Removal of Organic Pollutants by the Use of Iron(III) Hydroxide-Loaded Marble

Singh, Deepak Kumar; Mishra, Abna

doi:10.1080/01496399308029251

Cited by 8 publications

(5 citation statements)

References 9 publications

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“…Singh and Misra studied iron(III) hydroxide-loaded marble as an adsorbent to remove phenolic compounds (i.e., phenol, 2-chlorophenol, p-nitrophenol, pyrogallol, resorcinol, quinol, pyrocatechol) from aqueous solutions. 1 They reported adsorption capacities between 14.7 and 76.5 mol/g. Ravi et al reached an adsorption capacity of between 3.2 and 4.4 mmol/g with activated carbon for phenol and cresol isomers.…”

Section: Effects Of Initial Concentration Of Phenol and Nitrophenolsmentioning

confidence: 98%

“…[1][2][3] Loss of appetite, marasmus, headache, rapid fatigue, and severe chronic insomnia are the symptoms of chronic phenol intoxication in humans after longterm intake of excessive phenol concentrations. Phenolic compounds are present in the wastewater generated from petroleum and petrochemical, coal-conversion, pharmaceutical, plastics, rubberproofing, disinfectants, steel, and phenol-production industries.…”

Section: Introductionmentioning

confidence: 99%

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Dye‐affinity microbeads for removal of phenols and nitrophenols from aquatic systems

Deni̇zli̇

Ökan

Uçar

2002

J of Applied Polymer Sci

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Alkali Blue 6B attached poly(2-hydroxyethyl methacrylate) (PHEMA) microbeads were investigated as dye-affinity adsorbents for the removal of phenol and nitrophenols (i.e., 2-nitrophenol, 4-nitrophenol, and 2,4-dinitrophenol) from aqueous solutions. PHEMA microbeads were prepared by radical-suspension polymerization of HEMA in the presence of azobisisobutyronitrile as the initiator. These microbeads with a swelling ratio of 55% and carrying 23.6 mol Alkali Blue 6B/g polymer were then used in the removal of phenol and nitrophenols from aqueous media. The adsorption was fast in all cases (20-min equilibrium time). The maximum adsorptions of phenols onto the microbeads carrying Alkali Blue 6B were 145.2 mol/g for phenol, 87.8 mol/g for 2,4-dinitrophenol, 112.6 mol/g for 4-nitrophenol, and 104.3 mol/g for 2-nitrophenol. The affinity order was phenol Ͼ 4-nitrophenol Ͼ 2-nitrophenol Ͼ 2,4-dinitrophenol. The adsorption of nitrophenols decreased with increasing pH. Desorption of nitrophenols was achieved using a 30% (v/v) methanol solution. The microbeads carrying Alkali Blue 6B are suitable for repeated use for more than five cycles without a noticeable loss of adsorption capacity.

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Section: Effects Of Initial Concentration Of Phenol and Nitrophenolsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Dye‐affinity microbeads for removal of phenols and nitrophenols from aquatic systems

Deni̇zli̇

Ökan

Uçar

2002

J of Applied Polymer Sci

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“…Analysis of canal waters and sediments demonstrated widespread contamination particularly from refractory organic pollutants, including chlorophenols which have a wide spectrum of toxic effects. Chlorophenols are known or suspected human carcinogens (Singh and Mishra, 1993;Coggon and Acheson, 1982;Slein and Sansone, 1980). They were also found to have adverse impacts on reproduction systems, embryonic and fetal development, and neonatal survival in rats (Schwetz et al, 1974a(Schwetz et al, , b, 1978.…”

Section: Introductionmentioning

confidence: 98%

Oxidation and detoxification of pentachlorophenol in aqueous phase by ozonation

Anotai

Wuttipong

Visvanathan

2007

Journal of Environmental Management

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“…Phenolic substances (Ps) are very harmful, deleterious and are related to carcinogens [1,2]. A lot of poisonous or toxic wastewater is discharged in industrial factories (petrochemistry, coal, polymer, steel, pharmaceutical etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Singh and Misra utilized Fe(OH) 3 attached marble to eliminated organic pollutants P, 2-nitrophenol (2-NP), 4-nitrophenol (4-NP), pyrogallol, resorcinol, quinol, payrocatechol). They found an adsorption capacity from 14.7 to 76.5 mmol/g [1]. Saleh et al investigated statistical analysis of phenols adsorption on diethylenetriamine-modified-AC [19].…”

Section: Introductionmentioning

confidence: 99%

Cibacron Blue F3GA Bağlı mPHEMA ile Sulu Sistemden Fenol ve Nitrofenollerin Uzaklaştırılması

Uçar¹,

Erçolak²,

Uçar³

2020

El-Cezeri Fen Ve Mühendislik Dergisi

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Phenol and nitrophenols are toxic to other organisms in aqueous media even at very low concentrations. In this work, the removal of phenols and nitrophenols by using Cibacron Blue F3GA attached of magnetic poly(2-hydroxyethylmethacrylate) as an adsorbent from the aqueous media was investigated. The adsorption phenomenon of the phenol and nitrophenols on adsorbent at different time ranges (15, 20, 45, 60, 90 and 120 minutes) was investigated to elucidate the equilibrium times with increasing phenol and nitrophenols concentration. The parameters such as pH (2-12), adsorbent dosage, adsorption time and initial concentration were studied. The maximum adsorption equilibrium time was found to be approximately 20 minutes. The amount of adsorbed substance on adsorbent was observed to decrease in the order of 4-nitrophenol> 3-nitrophenol> and 2-nitrophenol> phenol. The adsorbent was examined by using Fourier Transform Infra-Red, Scanning Electron Microscopy-Energy Dispersive X-ray techniques and Differential Thermal Analysis-Thermal Gravimetric Analysis Techniques before and after the adsorption. The adsorption process was observed to comply with the Langmuir isotherm. It was possible to use again and again Cibacron Blue F3GA-attached mPHEMA beads without any significant decreases in their adsorption capacities.

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Removal of Organic Pollutants by the Use of Iron(III) Hydroxide-Loaded Marble

Cited by 8 publications

References 9 publications

Dye‐affinity microbeads for removal of phenols and nitrophenols from aquatic systems

Dye‐affinity microbeads for removal of phenols and nitrophenols from aquatic systems

Oxidation and detoxification of pentachlorophenol in aqueous phase by ozonation

Cibacron Blue F3GA Bağlı mPHEMA ile Sulu Sistemden Fenol ve Nitrofenollerin Uzaklaştırılması

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