| 煤气流解吸废氨水中氨氮的研究 |
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| 引用本文： | 李笑原,王光华,李文兵,龚凡杰,刘奇,刘铁军,杨书琴.煤气流解吸废氨水中氨氮的研究[J].武汉冶金科技大学学报,2010(6):652-655. |
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| 作者姓名： | 李笑原 王光华 李文兵 龚凡杰 刘奇 刘铁军 杨书琴 |
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| 作者单位： | [1]武汉科技大学煤转化与新型炭材料湖北省重点实验室,湖北武汉430081 [2]武汉科技大学化学工程与技术学院,湖北武汉430081 |
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| 摘 要： | 利用煤气流解吸焦化废水中的氨氮,通过小型工业化试验,得出其较优工艺条件：废水温度为90℃,气液体积比为850,解吸助剂投加量为20 mg/L,废水pH值为10.4,废水停留时间为120 min。此时焦化废水氨氮脱除率高达94.79%,处理后焦化废水中剩余氨氮含量为195 mg/L,完全满足生化进水要求。
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| 关 键 词： | 煤气流解吸法 氨氮 焦化废水 |
NH3-N removal from coking wastewater via coal gas stripping |
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| Authors: | Li Xiaoyuan Wang Guanghua Li Wenbing Gong Fanjie Liu Qi Liu Tiejun Yang Shuqin |
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| Affiliation: | 1. Hubei Coal Conversion and New Carbon Materials Key Laboratory, Wuhan University of Science and Technology, Wuhan 430081, China; 2. College of Chemical Engineering and Technology, Wuhan University of Science and Technology, Wuhan 430081, China) |
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| Abstract: | Ammonia scale study, by wh -nitrogen （NHa-N） in coking wastewater was treated by coal gas stripping in pilotich optimal operating conditions were obtained. It is found that, when wastewater temperature, gas-liquid volume ratio, dosage of stripping additive, wastewater pH value and residence time of wastewater are 90 ＇C, 850, 20 mg/L, 10.4 and 120 min, respectively, NHa-N removal reaches as high as 94.79%. The residual content of NH3-N in the treated coking wastewater is 195 mg/ L, which fully meets the requirements of biological treatment. |
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| Keywords: | coal gas stripping NH3-N coking wastewater |
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