Coal water slurry gasification process method suitable for treating waste water containing high-concentration ammonia and nitrogen and COD

The invention discloses a coal water slurry gasification process method suitable for treating waste water containing high-concentration ammonia and nitrogen and COD. The method includes the following steps that 1, coal water slurry is prepared; 2, the coal water slurry is combusted in a gasification furnace; 3, washing and cooling are carried out in a quenching chamber; 4, ash is collected and discharged; 5, crude gas is purified; 6, carbon black water is purified. By utilizing the production characteristic that it is needed to add part of water in coal water slurry preparation and adopting the process of preparing the coal water slurry by replacing clean river water with the waste water, problems existing in slurrying characteristics are effectively solved, the waste water is utilized without the limitation of the concentration of ammonia and nitrogen and COD, and industrialized continuous production is achieved; according to the coal water slurry prepared from the waste water containing high-concentration a