摘要
【目的】珠江西航道水源作为广州市重要的备用水源,经过近几年来的水环境治理,水质得到了明显改善,现已具有作为饮用水正式水源的可能性。明确珠江西航道水源水质特性及其处理效能可为广州市未来启动珠江西航道水源提供工艺、技术与参数支持。【方法】该研究以珠江西航道水源为试验原水,开展原水水质特性及全流程工艺去除效能研究,明确原水水源水质特性及其处理效能。【结果】珠江西航道水源属于浑浊度、色度、有机物以及无机盐等污染物浓度偏高的微污染水源;生物接触氧化预处理可有效去除水中的无机盐,去除率最高为60.60%;絮凝沉淀过滤常规处理对水中各污染物去除效果均较好,浑浊度和色度的去除率超80%,有机物以及无机盐的最高去除率则分别为41.21%和89.72%;增加深度处理可进一步去除水中污染物,提升饮用水水质。其中,超滤-纳滤去除效果最好,对浑浊度和色度的去除率超80%,有机物以及无机盐的最高去除率则分别约为84.12%和71.95%;其次是紫外高级氧化,对有机物以及无机盐去除率最高分别为42.65%和37.43%;臭氧活性炭则相对而言效果较差,对浑浊度和色度的去除率为20%~50%,有机物和无机盐的最高去除率则分别为25.46%和35.99%。【结论】珠江西航道水源属于微污染水源,预处理+常规处理可去除原水中的大部分污染物,增加深度处理可进一步去除水中污染物,提升饮用水水质。综合来看,不同深度处理工艺的去除效果及运行成本大致呈现超滤-纳滤>紫外高级氧化>臭氧活性炭的趋势。
[Objective]The water source of the Pearl River West Channel,as an important backup water source in Guangzhou,has been significantly improved through water environment treatment in recent years,and now has the possibility of being used as a formal source of drinking water.Clarifying the water quality characteristics and treatment efficiency of the water source of the Pearl River West Channel can provide process,technology and parameter support for Guangzhou to launch the water source of the Pearl River West Channel in the future.[Methods]In this study,the raw water quality characteristics and the removal efficiency of the whole process were studied by taking the water source of the Pearl River West Channel as the test raw water,and the water quality characteristics and treatment efficiency of the raw water source were clarified.[Results]The water source of the the Pearl River West Channel was a slightly polluted water source with high turbidity,chromaticity,organic matter,inorganic salt and other pollutants;Biological contact oxidation pretreatment could effectively remove inorganic salts from water,with a maximum removal rate of 60.60%;The conventional treatment of flocculation sedimentation filtration had a good removal effect on various pollutants in water,with removal rates of turbidity and chromaticity exceeding 80%,and organic matter and inorganic salts maximum removal rate of 41.21%and 89.72%,respectively;Adding advanced treatment could further remove pollutants from water and improve the quality of drinking water.Among them,ultrafiltration nanofiltration had the best removal effect,with a removal rate of over 80%for turbidity and chromaticity,while maximum removal rate of organic matter and inorganic salts were about 84.12%and 71.95%,respectively;Next was ultraviolet advanced oxidation,which had a maximum removal rate of organic matter and inorganic salts 42.65%and 37.45%respectively;Ozone activated carbon had relatively poor performance,with removal rates ranging from 25.46%to 35.99%for maximum removal rate of turbidity and chromaticity,and about 20%and 30%for organic matter and inorganic salts,respectively.[Conclusion]The water source of the the Pearl River West Channel is a slightly polluted water source.Pretreatment+conventional treatment can remove most of the pollutants in the raw water.Increasing advanced treatment can further remove the pollutants in the water and improve the quality of drinking water.Overall,the removal effect and operating cost of different advanced treatment processes generally show a trend of ultrafiltration nanofiltration>ultraviolet advanced oxidation>ozone activated carbon.
作者
张道义
邹康兵
尹文选
谭俊杰
赫俊国
ZHANG Daoyi;ZOU Kangbing;YIN Wenxuan;TAN Junjie;HE Junguo(Guangzhou Municipal Engineering Design and Research Institute Co.,Ltd.,Guangzhou 510095,China;Guangzhou Municipal Water Supply Co.,Ltd.,Guangzhou 510600,China;School of Civil and Transportation Engineering,Guangzhou University,Guangzhou 510000,China)
出处
《净水技术》
2025年第7期67-77,158,共12页
Water Purification Technology
关键词
给水处理
全流程工艺
预处理
常规处理
深度处理
去除效能
water treatment
full process technology
pretreatment
conventional treatment
advanced treatment
removal efficiency
