ARSENIC REMOVAL FROM AQUEOUS ENVIRONMENTS BY USING MORINGA PEREGRINA SEED EXTRACT AS A NATURAL COAGULANT

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BAZRAFSHAN E.; KORD MOSTAFAPOUR F.; FARIDI H.A.

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Paper Information

Journal: JOURNAL OF ZABOL UNIVERSITY OF MEDICAL SCIENCES AND HEALTH SERVICES (JOURNAL OF ROSTAMINEH) Year:2012 | Volume:4 | Issue:3 Page(s): 55-68

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Information Journal Paper

Title

ARSENIC REMOVAL FROM AQUEOUS ENVIRONMENTS BY USING MORINGA PEREGRINA SEED EXTRACT AS A NATURAL COAGULANT

Author(s)

BAZRAFSHAN E. | KORD MOSTAFAPOUR F. | FARIDI H.A. | Issue Writer Certificate

Keywords

ARSENIC REMOVALQ2

MORINGA PEREGRINAQ2

COAGULATIONQ2

NATURAL COAGULANTSQ2

Abstract

Background: Arsenic has been considered as one of the most hazardous elements for the living organisms and its presence in natural waters, can result in serious health and environmental problems. In this study, MORINGA PEREGRINA seed extract’s ability to remove arsenate from aqueous solutions, in a batch system was investigated.Materials and methods: This study is an experimental study which was performed in a batch reactor. The effects of major operating variables such as coagulant dose (0.1–5 ml L-1) and pH (2-11) were investigated.Results: The optimum pH for ARSENIC REMOVAL by COAGULATION using MORINGA PEREGRINA seed extract was 6 and the highest removal was found to be 94.61%, 92.03% and 93.98% at initial As (v) concentration 100, 200 and 500 μg L-1, respectively, as a result of precipitation, co-precipitation and adsorption mechanisms.Conclusion: According to the results, it was defined that MORINGA PEREGRINA seed extract not only was an inexpensive coagulant, but also it is a quite effective factor in removal of As (V) from aqueous environments.

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