Study on petrochemical excess activated sludge treatment by ultrasonic and ozone
超声、臭氧处理石化污水厂剩余活性污泥研究

The dewatering and disintegration of petrochemical excess activated sludge by ultrasonic and ozone is studied.The experimental results indicated that small power has a better effect on the sludge dewatering,and the optimum ultrasonic parameter is 70 V,2 min.The water ratio of sludge after vacuum filtration reduced with the ozone quantity increases in the test scope,and the optimum ozone quantity is 0.05 g O 3/g SS.The water ratio of ozonized sludge with ultrasonic is approximately 1% lower than that of ozon...