Removal of toxic heavy metals, phenolic compounds and textile dyes from industrial waste water using phosphonium based ionic liquids

Thasneema, K K; Dipin, T.; Thayyil, Mohamed Shahin; Sahu, Pramod K.; Messali, Mouslim; Rosalin, Tancia; Elyas, K. K.; Saharuba, P.M.; Anjitha, T.; Hadda, Taïbi Ben

doi:10.1016/j.molliq.2020.114645

Cited by 57 publications

(27 citation statements)

References 25 publications

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“…Adsorption Science & Technology (disperse dyes), cationic (basic dyes), and anionic (reactive, acid, and direct dyes), which can also consider their chemical structures like azo, anthraquinone, indigo, triphenylmethyl, and phthalocyanine derivative [165,166]. These organic compounds are toxic and persistent pollutants with low degradability that can cause serious health effects with mutagenic and carcinogenic impacts on organisms [167][168][169]. Textile and dyeing industrial sectors are considered as the main contributors to this environmental pollution due to a significant release of dyes and related compounds into the water sources.…”

Section: 4mentioning

confidence: 99%

Engineered Magnetic Carbon-Based Adsorbents for the Removal of Water Priority Pollutants: An Overview

Reynel-Ávila

Camacho-Aguilar

Bonilla-Petriciolet

et al. 2021

Adsorption Science & Technology

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This review covers the preparation, characterization, and application of magnetic adsorbents obtained from carbon-based sources and their application in the adsorption of both inorganic and organic pollutants from water. Different preparation routes to obtain magnetic adsorbents from activated carbon, biochar, hydrochar, graphene, carbon dots, carbon nanotubes, and carbon nanocages, including the magnetic phase incorporated on the solid surface, are described and discussed. The performance of these adsorbents is analyzed for the removal of fluoride, arsenic, heavy metals, dyes, pesticides, pharmaceuticals, and other emerging and relevant water pollutants. Properties of these adsorbents and the corresponding adsorption mechanisms have been included in this review. Overall, this type of magnetic adsorbents offers an alternative for facing the operational problems associated to adsorption process in water treatment. However, some gaps have been identified in the proper physicochemical characterization of these adsorbents, the development of green and low-cost preparation methods for their industrial production and commercialization, the regeneration and final disposal of spent adsorbents, and their application in the multicomponent adsorption of water pollutants.

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Section: 4mentioning

confidence: 99%

Engineered Magnetic Carbon-Based Adsorbents for the Removal of Water Priority Pollutants: An Overview

Reynel-Ávila

Camacho-Aguilar

Bonilla-Petriciolet

et al. 2021

Adsorption Science & Technology

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“…The range of conventional methods for removing heavy metals from aqueous solutions may include techniques such as [18][19][20][21][22][23]: chemical precipitation, oxidation or chemical reduction, ion exchange, filtering, membrane techniques, etc. The literature considers that processes based on these techniques are usually expensive and inefficient, especially for solutions containing ions with concentrations between 1 and 100 mg/L [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Modeling and Optimization of Heavy Metals Biosorption by Low-Cost Sorbents Using Response Surface Methodology

Ferţu

Bulgariu

2022

Processes

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This paper exploits, through modeling and optimization, the experimental laboratory data on the biosorption of heavy metal ions Pb(II), Cd(II), and Zn(II) from aqueous media using soybean and soybean waste biomasses. The biosorption modeling was performed using the Response Surface Methodology, followed by optimization based on numerical methods. The aim of the modeling was to establish the most probable mathematical relationship between the dependent variables (the biosorption efficiency of the biosorbents when adsorbing metal ions, R(%), and the biosorption capacity of sorbents, q(mg/g)) and the process parameters (pH; sorbent dose, DS (g/L); initial metal ion concentration in solution, c0 (mg/L); contact time, tc (min); temperature, T (°C)), validated by methodologies specific to the multiple regression analysis. Afterward, sets of solutions were obtained through optimization that correlate various values of the process parameters to maximize the objective function. These solutions also confirmed the performance of soybean waste biomass in the removal of heavy metal ions from polluted aqueous effluents. The results were validated experimentally.

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“…The rapid development of industrial, mining and metallurgical industry has resulted in large amount of metals-containing wastewater being discharged into the natural aquatic environment, especially for Cu 2+ , Cd 2+ and Pb 2+ , which are common pollutants in the environment [1,2]. These metals are persistent, toxic and biologically accumulating [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Removal of Cu2+, Cd2+ and Pb2+ by Modified Wheat Straw Biochar from Aqueous Solution: Preparation, Characterization and Adsorption Mechanism

Wang

Zheng

Jiao

et al. 2022

Toxics

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As an eco-friendly and efficient adsorbent for removal of potential toxic metals from aqueous solution, biochar has received widespread attention. In the present study, wheat straw biochar (BC) and corresponding modified biochar (HNC) were used to remove Cu2+, Cd2+ and Pb2+ from an aqueous solution. The influence of the environment factors on metals adsorption and adsorption mechanism were discussed in detail. The results showed that the HNC had porous structures and owned ample functional groups (−OH, −COOH and C−N groups) compared with the BC. In the single system, the adsorption capacities of HNC for Cu2+, Cd2+ and Pb2+ at a pH of 5.5 were 18.36, 22.83 and 49.38 mg/g, which were 76.89%, 164.36% and 22.75% higher than that of the BC, respectively. In addition, the adsorption process of Cu2+ and Cd2+ on BC and HNC fitted to the Langmuir isotherm model and pseudo-second-order kinetics, but the adsorption of Pb2+ on BC and HNC fitted to the Langmuir isotherm model and pseudo-first-order kinetics. Adsorption isotherms indicated that the adsorption of Cu2+, Cd2+ and Pb2+ by BC and HNC was a spontaneous endothermic process. The competitive adsorption of mixed metal ions (Cu2+, Cd2+ and Pb2+) revealed that HNC was more preferential to adsorb Cu2+ compared with Cd2+ and Pb2+. Furthermore, Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy analyses revealed that the main adsorption mechanisms were surface complexation and precipitation, and the adsorbed Cu2+, Cd2+ and Pb2+ on HNC mainly exist as CuO, Cd(OH)2, Pb3O4 and Pb(OH)2.

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Removal of toxic heavy metals, phenolic compounds and textile dyes from industrial waste water using phosphonium based ionic liquids

Cited by 57 publications

References 25 publications

Engineered Magnetic Carbon-Based Adsorbents for the Removal of Water Priority Pollutants: An Overview

Engineered Magnetic Carbon-Based Adsorbents for the Removal of Water Priority Pollutants: An Overview

Modeling and Optimization of Heavy Metals Biosorption by Low-Cost Sorbents Using Response Surface Methodology

Simultaneous Removal of Cu2+, Cd2+ and Pb2+ by Modified Wheat Straw Biochar from Aqueous Solution: Preparation, Characterization and Adsorption Mechanism

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