| 于忠臣,钟柳波,王 松,吴 江,牛源麟,李转.化学通报,2016,79(4):372-376. |
| Fe(II)(EDTA)螯合物/UV催化臭氧工艺降解PAM溶液研究 |
| Study on Degradation of PAM Solution by Fe(II)(EDTA) Chelates/UVCatalytic Ozonation process |
| 投稿时间：2015-08-24 修订日期：2015-11-13 |
| DOI： |
| 中文关键词: Fe(II)(EDTA)螯合物, UV, 臭氧, PAM, 粘度 |
| 英文关键词:Fe(II)(EDTA) chelates UV ozone PAM viscosity |
| 基金项目:黑龙江省自然科学基金(B2015012) |
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| 中文摘要: |
| 研究采用Fe(II)(EDTA)螯合物/UV催化臭氧降解聚丙烯酰胺(PAM)溶液。考察Fe(II)(EDTA)螯合物/UV催化臭氧法对PAM溶液粘度、PAM去除率和可生化性的影响。研究表面活性剂对Fe(II)(EDTA)螯合物/UV催化臭氧工艺降低PAM粘度的影响,并探讨草酸对该工艺降解PAM溶液影响规律。研究结果表明,Fe(II)(EDTA)螯合物/UV催化臭氧法对PAM溶液降解效能良好,在15min内,PAM溶液粘度的可以降低57%,在120min后,PAM去除率可达75%,B/C从0.121提升到0.423。表面活性剂对Fe(II)(EDTA)螯合物/UV催化臭氧工艺降低PAM溶液粘度影响较小。草酸不利于Fe(II)(EDTA)/UV催化臭氧工艺去除PAM和降低PAM溶液粘度,这是因为草酸造成的酸性环境抑制了臭氧在水中的分解作用,从而导致草酸/Fe(II)(EDTA)/O3体系中PAM溶液的降粘效果和去除率低于Fe(II)(EDTA)/O3体系。 |
| 英文摘要: |
| A Fe(II)(EDTA) chelates/UV catalytic ozonation processes was used to treat Polyacrylamide(PAM) solution. The effect of the method of Fe(II)(EDTA) chelates/UV catalytic ozonation on viscosity, PAM removal rate and biodegradability of the solution was analyzed in detail. Moreover, the effect of surfactant and oxalic acid on the process to oxidize PAM solution were also discussed separately. The result shows that the method can well degrade the PAM solution. The removal rate of viscosity of the PAM solution is 57% in the first 15min, the PAM removal rate is up to 75% and the B/C ratio is improved from 0.121 to 0.423 by a large margin within 120min. Little influence was made by the surfactant on the process to reduce the solution viscosity. In addition, because acidic condition made by oxalic acid restrains the decomposition of O3 in aqueous solution, it is adverse for the process to degrade PAM and reduce the solution viscosity in the presence of oxalic acid, and the viscosity reduction efficiency and PAM removal rate of the solution in oxalic acid/Fe(II)(EDTA)/O3 system is lower than that in Fe(II)(EDTA)/O3 system. |
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