[1]邬长友.紫外/过硫酸盐预氧化强化混凝同步除藻和三氯酚[J].中国给水排水,2023,39(1):45-48.
　WUChang-you.UV/Persulfate Pre?oxidation Enhanced Coagulation for Simultaneous Removal of Algae and Trichlorophenol[J].China Water & Wastewater,2023,39(1):45-48.
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紫外/过硫酸盐预氧化强化混凝同步除藻和三氯酚

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第39卷 期数: 2023年第1期 页码: 45-48 栏目: 出版日期: 2023-01-01
Title:
UV/Persulfate Pre?oxidation Enhanced Coagulation for Simultaneous Removal of Algae and Trichlorophenol
作者:
邬长友
（中铁第四勘察设计院集团有限公司，湖北 武汉 430063）
Author(s):
WU　Chang-you
（China Railway Siyuan Survey and Design Group Co. Ltd.， Wuhan 430063， China）
关键词:
紫外/过硫酸盐;  铜绿微囊藻;  三氯酚;  预氧化;  混凝
Keywords:
UV/persulfate (UV/PS);  Microcystis aeruginosa;  trichlorophenol;  pre-oxidation;  coagulation
摘要:
以铜绿微囊藻和三氯酚（TCP）为研究对象，探究了紫外/过硫酸盐（UV/PS）预氧化强化混凝技术同步除藻和TCP的效果。结果表明，经过UV/PS预氧化强化混凝沉淀以后，对OD680、Chl-a、浊度和TCP的去除率分别提高了66.2%、67.4%、51.7%和95.6%；UV/PS预氧化阶段最佳PS投加量为100 mg/L，最佳预氧化时间为10 min。机理分析发现，UV/PS预氧化可以破坏细胞的完整性，使藻细胞释放胞内有机物（IOM），并且能够进一步破坏核酸；同时，UV/PS预氧化还可以降低藻细胞表面的Zeta电位、改变细胞粒径，进而强化混凝除藻。
Abstract:
The effect of UV/persulfate (UV/PS) pre-oxidation enhanced coagulation process on simultaneous removal of Microcystis aeruginosa and trichlorophenol (TCP) was investigated. After UV/PS pre-oxidation enhanced coagulation and precipitation, the removal rate of OD680, Chl-a, turbidity and TCP were increased by 66.2%, 67.4%, 51.7% and 95.6%. The optimal dosage of PS in the UV/PS pre-oxidation stage was 100 mg/L, and the optimal pre-oxidation time was 10 min. UV/PS pre-oxidation damaged the cell integrity which resulted in the release of intracellular organic matter (IOM) from algae, thus further destroyed the nucleic acid. In addition, UV/PS pre-oxidation also reduced the Zeta potential on the surface of algal cells, changed the cell size, and enhanced the removal of algal by coagulation.
更新日期/Last Update: 2023-01-01