REMOVAL OF HEAVY METALS FROM INDUSTRIAL WASTEWATER USING RED SEAWEED

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Assadian Farah; BEIRAMI PARI; Zoriasatein Farahnaz; Shakerin Nika

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Seminar Paper

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Seminar: SEMINAR OF CHEMISTRY AND ENVIRONMENT
Year:2013 | Issue:6

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Title

REMOVAL OF HEAVY METALS FROM INDUSTRIAL WASTEWATER USING RED SEAWEED

Author(s)

Assadian Farah | BEIRAMI PARI | Zoriasatein Farahnaz | Shakerin Nika | Issue Writer Certificate

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Abstract

CONTAMINATION OF WATER BY TOXIC HEAVY METALS THROUGH THE DISCHARGE OF INDUSTRIAL WASTEWATER IS A WORLDWIDE ENVIRONMENTAL PROBLEM [1]. INDUSTRIAL WASTEWATERS ARE USUALLY THE CAUSE OF HEAVY METALS POLLUTION OF THE ENVIRONMENT. MANGANESE IS ONE OF THE ENVIRONMENTAL POLLUTANTS, WHICH IS TOXIC EVEN AT VERY LOW CONCENTRATIONS. DOMESTIC AND INDUSTRIAL DISCHARGES ARE PROBABLY THE TWO MOST IMPORTANT SOURCES FOR MN IN THE WATER ENVIRONMENT [2-3].BIO SORPTION IS ONE SUCH EMERGING TECHNOLOGY THAT HAS ATTRACTED INCREASED ATTENTION IN RECENT YEARS. BIO SORPTION EXPLOITS THE ABILITY OF MICROBIAL AND PLANT BIOMASS TO SEQUESTER HEAVY METAL IONS FROM AQUEOUS SOLUTION BY PHYSICOCHEMICAL MECHANISMS. DIFFERENT BIOMASS TYPES SUCH AS BACTERIA, FUNGI, AND ALGAE HAVE BEEN EXTENSIVELY STUDIED IN THE LAST DECADE WITH THE AIM OF IDENTIFYING HIGHLY EFFICIENT METAL REMOVAL BIO SORBENTS [4].IN THIS STUDY, THE ADSORPTION PROPERTIES OF MARINE ALGAE GRACILARIA CORTICOTA (RED ALGAE) FOR MN WERE INVESTIGATED. THE BIO SORPTION CAPACITIES WERE SOLUTION PH DEPENDENT AND THE MAXIMUM UPTAKE FOR MN (II) WITH INITIAL CONCENTRATIONS 75, 100 AND 150 MG/L AT PH 5.5 WAS OBTAINED 90.80%, 93.51%, AND 95.82%, RESPECTIVELY. THE BIO SORPTION KINETICS REVEALED THAT MN UPTAKE WAS FAST WITH 80% OF THE UPTAKE OCCURRING WITHIN 15 MIN OF THE CONTACT TIME AND THE EQUILIBRIUM WAS REACHED AT ABOUT 45 MIN. IT WAS CONCLUDED THAT THE GRACILARIA CORTICATA COULD BE USED AS AN EFFECTIVE BIO SORBENT FOR THE TREATMENT OF MANGANESE, OFTEN CONTAINING WASTEWATER STREAMS.BIO SORPTION EQUILIBRIUM WAS ESTABLISHED BY LANGMUIR AND FREUNDLICH ISOTHERM MODELS. ACCORDING TO THE ANALYSES CONDUCTED, THE BIO SORPTION OF MN2+ TO GRACILARIA CORTICATA WAS MORE CONSISTENT WITH FREUNDLICH ISOTHERM.

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APA: Copy

Assadian, Farah, BEIRAMI, PARI, Zoriasatein, Farahnaz, & Shakerin, Nika. (2013). REMOVAL OF HEAVY METALS FROM INDUSTRIAL WASTEWATER USING RED SEAWEED. SEMINAR OF CHEMISTRY AND ENVIRONMENT. SID. https://sid.ir/paper/916417/en

Vancouver: Copy

Assadian Farah, BEIRAMI PARI, Zoriasatein Farahnaz, Shakerin Nika. REMOVAL OF HEAVY METALS FROM INDUSTRIAL WASTEWATER USING RED SEAWEED. 2013. Available from: https://sid.ir/paper/916417/en

IEEE: Copy

Farah Assadian, PARI BEIRAMI, Farahnaz Zoriasatein, and Nika Shakerin, “REMOVAL OF HEAVY METALS FROM INDUSTRIAL WASTEWATER USING RED SEAWEED,” presented at the SEMINAR OF CHEMISTRY AND ENVIRONMENT. 2013, [Online]. Available: https://sid.ir/paper/916417/en

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