摘要
主要采用“煤气吹脱解吸法”对焦化厂含氨废水中氨氮进行吹脱解吸的优选实验研究。实验的最佳反应条件为:T-80℃,pH=10.2,Q=5L/min(气液比为1500:1),t=120min,C=0-25mg/L。处理后废氨水中氨氮脱除率达到96%以上,取得了满意的效果,同时氰、酚和COD也都不同程度地被脱除。经生化处理后,氨氮含量可达到国家排放标准。
This text adopted "gas stripping and adsorption process" to do experiments on removing the ammonia nitro- gen from waste ammonia water in the coking plant. The best condition of the experiment is: T=80℃ ,pH= 10. 2, Q=SL/ min (air--liquid ratio is 1500:1), t=120min , C=0-25 L/min. The removing rate of the ammonia nitrogen in the treated ammonia water is over 96%, which obtains a satisfied result, simultaneously the cyanide, the phenol and the COD are removed in some degree. After bio--treatment,the target of NH3-N can meet the national discharge standard.
出处
《环境保护科学》
CAS
2007年第4期34-36,共3页
Environmental Protection Science
关键词
剩余氨水
煤气吹脱解吸法
氨氮脱除
Surplus Ammonia Water Gas Stripping and Adsorption Process Ammonia Nitrogen Removing