Adsorption technique for pollutants removal; current new trends and future challenges – A Review

El-Baz, Amro; Hendy, Ibrahim; Dohdoh, A.M.; Srour, Mohamed Ibrahim

doi:10.21608/eijest.2020.45536.1015

Cited by 13 publications

(6 citation statements)

References 98 publications

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“…The adsorption capacities of TAC, CMC, and UFC, as illustrated in Figure 7B, were also found to increase with an increase in temperature, which reflects the endothermic nature of the adsorption process. In this case, the rise in temperature not only enhances the active adsorption sites on the surface of adsorbents, but also favors both the mobility of ionic species and mass transfer process from the bulk of solution to the solid surface of materials/adsorbent [21].…”

Section: Effect Of Temperature On Adsorption Of Ty On Tac Cmc and Ufcmentioning

confidence: 99%

Thermo-Chemical Modification of Cellulose for the Adsorptive Removal of Titan Yellow from Wastewater

et al. 2023

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This research work focuses on the isolation and thermo-chemical modification of cellulose and its application as an adsorbent for the removal of organic pollutants. The used cellulose was collected from a locally available plant (Olive Europa) commonly called Zaitoon. The stem branches of Zaitoon were collected and then kept in water for 40–45 days at room temperature to extract the cellulose fibers. These cellulose fibers were then kept in the Soxhlet apparatus for washing in n-hexane for 72 h. The purified cellulose was divided into three parts: one part was subjected to thermal activation (TAC), the second was modified chemically (CMC) with Benzyl Chloride, while the last one remained un-functionalized (UFC). All the three forms of cellulose were characterized via FTIR and SEM, then utilized for the removal of Titan Yellow (TY) dye from aqueous media via adsorption process by varying the contact time, temperature, concentration of dye and type, and dose of adsorbent. The adsorption efficiencies of all adsorbents were compared under different experimental variables. Thermally activated cellulose showed the best results for the removal of TY compared with other materials. The calculated removal percentage of TY was found to be 97.69, 94.83, 94.83, and 98% under equilibrium conditions of contact time, temperature, adsorbent dose, and TY concentration. Similarly, the uptake capacities of TAC under optimal experimental conditions were found to be 19.56, 18.96, 18.52, and 18.75 mg/g. Thermodynamic studies of TAC, CMC, and UFC showed that the values of ΔG are negative, while those of ΔH and ΔS are positive in all cases and at all temperatures. This indicates that the TY elimination process is endothermic and spontaneous with an entropy-driven nature. The obtained results indicate that the as-fabricated low-cost biomaterials can effectively remove dyes from wastewater through physicochemical interactions. The removal process was influenced by the nature of the adsorbent and the operating variables.

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Section: Effect Of Temperature On Adsorption Of Ty On Tac Cmc and Ufcmentioning

confidence: 99%

Thermo-Chemical Modification of Cellulose for the Adsorptive Removal of Titan Yellow from Wastewater

et al. 2023

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“…Natural zeolites, clay minerals, oxides, and biopolymers are common natural adsorbents. Several engineered adsorbents include carbonaceous adsorbents, polymeric adsorbents, oxidic adsorbents, and zeolite molecular sieves [47,48]. Degradation, recycling, and upcycling are some of the treatment methods established for PW transformation into goods with additional value.…”

Section: Classification Of Adsorbentsmentioning

confidence: 99%

Valorization of Plastic Wastes for the Development of Adsorbent Designed for the Removal of Emerging Contaminants in Wastewater

Onu,

Ayeleru,

Modekwe

et al. 2023

Adv Environ Eng Res

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Plastic waste accrual in the environment has been identified as the topmost significant global issue related to modern civilization. Traditional waste disposal methods, such as open burning, landfilling, and incineration, have increased greenhouse gas emissions in economic and material losses. Unless immediate action is made to curtail demand, prolong product lifespans, enhance waste management, and encourage recyclability, plastic pollution will increase due to an almost threefold increase in plastic use spurred by growing populations and affluence. Plastic production primarily is from crude oil or gas despite more than a fourfold growth from ~6.8 million tonnes in 2000 to ~30 million tonnes in 2019; only ~6% of the world’s total plastics production is made from recycled plastics. The competitiveness and profitability of secondary markets may increase with the establishment of recycled content objectives and advancements in recycling technology. In this review, emerging approaches and the creation of value-added materials from waste plastics such as carbon nanotubes and other carbonaceous nanomaterials production, the environmental impacts of plastic waste, African status concerning plastic waste, the importance of modern techniques in plastic waste management, and the circular economy impact on plastic waste utilization are the high points of this study.

