An insight into the potential of dolomite powder as a sorbent in the elimination of heavy metals: A review

Khoshraftar, Zohreh; Masoumi, Hadiseh; Ghaemi, Ahad

doi:10.1016/j.cscee.2022.100276

Cited by 13 publications

(7 citation statements)

References 126 publications

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“…Due to the desired performances and the low price of agricultural waste such as banana peel, orange peel, rice husk (RH), tea pulp, walnut shell 19 , Montmorillonite clay 20 , chicken beak 21 , zeolite 22 , and etc., these materials have received much attention. Also, various reagents can be grafted to the structure of the adsorbents for improving their performance such as polymers, metal hydroxide, acids, iron, and other chemical materials like xanthate 23 , 24 . Some valuable works that demonstrate the superiority of the modified adsorbent over the raw ones are indicated as follows.…”

Section: Introductionmentioning

confidence: 99%

Improving adsorption performance of l-ascorbic acid from aqueous solution using magnetic rice husk as an adsorbent: experimental and RSM modeling

Aslani

Masoumi

Ghanadzadeh

et al. 2023

Sci Rep

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In this research, rice husk (RH) was utilized to prepare a magnetic adsorbent for adsorption of ascorbic acid (AA). The magnetic agent is iron(III) chloride (FeCl3). The impact of acid concentration in the range of 400–800 ppm, adsorbent dosage in the range of 0.5–1 g, and contact time in the range of 10–130 min were studied. The Langmuir model had the highest R2 of 0.9982, 0.9996, and 0.9985 at the temperature of 15, 25, and 35 °C, respectively, and the qmax values in these temperatures have been calculated at 19.157, 31.34, and 38.75 mg/g, respectively. The pseudo-second-order kinetic model had the best agreement with the experimental results. In this kinetic model, the values of q have been measured at 36.496, 45.248, and 49.019 mg/g at the acid concentration of 418, 600, and 718 ppm, respectively. The values of ΔHo and ΔSo were measured 31.972 kJ/mol and 120.253 kJ/mol K, respectively, which proves the endothermic and irregularity nature of the adsorption of AA. Besides, the optimum conditions of the design-expert software have been obtained 486.929 ppm of acid concentration, 0.875 g of the adsorbent dosage, and 105.397 min of the contact time, and the adsorption efficiency in these conditions was determined at 92.94%. The surface area of the RH and modified RH was determined of 98.17 and 120.23 m2/g, respectively, which confirms the high surface area of these two adsorbents.

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Section: Introductionmentioning

confidence: 99%

Improving adsorption performance of l-ascorbic acid from aqueous solution using magnetic rice husk as an adsorbent: experimental and RSM modeling

Aslani

Masoumi

Ghanadzadeh

et al. 2023

Sci Rep

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“…The SEM analysis of the dolomites after the adsorption process confirmed the better adsorption efficiency using D-II dolomite. The literature data indicate that dolomite, despite having a relatively small specific surface area (SBET = 1.52 m 2 /g), shows excellent adsorption properties [ 20 , 39 ].…”

Section: Resultsmentioning

confidence: 99%

“…The use of highly efficient, environmentally friendly, and inexpensive materials for the adsorptive removal of pollutants from water has always been seen as a new task. In order to remove dyes and heavy metals from aqueous solutions, coal dust [ 20 , 21 ], tea waste [ 22 , 23 ], dolomite [ 17 , 22 ], activated carbon [ 24 , 25 ], silica [ 26 ], clays [ 27 ], chitosan [ 28 ], and zeolites and their derivatives [ 29 , 30 , 31 ] were tested. Various types of agricultural waste, which can also be transformed into catalysts with adsorption properties, were also tested [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Adsorption/Desorption Process on Dolomite Adsorbent in the Copper(II) Removal from Aqueous Solutions

