ABSTRACT

Fu, L.; Liu, Y.; Wang, Z.; Chen, Y., and He, C., 2018. Ion adsorption of rice straw to marine heavy metal polluted waste water. In: Liu, Z.L. and Mi, C. (eds.), Advances in Sustainable Port and Ocean Engineering. Journal of Coastal Research, Special Issue No. 83, pp. 359–363. Coconut Creek (Florida), ISSN 0749-0208.

The structure of rice straw fiber is modified by opening the bond of cellulose molecular chain, introducing new functional groups, changing inherent characteristics of cellulose. The cellulose adsorbent with high adsorption capacity is prepared, and used to simulate adsorption study of marine heavy metal Cr (VI) waste water. Through adsorption experiments, the adsorption performance of modified rice straw for Cr (VI) in simulated waste water is studied. Experimental results show that the absorbance of modified straw adsorbent for ion type fuel has obvious PH dependence, along with the increase the dosage of modified straw, removal rate of Cr (VI) ion in the solution is augmented.

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