This product is used as flocculant for sludge regulation in urban sewage, industrial sewage and wastewater treatment system. It is especially suitable for dehydration of suspended organic sludge and biodegradable sludge such as raw sewage or processing sewage, food processing wastewater, fermentation wastewater, and clarification of various types of industrial wastewater. This product can be used as retention aid in papermaking industry and dewatering of wastewater sludge containing fiber. It is used to treat various mineral slurries in mining and mineral processing. It is also used for oil-water separation, crude oil dehydration and oily wastewater treatment in oil fields and refineries. It is also widely used in daily chemical industry and textile industry.