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“…[ 13 ] Utilizing marine wastes like algae and agricultural wastes like fava beans and bagasse pulp for adsorption can produce more effective adsorbents because these wastes can readily remove colors and produce no toxic consequences. [ 14 ] Biomass, a biological organic substance derived from living organisms, can be used as an alternative raw material to produce activated carbon because it is a plentiful and renewable resource. Additionally, because of their exceptional qualities, including biodegradability, environmental friendliness, high stability to most organic solvents, and affordability.…”

Section: Introductionmentioning

confidence: 99%

Commercial Versus Natural Activated Carbon Fabricated Sheets: Applied to Dyes Removal Application

Alrefaey,

Mohamed,

Husien

et al. 2024

Macromolecular Symposia

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Industrial dyes are considered one of the main causes of increased water pollution of water. Many businesses, such as steel and paper, are located along riverbanks because they require large amounts of water in their manufacturing processes, and their wastes, which contain acids, alkalis, dyes, and other chemicals, are dumped and poured into rivers as effluents. For example, chemical enterprises producing aluminum emit a significant quantity of fluoride into the air and effluents into water bodies. Fertilizer facilities produce a lot of ammonia, whereas steel plants produce cyanide. Many nations consider employing wastewater treatment plants using physical, biological, and chemical methods to clean the wastewater to address environmental crises. The treated water can be used for targeting the irrigation systems in its majority, as it is biologically acceptable for that specific use, industrial dyes are considered one of the leading causes of increased water pollution of water. Many businesses, such as steel and paper, are located along riverbanks because they require large amounts of water in their manufacturing processes, and their wastes, which contain acids, alkalis, dyes, and other chemicals, are dumped and poured into rivers as effluents. For example, chemical enterprises producing aluminum emit a significant quantity of fluoride into the air and effluents into water bodies. Fertilizer facilities produce much ammonia, whereas steel plants produce cyanide. Chromium salts are used in. Many nations consider employing wastewater treatment plants using physical, biological, and chemical methods to clean the wastewater to address environmental crises. The treated water can target the majority of irrigation systems, as it is biologically acceptable for that specific use, which economizes the use of freshwater sources for municipal use. This study presents a novel method for fabricating an efficient adsorbent sheet for wastewater treatment. The sheets are fabricated by combining sugarcane bagasse pulp as a scaffold with commercial, naturally activated carbon, and bimetallic‐prepared adsorbents. Sugarcane bagasse is utilized in producing activated carbon because of its high carbon contents, availability, and low cost. The prepared composite sheets are synthesized and investigated for pollutants removal of crystal violet (CV), methyl orange (MO), and Chromium (CI) dyes. Different weight ratios of activated carbon are used to form a bio‐composite mixed sheet. The formed sheets’ morphology is performed via a high scanning electron microscope (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). To determine the adsorption mechanism, the intra‐particle diffuse screening experiment is used to test the experimental data. All the prepared sheets can retain the pollutants, with the best removal efficiency of 98% for methyl orange adsorption onto the bio‐composite mixed sheet. The results of the parameter (time, concentration, and dose) sets provided valuable proof that the adsorption of methyl orange onto the bio‐composite sheet mixed with naturally activated carbon is an endothermic phenomenon involving physical adsorption.

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Adsorption technique for pollutants removal; current new trends and future challenges – A Review

Cited by 13 publications

References 98 publications

Thermo-Chemical Modification of Cellulose for the Adsorptive Removal of Titan Yellow from Wastewater

Thermo-Chemical Modification of Cellulose for the Adsorptive Removal of Titan Yellow from Wastewater

Valorization of Plastic Wastes for the Development of Adsorbent Designed for the Removal of Emerging Contaminants in Wastewater

Commercial Versus Natural Activated Carbon Fabricated Sheets: Applied to Dyes Removal Application

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