods shells of legumes is prospectively for removing of heavy metals ions and suspended particles from water. Was proposed to use charcoal, which was gotten by peas pods carbonization for removing of heavy metals ions from water environments. Concluded, that using of legumes pods extracts is more effective for clearing water environments from heavy metals ions.

scholarly journals Alkaline treatment of pine nutshells to improve the treatment of model water from dye methylene blue

2019 ◽  
Vol 126 ◽  
pp. 00075
Author(s):  
Svetlana Sverguzova ◽  
Ildar Shaikhiev ◽  
Julia Voronina ◽  
Olga Doroganova
Keyword(s):  
Methylene Blue ◽  
Aqueous Media ◽  
Alkaline Treatment ◽  
Blue Dye ◽  
Cleaning Efficiency ◽  
Pine Nut ◽  
Sorption Material ◽  
Naoh Solution ◽  
Technological Options ◽  
Model Water

In the article presented the data on the possibility of using crushed pine nutshell to extract methylene blue dye from aqueous solutions. In Russia, in Siberia, located up to 80% of the world's reserves of Siberian cedar pine. Up to 12 million tons of pine nuts can be acquired annually, when processed into kernels or cedar oil, pine nut shell is formed as a waste, representing 51-59% of the nut weight itself. Despite proposed technological options for usage of pine nutshells, the issue of disposal of this material has not been fully resolved. One of the alternative options for the disposal of pine shells is obtaining sorption material for the extraction of pollutants from aqueous media. To improve the cleaning efficiency, the pine shell was treated with 10% NaOH solution. It was found that processing pine nutshells with 10% NaOH solution for 5 minutes at a temperature of 25 °C gives an improvement in cleaningefficiency of 96%, and an increase in the temperature of NaOH solution up to 97%. The recommended particle size of the pine nuts shell is less than 2 mm.

Utilization of Jackfruit Peel as a Low-Cost adsorbent for the Removal of Methylene Blue Dye from Synthetically Polluted Water

2020 ◽  
Vol 16 ◽  
Author(s):  
Mohsina Ahmed ◽  
Abu Nasar
Keyword(s):  
Methylene Blue ◽  
Low Cost ◽  
Aqueous Media ◽  
Polluted Water ◽  
Blue Dye ◽  
Batch Adsorption ◽  
Contaminated Water ◽  
Abrupt Increase ◽  
Agriculture Waste ◽  
Pseudo Second Order

Background: Due to an abrupt increase in the contamination of freshwater systems by dye-containing wastewater, there is an urgent need to find robust and greener adsorbents for the elimination of dyes from the contaminated water. As the dyes not only change the appearance of water but are also a cause of many serious problems, which can be some time mutagenic and carcinogenic. Methods: This research paper is based on the use of adsorbent made from the peel of jackfruit (POJ). The adsorbent derived from agriculture waste was low cost and efficient for the elimination of methylene blue (MB) dye from aqueous media. Batch adsorption experiments were accompanied by varying the pH of the solution, contact time, POJ dosage, and initial MB concentration. Results: It was seen that adsorption of MB onto Jackfruit peel adsorbent follows pseudo-second-order (PSO) kinetics and Langmuir isotherm with maximum biosorption capacity (qm) of 232.55 mg/g. The thermodynamic study revealed that the adsorption was spontaneous, endothermic, and associated with the rise in entropy. Conclusion: In view of the low-cost and promising adsorption efficiency, the present investigation submits that that POJ is novel and economically feasible adsorbent for the removal of MB from aqueous solutions.

Kinetic studies of Cd (II) and Pb (II) ions biosorption from aqueous media using untreated and chemically treated biosorbents

2014 ◽  
Vol 69 (11) ◽  
pp. 2230-2236 ◽  
Author(s):  
G. K. Bakyayita ◽  
A. C. Norrström ◽  
M. Nalubega ◽  
R. N. Kulabako
Keyword(s):  
Metal Ions ◽  
Aqueous Media ◽  
Kinetic Studies ◽  
Efficiency Enhancement ◽  
Musa Spp ◽  
Biosorption Mechanism ◽  
Chemically Treated ◽  
Pseudo Second Order ◽  
Reduction Effect ◽  
Erythrina Abyssinica

Untreated and chemically treated Albizia coriaria, Erythrina abyssinica and Musa spp. were studied in batch for uptake of Cd2+ and Pb2+ ions at pH 2.0–9.0 and agitation time of 30–390 min. Optimum biosorption conditions were pH 4 for Pb2+ ions and pH 5 for Cd2+ ions, contact time was 3.5 hours at 24 ± 1 °C for 10 mg/L biosorbent dosage and initial metal ions concentration of 20 mg/L. Chemical treatment had a 10–17% biosorption efficiency enhancement for Cd2+ ions and a 1.6–2.3% reduction effect for Pb2+ ions. The sorption capacities for Cd2+ and Pb2+ ions for treated biosorbents were 1.760–1.738 mg g−1 compared to 1.415–1.539 mg g−1 for untreated materials. The pseudo second-order model suitably fitted the Cd2+ and Pb2+ ions biosorption data with regression coefficients (R2) of 0.9784–0.9999. Fitting of the Ho model to the experimental data showed that the biosorption mechanism for both metal ions studied was mainly a chemisorption process. Therefore, treated A. coriaria, E. abyssinica and Musa spp. were potential biosorbents for remediation of Cd2+ ions and the untreated materials suitable for removing Pb2+ ions from contaminated aqueous media.

scholarly journals Comparative Analysis of the Adsorption Kinetics of the Methylene Blue Dye on Graphene Aerogel and Activated Coconut Carbon

