| 摘要 |
PROBLEM TO BE SOLVED: To remove a substance derived from a catalyst from waste water by a simple constitution at a low cost.SOLUTION: The gasification gas generation system 100 comprises: a gasification furnace 116 of gasificating a gasification raw material utilizing a catalyst to generate a gasified gas X1; a cleaning/refining part (a spray tower 214, a mist separator 216, a secondary heat exchanger 218 and a booster 220) of cleaning and refining the generated gasified gas X1 using water to generate a refined gasified gas X7; and a precipitation part 330 of bringing waste water Y6 generated in the cleaning/refining part with an acidic gas to precipitate a substance derived from a catalyst which is included in the waste water Y6. |
