METHOD FOR REGENERATING A WASH SOLUTION THAT IS USED FOR SIMULTANEOUS WASHING OUT OF NITROGEN OXIDE AND SULFUR DIOXIDE FROM SMOKE GASES.

摘要

In a method for the regeneration of washing solution, which is used for washing nitrous oxide and sulfur dioxide out from exhaust gases, a portion of the washing solution containing a complex-forming substance, which is Iron (II)-chelate complex of ethylenediaminotetraacetic acid (EDTA), is removed from the washing solution flowing in a closed circuit, and imidodisulfonate in this portion is separated from the washing solution and is further used as a commercial product.