• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Employing a novel O3/H2O2 + BiPO4/UV synergy technique to deal with thiourea-containing photovoltaic wastewater
【24h】

Employing a novel O3/H2O2 + BiPO4/UV synergy technique to deal with thiourea-containing photovoltaic wastewater

机译：采用新型O3 / H2O2 + BIPO4 / UV协同作用技术来处理含硫的光伏废水

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Photovoltaic wastewater contains a large amount of thiourea that cannot be directly treated by biological methods because of its biotoxicity. In this study, a novel O _(3) /H _(2) O _(2) + BiPO _(4) /UV synergy technique was used as a pre-treatment process to degrade thiourea. The effects of H _(2) O _(2) and catalyst loading were investigated, and the transformation pathway of thiourea was predicted based on the intermediates detected by UPLC-Vion-IMS-QToF. The synergy technique degraded 89.14% thiourea within only 30 min, and complete degradation occurred after 150 min. The TOC removal of O _(3) /H _(2) O _(2) + BiPO _(4) /UV was 1.8, 1.5, and 1.9 times that of O _(3) /H _(2) O _(2) and BiPO _(4) /UV/H _(2) O _(2) single processes and O _(3) /H _(2) O _(2) + UV process, respectively, which was due to the synergy between H _(2) O _(2) residues and BiPO _(4) . In addition, thiourea was mainly degraded by ·OH into thiourea dioxide and melamine (polymerized by other intermediates) and then further degraded into biuret and methyl carbamate by the holes of BiPO _(4) , followed by complete mineralization into H _(2) O and CO _(2) . These results confirm that the O _(3) /H _(2) O _(2) + BiPO _(4) /UV synergy technique is a promising option for the degradation of thiourea.
机译：光伏废水含有大量的硫脲，不能因生物毒性通过生物方法直接治疗。在该研究中，使用新型O _（3）/ h _（2）O o _（2）+ BIPO _（4）/ UV协同技术作为预处理过程，以降解硫脲。研究了H _（2）o _（2）和催化剂负荷的影响，基于UplC-ViOn-IMS-QTOF检测到的中间体预测硫脲的转化途径。协同技术在仅30分钟内降解了89.14％的硫脲，并且在150分钟后发生完全降解。 O_（3）/ h _（2）o _（2）+ BIPO _（4）/ UV的TOC除去O _（3）/ h _（2）+（2）/ UV为O _（3）/ h _（2）o的1.8,1.5和1.9倍_（2）和BIPO _（4）/ UV / H _（2）O _（2）单个进程和O _（3）/ h _（2）o _（2）+ UV过程，分别为由于H _（2）O _（2）残留物和BIPO _（4）之间的协同作用。此外，硫脲主要通过·OH进入硫醚和三聚氰胺（由其它中间体聚合）来降解，然后通过BIPO _（4）的孔进一步降解到对伯脲和甲基氨基甲酸甲酯中，然后将矿化完全矿化成H _（2） o和co _（2）。这些结果证实O _（3）/ h _（2）O _（2）+ BIPO _（4）/ UV协同技术是硫脲降解的有希望的选择。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号