OXIDATION OF SIMAZINE - OZONE, ULTRAVIOLET, AND COMBINED OZONE ULTRAVIOLET OXIDATION

被引：45

作者：

LAI, MS

JENSEN, JN

WEBER, AS

机构：

[1] SUNY BUFFALO, DEPT CIVIL ENGN, BUFFALO, NY 14260 USA

[2] IND TECHNOL RES INST, HSINCHU, TAIWAN

来源：

WATER ENVIRONMENT RESEARCH | 1995年 / 67卷 / 03期

关键词：

CYANURIC ACID; OXIDATION; OZONE; SIMAZINE; ULTRAVIOLET RADIATION;

D O I：

10.2175/106143095X131565

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A laboratory study was conducted to investigate the kinetics and byproducts of simazine oxidation by ozone, ultraviolet radiation (UV), and combined ozone and UV. Byproducts were identified by HPLC. Simazine was oxidized rapidly by ozone, UV, and ozone and UV. For example, 4 mg/L simazine disappeared completely after oxidation by 34 mg/min ozone at pH 7.2 for 15 minutes. Simazine disappearance rates during ozonation increased with applied ozone dose and pH. Dealkylation and dechlorination byproducts were formed, and deamination byproducts appeared at higher ozone doses or higher pH. During UV and ozone and UV oxidation, simazine disappearance rates increased with UV intensity. Dechlorination byproducts were formed by UV oxidation. Dealkylation, deamination, and dechlorination byproducts were formed by combined ozone and UV treatment. In comparing oxidation systems, simazine disappearance rates during ozonation at pH 9.9 were similar to those observed during ozone and UV oxidation.

引用

页码：340 / 346

页数：7

共 25 条

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