| 纳米TiO2光催化-超滤法处理模拟二级出水 |
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| 引用本文： | 王旭东, 唐婧, 王磊, 黄丹曦, 夏四清. 纳米TiO2光催化-超滤法处理模拟二级出水[J]. 环境工程学报, 2016, 10(4): 1615-1620. doi: 10.12030/j.cjee.20160406 |
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| 作者姓名： | 王旭东 唐婧 王磊 黄丹曦 夏四清 |
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| 作者单位： | 1. 西安建筑科技大学环境与市政工程学院, 西安 710055; 2. 同济大学环境科学与工程学院, 上海 200092 |
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| 基金项目： | 国家自然科学基金资助项目(51278408) 陕西省科技统筹创新工程计划项目(2013KTCL03-16) 陕西省科技新星项目(2014KJXX-65) |
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| 摘 要： | 采用纳米TiO2光催化-超滤对模拟二级出水进行处理。分别考察了纳米TiO2光催化剂的投加量、光催化反应时间、光催化过程曝气量、膜出水通量以及回流比对废水中污染物去除率的影响。结果表明:光催化反应最优处理工况,纳米TiO2投加量250 mg/L、反应时间150 min、曝气量为1.0 L/min、膜出水通量为115 L/(m2·h)、错流过滤的回流比200%;在此工况条件下,出水的UV254和TOC的去除率分别为96%和84%。
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| 关 键 词： | 超滤 光催化 纳米二氧化钛 二级出水 |
| 收稿时间： | 2015-01-14 |
Treatment of simulated secondary effluent with a method of nano-TiO2 photocatalysis and ultrafiltration membrane |
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| Wang Xudong, Tang Jing, Wang Lei, Huang Danxi, Xia Siqing. Treatment of simulated secondary effluent with a method of nano-TiO2 photocatalysis and ultrafiltration membrane[J]. Chinese Journal of Environmental Engineering, 2016, 10(4): 1615-1620. doi: 10.12030/j.cjee.20160406 |
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| Authors: | Wang Xudong Tang Jing Wang Lei Huang Danxi Xia Siqing |
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| Affiliation: | 1. School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; 2. College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | The technology of nano titanium dioxide (TiO2) photocatalysis and ultrafiltration membranes are used in advanced wastewater treatment.In order to understand the effects of this treatment, the dosage of nano-TiO2, photocatalytic reaction time, aeration rate, water flux, and reflux ratio were investigated.The results showed that the best treatment performance could be achieved when the dosage of nano-TiO2 was 250 mg/L, reaction time was 150 min, aeration rate was 1.0 L/min, membrane water flux was 115 L/(m2·h), and reflux ratio was 200%.In addition, the removal rates of UV254 and TOC in the final effluent were 96% and 84%, respectively. |
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| Keywords: | ultrafiltration photocatalysis nano-TiO2 secondary effluent |
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