| Precaution 1,Conference should be held daily beofore working. 2,Identification of dangeer should be operated on each workshop and products should 3,Refrain from fire and explosion 4,Refrain from harm of machines. 5, Protective equipment ； 6, Inspection management ； 7,Safety mark； 8, Cofferdam anti-acid ； |
Method 1,Source control； 2,Upgrading of equipments； 3,Optimization of process； |
End treatment measures 1,Solid waste burned outside； 2,Waste water pretreatmentCOD＜500mg/L 3, Exhaust two spray absorption and activated carbon and carbon fiber adsorption； |
