The company uses incineration of chlorinated wastes followed by recovery of hydrochloric acid. The toxic chlorinated wastes are incinerated in an oven. The combustion gases are first water-cooled in a closed circuit, then the hydrochloric acid that they contain are absorbed in water to give a marketable acid solution. In the standard process, the cooling water circulates in an open circuit and, because it takes on acid, must be neutralized before discharge. In both processes, the gases are neutralized in soda before being discharged into the atmosphere. The discharge of the cooling water is the principal source of pollution in the standard technique.