Abstract
A new effective removal of dissolved humic acid in aqueous medium has been performed by mean of adsorption onto Zn/Allayered double hydroxide (Zn/AI LDH). Zn/AI LDH was synthesized by direct precipitation method through the addition of 0.5 M NaOH solution to a mixed solution containing Zn(N03)2 and AI(N03)3 with molar ratio 0.1 : 0.05 until the acidity of the mixed solution reached pH 7.0. The removal of humic acid was based on adsorption process where the negatively charged humic acid would be adsorbed to the positively charged Zn/AI LDH surface. The optimum humic acid adsorption on Zn/AI LDH was observed at pH 5 with the first order rate constant, capacity, and energy of adsorption were 2.17 x 10.3min.l, 0.194 mmol g.1 (115 mg g.I), and 33.89 kJ morl, respectively. Literature survey showed that Zn/Al LDH is more than 6 times more effective than carbon as the most effective adsorbent of humic acid in the market.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
