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has been cited by the following article:

• TITLE: Treatment of Oily Wastewater Using Composite Flocculant of Polysilicate Ferro-Aluminum Sulfate – Rectorite

  AUTHORS: Shi-Qian Li, Pei-Jiang Zhou, Ling Ding, Kai Feng

  KEYWORDS: Polysilicate Ferro-aluminum Sulfate, Rectorite, Flocculation, Oily Wastewater

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.3 No.4, March 29, 2011

  ABSTRACT: In this study, a novel flocculant was prepared by an inorganic polymetric flocculant (IPF) - polysilicate ferro- aluminum sulfate (PSFA) and rectorite (REC). The structure of the PSFA-REC composite was characterized by Fourier transform infrared (FT-IR) spectroscopy and X-ray diffraction (XRD), in order to determine the optimal temperature. The flocculation test was made at 25℃, 45℃ and 65℃, the results indicated that when the temperature was 65℃, the removal efficiency of the oil and COD was the best, which was 87.2% and 92.6% respectively. Then by comparisons among rectorite (REC), PSFA and the composite PSFA-REC at the temperature of 65℃ and the optimal dosage of 11 mg/L, the composite PSFA-REC showed better flocculation performance than flocculant REC and PSFA alone.