Preparation of Buoyant Adsorbent for the Removal of Heavy Metal Ions in Rainwater Runoff: Characteristics of Manganese – Dioxide – Coated Polypropylene Granules


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For the treatment of contaminated rainwater runoff, the synthesis of manganese dioxide and its coating onto buoyant polypropylene granule was done with accompanying adsorption experiments. Results showed 35-45 m oxide coating was stable under severe hydrodynamic conditions, had 37 mg of Mn attached per gram of granules, moreover, consisted of mixed birnessite and cryptomelane forms of manganese dioxide. Adsorption capacity of each gram of media was 4.9, 3.9, 0.98, 0.75 mg of Pb , Cu , Cd , and Zn , fitting well to the Freundlich adsorption model. Manganese-dioxide-coated polypropylene granules had favorable engineering advantages and excellent adsorptive properties, being challenging alternative to other practically-oriented in situ or centralized rainwater treatment media.



Edited by:

Junqiao Xiong




D. S. Rhee and S. Mavlyankariev, "Preparation of Buoyant Adsorbent for the Removal of Heavy Metal Ions in Rainwater Runoff: Characteristics of Manganese – Dioxide – Coated Polypropylene Granules", Advanced Materials Research, Vol. 586, pp. 103-106, 2012

Online since:

November 2012




[1] Ball D., Hamilton R., and Harrison R. The influence of highway-related pollutants on environmental Quality., Highway pollution, R. Hamilton and R. Harrison (Eds. ). Elsevier, New York, 1991, pp.1-47.


[2] McKenzie R.M. Manganese oxides and hydroxides., Minerals in soil environments, 2nd edition, J.B. Dixon and S.B. Weed, eds., Soil Science Society of America, Madison, Wis. (1989).

[3] O'Reilly S. E., Hochella, Jr. M.F. Lead sorption efficiencies of natural and synthetic Mn and Fe-oxides., Geochimica et Cosmochimica Acta 67 (2003) 4471-4487.


[4] Liu D., Teng Z., Cartledge F.K., Sansalone J.J. Surface characteristics of sorptive-filtration storm water media-Part I: Low density (< 1. 0) oxide coated buoyant media., J. Environmental Engineering 127 (2001) 868-878.


[5] Buser W., Graf P., and Feitknect W. Beitrag zur kenntris der Mangan (II) – manganit und des - MnO., Helv. Chem. Acta. 10 (1954) 947-963.

[6] Merkle P.B., Knocke W.R., Gallagher D.L., Junto-Rosso J., and Solberg T.N. Characterizing filter media mineral coatings., J. AWWA 88 (1996) 62-73.

[7] Yang D.S. and Wang M.K. Synthesis and characterization of birnessite by oxidizing pyrochroite in alkaline conditions,. Clays Clay Miner. 50 (2002) 63-69.


[8] Catts J.G., and Langmuir D. Adsorption of Cu, Pb and Zn by -MnO: Applicability of the site binding-surface complexation model., Applied geochemistry 1 (1986) 255-264.


[9] McKenzie R.M. (1980) The adsorption of lead and other heavy metals on oxides of manganese and iron., Aust. J. Soil Res. 21 (1980) 61-73.