Study on the Efficient Production of Ozone Water by a Rotating Packed Bed

1. Article information

Title:Study on the Efficient Production of Ozone Water by a Rotating Packed Bed

2. Article link

DOI: http://pubs.acs.org/doi/10.1021/acs.iecr.8b06486

3. Journal Information

Journal Name: Industrial & Engineering Chemistry Research

4. Author Information: Taoran Liu,†,‡ Dan Wang,†,‡ Wei Wang,§ Qi Liang,§ and Lei Shao*,†

†State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China

‡Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical

Technology, Beijing 100029, China

§Beijing Water Business Doctor Co., Ltd., Beijing 100875, China

5. The product model used in the text: 3S-J5000 

ABSTRACT: 

This work employed a rotating packed bed (RPB) as an ozone contactor to produce ozone water. The effects of various operating conditions including the rotational speed of RPB, the gas and liquid volumetric flow rate, the concentration of gaseous ozone, and liquid treatment capacity of the packing on the quality of ozone water and the volumetric mass-transfer coefficient were investigated. The contrast experiments between the RPB and a stirred tank reactor (STR) reveal that ozone concentration in the ozone water produced by the RPB reached 77% of the saturated ozone concentration in water,compared to only 49% by the STR. The RPB not only shows a high absorption efficiency for ozone, but also exhibits the advantages of fast and continuous operation, making it an efficient ozone contactor for the production of ozone water.

Experimental Setup and Procedure. Figure 1

shows the production system of ozone water with the RPB as the ozone contactor. Deionized water was produced with a water purification system  Ozone was produced from oxygen source by an ozone generator (Model 3S-A10, Tonglin Technology Co. Ltd., Beijing, China), and ozone concentration in the gas was detected by a gaseous ozone analyzer (Model 3S-J5000, Tonglin Technology Co. Ltd., Beijing, China).