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硅藻土助滤剂在海水净化中的应用

任华峰,苗英霞,邱金泉,张爱君,姜天翔,成玉,王静,张雨山   

  1. 国家海洋局天津海水淡化与综合利用研究所,天津 300192
  • 出版日期:2014-01-05 发布日期:2014-01-05

Application of the diatomite aids in seawater filtration

REN Huafeng,MIAO Yingxia,QIU Jinquan,ZHANG Aijun,JIANG Tianxiang,CHENG Yu, WANG Jing,ZHANG Yushan   

  1. Tianjin Institute of Seawater Desalination and Multi-purpose Utilization,State Oceanic Administration,Tianjin 300192,China
  • Online:2014-01-05 Published:2014-01-05

摘要: 目前国内尚无可借鉴的有关海水泳池循环净化工艺的经验和标准,因此对日益增多的海水游泳、戏水场馆池水的净化处理是必须面对的新课题。硅藻土预涂膜过滤技术作为一种高效的精密过滤技术,已成功应用于水质净化、食品工业等领域。本文对硅藻土助滤剂及硅藻土预涂膜过滤技术在海水游泳池池水净化中的应用进行了初步研究。筛选出过滤效果较好的硅藻土助滤剂CD08,布氏漏斗试验结果表明,CD08在投加量为1.0 kg/m2的条件下,对浊度、CODMn、尿素和细菌的去除率分别为98%、40%、32%和70%。在此基础上,采用实验室规模硅藻土预涂膜过滤装置进行小试试验,结果表明,在一个运行周期中,以硅藻土CD08为助滤剂的过滤装置运行良好,出水浊度在0.5 NTU左右,尿素的平均去除率为20%左右,CODMn的平均去除率为30%左右,细菌的平均去除率为68%左右。

关键词: 硅藻土过滤, 助滤剂, 海水, 游泳池

Abstract: Currently there are no experiences and standards of seawater swimming pool circulation purification technology. Diatomite precoating filtration technology has been successfully applied in water purification and food industry and other industrial filter as a kind of high precision filtration. The technology of diatomite precoating filtration was utilized in advanced treating the swimming poor seawater. Bucher funnel experimental results indicated that the 1.0 kg/m2 diatomite aids CD08 was effective and economical in removal of turbidity,CODMn,urea and organisms,and the average removal efficiency was 98%,40%,32% and 70% respectively. Further study with a laboratory-scaled diatomite filtration device with CD08 indicated that the average removal efficiency of CODMn,urea and organisms was 30%,20% and 68% respectively at the effluent turbidity at 0.5 NTU approximately.

Key words: diatomite filtration, filter aid, seawater, swimming poor

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