| 水力空化-O3氧化联合超声吸附处理煤气化废水 |
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| 引用本文： | 王金榜,刘月娥,徐世贵,马凤云,徐向红.水力空化-O3氧化联合超声吸附处理煤气化废水[J].化工环保,2018,38(5):575-580. |
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| 作者姓名： | 王金榜 刘月娥 徐世贵 马凤云 徐向红 |
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| 作者单位： | 1. 新疆大学 化学化工学院,新疆 乌鲁木齐 830046;2. 新疆大学 煤炭清洁转化与化工过程自治区重点实验室,新疆 乌鲁木齐 830046 |
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| 基金项目： | 自治区重点实验室开放课题项目（2015KL022）; 国家级大学生创新创业训练计划项目（201510755008） |
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| 摘 要： | 采用水力空化-O3氧化与超声吸附法联合处理煤气化废水。吸附剂以钙基膨润土为原料,经十六烷基三甲基溴化铵改性制得。通过单因素实验分别探讨了水力空化-O3氧化与超声吸附的适宜处理条件,并在该条件下对废水进行联合处理。实验结果表明：在O3通量194.4 mg/L、空化时间60 min、入口压力0.4 MPa、废水pH 10.00的优化条件下,水力空化-O3氧化对COD和苯酚的去除率分别达67.3%和57.5%;在此基础上进一步采用超声吸附法处理废水,在吸附剂投加量0.06 g/mL、超声时间60 min、废水pH 4.00、吸附温度25 ℃的优化条件下,处理后出水中COD和苯酚质量浓度分别降至317.1 mg/L和117.9 mg/L;COD和苯酚的总去除率分别达97.9%和96.6%。
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| 关 键 词： | 水力空化 超声吸附 煤气化废水 COD 苯酚 |
| 收稿时间： | 2017-12-15 |
Treatment of coal gasification wastewater by hydrodynamic cavitation-O3 oxidation combined ultrasonic adsorption |
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| WANG Jinbang,LIU Yuee,XU Shigui,MA Fengyun,XU Xianghong.Treatment of coal gasification wastewater by hydrodynamic cavitation-O3 oxidation combined ultrasonic adsorption[J].Environmental Protection of Chemical Industry,2018,38(5):575-580. |
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| Authors: | WANG Jinbang LIU Yuee XU Shigui MA Fengyun XU Xianghong |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering,Xinjiang University,Urumqi Xinjiang 830046,China;2. Key Laboratory of Coal Clean Conversion & Chemical Engineering Process of Xinjiang Uygur Autonomous Region,Xinjiang University,Urumqi Xinjiang 830046,China; |
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| Abstract: | The coal gasification wastewater was treated by hydrodynamic cavitation-O3 oxidation combined ultrasonic adsorption process. The adsorbent was made of calcium bentonite and modified with cetyltrimethylammonium bromide. The suitable conditions of hydrodynamic cavitation-O3 oxidation and ultrasonic adsorption were discussed respectively by single factor experiments,and the wastewater was treated by combined process under the conditions. The experimental results showed that：The removal rate of COD and phenol by cavitation-O3 oxidation reached respectively 67.3% and 57.5%,under the optimized conditions of O3 amount 194.4 mg/L,cavitation time 60 min,initial pressure 0.4 MPa and wastewater pH 10.00;On this basis,the effluent was treated further by ultrasonic adsorption;When the adsorbent amount 0.06 g/mL,adsorption time 60 min,wastewater pH 4.00 and adsorption 25 ℃,the COD and phenol mass concentration of final effluent decreased to 317.1 mg/L and 117.9 mg/L,respectively;The total removal rate of COD and phenol was 97.9% and 96.6%,respectively. |
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| Keywords: | hydrodynamic cavitation ultrasonic adsorption coal gasification wastewater COD phenol |
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