刘会军,乔永莲,董宇,张书海,张燕燕.芬顿氧化法处理铝合金化铣清洗液的研究[J].表面技术,2017,46(2):220-223.
LIU Hui-jun,QIAO Yong-lian,DONG Yu,ZHANG Shu-hai,ZHANG Yan-yan.Treatment of Cleaning Solution of Chemical Milling for Aluminum Alloy by Fenton Oxidation Process[J].Surface Technology,2017,46(2):220-223 |
| 芬顿氧化法处理铝合金化铣清洗液的研究 |
| Treatment of Cleaning Solution of Chemical Milling for Aluminum Alloy by Fenton Oxidation Process |
| 投稿时间：2016-06-01 修订日期：2017-02-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2017.02.037 |
| 中文关键词: 铝合金 化铣 三乙醇胺 芬顿氧化 CODCr |
| 英文关键词:aluminum alloy chemical milling triethanolamine fenton oxidation CODCr |
| 基金项目:辽宁省自然科学基金-航空联合开放基金（2015022001） |
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| Author | Institution |
| LIU Hui-jun | Laboratory for Metal Corrosion and Protection, Chinese Academy of Sciences, Shenyang 110016, China |
| QIAO Yong-lian | Shenyang Aircraft Industries (Group) Co., Ltd, Shenyang 110850, China |
| DONG Yu | PLA Military Representative Office in Shenyang Aircraft Industries (Group) Co., Ltd, Shenyang 110034, China |
| ZHANG Shu-hai | Shenyang Aircraft Industries (Group) Co., Ltd, Shenyang 110850, China |
| ZHANG Yan-yan | Shenyang Aircraft Industries (Group) Co., Ltd, Shenyang 110850, China |
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| 中文摘要: |
| 目的 铝合金化铣加工过程产生的大量清洗液，因三乙醇胺的存在而使其具有很高的化学吸氧量（COD），必须通过有效的方法予以除去才能安全排放。方法 采用芬顿氧化法对化铣清洗废液进行处理，通过试验方法优化，研究了废液初始pH、H2O2浓度、c(H2O2)/c(Fe2+)以及芬顿反应时间对清洗液CODCr去除率的影响。结果 初始pH值对CODCr去除率的影响最大。在正交试验的基础上，通过单因素试验进一步优化了反应条件，得出芬顿氧化法去除化铣清洗液中三乙醇胺的最佳反应条件为：pH=2.5，H2O2浓度为325 mmol/L，c(H2O2)/c(Fe2+)=12.5，反应时间为45 min。在此条件下，出水CODCr可降至40 mg/L以下，CODCr去除率达到99.1%。结论 芬顿氧化法可以有效地降解化铣清洗液中的三乙醇胺。 |
| 英文摘要: |
| Much cleaning solution generated during chemical milling for aluminum alloy must be effectively removed before safe discharge because it has high chemical oxygen demand (COD) due to the presence of triethanolamine. The cleaning solution produced during the chemical milling was treated by fenton oxidation process. The effects of initial pH, H2O2 concentration, c(H2O2)/c(Fe2+) and fenton reaction time of the effluent on CODCr removal rate of the cleaning solution were studied by optimizing test methods. The initial pH had most significant influence on the CODCr removal rate. Based on the orthogonal test, single factor experiment was carried out to further optimize reaction conditions, and optimum conditions for removing triethanolamine in chemical milling cleaning solution by virtue of fenton oxidation process were as follows: pH=2.5, H2O2 concentration=325 mmol/L, c(H2O2)/c(Fe2+)=12.5 and reaction time=45 min. Under such circumstance, effluent CODCr might decrease to 40 mg/L and a CODCr removal rate might amount to 99.1%. The triethanolamine in cleaning solution for chemical milling can be effectively degraded by fenton oxidation process. |
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