Development of new water treatment of compound pollutants by photo chemical reaction

光化学反应复合污染物水处理新方法的研制

• 批准号: 07458136
• 负责人: OHGAKI Shinichiro
• 金额: $ 4.8万
• 依托单位: UNIVERSITY OF TOKYO
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07458136/
• 关键词: Medium pressure UV lamp; Low pressure UV lamp; Humic substances; Photocatalysis; Titanium dioxide; Residual germicidal effect; THMFP; 紫外線照射; 光触媒; 副生成物; フミン質; バイオインデックス

In this research, a residual germicidal effect after Ultraviolet irradiation was investigated. Medium pressure mercury lamp and low pressure mercury lamp were used as germicidal lamp. The sample solution was the river water which was used as the resource water of water purification plant. In this experiment, E.coli was used as model bacteria and coliphage Qbeta was used as model virus. Even though 10-20 times UV dose was introduced to the sample solution, the residual germicidal effect to E.coli and coliphage Qbeta wasn't observed. In case of the sample pretreated by 0.1mum filtration, the residual effect wasn't observed, either.Decomposition of humic substances were evaluated, using trihalomethane formation potential (THMFP) as index. Decomposition effect was investigated with various catalysts, too. Used catalysts were iron ion and TiO2. As results, THMFP was increased in first stage and decreased in following stage in cases of medium pressure UV lamp irradiation and TiO2 + UV.The same phenomena was reported in Ozonation before. Therefore, it is assumed that forming the low molecular was occurred by these treatment.

在这项研究中，研究了紫外线照射后的残留杀菌效果。采用中压汞灯和低压汞灯作为杀菌灯。样品溶液为河水作为净水厂的水源水。本实验以大肠杆菌为模型菌，以噬菌体Qbeta为模型病毒。即使在样品溶液中加入10-20倍的紫外线，仍未观察到对大肠杆菌和大肠杆菌噬菌体Qbeta的残留杀菌效果。以三卤代甲烷生成势(THMFP)为指标评价腐殖质的分解情况。同时考察了不同催化剂的分解效果。所用催化剂为铁离子和二氧化钛。结果表明，在中压紫外灯照射和二氧化钛+紫外光照射的情况下，THMFP呈先升高后降低的趋势，臭氧氧化过程中也有类似的现象。因此，可以推测低分子的形成是通过这些处理发生的。

项目成果

大垣眞一郎 他: "二酸化チタンを担持したタイルによるフェノールの光触媒分解" 環境工学研究フォーラム講演集. 33. 120-122 (1996)

Shinichiro Ogaki 等人：“使用支持二氧化钛的瓷砖光催化分解苯酚”环境工程研究论坛论文集 33. 120-122 (1996)。

S.Ohgaki et al.: "The characteristics of the middle of Tama river water evaluated by THMFP" Proc.Conference of JSWE. (1997)

S.Ohgaki 等：“THMFP 评估的多摩河中部水的特征”Proc.Conference of JSWE。

S.Ohgaki,K.Yamamoto et al.: "Role of Inorganic phosphorus in controring regrowth in water distribution system" Prosseding of I.A.W.Q.Asian ergional conference on Water Quality and Pollution Control. 587-594 (1995)

S.Ohgaki,K.Yamamoto 等人：“无机磷在控制配水系统再生中的作用”，I.A.W.Q.亚洲水质和污染控制会议论文集。

大垣眞一郎、大瀧雅寛、他: "THM生成能から見た多摩川中流域河川水の特性" 第31回水環境学会講演集. (発表予定). (1997)

Shinichiro Ogaki，Masahiro Otaki，等：“从THM生产能力角度看多摩川中流域河水特征”第31届水环境学会会议论文集（待发表）。

S.Ohgaki et al.: "Decomposition of organic material and inactivation in photocatalysis" Proc.Conference of Water Works Assoc.168-169 (1996)

S.Ohgaki 等人：“光催化中有机材料的分解和失活”Proc.Conference of Water Works Assoc.168-169 (1996)