Low operation cost: less than 40% of that of belt filter press, and less than 20% of that of centrifugal dewaterer Power saving: less than 5% of that consumed by the centrifugal dewaterer Water saving: less than 0.1% consumed by the belt filter press and medicine saving savedby 60% Small volume: save the investment into dewatering room Non-blocking: the strong opponent against oil and fiber sludge.