INVESTIGATING THE EFFICIENCY OF DISSOLVED AIR FLOTATION PROCESS FOR ANILINE REMOVAL FROM AQUATIC ENVIRONMENTS

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AHMADI SHAHIN; KORD MOSTAFAPOUR FERDOS; BAZRAFSHAN EDRIS; KASHITARASH ESFAHANI ZAHRA; RAKHSH KHORSHID ATAOLLAH

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Journal: WATER AND WASTEWATER Year:2017 | Volume:28 | Issue:3 Page(s): 64-73

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Title

INVESTIGATING THE EFFICIENCY OF DISSOLVED AIR FLOTATION PROCESS FOR ANILINE REMOVAL FROM AQUATIC ENVIRONMENTS

Author(s)

Keywords

DISSOLVED AIR FLOTATIONQ3

AQUATIC ENVIRONMENTQ2

ANILINEQ3

REMOVALQ2

Abstract

Aniline is an almost undegradable compound found in many industrial effluents. It was the objective of this lab-scale applied-experimental study to determine the efficiency of the DISSOLVED AIR FLOTATION process in the REMOVAL of ANILINE from AQUATIC ENVIRONMENTs. Initially, the optimal conditions of pH and dosage of poly-aluminum chloride were determined using the jar test. The parameters involved in the DISSOLVED AIR FLOTATION process including coagulant concentration (10, 20, 30, 40, and 60 mg.l‒1), coagulation time (5, 15 ,10 , and 20 min), flotation time (5, 10, 15 and 20 s), saturation pressure (3.5 / 3, 4, and 5.4 atmospheres), and turbidity (10, 20, 30, 40, and 60 NTU) on the reduction of COD and ANILINE were then calculated. Results showed that the DISSOLVED AIR FLOTATION process was capable of reducing COD and ANILINE by 86.6% and 95%, respectively (at pH = 6, an initial ANILINE concentration of 200 mg/ L, a coagulation time of 10 min, a flotation time of 20 s, a saturation pressure of 4 atmospheres, and a concentration of 20 mg/L PAC). It was also shown that REMOVAL efficiency declines with increasing turbidity. It may, therefore, be claimed that the DISSOLVED AIR FLOTATION process is an effective method of removing ANILINE from AQUATIC ENVIRONMENTs.

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References

SYNTHESIS AND PROPERTIES OF FE3O4-ACTIVATED CARBON MAGNETIC NANOPARTICLES FOR REMOVAL OF ANILINE FROM AQUEOUS SOLUTION: EQUILIBRIUM, KINETIC AND THERMODYNAMIC STUDIES

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APA: Copy

AHMADI, SHAHIN, KORD MOSTAFAPOUR, FERDOS, BAZRAFSHAN, EDRIS, KASHITARASH ESFAHANI, ZAHRA, & RAKHSH KHORSHID, ATAOLLAH. (2017). INVESTIGATING THE EFFICIENCY OF DISSOLVED AIR FLOTATION PROCESS FOR ANILINE REMOVAL FROM AQUATIC ENVIRONMENTS. WATER AND WASTEWATER, 28(3 ), 64-73. SID. https://sid.ir/paper/103579/en

Vancouver: Copy

AHMADI SHAHIN, KORD MOSTAFAPOUR FERDOS, BAZRAFSHAN EDRIS, KASHITARASH ESFAHANI ZAHRA, RAKHSH KHORSHID ATAOLLAH. INVESTIGATING THE EFFICIENCY OF DISSOLVED AIR FLOTATION PROCESS FOR ANILINE REMOVAL FROM AQUATIC ENVIRONMENTS. WATER AND WASTEWATER[Internet]. 2017;28(3 ):64-73. Available from: https://sid.ir/paper/103579/en

IEEE: Copy

SHAHIN AHMADI, FERDOS KORD MOSTAFAPOUR, EDRIS BAZRAFSHAN, ZAHRA KASHITARASH ESFAHANI, and ATAOLLAH RAKHSH KHORSHID, “INVESTIGATING THE EFFICIENCY OF DISSOLVED AIR FLOTATION PROCESS FOR ANILINE REMOVAL FROM AQUATIC ENVIRONMENTS,” WATER AND WASTEWATER, vol. 28, no. 3 , pp. 64–73, 2017, [Online]. Available: https://sid.ir/paper/103579/en

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