The use of semi-coke for phenol removal from aqueous solutions

Krasnova, T. A.; Gora, Natalia; Belyaeva, Oxana V.; Gorelkina, A. K.; Golubeva, N. S.; Timoshchuk, I. V.

doi:10.1007/s42823-020-00216-z

Cited by 10 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, an increase in initial concentration of phenol enhances the adsorption uptake of phenol. This is due to the increase in the driving force of the concentration gradient produced by the increase in the initial phenol concentration [11,39].…”

Section: Effect Of Initial Phenol Concentrationmentioning

confidence: 99%

Synthesis of a new magnetic adsorbent using green tea leaf extract and its application in phenol removal by RSM method

Mohammadi

Lashkari

Khosravan

et al. 2022

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

In this research, iron oxide nanoparticles were prepared by green synthesis and identi ed by scanning electron microscopy, X-ray diffraction, infrared spectroscopy, and vibrational magnetometer. The tea leaves extract was used as a reducing agent to synthesize iron oxide nanoparticles. The systematic study of the process was performed using Design Expert 10 software to determine the relationship between the four process variables, namely iron concentration, extract volume, time, and temperature effect. The square model was signi cant for the response variables. The iron oxide nanoparticles had super-magnetic properties. Then, iron oxide nanoparticles were used for magnetization of activated carbon (MAC). Finally, the MAC were used for phenol removing by response surface methodology (RSM) method. The results manifested that the generated MAC is quite effective in removing phenol. Various parameters such as pH, extraction time and adsorbent amount were optimized by the RSM method. The absorption of phenol was measured by using a spectrophotometer at a maximum wavelength of 510 nm. It was also indicated that phenol in an aqueous solution was removed up to 98%.

show abstract

Section: Effect Of Initial Phenol Concentrationmentioning

confidence: 99%

Synthesis of a new magnetic adsorbent using green tea leaf extract and its application in phenol removal by RSM method

Mohammadi

Lashkari

Khosravan

et al. 2022

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

show abstract

“…Проведенные ранее нами исследования [6] показали нецелесообразность использования данного антрацита при адсорбции гидроксибензола из водных растворов, это можно объяснить незначительным количеством микропор. Увеличить емкость адсорбента можно окислительным модифицированием, которое позволит сформировать более развитую систему микропор.…”

Section: Introductionunclassified

Extraction of organic pollutants from wastewater to improve the sanitary reliability of water bodies

Gorelkina,

Belyaeva,

Golubeva

et al. 2023

Russian journal of resources, conservation and recycling

View full text Add to dashboard Cite

. The purpose of this study was to evaluate the principal possibility of increasing the adsorption of hydroxybenzene by the carbon sorbent Purolate-standard by a combination of reactive and thermal oxidative modification. The control of the hydroxybenzene concentration from the solution was determined by spectrophotometry. The possibility of increasing the adsorption capacity by means of combined oxidative modification (reagent oxidation followed by heat treatment) of carbon material was considered. The characteristics of the extraction process were established on the basis of Langmuir and Dubinin-Radushkevich models. Analysis of the porous structure and functional groups of the surface of anthracite and its modified samples showed changes in the above parameters. The processing of experimental data in the coordinates of the Langmuir and Dubinin-Radushkevich equations showed a satisfactory correlation, which allows us to calculate the values: Gibbs energy, the maximum adsorption capacity of the monolayer, the adsorption equilibrium constant, the maximum volume of the adsorption space. The obtained values allow us to establish the adsorption mechanism, both on the feedstock and on the processed samples. It was found that the oxidation of 2 % ammonium salt of peroxodiseric acid with subsequent heating at 200°C reduced the adsorption of phenol. Treatment of the adsorbent with 5 % ammonium salt of peroxodiseric acid with heating at 250°C slightly increased the adsorption of phenol. The use of the studied oxidants to increase the adsorption capacity of anthracite did not give the expected result with respect to hydroxybenzene. Sorption on macroporous carbon materials with preliminary modification can be recommended as a promising direction in relation to organic pollutants. The study of the adsorption of hydroxybenzene on anthracite of the Purolate-standard brand was carried out under static conditions. The authors have proved that reducing the sanitary reliability of reservoirs is possible by means of reducing the level of contamination of wastewater. The mechanism of adsorption of hydroxybenzene on sorbents modified by a combined method under different regimes has been studied for the first time, which is a scientific novelty of the study.

show abstract

Iron-Loaded Porous Semi-Coke Activated Carbon as a Highly Effective and Recyclable Adsorbent for Tetracycline Removal in Wastewater

Huang,

Wang,

Lei

et al. 2024

Water Air Soil Pollut

View full text Add to dashboard Cite

The use of semi-coke for phenol removal from aqueous solutions

Cited by 10 publications

References 19 publications

Synthesis of a new magnetic adsorbent using green tea leaf extract and its application in phenol removal by RSM method

Synthesis of a new magnetic adsorbent using green tea leaf extract and its application in phenol removal by RSM method

Extraction of organic pollutants from wastewater to improve the sanitary reliability of water bodies

Iron-Loaded Porous Semi-Coke Activated Carbon as a Highly Effective and Recyclable Adsorbent for Tetracycline Removal in Wastewater

Contact Info

Product

Resources

About