摘要
某水厂面临供水压力大、运行成本高及工艺效率低的问题,亟需寻找有效的技术手段以提升供水效率并降低运行成本。臭氧-活性炭联用工艺因在净水处理中的优越性能被选为研究对象,旨在通过工艺优化解决上述问题。本研究以活性炭的筛选及工艺优化为核心,通过正交实验,系统分析了臭氧投加量、臭氧接触时间及活性炭滤速等因素对工艺性能的影响。对多种类型的活性炭进行了筛选和表征,确定了煤质炭的优越性能。基于正交实验法,对不同的参数进行组合以优化工艺条件,确定的最佳工艺参数为:臭氧投加量为1.0mg·L^(-1),臭氧接触时间为16min,滤速为9.0m·h^(-1)。在此条件下,臭氧与活性炭的协同作用显著增强,有效提高了对有机污染物、消毒副产物前体物以及重金属离子的去除效率。研究结果表明,优化后的臭氧-活性炭联用工艺在提升净水效率和降低运行成本方面具有显著优势,可为水厂在不同水质条件下的活性炭选型及工艺应用提供重要参考,具有较好的实用性和推广价值。
The water treatment plants face significant challenges,including high water supply pressure,elevated operational costs,and relatively low process efficiency.It is an urgent need to identify effective technological solutions to enhance water supply efficiency and reduce costs.The ozone-activated carbon(OAC)combined process has been selected as the subject due to its superior performance in water purification.The primary objective is to address the aforementioned issues through process optimization.The research centered on the selection of activated carbon and process optimization,employing the orthogonal experiment to systematically analyze the effects of ozone dosage,ozone contact time,and activated carbon filtration rate on process performance.Through the screening and characterization of various types of activated carbon,coal-based carbon was identified as the most superior material.Based on the orthogonal experimental approach,the optimal process conditions were obtained:ozone dosage was 1.0mg/L,ozone contact time was 16 min,and filtration rate was 9.0m/h.Under these conditions,the synergistic effect of ozone and activated carbon was significantly enhanced,resulting in process performance that was markedly superior to other experimental groups.This optimization effectively improved the removal efficiency of organic pollutants,disinfection by-product precursors,and heavy metal ions.The research results indicate that the optimized ozone activated carbon combined process has significant advantages in improving water purification efficiency and reducing operating costs.It can provide important references for the selection and process application of activated carbon in water plants under different water quality conditions,and has good practicality and promotion value.
作者
马赫
强志民
董慧峪
蒋才芳
汤睿
刘绍刚
MA He;QIANG Zhimin;DONG Huiyu;JIANG Caifang;TANG Rui;LIU Shaogang(Key Laboratory of Chemistry and Engineering of Forest Products,State Ethnic Affairs Commission,Guangxi Key Laboratory of Chemistry and Engineering of Forest Products,Engineering Research Center of Low-carbon and High-quality Utilization of Forest Biomass,University of Guangxi,School of Chemistry and Chemical Engineering,Guangxi Minzu University,Nanning 530006,China;Key Laboratory of Drinking Water Science and Technology,Research Center for Eco-Environmental Science Chinese Academy of Science,Beijing 100085,China;Guangxi Nanning Water Co.,Ltd.,Nanning 530031,China)
出处
《化工技术与开发》
2025年第10期67-74,共8页
Technology & Development of Chemical Industry
基金
国家自然科学基金项目(21976040,22166008)
广西重点研发计划项目(桂科AB24010135)
广西高等学校高水平创新团队及卓越学者计划项目(桂教人[2020]6号)
广西研究生教育创新计划项目(YCBZ2023114)
南宁市科学研究与技术开发计划项目(ZC20223238)。
关键词
臭氧-活性炭联用工艺
活性炭筛选
正交实验法
ozone-activated carbon combined process
activated carbon selection
orthogonal experimental method
