Efficient phosphorus removal agent for removing phosphorus from sewage

Abstract

The invention provides an efficient phosphorus removal agent for removing phosphorus from sewage, and relates to the technical field of sewage treatment. The efficient phosphorus removal agent for removing phosphorus from sewage is prepared from the following raw materials in parts by weight: 8-13 parts of ferric chloride, 5-9 parts of copper sulfate, 5-10 parts of polydimethyldiallylammonium chloride, 5-10 parts of coagulant aid, 30-40 parts of water, 6-12 parts of polyferric sulfate, 5-10 parts of ferrous sulfate, 10-16 parts of aluminum sulfate, 8-12 parts of polyaluminum chloride, 7-13 parts of sodium aluminate, 5-10 parts of lime, 8-14 parts of caustic soda flakes, 4-8 parts of composite alkali and 5-10 parts of stabilizer. The efficient phosphorus removing agent for removing phosphorus from sewage is scientific, reasonable, simple in process and convenient to popularize; the polyaluminum chloride, the sodium aluminate, the lime, the caustic soda flakes and the composite alkali are added into the phosphorus removing agent at the same time, and in use, the phosphorus removing effect on sewage can be effectively improved; in addition, by adding the stabilizer into the phosphorusremoval agent, the storage and use effects of the phosphorus removal agent can be better improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a high-efficiency phosphorus removal agent for phosphorus removal in sewage. Background technique [0002] In recent years, with the development of industry and agriculture and the growth of population, the production and consumption of chemical fertilizers, pesticides, and phosphorus-containing detergents in China have increased rapidly, and the eutrophication of water bodies caused by water pollution has become increasingly serious, and eutrophication of water bodies has endangered Agriculture, fishery, tourism and many other industries also pose a huge threat to drinking water sanitation and food safety. The main nutrients that cause water eutrophication include organic carbon, nitrogen, phosphorus, potassium, etc. Organic carbon in sewage is generally It can be basically removed after biological treatment. The content of other components other than nitrogen and phosp...

AI Technical Summary

Problems solved by technology

Chemical phosphorus removal includes chemical precipitation, ion exchange, reverse osmosis and other methods. Chemical precipitation is the most widely used method. The latter methods are difficult to use due to high treatment costs. At present, the chemicals used for chemical assisted phosphorus removal in sewage can be mainly divided into Aluminum salts, iron salts, calcium salts, natural adsorbents and flocculants, etc., in use, because these phosphorus removal agents are mostly used alone, their use will cause poor phosphorus removal effect of existing phosphorus removal agents At the same time, the existing phosphorus removal agents are all solid agents, which have a large volume in solid blocks, dissolve slowly and have certain sediment when used, and are easy to agglomerate when stored for a long time