PERFORMANCE EVALUATION OF MAGNETIC-MULTIWALLED CARBON NANOTUBE IN REMOVAL OF 2, 4-DNP FROM AQUEOUS SOLUTIONS AND DETERMINING TOXICITY REDUCTION

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NOURISEPEHR GOLNAR; EMTIAZJOO MOZHGAN; NOURISEPEHR MOHAMMAD; DEHGHANIFARD EMAD

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Journal: JOURNAL OF ENVIRONMENTAL HEALTH ENGINERING Year:2016 | Volume:3 | Issue:4 Page(s): 337-349

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Title

PERFORMANCE EVALUATION OF MAGNETIC-MULTIWALLED CARBON NANOTUBE IN REMOVAL OF 2, 4-DNP FROM AQUEOUS SOLUTIONS AND DETERMINING TOXICITY REDUCTION

Author(s)

NOURISEPEHR GOLNAR | EMTIAZJOO MOZHGAN | NOURISEPEHR MOHAMMAD | DEHGHANIFARD EMAD | Issue Writer Certificate

Keywords

MAGNETIC-MULTIWALLED CARBON NANOTUBEQ2

2Q2

4-DNPQ2

TOXICITY REDUCTIONQ2

DAPHNIA MAGNAQ2

Abstract

Background and Objective: In Iran, due to vast development of different chemical and petrochemical industries and water resource pollution to refractory organic matters, using a costeffective method for the removal of those pollutant from drinking water. The aim of this study was to evaluate the performance of MAGNETIC-MULTIWALLED CARBON NANOTUBE for the removal of 2, 4- dinitrophenol from aquoeous solutions and deteremining TOXICITY REDUCTION of the effluent.Methods: Adsorption experiments were conducted in a batch system. MAGNETIC-MULTIWALLED CARBON NANOTUBEs were synthesized by co-precipitation method. Variables of contact time (0-90 min), pH (3, 5, 7, 9, 11), pollutant concentration (10-100 mg/L) and adsorbent concentration (1-2.5 g/L) were considered. For the determination of TOXICITY REDUCTION of the effluent, the Bioassay tests were applied by using DAPHNIA MAGNA which toxicity of 48h and 96 h were obtained.Results: Results were showed that the maximum removal of 92.97% in the contact time of 90 min were obtained in pH=7, pollutant concentration of 10 mg/L and adsorption concentration of 2.5 g/L. The adsorption process was in accordance with Freundlich isotherm which showed non-uniform and multi-layered adsorption on the surface of the adsorbent and heterogeneous adsorption. The results of the toxicity of 2, 4-DNP, before the adsorption process, on the DAPHNIA MAGNA organism showed that the lethal concentration (LC50) 48h and 96 h of the raw wastewater was 42 and 38 percent (4.2 and 3.8 mg/L), respectively.Conclusions: The MAGNETIC-MULTIWALLED CARBON NANOTUBE adsorbent could be a proper choice for removal of 2, 4-DNP, due to high removal efficiency, recyclability, reusability and activity in neutral pH.

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APA: Copy

NOURISEPEHR, GOLNAR, EMTIAZJOO, MOZHGAN, NOURISEPEHR, MOHAMMAD, & DEHGHANIFARD, EMAD. (2016). PERFORMANCE EVALUATION OF MAGNETIC-MULTIWALLED CARBON NANOTUBE IN REMOVAL OF 2, 4-DNP FROM AQUEOUS SOLUTIONS AND DETERMINING TOXICITY REDUCTION. JOURNAL OF ENVIRONMENTAL HEALTH ENGINERING, 3(4), 337-349. SID. https://sid.ir/paper/259221/en

Vancouver: Copy

NOURISEPEHR GOLNAR, EMTIAZJOO MOZHGAN, NOURISEPEHR MOHAMMAD, DEHGHANIFARD EMAD. PERFORMANCE EVALUATION OF MAGNETIC-MULTIWALLED CARBON NANOTUBE IN REMOVAL OF 2, 4-DNP FROM AQUEOUS SOLUTIONS AND DETERMINING TOXICITY REDUCTION. JOURNAL OF ENVIRONMENTAL HEALTH ENGINERING[Internet]. 2016;3(4):337-349. Available from: https://sid.ir/paper/259221/en

IEEE: Copy

GOLNAR NOURISEPEHR, MOZHGAN EMTIAZJOO, MOHAMMAD NOURISEPEHR, and EMAD DEHGHANIFARD, “PERFORMANCE EVALUATION OF MAGNETIC-MULTIWALLED CARBON NANOTUBE IN REMOVAL OF 2, 4-DNP FROM AQUEOUS SOLUTIONS AND DETERMINING TOXICITY REDUCTION,” JOURNAL OF ENVIRONMENTAL HEALTH ENGINERING, vol. 3, no. 4, pp. 337–349, 2016, [Online]. Available: https://sid.ir/paper/259221/en

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