重庆石柱县某自来水厂工程文献综述
2020-05-24 12:33:23
臭氧-生物活性炭工艺在给水处理中的应用
摘要: 我国饮用水水源不同程度地存在污染情况,这使得常规处理工艺很难使出水达到日益提高的饮用水水质标准的严格要求。因此,采用饮用水深度处理工艺已越来越显得必要。本文介绍了臭氧化活性炭技术在生活饮用水深度处理中的应用。通过研究国内外臭氧生物活性炭工艺的发展现状和应用实践,综述臭氧化-生物活性炭联用技术的作用机理及在水处理中的应用研究,并提出了此项技术在应用中存在的问题,并介绍提高此项技术的应用措施。
关键字:臭氧;活性炭;臭氧生物活性炭;深度处理
Abstract:There is pollution in various degrees in source water of our country,
So it is difficult to make water meet the strict requirement of higher and hi-
gher water quality standards for drinking water .Thus,it is more and more necessary to adopt advanced treatment of drinking water.This paper introduces the application of ozone - biological activated carbon technology on drinking water .It indicates the ozone - biological activated carbon technology, mechanism and application in water treatment, and refers to the problems in the application and partly suggests possible solution to the problems as well ,through presenting the development and application of a process for ozone - biological activated carbon in our country and others.
Keywords:Ozonation;Activated carbon;BAC;Advanced treatment
近年来,水资源污染是当今世界范围内最普遍的问题之一,随着工业废水和生活污水排放量逐年增加,水源水质状况不断恶化,有机微污染物的种类和数量大大增加,部分地区原水已经低于劣Ⅴ类水平[1]。我国2005年的环境状况公报显示,全国110个环保重点城市中有20个城市的集中式饮用水水源地的水质达标率小于50%[2]。随着生活水平的提高,人民对饮用水的水质要求不断提高,加之循环经济和零排放的要求,传统地表水处理工艺对有机污染物的去除效果有限,为满足出水要求,在水源水质达不到Ⅱ类水体要求时,应考虑采用深度处理工艺[3]。臭氧-生物活性炭(O3-BAC)技术是目前最常用的深度水处理工艺,出水安全、水质达标,越来越受人们重视。
1. 臭氧-生物活性炭的发展概况
1.1 臭氧氧化技术