| 摘要 |
The present invention concerns a process of production of chlorine dioxide comprising the following steps: producing sodium hypochlorite by electro-chlorination, producing chlorine from an acid and sodium hypochlorite obtained through the preceding step, producing chlorine dioxide from chlorine obtained by the previous steps and sodium chlorite. The invention further concerns a water treatment combined plant, comprising at least one electro-chlorinator (1) for producing sodium hypochlorite in solution, a first reaction chamber (4) to which sodium hypochlorite coming from said electro-chlorinator (1) and an acid solution coming from a first storage tank (13) and dosed by means of a first dosing section (2) arrive and from which a chlorine solution comes out, a second reaction chamber (5) to which said chlorine solution coming from said first reaction chamber (4) and a sodium chlorite solution arrive, coming from a second storage tank (14) and dosed by means of a second dosing section (3) and from which a chlorine solution dioxide comes out and an injection point (9) of said chlorine solution dioxide in a water treatment section. |
