Waste acid treatment in metal products industry has problems such as low resource utilization,high treatment dif-ficulty,and high environmental pressure.Introduce common waste acid treatment methods in metal product industry,com-pare and analyze common waste acid treatment methods such as neutralization,high temperature calcination,evaporation crystallization,fluidized bed,ion exchange,membrane treatment,etc.Resource utilization treatment is current develop-ment trend of waste acid treatment technology in metal product industry both domestically and internationally.Compared with other waste acid treatment methods,fluidized bed method has characteristics of mature and advanced technology,recy-clable regenerated acid,and can simultaneously solve the problem of acid washing line wastewater treatment.This method has low operating costs,is safe and efficient,and can produce high quality iron oxide particles.It can achieve zero sewage discharge and has high social and economic benefits.
metal products industrywaste acid treatmentregenerated acidfluidized bedmembrane treatment