Phenol Removal from Water with Potassium Permanganate Modified Granular Activated Carbon

Jin, Zhang

doi:10.4236/jep.2013.45049

Cited by 11 publications

(6 citation statements)

References 33 publications

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“…The relationship between the pH and the amounts of the adsorbed drug gave a straight line as shown in Fig 5. Only the value at pH 7 for the PAC showed deviation from the straight line. (15,30,45, and 60 min) and different pH (2, 4, 7, and 9). It was found that the elimination rate depends on the concentration, time and pH.…”

Section: Fig 2: the Uv Spectrum Of Levocetirizinementioning

confidence: 99%

“…Granular activated charcoal modified with potassium permanganate was used to enhance the adsorption capacity for phenol. It was found that modification experiment increases the efficiency of activated charcoal adsorption by 20% 30 . Modification with potassium permanganate increases the removal efficiency of activated charcoal for removal of Cr(VI) 31,32 and Cu 2+ 33 from aqueous solution.…”

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confidence: 99%

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2018

IJPSR

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The elimination capacity of pristine powder activated charcoal PAC and powder activated charcoal modified with potassium permanganate MPAC to remove levocetirizine drug was investigated. The activated charcoal was impregnated with KMnO 4 100 mg/L in order to improve the surface properties. The influence of concentration, time and pH on the adsorption of levocetirizine drug was conducted by means of UV-Vis spectroscopy. The experiments were carried out using two lines. Line 1; adsorption of the drug on pristine PAC and line 2; adsorption on MPAC. By batch experiments, the effect of levocetirizine concentrations of 25, 50, 75, and 100 mg/L, a reaction time of 15, 30, 45 and 60 min, and pH of 2, 4, 7 and 9 were investigated. The results showed that elimination capacity of both PAC and MPAC increased with increasing the drug concentration and time of contact and decreased with decreasing the pH. The elimination efficiency of MPAC found to be greater than that of PAC. INTRODUCTION: Activated charcoal is one of the main effective adsorbents which has a high surface area, large pore volume, tunable pore size, chemical stability and high hydrophobicity 1, 2, 3. It is in the shape of a fine black odorless, tasteless, microcrystalline powder 4. Due to its high adsorptive capacity is used as an adsorbent for a large variety of compounds. It is used for removal of colors from solutions 5, 6. Activated charcoal is used in the adsorption of gases and vapors such as ammonia, carbon tetrachloride, methane, nitrogen dioxide and carbon dioxide 7, 8, 9. A large number of studies concern the adsorption of a verity of organic compounds on activated charcoal have been conducted.

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Section: Fig 2: the Uv Spectrum Of Levocetirizinementioning

confidence: 99%

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confidence: 99%

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2018

IJPSR

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“…W ilościach normalnie spotykanych (ok. 0.005 mg•dm -3 ) w wodach naturalnych nie są one szkodliwe dla zdrowia, mimo to woda taka poddawana chlorowaniu podczas dezynfekcji ma odrażający smak i zapach na skutek tworzenia się związków chloropochodnych [15]. Na podstawie wielu badań opublikowano szereg prac, w których stwierdzono, że adsorpcja na węglach aktywnych i wielu innych adsorbentach w formie granulowanej, włóknistej lub pylistej jest najlepszą i najbardziej skuteczną metodą oczyszczania wody z fenoli [1,7,12,13,16,19,21].…”

Section: Wprowadzenieunclassified

Usuwanie fenolu w procesie adsorpcji

2015

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, w temperaturze 20 0 C. Dla testowanego minerału proces adsorpcji dobrze opisywały izotermy adsorpcji Froundlicha. W badaniach stwierdzono, że adsorpcja fenolu nieco lepiej zachodziła przy odczynie obojętnym i kwaśnym. Na podstawie badań zaobserwowano, że czas adsorpcji miał istotny wpływ na skuteczność usuwania fenolu, a równowaga adsorpcyjna nastąpiła po 180 minut. W warunkach przepływowych najefektywniej pracowało złoże z najdłuższym czasem retencji tr = 10 minut. Związki fenolu w początkowej fazie pracy kolumny usuwane były do wartości poniżej 0,5 mg•dm WprowadzenieFenole są związkami organicznymi, posiadającymi grupy karboksylowe połączone z atomami węgla w pierścieniu aromatycznym. Są to związki odznaczające się dużą aktywnością chemiczną i łatwym utlenianiem się, a także słabą rozpuszczalnością w wodzie, przez co stanowią duże zagrożenie dla środowiska wodnego [4]. 1 Corresponding Author: Alicja Puszkarewicz , Politechnika Rzeszowska, al. Powstańców Warszawy 12, 35-959 Rzeszów, apuszkar@prz.edu.pl, tel. 178651720

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“…It is usually done by using a variety of procedures that generate acidic, basic, metal or metal oxide impregnated surfaces [6]. Generally, a variety of oxidizing agents in liquid or gaseous phase like H2SO4, HNO3, HClO4, (NH4)2S2O8, H2O2, ClO2, KIO4, KMnO4, ozone and ammonia have been employed which reduce hydrophobicity and enhance adsorption capacity of activated carbons [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Modification of coconut shell charcoal for metal removal from aqueous solutions

et al. 2022

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Treatment of the contaminated aqueous solutions to improve their quality is indispensible for their reuse resulting in an emergent challenge to develop facile, nontoxic and less energy consuming techniques to purify water. Present study is therefore aimed at the synthesis of an adsorbent using agricultural waste i.e. coconut shell. The charcoal obtained from coconut shell was modified by acid activation and manganese doping following a simple chemical route. The products were characterized by scanning electron microscopy, energy dispersive X-ray analysis and infrared spectroscopy. Preliminary studies were carried out to compare the adsorption potential of acid modified coconut shell charcoal (AMCSC) and manganese doped coconut shell charcoal (MDCSC) for the removal of chromium (VI) and iron (III) from aqueous solutions. Various physicochemical parameters such as adsorbent dosage, initial metal ions concentration and pH were studied. MDCSC was found to be a better adsorbent for metals as compared to AMCSC and removed chromium more efficiently than iron from synthetic solutions i.e. 56.10% at optimum conditions i.e. 0.6 g/L adsorbent dosage, 10 mg/L initial metal ions concentration and pH = 3. The effect of adsorbents on color and conductivity of the aqueous solutions was also noted; slight variation in color of all the aqueous solutions with a maximum of 91.67% removal was observed.

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Phenol Removal from Water with Potassium Permanganate Modified Granular Activated Carbon

Cited by 11 publications

References 33 publications

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Usuwanie fenolu w procesie adsorpcji

Modification of coconut shell charcoal for metal removal from aqueous solutions

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