TREATMENT OF WASTE PICKLING SOLUTION BY THE POLYMERIC IRON SULFATE PROCESS

A new process for producing polymeric iron sulfate, a new high efficient coagulant, directly from waste sulfuric acid solution is introduced. The economic efficiency of the treatment of waste acid solution by this process is 40% higher than that by the ferrous sulfate process with no second environment pollution. Thus, the new process is considered to be the desirable treatment of waste acid solution by now.