| EGSB出水回流对EGSB—SBR工艺处理果汁废水的影响 |
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| 引用本文： | 李婷,刘永红,赵蕾,蔡会勇.EGSB出水回流对EGSB—SBR工艺处理果汁废水的影响[J].化工环保,2015,35(1):34-38. |
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| 作者姓名： | 李婷 刘永红 赵蕾 蔡会勇 |
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| 作者单位： | 1. 西安工程大学 环境与化学工程学院，陕西 西安 710048；; 2. 烟台富美特食品科技有限公司，山东 烟台 264004 |
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| 基金项目： | 国家自然科学基金项目，国家科技重大专项项目，陕西省科技统筹创新工程计划项目，陕西省科学技术研究发展计划项目 |
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| 摘 要： | 采用EGSB—SBR工艺处理实际果汁废水(COD 2 608~6 500 mg/L,p H 5.0~7.0)。在EGSB反应器成功启动及驯化完成的情况下,连续运行49 d。实验结果表明:第25天起,控制EGSB回流比为3.00∶1,EGSB反应器可在无须添加Na HCO3的条件下稳定运行,从而降低了废水处理成本;第25天起,平均进水COD,BOD5,SS分别为5 968,2 130,1 020 mg/L,平均出水COD,BOD5,SS分别降至131,11,50 mg/L,平均COD,BOD5,SS去除率分别为98%,99%,95%;组合工艺对该实际果汁废水具有良好的处理效果。
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| 关 键 词： | 果汁废水 膨胀颗粒污泥床 序批式反应器 出水回流 低碱度 |
| 收稿时间： | 2015-03-18 |
Influence of EGSB Effluent Recycling on Treatment of Fruit Juice Wastewater by EGSB-SBR Process |
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| Li Ting,Liu Yonghong,Zhao Lei,Cai Huiyong.Influence of EGSB Effluent Recycling on Treatment of Fruit Juice Wastewater by EGSB-SBR Process[J].Environmental Protection of Chemical Industry,2015,35(1):34-38. |
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| Authors: | Li Ting Liu Yonghong Zhao Lei Cai Huiyong |
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| Institution: | 1. College of Environmental and Chemical Engineering,Xi’an Polytechnic University,Xi’an Shaanxi 710048,China;2. Yantai Foodmate technology Co. Ltd.,Yantai Shandong 264004,China |
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| Abstract: | The practical fruit juice wastewater with 2 608-6 500 mg/L of COD and 5.0-7.0 of pH was treated by EGSB - SBR process. After successful startup and acclimation of the EGSB reactor,the continuous operation was carried out for 49 d. The experimental results show that：The EGSB reactor can run stably without NaHCO3 addition when the EGSB reflux ratio is 3.00∶1 from the 25th day,thus the treatment cost is decreased;From then on,when the average COD,BOD5 and SS of the influent are 5 968,2 130, 1 020 mg/L respectively, those of the effluent are 131,11,50 mg/L with 96%,99% and 95% of their removal rates respectively. |
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| Keywords: | fruit juice wastewater expanded granular sludge bed sequence batch reactor effluent recycling low alkalinity |
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