Synthesis of Borassus flabellifer fruit husk activated carbon filter for phenol removal from wastewater

Priya, D. Sathya; Sureshkumar, M.V.

doi:10.1007/s13762-019-02325-3

Cited by 22 publications

(5 citation statements)

References 39 publications

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“…The high porosity and surface area of activated carbon provide a high capacity for the separation of pollutants from the liquids and gases present in the polluted environment. The activated carbon is commonly produced through the pyrolysis and impregnation of various biomass feedstock [ 22 ]. During pyrolysis, the biomass is thermally decomposed in the absence of oxygen at a controlled temperature to produce biochar [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Removal of hydrogen sulfide from biogas using activated carbon synthesized from different locally available biomass wastes - a case study from Palestine

et al. 2020

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The main aim of this study was to remove hydrogen sulfide (H 2 S) from biogas by adsorption using synthesized activated carbon prepared using locally available biomass. The effect of the type of precursors, impregnation reagent and bed height was studied in continuous reactors. Three types of biomass wastes (almond shells, eucalyptus and coffee grains) were collected, grinded, sieved, pyrolyzed at 500°C and impregnated with chemical reagents such as potassium hydroxide or zinc chloride. Adsorption tests were performed using a fixed bed filter filled with the produced activated carbon. The highest biochar yield of 36% was obtained eucalyptus followed by almond shells (28.5%) and coffee grains (24%), respectively. The highest adsorption capacity and removal efficiency were obtained with eucalyptus followed by almond shells and coffee grains, respectively. For instance, eucalyptus showed an adsorption capacity of ~690 (mg hydrogen sulfide/g adsorbent) followed by almond (230 mg hydrogen sulfide/g adsorbent) and coffee grains (22 mg hydrogen sulfide/g adsorbent). As an impregnation reagent, potassium hydroxide gave the highest adsorption efficiency and capacity than zinc chloride. Furthermore, the breakthrough time with KOH (180 min) was higher than ZnCl 2 (70 min). Increasing the bed height during continuous breakthrough tests increased the adsorption capacity and hydrogen sulfide removal efficiency. The results of this study showed that the adsorption efficiency of the synthesized activated carbon and consequently the hydrogen sulfide removal efficiency could be fine-tuned by selecting an appropriate biomass precursor and proper impregnation reagent.

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Section: Introductionmentioning

confidence: 99%

Removal of hydrogen sulfide from biogas using activated carbon synthesized from different locally available biomass wastes - a case study from Palestine

et al. 2020

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“…For that reason, the adsorption capacities of some adsorbents reported in the literature for phenol adsorption were determined and listed in table 2. As compared with the reported data in table 2 [30][31][32][33][34][35][36][37][38][39][40] the maximum adsorption capacity of PNAM for phenol is much higher than that of the adsorbents described in the literature. This suggests its potential use in actually removing phenol from wastewater.…”

Section: Adsorption Effect Of Phenolmentioning

confidence: 65%

A simple method to prepare carbon-based mesoporous materials by coal gasification of fine slag and its application in phenol adsorption

Guo,

Zhang,

Dai

et al. 2023

Mater. Res. Express

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Phenol is a common organic pollutant that is difficult to degrade and widely exists in all kinds of wastewater. In this study, an economical and environmentally friendly alternative process for phenol-containing wastewater has been developed using porous nano-adsorption material (PNAM) prepared from coal gasification fine slag. The morphology, crystal structure, surface functional groups, gap structure, and specific surface area of PNAM were characterized by SEM, XRD, FT-IR, and BET. The effects of adsorbent dosage, temperature, pH, and reaction time on adsorption were further investigated. In addition, the adsorption kinetics, thermodynamics, and adsorption mechanism were explored. The results show that the surface area of PNAM is high, up to 602 m2/g, and the pore volume is 0.507 cm3/g. Adsorption processes mainly occur in mesopores between 2 and 5 nm, including physical and chemical adsorption, and here chemical adsorption plays a significant role. The adsorption rate of phenol in a 1000 mg/L simulated phenol solution by PNAM reaches 96.14%, while the unit adsorption capacity is 32.045 mg/g. As a result, it is expected that employing coal gasification fine slag to prepare adsorption materials for phenol-containing wastewater treatment may be an economically feasible and environmentally sustainable strategy.

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“…Phenolic compounds belong to the group of common environmental contaminants produced in industrial effluents, which are very toxic and classified as priority pollutants (Priya and Sureshkumar 2020;Villegas et al, 2016;Girods et al 2009;Dabrowski et al 2005). The main industrial sources of phenols/phenolic compounds emission are discharged from manufacturing of pesticides, chemicals, pharmaceuticals, paper, wood, petroleum refining, and olive oil extraction units (Girods et al 2009;Michailof et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Formation of improved activated carbons from sugarcane bagasse as environmental materials for adsorption of phenolic pollutants

Khalil

Khairy

Allam

et al. 2021

Int. J. Environ. Sci. Technol.

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Phenolic pollutants are very toxic and their removal from aquatic resources is very important. Adsorption by activated carbon, AC, is the best method for removal of phenols from solutions. However, the high cost of AC and difficulty of its regeneration after phenol adsorption puts high demand on low price AC materials. Therefore, sugarcane bagasse as a sustainable, bulky and fibrous biomass was selected for the purpose of low-price AC formation for phenols adsorption. Sugarcane bagasse derived activated carbon, BAC, was achieved via an environmental thermo-chemical activation process using ZnCl 2 followed by pyrolysis at different temperatures (400-600 °C). The formed BAC materials were characterized by elemental analysis, simultaneous TGA-DTA, ATR-FTIR, XRD, Raman spectroscopy, SEM, and nitrogen adsorption/desorption techniques. The BAC materials showed several enhanced characteristics including extra high specific surface area (up to 2046 m 2 /g), improved meso-/microporosity dual system and nanostructured graphitic-like structure composed of few graphene layers. Adsorption removal of phenol as an industrial waste pollutant was investigated from solutions of wide range of concentrations (50-1000 mg/L). The adsorption processes were characterized by (L2) class of adsorption isotherm, Langmuir isotherm model, physical-adsorption thermochemical parameters and pseudo-second-order kinetics. Adsorptions of two other substituted phenols (resorcinol and pyrogallol) were investigated. The adsorption capacity was increased with increasing of intramolecular bonding of the adsorbate in the order of phenol < resorcinol < pyrogallol. The present results emphasized the versatility of the formed BACs as environmentally sustainable adsorbent for phenolic pollutants.

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Synthesis of Borassus flabellifer fruit husk activated carbon filter for phenol removal from wastewater

Cited by 22 publications

References 39 publications

Removal of hydrogen sulfide from biogas using activated carbon synthesized from different locally available biomass wastes - a case study from Palestine

Removal of hydrogen sulfide from biogas using activated carbon synthesized from different locally available biomass wastes - a case study from Palestine

A simple method to prepare carbon-based mesoporous materials by coal gasification of fine slag and its application in phenol adsorption

Formation of improved activated carbons from sugarcane bagasse as environmental materials for adsorption of phenolic pollutants

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