Adsorption and coagulation in wastewater treatment – Review

Sukmana, Hadid; Bellahsen, Naoufal; Pantoja, Fernanda; Hodúr, Cecília

doi:10.1556/446.2021.00029

Cited by 36 publications

(26 citation statements)

References 80 publications

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“…Therefore, new types of adsorbents have been developed with better sustainability profiles than conventional adsorbents such as activated carbons or aluminas, resins, zeolites, or molecular sieves. Sukmana et al 100 introduced nonconventional adsorbents from renewable resources such as agriculture and other sources of biological byproducts. These new adsorbents are reported to have low cost since they can be directly used with minimal or without treatments, 101 reducing the environmental impacts associated with the production while gaining credits for waste recycling.…”

Section: Process Design and Sustainability Of Wastewater Treatment Te...mentioning

confidence: 99%

Process Technology and Sustainability Assessment of Wastewater Treatment

Tran

Escribà‐Gelonch

Sarafraz

et al. 2023

Ind. Eng. Chem. Res.

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Removal of heavy metals in wastewater treatment is crucial to protect the environment, wildlife, and human health. Various techniques have been developed focusing on removal of heavy metal ions, pharmaceuticals, and other contaminants from different wastewater sources. The main methods include adsorption, filtration, ion exchange, electrochemical, reverse osmosis, precipitation, flotation/coagulation/ flocculation, and photocatalytic-based treatments. This paper comprehensively assesses the sustainability of those common technologies used for wastewater process treatment. The sustainability profile depends mostly on the exact approach followed for each technology, including its energy consumption, type of radiation (where appropriate), auxiliary materials used (e.g., catalysts, adsorbents), and further specific experimental process settings. Thus, while sustainability inevitably provides a multifaceted answer, the review finally aims for sustainability benchmarking of all technologies, by compressing the manifold outcomes toward a compact information set, such as a table and radar plot.

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Section: Process Design and Sustainability Of Wastewater Treatment Te...mentioning

confidence: 99%

Process Technology and Sustainability Assessment of Wastewater Treatment

Tran

Escribà‐Gelonch

Sarafraz

et al. 2023

Ind. Eng. Chem. Res.

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“…The Langmuir model is used to calculate the maximum adsorption capacity of adsorbent materials [11].…”

Section: Influence Of the Initial Concentration Of Mo And Modeling Of...mentioning

confidence: 99%

“…Adsorption using activated carbon remains one of the most widely used techniques. Adsorption processes have been widely used in water and wastewater related industries [11][12][13][14]. Adsorption on activated carbons is usually used in dye removal due to its greater ability to remove chemical components [4].…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Methyl Orange on Corncob Activated Carbon: Kinetic, Equilibrium, and Thermodynamic Studies

Abollé

Urbain²,

Ollo³

et al. 2022

EJCS

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H3PO4 activated corncob carbon was used for removal of methyl orange. Characterization of the prepared carbon showed that it has many pores with a specific surface area equal to 714 m2 g-1. During this study, the concentration of methyl orange was monitored using a UV-visible spectrophotometer. The kinetic study of the adsorption of methyl orange on activated carbon was performed and the adsorption rate was found to be consistent with pseudo-second order kinetics with 240 min as the equilibrium time. The equilibrium adsorption revealed that the experimental data better fit the Langmuir isotherm model for methyl orange removal. It is noted that for optimal removal of 10 mg L-1 methyl orange in a 25 mL volume, 0.3 g of activated carbon and a pH equal to 2.04 are required. The maximum monolayer adsorption capacity for methyl orange removal was found to be 107.527 mg g-1. Analysis of thermodynamic parameters showed that the adsorption process of methyl orange on activated carbon is physisorption, spontaneous and endothermic.

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“…Undoubtedly, the disadvantage of pure alginate salts is their poorly developed structure [ 15 ], which translates into a low sorption capacity in relation to organic pollutants. It should be noted that the use of activated carbon in water treatment processes has been widely spread for many years [ 1 , 14 , 16 , 17 , 18 , 19 ]. Concurrently, the use of this material, especially when it is in a dusty form, has some technical drawbacks, for example, difficulty in recovery.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Non-Steroidal Anti-Inflammatory Drugs on Alginate-Carbon Composites—Equilibrium and Kinetics

Wasilewska

Deryło–Marczewska

2022

Materials

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In this work, alginate–carbon composites with different active carbon content were synthesized and studied by various techniques. The obtained materials can be used as adsorbents in the processes of removing organic pollutants from water. In this study, the effect of the immobilization of activated carbon in calcium alginate was investigated. Textural properties were determined by measuring low-temperature nitrogen adsorption/desorption isotherms. The largest specific surface area was recorded for ALG_C8 and amounted to 995 m2/g. The morphology of alginate materials was determined on the basis of scanning electron microscopy. The adsorption properties were estimated based on the measurements of equilibrium and adsorption kinetics. The highest sorption capacities were 0.381 and 0.873 mmol/g for ibuprofen and diclofenac, respectively. The generalized Langmuir isotherm was used to analyze the equilibrium data. A number of equations and kinetic models were used to describe the adsorption rate data, including first (FOE) and second (SOE) order kinetic equations, 1,2-mixed-order kinetic equation (MOE), fractal-like MOE equation (f-MOE), multi-exponential equation (m-exp), in addition to diffusion models: intraparticle diffusion model (IDM) and pore diffusion model (PDM). Thermal stability was determined on the basis of data from thermal analysis in an atmosphere of synthetic air.

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Adsorption and coagulation in wastewater treatment – Review

Cited by 36 publications

References 80 publications

Process Technology and Sustainability Assessment of Wastewater Treatment

Process Technology and Sustainability Assessment of Wastewater Treatment

Adsorption of Methyl Orange on Corncob Activated Carbon: Kinetic, Equilibrium, and Thermodynamic Studies

Adsorption of Non-Steroidal Anti-Inflammatory Drugs on Alginate-Carbon Composites—Equilibrium and Kinetics

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