超滤-纳滤双膜工艺深度净化天然雨水试验  

Experiment of UF-NF Hybrid Membrane Process of Advanced Purification for Natural Rainwater

作　　者：郝文冉 来存贤 朱学武 成小翔 徐景涛[1] 武道吉[1,2] HAO Wenran;LAI Cunxian;ZHU Xuewu;CHENG Xiaoxiang;XU Jingtao;WU Daoji(School of Municipal and Environmental Engineering,Shandong Jianzhu University,Jinan 250101,China;Resources and Environment Innovation Institute,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]山东建筑大学市政与环境工程学院,山东济南250101 [2]山东建筑大学资源与环境创新研究院,山东济南250101

出　　处：《净水技术》2024年第1期74-80,共7页Water Purification Technology

基　　金：国家自然科学基金(51908334);山东省重点研发计划(2020CXGC011203);山东省高等学校青年创新团队(2022KJ206);山东省科技型中小企业创新能力提升工程项目(2023TSGC0313)。

摘　　要：随着人口数量增长与城市工业化进程的不断加快,对水资源的需求日益剧增。为了缓解水资源压力同时减轻城市排水系统的负担,开展了超滤-纳滤双膜工艺深度净化天然雨水的试验,探究了双膜工艺对天然雨水的水质净化效果。结果表明,超滤-纳滤双膜工艺可以有效降低雨水中污染物含量,对UV_(254)、总溶解性固体、总有机碳和电导率的平均去除率分别为87.5%、66.7%、32.0%和61.4%。双膜技术实现了对雨水中固体颗粒和溶解性有机物的高效去除,同时对荧光类有机物也显示出优异的截留效果。相比于常规的水处理工艺(混凝-沉淀-过滤工艺),双膜技术因具有出水水质优异、无二次污染、处理效率高等优势,在雨水的高效分离和资源化利用领域展现出较大的应用潜力。As population growth and urban industrialization continue to accelerate,the demand for water resources is increasing.To alleviate the pressure of water resources and reduce the burden of the urban drainage system,an UF-NF hybrid membrane process for advanced purification of natural rainwater was carried out to investigate the effect of UF-NF hybrid membrane process on the treatment of natural rainwater quality.The experimental results showed that the UF-NF hybrid membrane process has a significant purification effect on rainwater water quality,and the removal rates of UV_(254),total dissolved solids(TDS),total organic carbon(TOC),and conductivity were 87.5%,66.7%,32.0%,and 61.4%,respectively.Excellent removal efficiencies of solid particles,dissolved organic matter,and fluorescent organic matter in rainwater was achieved for UF-NF hybrid membrane process.Compared with conventional water treatment processes(coagulation-sedimentation-filtration process),UF-NF hybrid membrane process has shown great application potential in the fields of efficient separation and resource utilization of rainwater due to its advantages of excellent water quality,no secondary pollution,and high treatment efficiency.

关 键 词：超滤(UF) 纳滤(NF) 双膜工艺 雨水 水资源回用 

分 类 号：X703[环境科学与工程—环境工程]