With the development of economy and the acceleration of industrialization process, a large amount of domestic sewage and industrial wastewater without proper treatment are directly discharged into the river, causing a large amount of pollutants to deposit in the river bottom mud, seriously polluting and destroying the ecological environment of the river. The national government attaches great importance to it. In order to improve the ecological environment of inland rivers and ensure smooth drainage of rivers, it is often necessary to dredge the rivers from time to time. Flocculant for river dredging.
Due to the high water content and large volume of dredged river sediments, it is not convenient for storage, transportation and resource utilization. So it needs to be reduced to make it dehydrated quickly.
By adding different flocculants to the river sewage samples, Dongguan Shouxin Chemical Co., Ltd. obtained the sludge flocculation volume versus time curve, the ratio of flocculants and the sedimentation time, and then took the river bottom soil samples vertically before and after dredging. Analyzing the thickness of the silt layer and comparing the supernatant water sample with the original river water quality, etc., it is concluded that the dredging effect on the removal of underwater silt organic matter and the suction dredging. The test results show that the "Capitel> brand flocculant can quickly dehydrate the bottom sludge. Flocculant for river dredging.
For river sewage treatment, due to the limitation of the site conditions of the river course, it is not realistic to use biochemical treatment to remove high content of COD and SS in the water. Therefore, Capitel Chemical uses coagulant for pretreatment and weak anionic polyacrylamide to achieve sludge concentration. Medium-strong cation PAM is also used when sludge is dewatered.