| abstract |
The present invention discloses a kind of remained ammonia treatment process, comprising the following steps: Step 1: filtering the large granular impurity in ammonium hydroxide by grid；Step 2: natural sedimentation 5h-8h, it is added flocculant in precipitation process, after the completion of precipitating, removes floaters on surface；Step 3: pH adjusting agent is added in water, its pH value is adjusted to neutrality；Step 4: high temperature circulation ammonium hydroxide is pumped at the top of ammonia still, volatilization ammonia in part therein is precipitated；Step 5: liquefy remaining water after will volatilize ammonia collection；Step 6: aeration tank, Air Exposure 5h-8h is added in water after liquefying；Step 7: being discharged after filtering.The present invention can effectively recycle ammonia. |