Modification of pumice with HCl and NaOH enhancing its fluoride adsorption capacity: Kinetic and isotherm studies

Yousefi, Mahmood; Arami, Seyed Mohammad; Takallo, Hamed; Hosseini, Mona; Radfard, Majid; Soleimani, Hamed; Mohammadi, Ali Akbar

doi:10.1080/10807039.2018.1469968

Cited by 74 publications

(41 citation statements)

References 34 publications

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“…The ANOVA obtained is shown in Table 4 and P -value < 0.05 indicate that the model is significant [1] , [2] . Also, three variables (initial MNZ concentration, Fe 3 O 4 dose and pH) were significant terms with p -value < 0.05 [3] . The result of FESEM image of Fe 3 O 4 was presented in Fig.…”

Section: Datamentioning

confidence: 91%

Removal of the metronidazole from aqueous solution by heterogeneous electro-Fenton process using nano-Fe3O4

Rahmatinia

2018

Data in Brief

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Among drugs, antibiotics have a significant place due to their wide consumption in veterinary and human medicine to prevent and treat microbial infections. In spite of low amounts of antibiotics in the aquatic environments, the repeated incidence of antibiotics has been caused bacterial persistence and adverse effects on health human and aquatic life. Current article evaluated the removal of metronidazole (MNZ) via heterogeneous electro-Fenton (EF) process by nano-Fe3O4. The response surface methodology (RSM) on Box-Behnken design was applied for modeling and optimization experimental factors such as pH, applied current, and catalyst load. The efficiency of the EF process was maximum (92.26%) under the optimal condition for MNZ removal i.e. 70 mg/L of initial MNZ concentration, pH of 3, 200 mA applied current, 30 min time and 3.2 kWh/m3 of energy consumption.

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Section: Datamentioning

confidence: 91%

Removal of the metronidazole from aqueous solution by heterogeneous electro-Fenton process using nano-Fe3O4

Rahmatinia

2018

Data in Brief

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“…The AMX concentration of all samples was measured by A High Liquid Performance Chromatography (HPLC, CE4200-cecil, England). The equation below was applied for obtaining the removal efficiency (ƞ %) as follows [7] , [8] , [9] :

100

Where, C 0 is the initial concentration and C t is residual concentration of AMX.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Data on modeling of UV/Na2S2O8/FeS2 process in amoxicillin removal using Box-Behnken methodology

2018

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Among the pharmaceutical compounds, antibiotics have been paid specific consideration, due to their acute and chronic toxic effects on organisms. Amoxicillin (AMX) is used widely for treatment of bacterial infections. About 80% of amoxicillin excreted unchanged and enters the aquatic environment through different routes including disposal of municipal wastewaters, hospital wastewaters and farm wastewaters. In this study degradation of amoxicillin by UV/Na2S2O8/FeS2 process was evaluated. According to the results, the R-squared and adjusted R-squared were 0.9877 and 0.9828, respectively. The AMX removal efficiency was 93% at optimum conditions. Thus, UV/Na2S2O8/FeS2 process is a useful process for amoxicillin removal.

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“…Shrimp waste was crushed after drying by the household grinder. Then demineralized in 1 N HCl is added at a ratio of 1 to 20 for 2 h with around 125 rpm was stirred [6] , [7] . The acid mixture of shrimp waste was placed at room temperature for 24 h to remove its minerals, including calcium carbonate.…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

“…The effects of operational parameters including pH (4, 5 and 6), contact time (30, 45, 60, 75 and 90 min), initial As (V) concentration (200, 300 and 400 mg/L), and adsorbent dosage (2, 3 and 4 mg/L) were assessed. The samples were stirred at 250 rpm for given contact times and after centrifugation at 2000 rpm, and passing through a 0.2 μm membrane filter, Then, the concentration of Arsenic was determined by ICP device [2] , [7] . The design of experiments was carried out using central composite design [9] .…”

Section: Experimental Design Materials and Methodsmentioning

confidence: 99%

Experimental dataset on adsorption of Arsenic from aqueous solution using Chitosan extracted from shrimp waste; optimization by response surface methodology with central composite design

2018

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The aim of data was to evaluate the efficiency of chitosan extracted from shrimp waste for Arsenic adsorption and optimization by response surface methodology (RSM) with central composite design (CCD). The data showed that, with increasing contact time, the amount of adsorption increased and the optimal contact time was about 60 min. With increasing pH decreased adsorption, although this reduction was not significant. The optimum pH was obtained at 4.41. The average amount of adsorbent capacity was also about 1.3 mg/g. Overall, chitosan extracted from shrimp waste could be considered as an efficient material for the adsorption of Arsenic from aqueous solution.

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Modification of pumice with HCl and NaOH enhancing its fluoride adsorption capacity: Kinetic and isotherm studies

Cited by 74 publications

References 34 publications

Removal of the metronidazole from aqueous solution by heterogeneous electro-Fenton process using nano-Fe3O4

Removal of the metronidazole from aqueous solution by heterogeneous electro-Fenton process using nano-Fe3O4

Data on modeling of UV/Na2S2O8/FeS2 process in amoxicillin removal using Box-Behnken methodology

Experimental dataset on adsorption of Arsenic from aqueous solution using Chitosan extracted from shrimp waste; optimization by response surface methodology with central composite design

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