Preliminary Study on Control of Water Treatment Foam by Pulsed High Voltage Discharge
(0) A novel method for controlling the foam of water treatment process using pulsed high voltage discharge has been developed. Bubbles formed by sodium lauryl sulfate solution are used to simulate foam formed in water treatment. The bubbles are destroyed during explosion of discharge when passing the gap between the two horizontally fixed stainless steel mesh electrodes above the water surface. The air in bubbles is released and the growth speed of the foam then can be decreased.When the air flow rates are 0.005 m3·s-1, 0.075 m3·s-1 and 0.1 m3·s-1, the most foam growth rates of 333mg·L-1, 500mg·L-1, 1000mg·L-1 sodium lauryl sulfate solution and can be reduced by pulsed discharge to 10％-30％ of the original rate without discharging. The best mitigation rate is 43.1％ of 333mg·L-1 sodium lauryl sulfate solution formed foam at the discharge voltage of 40 kV. The explosion of bubbles is the result of discharge streamers penetrating on the surface bubbles and the air released from the exploded surface bubbles.
pulsed high voltage discharge foam sodium lauryl sulfate water treatment
Yang Shidong Cui Fengguo Ma Jun
School of Civil Engineering, Northeast Dianli University, Changchun Road 169, Jilin City, 132012, P. School of Municipal & Environmental Engineering, Harbin Institute of Technology, Haihe Road 202, Har
国际会议
上海
英文
3394-3396
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）