per and nickel, acid mist liquid from production of cobalt, slurry from production of zinc ore, vanadate ammonia from production of vanadium, acid and sulfuric acid from production of gold etc.
Iron and steel industry:
Electroplating, pickling, waste acid treatment
Acid industry:
Nitric acid, sulfuric acid, hydrochloric acid, phosphoric acid, acetic acid, etc.Petrochemical refining acetaldehyde, alkyl manufacturing.
Synthetic fiber and plastics industry:
Dilan, PVC production, textile, printing