以自来水为试验对象 ,对紫外—臭氧和紫外—二氧化钛两种光化学氧化技术对水中微量有机污染物的去除进行了试验研究 ,结果表明两种工艺的 U V A (紫外吸光度 )去除率均达到 80 %以上 ,对氯仿的去除也均能达到国家饮用水标准。在此基础...以自来水为试验对象 ,对紫外—臭氧和紫外—二氧化钛两种光化学氧化技术对水中微量有机污染物的去除进行了试验研究 ,结果表明两种工艺的 U V A (紫外吸光度 )去除率均达到 80 %以上 ,对氯仿的去除也均能达到国家饮用水标准。在此基础上 ,自制了一种催化剂膜 ,并取得了预期的处理效果 。展开更多
The relationship of the electric conductivity of single and multi component of colloidal catalyst FeCl3 Al(i Bu)3 Phen with their concentration was studied in hydrogenated gasoline solvent at 25℃ ,meanwhile,the UV Vi...The relationship of the electric conductivity of single and multi component of colloidal catalyst FeCl3 Al(i Bu)3 Phen with their concentration was studied in hydrogenated gasoline solvent at 25℃ ,meanwhile,the UV Vis spectra of the corresponding component of the catalyst were detected.The experimental results showed that Al(i Bu)3 existed in associated state and dissociated into ion couple.The reaction between Al(i Bu)3 and FeCl3 was the main reaction to form colloidal core.The Fe(III) on the surface of the colloidal particles was reduced to lower valence by Al(i Bu)3.The stable complex formed by the reaction between Phen and Fe(II) could prevent Fe(II) from being reduced to lower valence.The colloidal particles were comparatively stable by means of the electric double layer yielded by a proper excess of Al(i Bu)3.The stable colloidal particles could be formed in the optimal ratio of the catalyst components.展开更多
文摘The relationship of the electric conductivity of single and multi component of colloidal catalyst FeCl3 Al(i Bu)3 Phen with their concentration was studied in hydrogenated gasoline solvent at 25℃ ,meanwhile,the UV Vis spectra of the corresponding component of the catalyst were detected.The experimental results showed that Al(i Bu)3 existed in associated state and dissociated into ion couple.The reaction between Al(i Bu)3 and FeCl3 was the main reaction to form colloidal core.The Fe(III) on the surface of the colloidal particles was reduced to lower valence by Al(i Bu)3.The stable complex formed by the reaction between Phen and Fe(II) could prevent Fe(II) from being reduced to lower valence.The colloidal particles were comparatively stable by means of the electric double layer yielded by a proper excess of Al(i Bu)3.The stable colloidal particles could be formed in the optimal ratio of the catalyst components.
