铁碳微电解系统对废水中TP去除的效果及影响因素

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英文篇名：Removal Effect and Influencing Factors of TP by Iron-Carbon Microelectrolysis System in Wastewater 作者：何毅 ; 朱静平 英文作者：HE Yi;ZHU Jingping;School of Environment and Resources,Southwest University of Science and Technology;Low-cost Wastewater Treatment Technology International Sci-Tech Cooperation Base of Sichuan Province,Southwest University of Science and Technology; 关键词：铁碳微电解系统 ; 模拟含磷废水 ; TP去除率 英文关键词：Iron-carbon microelectrolysis system;;Simulated phosphorus-containing wastewater;;TP removal;;Removal rate 中文刊名：西南科技大学学报 英文刊名：Journal of Southwest University of Science and Technology 机构：西南科技大学环境与资源学院;西南科技大学低成本废水处理技术四川省国际科技合作基地; 出版日期：2019-03-31 出版单位：西南科技大学学报 年：2019 期：01 基金：四川省科技计划项目(2017SZ0084);; 四川省教育厅科研基金项目(18ZB0605) 语种：中文; 页：42-47 页数：6 CN：51-1640/N ISSN：1671-8755 分类号：X703

摘要

采用自配模拟含磷废水,通过批实验和正交实验探讨影响铁碳微电解系统对废水中TP去除效果的因素及其适宜因素值组合。研究结果表明:当废水初始TP浓度为5 mg/L,活性炭加入量为0. 03 g/m L时,在其pH值为3. 0,搅拌强度为110 r/min的条件下,吸附至25 min时,活性炭对模拟废水中TP的吸附基本达到饱和,其对TP的吸附去除率在19. 8%左右。不考虑活性炭对模拟废水中TP的吸附作用,单因素影响的研究表明,铁碳微电解系统对废水中TP去除效果较好的适宜pH值为3. 0,铁碳比为1∶1. 5,搅拌强度为110 r/min;正交实验显示,各因素对铁碳微电解系统去除TP影响程度由大到小的顺序依次为:初始pH值>铁碳质量比>反应时间>搅拌强度。采用最佳参数组合的铁碳微电解系统对废水中TP的去除率为20. 91%。
        Artificially prepared phosphorus-containing wastewater was used to study the influencing factors for the removal of total phosphorus( TP) through batch experiments and orthogonal experiments by an iron-carbon micro-electrolysis system. The results show that when the initial TP concentration of wastewater is 5 mg/L and the activated carbon is 0. 03 g/m L,the pH value of the wastewater is 3. 0 and the stirring intensity is 110 r/min,the TP adsorption by activated carbon reaches saturation basically in simulated phosphorus-containing wastewater when it is adsorbed for 25 min,and its adsorption removal rate of TP isabout 19. 8%. The study of different single-factor effects shows that the suitable pH value for iron-carbon micro-electrolysis system to remove TP in wastewater is 3. 0,the ratio of iron to carbon is 1∶ 1. 5,and the stirring intensity is 110 r/min. Orthogonal experiments show that the affecting factors of the TP removal from the iron-carbon microelectrolysis system follows this order: initial p H value > iron-carbon mass ratio >reaction time > stirring intensity. The removal rate of TP is 20. 91% in wastewater by iron-carbon microelectrolysis system with the best combination of parameters.

引文

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