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Paper Information

Title: 

PHENOL REMOVAL FROM WASTEWATER BY MODIFIED CLAY

Type: PAPER
Author(s): MIRMOHAMADSADEGHI SAFOORA*,KAGHAZCHI TAHEREH
 
 *CHEMICAL ENGINEERING DEPARTMENT, AMIRKABIR UNIVERSITY OF TECHNOLOGY, NO.424, HAFEZ AVE., TEHRAN, IRAN
 
Name of Seminar: INTERNATIONAL CONFERENCE OIL, GAS, PETROCHEMICAL AND POWER PLANT
Type of Seminar:  CONFERENCE
Sponsor:  SHERKATE TAVONI AMOZESHI PAZHOHESHI VESTA
Date:  2012Volume 1
 
 
Abstract: 

A NEW TYPE OF MODIFIED CLAY WAS PRODUCED FROM A CA-BENTONITE TREATED WITH HYDROCHLORIC ACID AS A SURFACE MODIFIER AGENT AND THEN WITH HEXADECYLTRIMETHYLAMMONIUM BROMIDE (HDTMA) AS A SURFACTANT TO PRODUCE AN ORGANOPHILIC ADSORBENT. THE SPECIFIC SURFACE AREA OF THE MODIFIED CLAYS WAS 40% HIGHER THAN THE SPECIFIC SURFACE AREA OF BENTONITE TREATED ONLY WITH HDTMA. A SERIES OF KINETIC AND EQUILIBRIUM TESTS WERE CARRIED OUT TO STUDY THE EFFECTIVENESS OF THE MODIFICATION METHOD TO IMPROVE THE BENTONITE ABILITY TO REMOVE PHENOL FROM AQUEOUS SOLUTIONS. THE ADSORPTION CAPACITY OF MODIFIED BENTONITE WAS 10 TIMES GREATER THAN THE NATURAL BENTONITE. PHENOL ADSORPTION WAS FAST AND REACHED EQUILIBRIUM IN 30 MINUTES. ADSORPTION WAS DESCRIBED WITH HENRY AND FREUNDLICH ISOTHERMS.

 
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