Fundamental Study on the Decomposition of Non-degradable Organic Substances with Photocatalyst filmed on Glass Tube.

玻璃管薄膜光触媒分解不可降解有机物的基础研究。

• 批准号: 15560477
• 负责人: HANEDA Morio
• 金额: $ 1.09万
• 依托单位: Akita National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15560477/
• 关键词: photocatalyst; Fumin-acid; colored water; non-degradable organic substance; light source; TOC; 栄養塩; 難分解性物質; ブラックランプ; 人工太陽灯

TiO2 photocatalyst is widely used in the field of air pollution now. But in the wastewater treatment, it is not so used so much, because of slow speed of decomposition rate. Considering the use of photocatalyst in future in this field, we studied the basic factor to influence the decomposition rate of organic substances in the treatment of Fumin-acid, natural colored water and secondly treatment effluents of sewage. As the results of investigation, the followings are obtained.1. The decomposition rate constant of Fumin-acid is less than the pure substrate, such as lactic acid.2. Temperature constant for Fumin-acid is to be 1.034 in the case of black light.3. The decomposition rate constant is proportional to the 0.4th power of W Number of light sources, the 1.32-2.26th power of filmed area of photocatalyst and the -0.5th power of the degree of color of the solution.4. The decomposition rate constant is inverse proportion to the 1th power of initial concentration of organic substances, especially in the case of less than 10 mg/l of initial concentration, the rate constant is to be very low value.5. Using the artificial solar light as light source, the rate constant is from 1/2 to 1/4 of that of UV light sources.

TiO2光触媒目前广泛应用于空气污染领域。但在废水处理中，由于分解速度较慢，应用较少。考虑到光催化剂今后在该领域的应用，我们研究了在富明酸、天然有色水及污水二次处理出水处理中影响有机物分解速率的基本因素。调查结果如下： 1．富马酸的分解速率常数小于纯底物乳酸。 2．黑光下富马酸的温度常数为1.034。 3．分解速率常数与光源数量W的0.4次方、光触媒涂膜面积的1.32-2.26次方、溶液颜色程度的-0.5次方成正比。 4．分解速率常数与有机物初始浓度的1次方成反比，特别是在初始浓度小于10mg/l的情况下，速率常数应取很低的值。 5．采用人造太阳光作为光源，速率常数为紫外光源的1/2～1/4。

项目成果

ガラス管担体光触媒を用いたフミン酸・高色度水の分解

玻璃管载体光催化剂分解腐殖酸和高色度水

• 发表时间: 2004
• 期刊: 平成15年度土木学会東北支部技術研究発表会講演概要
• 作者: 松井 光太郎

松井 光太郎: "ガラス管担体光触媒を用いたフミン酸・高色度水の分解"平成15年度東北支部技術研究発表会講演概要(土木学会東北支部). 772-773 (2004)

Kotaro Matsui：“使用玻璃管载体光催化剂分解腐殖酸和高色度水”2003年东北分会技术研究报告摘要（日本土木工程师学会东北分会）772-773（2004）。