Process for preparing composite floculating agent of aluminium sulfate and slaked lime

Abstract

The present invention discloses the preparation process of composite flocculant of aluminum sulfate and slaked lime, and belongs to the field of water treating technology in environment protection. The composite flocculant is prepared with aluminum sulfate, slaked lime polyacrylamide and vanadium oxide and through mixing, and may have active carbon added for eliminate high chroma in sewage. The composite flocculant can deposit various kinds of pollutant for separation, and test shows that the composite flocculant has CODcr and BOD5 eliminating rate over 60úÑ, and suspended matter and chroma eliminating rate over 90úÑ.

Description

technical field

[0001] The invention relates to the treatment of water pollution in environmental protection, in particular to a preparation method of a neutral, non-toxic, fast and efficient composite flocculant such as aluminum sulfate and slaked lime. Background technique

[0002] The "21st Century Agenda" adopted by the United Nations Conference on Environment and Development proposes this common strategy for the sustainable development of mankind. In this strategy, environmental protection is the material basis for sustainable development, and the protection of water resources and the control of water pollution are important links in protecting the environment. The rapid development of the industrial economy, the waste water discharged by industrial and mining enterprises, and the generation of civil construction projects The "environmental hazards" caused by improper treatment of the turbid water and the sewage discharged in human daily life have been constantly derivi...