Abstract
Experiments were carried out using the cavitation type liquid-waste treatment system with ozone to treat food-industry wastewater. The highly efficient gas solution system employing a friction panel at the tip of a nozzle improves the dissolution efficiency by decreasing the diameter of bubbles to 1/100 of that of the existing air blow system. When organic soil pollutions were treated, the values of first-order rate constant that are Dichloromethane, Trichloroethylene, and Tetrachloroethylene were 0.9287, 2.5136, and 2.452380 respectively within thirty minutes. This system has also been proved to be more effective than the aerator for water containing VOC and Thiuram. When the system treats 1000 ton of water which is polluted 100 times more than the environmental standard values, the estimated cost 20 million yen and the processing time would be about a month.
