polyacrylamide is the most widely used flocculating agent in the treatment of water , which can improve the flocculation effect , overcome the floating of the floc in the dry season , save alum consumption , reduce the water purification cost , improve the water quality , remove the chroma ,...
polyacrylamide is the most widely used flocculating agent in the treatment of water , which can improve the flocculation effect , overcome the floating of the floc in the dry season , save alum consumption , reduce the water purification cost , improve the water quality , remove the chroma , remove organic substances and algae , and reduce the mutagenicity .
PAM is a kind of linear high molecular polymer . It is one of the most widely used varieties in water - soluble polymer . The polyacrylamide and its derivatives can be used as effective flocculant , thickening agent , paper reinforcing agent and liquid drag reducing agent .
An anionic polyacrylamide ( APAM ) is a water - soluble high molecular polymer , which is mainly used for flocculation and sedimentation of various industrial waste water , and is mainly used for sewage treatment , sludge dewatering and the like of various industrial waste water , such as waste water in iron and steel plant , waste water in electroplating factory , metallurgical waste water , coal washing waste water and the like .
Anionic polyacrylamide action :
1 , clarifying and purifying ;
2 . Sedimentation promotion ;
3 , filtering and promoting ;
4 . Thickening and other functions .
Application field of anionic polyacrylamide :
1 . The treatment of industrial wastewater . The suspended particles are coarse , the concentration is high , the ions are positively charged , the PH value of water 7 - 14 is neutral or alkaline sewage treatment effect is good , such as waste water such as iron and steel waste water , electroplating factory waste water , metallurgical waste water , coal washing waste water and the like .
2 . Water treatment . The water resources of many water plants in our country come from rivers and lakes , sediment and mineral content . Although precipitation filtration still does not reach the standard , it is necessary to add flocculating agent . Using anionic polyacrylamide as flocculant , adding amount is 2 % -5 % of inorganic flocculating agent , but the effect is tens of times of inorganic solvent .
3 . The recovery of distillers undefined grains and starch in alcohol factories and starch factories is made .
4 . Water plugging agent for water plugging for profile control of oil field , oil displacement agent for tertiary oil production ( with 17 million to 25 million ultra - high molecular weight anionic PAM ) .
5 . The papermaking auxiliary agent and anionic polyacrylamide are widely used in papermaking , and can be used as a flocculating agent for long - fiber paper - making dispersing agent , dry - wet reinforcing agent , retention , filtration and papermaking wastewater .
Cationic polyacrylamide ( CPAM ) is a linear high molecular compound . Because it has many active groups , it can adsorb and form hydrogen bonds with many substances . It is mainly used for treating waste water with high organic colloid content in industries such as dyeing , paper making , food , building , metallurgy , dressing , coal powder , oil field , aquaculture and fermentation . It is especially suitable for dewatering treatment of municipal sewage , municipal sludge , papermaking sludge and other industrial sludge .