et al. 2023

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The removal of hazardous heavy metals that have been released into the environment due to industrial activities has become an important issue in recent years. The presented study concerned the removal of copper(II) ions from aqueous solutions using dolomites. Dolomite is a very attractive adsorbent due to its wide availability, low cost, good adsorption, and environmental compatibility. The paper describes the properties of D-I and D-II dolomites from two different open-cast mines in Poland. The properties of natural adsorbents were determined based on point of zero charges (PZC), elemental analysis of the adsorbent composition, FT-IR, XRD, and SEM spectra analysis. Depending on the initial concentration of the solution used, the adsorption efficiency of copper(II) ions was 58–80% for D-I and 80–97% for D-II. The adsorption mechanism in the case of D-II dolomite was mainly based on ion exchange, while chemisorption dominated the D-I dolomite surface. Considering the possibility of the regeneration and reuse of the adsorbent, dolomite D-II is a better material (the desorption efficiency of copper(II) ions was 58–80%). The adsorption behavior of dolomites has been described using six adsorption isotherms. The best fit was obtained for the Redlich–Peterson, Jovanović, and Langmuir isotherms, indicating that monolayer adsorption occurred. The maximum adsorption capacity for copper(II) was 378 mg/g of D-I and 308 mg/g of D-II.

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“…Images of pure chitosan showed a heterogeneous surface with numerous grooves and indentations (Figure 2b,c), characteristic of crustacean carapaces [50]. Microscopic images of perlite show a porous, spongy (Figure 2e) microstructure, formed by the passage of this material from liquid magma (during volcanic eruptions) into seawater [51]. In water, the perlite solidifies instantly, which causes the vapour bubbles within it to close, hence the holes and cracks seen in the images (Figure 2f).…”

Section: Morphological and Microstructural Characteristicsmentioning

confidence: 99%

Chitosan/Perlite System as a Microbial Carrier in Anaerobic Digestion of Food Waste: Characteristics and Impact of the Additive Materials

Pilarska,

Marzec-Grządziel,

Makowska

et al. 2024

Preprint

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The article aims to present the results of research on anaerobic digestion (AD) of waste wafers (WF - control) and co-substrate system - waste wafers and cheese (WFC - control), combined with digested sewage sludge. The aim of the study was to evaluate the physicochemical parameters of the chitosan/perlite (Ch/P; 3:1) carrier material and to verify its effect on the directions of change of the bacterial microbiome, removal kinetics of organic matter and AD process efficiency. The experiment was conducted in a laboratory, in a periodical mode of operation of bioreactors, under mesophilic conditions. The results of analyses of morphological-dispersive, spectroscopic, adsorption, thermal and microbiological properties confirmed that the tested carrier material can be an excellent option to implement in biotechnological processes, especially in anaerobic digestion. The microstructural properties of the carrier were influenced by both components: perlite determined the development of the specific surface area, while chitosan shaped the porosity of the system. The thermal properties were determined by the less heat-resistant component, present in a threefold higher weight proportion, i.e. chitosan. The evaluation of quantitative and qualitative changes in the genetic diversity of bacterial communities, carried out using Next Generation Sequencing (NGS), showed that the material has a modifying effect on the bacterial microbiome. Amount of bacteria from phyla Actinobacteria, Bacteroidetes, Campilobacterota, Chloroflexi, Euryarchaeota, Planctomycetes, and Proteobacteria decreased while Firmicutes, Synergistetes, and Thermotogae increased during the course of the experiment. The shapes of the FT-IR spectra indicated a dependence of the degradation rate on both the presence of the carrier and the cosubstrate system. Monitoring of the course of AD was carried out by measuring key parameters for the stability of the process: pH, VFA and VFA/TA ratio (volatile fatty acids/total alkalinity). As a result, an increase in the volume of biogas/methane produced, under the influence of the carrier, was recorded for WF-control by 12.05% and for WFC-control by 19.16%. The volume of methane for the WF-control increased from 351.72 m3 Mg-1 VS to 411.14 m3 Mg-1 VS, while for the cosubstrate sample it increased from 476.84 m3 Mg-1 VS to 518.08 m3 Mg-1 VS, confirming the validity of combining the respective cosubstrate with microbial carrier in anaerobic bioreactor.

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An insight into the potential of dolomite powder as a sorbent in the elimination of heavy metals: A review

Cited by 13 publications

References 126 publications

Improving adsorption performance of l-ascorbic acid from aqueous solution using magnetic rice husk as an adsorbent: experimental and RSM modeling

Improving adsorption performance of l-ascorbic acid from aqueous solution using magnetic rice husk as an adsorbent: experimental and RSM modeling

Characteristics of Adsorption/Desorption Process on Dolomite Adsorbent in the Copper(II) Removal from Aqueous Solutions

Chitosan/Perlite System as a Microbial Carrier in Anaerobic Digestion of Food Waste: Characteristics and Impact of the Additive Materials

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