Alternative techniques for caffeine removal from wastewater: An overview of opportunities and challenges

Rigueto, César Vinicius Toniciolli; Nazari, Mateus Torres; Souza, Camila Favretto de; Cadore, Jéssica Stefanello; Brião, Vandré Barbosa; Piccin, Jeferson Steffanello

doi:10.1016/j.jwpe.2020.101231

Cited by 111 publications

(57 citation statements)

References 131 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The maximum amount of adsorbed caffeine on the AC/TiO 2 com posite was compared with a recent review [60], which aimed to com pare different techniques for caffeine removal from water. A part of this report was dedicated to the comparison of 21 adsorption articles in terms of maximum adsorbed amount (assess by Langmuir model).…”

Section: Photocatalytic Degradation Experimentsmentioning

confidence: 99%

Activated-carbon/TiO2 composites preparation: An original grafting by milling approach for solar water treatment applications

Ribeiro

Plantard

Teyssandier

et al. 2020

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

Section: Photocatalytic Degradation Experimentsmentioning

confidence: 99%

Activated-carbon/TiO2 composites preparation: An original grafting by milling approach for solar water treatment applications

Ribeiro

Plantard

Teyssandier

et al. 2020

Journal of Environmental Chemical Engineering

View full text Add to dashboard Cite

“…The adsorbent materials used in the adsorption processes must-have characteristics such as high selectivity, high surface area and high adsorption capacity, combined with long useful life and the possibility of reuse [35]. The possibility of producing adsorbents from residues from the industrial or agricultural sector, as known as biosorbents, should also be considered, expanding the application possibilities [36].…”

Section: Adsorptionmentioning

confidence: 99%

“…However, even with promising application trends as a biosorbent, further studies are still needed using tannery wastes or activated carbon obtained from them, to treat real effluents from the final stages of industrial processing, to ensure effective removal in multicomponent systems. Rigueto et al [36] point out that among the biggest challenges that need to be overcome for applications of alternative adsorbent materials, the life cycle stands out, which include considerations about the possibility of material regeneration, in addition to economic viability combined with good removal capacity, since this last parameter is often reduced at lower concentrations of certain contaminants in real effluents.…”

Section: Adsorptionmentioning

confidence: 99%

Alternative uses for tannery wastes: a review of environmental, sustainability, and science

et al. 2020

Self Cite

View full text Add to dashboard Cite

The manufacture of leather covers a wide productive chain and beyond contributes to the economic flow. The various stages of leather processing result in high volumes of solid waste. In Brazil, a daily generation of 375 tons of solid waste is estimated, and landfills are still the most used route to its destination. In this review, emphasis will be given to researches that have sought alternatives for the use of solid waste from the tannery industry. Among the main applications of solid tannery wastes, the following stand out production of adsorbent materials, biodiesel, biogas, biopolymers, applications in agriculture and other applications involving extraction/recovery of compounds of industrial/commercial interest, isolation of microorganisms and production of enzymes and applications in the animal diet. In each alternative of waste application, the technologies used, the opportunities, and the challenges faced are mentioned. We hope that this review can provide valuable information to promote the broad understanding of the possibilities that tannery solid wastes has for the development of biodegradable and agricultural products, wastewater treatment, extraction of compounds of industrial and commercial interest, among others.

show abstract

“…Caffeine is a naturally occurring alkaloid in approximately 60 plant species, including coffee, tea, and cocoa [20]. It also appears in some analgesic and bronchodilator drugs, and even in shampoos [6,17,18].…”

Section: Introductionmentioning

confidence: 99%

“…According to the information in Figure 1, the dipole moment of caffeine is high, increasing with the polarity of the medium that holds it [21]. It means that the positive charge of nitrogen in caffeine electrostatically interacts with any negatively polarized functional group [17,22]. e pKa and pH affect the chemical behavior of pollutants, and a protonated form of caffeine will be produced when pH < pKa [23,24].…”

Section: Introductionmentioning

confidence: 99%

A Review of Caffeine Adsorption Studies onto Various Types of Adsorbents

Quintero-Jaramillo

Carrero-Mantilla

Sanabria‐González

2021

The Scientific World Journal

View full text Add to dashboard Cite

A systematic literature review of publications from 2000 to 2020 was carried out to identify research trends on adsorbent materials for the removal of caffeine from aqueous solutions. Publications were retrieved from three databases (Scopus, Web of Science, and Google Scholar). Words “adsorption AND caffeine” were examined into titles, abstracts, and keywords. A brief bibliometric analysis was performed with emphasis on the type of publication and of most cited articles. Materials for the removal of caffeine were classified according to the type of material into three main groups: organic, inorganic, and composites, each of them subdivided into different subgroups consistent with their origin or production. Tables resume for each subgroup of adsorbents the key information: specific surface area, dose, pH, maximum adsorption capacity, and isotherm models for the removal of caffeine. The highest adsorption capacities were achieved by organic adsorbents, specifically those with granular activated carbon (1961.3 mg/g) and grape stalk activated carbon (916.7 mg/g). Phenyl-phosphate-based porous organic polymer (301 mg/g), natural sandy loam sediment (221.2 mg/g), composites of MCM-48 encapsulated graphene oxide (153.8 mg/g), and organically modified clay (143.7 mg/g) showed adsorption capacities lower than those of activated carbons. In some activated carbons, a relation between the specific surface area (SSA) and the maximum adsorption capacity (Qmax) was found.

show abstract

Alternative techniques for caffeine removal from wastewater: An overview of opportunities and challenges

Cited by 111 publications

References 131 publications

Activated-carbon/TiO2 composites preparation: An original grafting by milling approach for solar water treatment applications

Activated-carbon/TiO2 composites preparation: An original grafting by milling approach for solar water treatment applications

Alternative uses for tannery wastes: a review of environmental, sustainability, and science

A Review of Caffeine Adsorption Studies onto Various Types of Adsorbents

Contact Info

Product

Resources

About