(35b) Preparation of Zr(IV)-Loaded Membranes for Adsorptive Removal of as(V) from Aqueous Solutions
- Conference: AIChE Spring Meeting and Global Congress on Process Safety
- Year: 2008
- Proceeding: 2008 Spring Meeting & 4th Global Congress on Process Safety
- Group: Separations Division
- Time: Monday, April 7, 2008 - 8:30am-9:00am
The study of the adsorption performance to remove As(V) was carried out by using PVDF composited membranes with Zirconium hydroxide particles. The results of isotherm experiments demonstrated that data can be well described in terms of the Langmuir equation. The maximum adsorption capacity can be achieved at 21.5 mg/g of As(V) as the ratio of Zr(IV) particles and PVDF is 2:1. Adsorption kinetics of As(V) at two different concentrations followed pseudo-second-order rate equation. The optimum pH range for As(V) adsorption is found from 3 to 6. The morphology of the Zr(IV)/PVDF membrane was observed with a scanning electron microscope (SEM) which revealed the membrane with less particle dosage has smaller mean pore size and less apertures.
This paper has an Extended Abstract file available; you must purchase the conference proceedings to access it.
Do you already own this?
Log In for instructions on accessing this content.
|AIChE Graduate Student Members||Free|
|AIChE Undergraduate Student Members||Free|