Immobilization of modified zeolite on polyethylene surface: characterization and its application toward phosphate removal and microalgae growth

Abstract

Herein, firstly zeolite was modified with Na + and Fe 3+ ions and then immobilized on polyethylene surface to construction of modified zeolite coated surface (MZCS). The prepared MZCS was characterized by using XRD, ATR-FTIR, SEM and EDXA techniques and its ability toward phosphate removal was examined and compared with unmodified zeolite coated surface (ZCS). Affecting parameters on phosphate removal were investigated and our results showed the ZCS and MZCS achieved to 32.4% and 70.6% phosphate removal ability after 2 h, for 25.0 ppm phosphate at pH 7.0, respectively. The phosphate adsorption results very well fitted in the Langmuir isotherm model for both the ZCS and MZCS. The maximum adsorption capacity as 6.317 and 7.097 mg/g was observed for the ZCS and MZCS, respectively. Finally, the application of the ZCS and the MZCS for phosphate removal from wastewater and its effect on microalgae growth was tested in two media with three replications. Observed results were presented and discussed here.