吉林大学学报(理学版)

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FeCl3/PAM混凝-光催化氧化法对海水的预处理

张春玲1, 全玉莲2,3, 石碧清3, 康春莉2   

  1. 1. 吉林农业工程职业技术学院 生物工程系, 吉林 四平 136000； 2. 吉林大学 环境与资源学院, 长春 130012；3. 中国环境管理干部学院 环境工程系, 河北
    秦皇岛 066004
  • 收稿日期:2012-11-12 出版日期:2013-07-26 发布日期:2013-08-06
  • 通讯作者: 康春莉 E-mail:kangchunli2002@163.com

Pretreatment of Seawater by FeCl3/PAM CoagulationPhotocatalytic Oxidation Process

ZHANG Chunling1, QUAN Yulian2,3, SHI Biqing3, KANG Chunli2   

  1. 1. Department of Biological Engineering,  Jilin Agriculture Engineering Polytechnic College, Siping 136000,Jilin Province, China; 2. College of Environment and Resources, Jilin University, Changchun 130012, China;3. Department of Environment Engineering,  Environmental Management College of China,Qinhuangdao 066004, Hebei Province, China
  • Received:2012-11-12 Online:2013-07-26 Published:2013-08-06
  • Contact: KANG Chunli E-mail:kangchunli2002@163.com

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摘要：

采用混凝光催化技术对海水进行预处理. 实验结果表明： 当温度为10～25 ℃、 pH为7.0～8.0、 FeCl3投加量为2.5 mg/L、 聚丙烯酰胺(PAM)投加量为0.75 mg/L时, 海水中浊度去除率为96%； 以纳米TiO2为催化剂进行光催化氧化, 当光催化剂用量为1.8 g/L、 反应25 h时, 化学需氧量(COD)降解率为99.58%. 混凝与光催化协同作用, 可使海水中浊度及有机物均达到反渗透的进水水质要求.

关键词: FeCl3/PAM混凝, 光催化氧化, 浊度去除率, 化学需氧量降解率

Abstract:

Coagulationphotocatalytic technology was used to pretreat seawater. The results show that at a temperature of 10—25 ℃, pH 7.0—8.0, 2.5 mg/L FeCl3, 0.75 mg/L PAM, water turbidity removal rate was as high as 96%. When nanoTiO2 catalyst was uesd for the photocatalytic oxidation of organic compounds in seawater in an amount of 1.8 g/L for a light reaction time of 2.5 h, the degradation rate of COD was up to 9958%. Synergistic effect between coagulation and photocatalytic oxidation eventually made effluent water meet the requirements of RO.

Key words: FeCl3/PAM coagulation, photocatalytic oxidation, turbidity removal rate, chemical oxygen demand (COD) degradation rate

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  • X55
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