CHEN Jie, FENG Wei, LIU Yan, et al. Preparation and characteristics of organmontmorillonite and adsorption of oily wastewater from port[J]. CIESC Journal, 2008, (1): 228-231.
CHEN Jie, FENG Wei, LIU Yan, et al. Preparation and characteristics of organmontmorillonite and adsorption of oily wastewater from port[J]. CIESC Journal, 2008, (1): 228-231.DOI:
Organmontmorillonite (O-MMT) was modified by surfactant-octadecyltrimethylammonium bromide with Na-montmorollonite (Na-MMT).The characteristics and structure of the sorbent were investigated by Fourier transform infrared ray spectroscopy (FT-IR)
X-ray diffraction (XRD)
transmission electron microscope (TEM) and BET analysis.The results indicated that organic cations were exchanged into Na-MMTs stacks and the basal spacing (d001) increased from 1.26 nm to 3.80 nm.Then O-MMT was used as sorbent to treat oily wastewater from port.Comparing to Na-MMT
the COD (chemical oxygen demand) and oil removal increased by 5.0 times and 2.5 times
respectively .The effects of agitation time
the amount of O-MMT and recycle times of O-MMT were investigated and the optimum experiment condition at room temperature was established: adding 2.0 % O-MMT and agitating 30 min.The duty-cycle operation of O-MMT was three times.