低温等离子体技术对结晶紫废水的脱色效能及影响因素研究
TQ09; 目的 探索新型低温等离子体(low temperature plasma,LTP)对结晶紫(crystal violet,CV)模拟废水的脱色效能及关键影响因素.方法 利用氩气大气压等离子体射流产生LTP,以CV为目标污染物,通过调整处理体积、初始pH值、NaCl浓度、Fe2+等参数,评估LTP处理前后CV溶液的吸光度(A590)和化学需氧量(chemical oxygen demand,COD)的变化,并监测液相中活性粒子的动态变化.结果 与对照组相比,LTP处理组的A590和COD值均显著降低(P＜0.05).在处理时间为180 s时,CV溶液脱色率和COD去除率分别达到62....
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| Published in | 西安交通大学学报（医学版） Vol. 46; no. 1; pp. 12 - 19 |
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| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
西安交通大学医学部公共卫生学院,陕西西安 710061%西安交通大学医学部公共卫生学院,陕西西安 710061%西安交通大学第一附属医院PET-CT室,陕西西安 710061
2025
西安思源学院医学院,陕西西安 710038 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1671-8259 |
| DOI | 10.7652/jdyxb202501002 |
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| Abstract | TQ09; 目的 探索新型低温等离子体(low temperature plasma,LTP)对结晶紫(crystal violet,CV)模拟废水的脱色效能及关键影响因素.方法 利用氩气大气压等离子体射流产生LTP,以CV为目标污染物,通过调整处理体积、初始pH值、NaCl浓度、Fe2+等参数,评估LTP处理前后CV溶液的吸光度(A590)和化学需氧量(chemical oxygen demand,COD)的变化,并监测液相中活性粒子的动态变化.结果 与对照组相比,LTP处理组的A590和COD值均显著降低(P＜0.05).在处理时间为180 s时,CV溶液脱色率和COD去除率分别达到62.34％和50.22％.在相同处理时间(＞90 s)时,0.1 mol/L的NaCl组、pH=9或11组及Fe2+组CV溶液的A590均低于LTP单独处理组,而添加正丁醇组则高于LTP单独处理组(P＜0.05);处理体积为2、3 mL组CV溶液的A590高于1 mL组(P＜0.05).LTP作用相同时间,与CV溶液相比,活化水中的H2O2含量较高,而NO3-含量较低,差异具有统计学意义(P＜0.05).结论 LTP对CV溶液具有高效的脱色能力.NaCl和Fe2+的加入以及提高CV溶液pH均有利于脱色,而增大处理体积或添加正丁醇则会对脱色产生不利影响.在脱色过程中,LTP产生的?OH和H2O2发挥了重要作用. |
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| AbstractList | TQ09; 目的 探索新型低温等离子体(low temperature plasma,LTP)对结晶紫(crystal violet,CV)模拟废水的脱色效能及关键影响因素.方法 利用氩气大气压等离子体射流产生LTP,以CV为目标污染物,通过调整处理体积、初始pH值、NaCl浓度、Fe2+等参数,评估LTP处理前后CV溶液的吸光度(A590)和化学需氧量(chemical oxygen demand,COD)的变化,并监测液相中活性粒子的动态变化.结果 与对照组相比,LTP处理组的A590和COD值均显著降低(P＜0.05).在处理时间为180 s时,CV溶液脱色率和COD去除率分别达到62.34％和50.22％.在相同处理时间(＞90 s)时,0.1 mol/L的NaCl组、pH=9或11组及Fe2+组CV溶液的A590均低于LTP单独处理组,而添加正丁醇组则高于LTP单独处理组(P＜0.05);处理体积为2、3 mL组CV溶液的A590高于1 mL组(P＜0.05).LTP作用相同时间,与CV溶液相比,活化水中的H2O2含量较高,而NO3-含量较低,差异具有统计学意义(P＜0.05).结论 LTP对CV溶液具有高效的脱色能力.NaCl和Fe2+的加入以及提高CV溶液pH均有利于脱色,而增大处理体积或添加正丁醇则会对脱色产生不利影响.在脱色过程中,LTP产生的?OH和H2O2发挥了重要作用. |
| Abstract_FL | Objective To investigate the decolorization performance and key influencing factors of a novel low temperature plasma(LTP)on crystal violet(CV)simulated wastewater.Methods In this experiment,CV was used as the target pollutant and treated with LTP generated by argon atmospheric pressure plasma jet;the absorbance(A590)and chemical oxygen demand(COD)of CV solution were systematically evaluated before and after LTP treatment by adjusting the treatment volume,initial pH value,NaCl concentration,addition of Fe 2+and other parameters.The dynamic changes of active particles in the liquid were monitored.Results Compared with those of the control group,the A590 and COD values of LTP treatment groups were significantly reduced(P＜0.05).At the treatment time of 180 s,the decolorization rate and COD removal rate of CV solution reached 62.34％and 50.22％,respectively.Under the same treatment time(＞90 s),the A590 values in the 0.1 mol/L NaCl group,pH=9 or 11 group,and Fe2+group were lower than those in LTP-only treatment group,but the A590 values in the n-butanol group were higher(P＜0.05).The A590 values in 2 mL or 3 mL group were higher than those in 1 mL group(P＜0.05).Compared with CV solution treated with LTP,the H2O2 content in the activated water was higher while the NO3content was significantly lower than those in CV solutions(P＜0.05).Conclusion LTP has an efficient decolorization ability for CV solution.The decolorization of CV solution could be promoted by NaCl addition,Fe2+inclusion or high pH values,but was inhibited by the increase in treatment volume or the addition of n-butanol.The?OH and H2O2 generated by LTP played a key role in the decolorization process. |
| Author | 袁网 鹿佳佳 刘进仁 石兴民 李晓艳 |
| AuthorAffiliation | 西安思源学院医学院,陕西西安 710038;西安交通大学医学部公共卫生学院,陕西西安 710061%西安交通大学医学部公共卫生学院,陕西西安 710061%西安交通大学第一附属医院PET-CT室,陕西西安 710061 |
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| Author_FL | LIU Jinren SHI Xingmin YUAN Wang LI Xiaoyan LU Jiajia |
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| Keywords | 脱色 crystal violet(CV) decolorization 结晶紫(CV) low-temperature plasma(LTP) 低温等离子体(LTP) |
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| Title | 低温等离子体技术对结晶紫废水的脱色效能及影响因素研究 |
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