2020 ◽  
pp. 021-028
Author(s):  
E.S. Mkrtchyan ◽  
◽  
E.A. Neskoromnaya ◽  
I.V. Burakova ◽  
O.A. Ananyeva ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Adsorption Capacity ◽  
High Efficiency ◽  
Pollutant Removal ◽  
Blue Dye ◽  
Synthetic Dyes ◽  
Graphene Aerogel ◽  
Sorption Material ◽  
New Material ◽  
Pseudo Second Order

The comparative adsorption capacity of graphene aerogel and activated coconut carbon in the process of removing the main cationic synthetic dye, methylene blue (MB), from aqueous solutions with an initial concentration of 150 mg/l was investigated. The characteristics of the new material have been determined using scanning electron microscopy, thermogravimetry, and Raman spectroscopy. The values of the adsorption capacity of graphene aerogel – 420 mg/g and activated carbon – 205 mg/g were established. The saturation time in the presence of graphene aerogel was 7 min. The experimental data were processed using kinetic models – pseudo-first and pseudo-second order, Elovich and intraparticle diffusion. According to the results obtained, graphene aerogel is a promising sorption material in the extraction of molecular organic pollutants, namely, synthetic dyes, demonstrating a high efficiency of the target pollutant removal.

scholarly journals Use of Garlic Processing By-Products to Remove Pollutants from Aqueous Media

2021 ◽  
Vol 12 (4) ◽  
pp. 4518-4528
Keyword(s):  
Activated Carbons ◽  
Aqueous Media ◽  
Order Model ◽  
Chemical Reagents ◽  
Adsorption Processes ◽  
Pseudo Second Order ◽  
Sorption Parameters ◽  
Kinetics Of ◽  
By Products ◽  
Sorption Characteristics

The paper summarized the literature data on using ground peels, outer leaves, and garlic roots (Allium sativum L.) as sorption materials to remove various metal ions, dyes, and antibiotics from aqueous media. This paper provides brief information on the amount of waste generated from processing garlic, its chemical composition, and ways of reuse. It gives the adsorption processes parameters and the values of sorption parameters for the studied pollutants. It was shown that garlic residue sorption characteristics for various pollutants could be increased by chemical modification with various chemical reagents. It was determined that the Langmuir model more accurately describes the pollutant’s adsorption isotherms in most cases, and the kinetics of the process more accurately describes the pseudo-second-order model. It was shown that garlic peels and steam are good precursors for activated carbons production.

scholarly journals REMOVAL OF POLLUTANTS FROM SEWAGE WITH GRINDED SHELLS OF APRICOT KERNELS

2021 ◽  
pp. 39-54
Author(s):  
Il'dar Gil'manovich Shaikhiev ◽  
Karina Il'darovna Shaikhieva ◽  
Svetlana Vasil'yevna Sverguzova ◽  
Yuriy Alekseyevich Vinogradenko
Keyword(s):  
Natural Waters ◽  
Activated Carbons ◽  
Raw Materials ◽  
Aqueous Media ◽  
Total Pore Volume ◽  
Chemical Reagents ◽  
Sorption Material ◽  
Apricot Kernels ◽  
Biomass Components ◽  
Number Of Publications

A review of the literature data on the use of biomass components of apricot trees (Prunusarmeniaca) as a sorption material for the extraction of various pollutants from waste and natural waters is carried out. The parameters of the sorption interaction at which the highest degree of removal of pollutants is achieved are given. It has been shown that it is possible to increase the sorption capacity of apricot biomass components by modifying it with various chemical reagents. It has been determined that the most studied sorption material is the shell of apricot kernels. It is determined that the largest number of publications is devoted to the use of the latter as raw materials for the production of activated carbons. It was revealed that the surface area and the total pore volume of activated carbons from the kernels of apricot fruits depend on the modes of carbonization and activation of raw materials. It is shown that activated carbons are effective sorbents for removing various pollutants (metal ions, dyes, oil and oil products) from aqueous media. It was found that the adsorption isotherms of pollutants are most adequately described in most cases by the Langmuir and Freundlich models, and the kinetics of the process is most often described by the pseudo-second order model.

scholarly journals WASTE FROM THE PROCESSING OF MELONS AND GOURDS AS REAGENTS FOR REMOVING POLLUTANTS FROM AQUATIC ENVIRONMENTS

2021 ◽  
pp. 129-147
Author(s):  
I.G. Shaikhiev ◽  
S.V. Sverguzova ◽  
K.I. Shaikhieva ◽  
A.V. Svyatchenko ◽  
N.A. Miroshnichenko
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Langmuir Model ◽  
Aquatic Environments ◽  
Order Model ◽  
Freundlich Model ◽  
Process Kinetics ◽  
Chemical Reagents ◽  
Pseudo Second Order

The literature data on the use of biomass and waste from the processing of melons (pumpkin, watermelon, melon, cucumber) as sorption materials for various pollutants removing from aquatic environments are summarized. It was determined that dried shells of melons and gourds are effective sorption materials for the extraction of heavy metal ions and dyes. The seeds of large fruits of melons (pumpkin, watermelon, melon), as well as their shells, also showed good sorption performance for heavy metal ions and dyes. It was revealed that most of the isotherms of the adsorption of pollutants on the processing of melons and gourds waste are most accurately described by the Langmuir model, less often by the Freundlich model, singularly by the Temkin or Dubinin-Radushkevich models. It is determined that the process kinetics in all cases follows the pseudo-second order model. To increase the adsorption characteristics of the components of melons and gourds for various pollutants, the materials were modified with various chemical reagents.

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