纤维束-活性炭-沸石联用工艺净化城市污染雨水

摘要为了有效控制道路微污染雨水径流污染，利用纤维束-活性炭-沸石联用法对模拟雨水进行处理，考察该系统对浊度、TOC、氨氮及磷酸盐的去除效果。结果表明，当浊度、TOC、氨氮及磷酸盐浓度分别在（3.85~25.60 NTU）、（4.58~17.80 mg/L）、（0.31~1.42 mg/L）和（0.05~0.36 mg/L）范围内时，该联用工艺对上述污染物去除率分别为（79.2%~96.9%）、（82.7%~87.2%）、（87.5%~94.0%）和（52.9%~65.6%）。活性炭对TOC的吸附能力较强，其吸附过程符合Langmuir吸附等温线模型，单分子层最大吸附量为41.70 mg/g；沸石对氨氮和磷酸盐的吸附能力明显，其吸附过程同样符合Langmuir吸附等温线模型，单分子层最大吸附量分别为12.31和0.64 mg/g。该组合工艺是一种理想的净化城市污染雨水的方法。

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	曹军瑞
	王勋亮
	马宇辉
	王树勋
	赵瑾
	王文华
	姜天翔

关键词：雨水渗滤纤维束活性炭沸石

Abstract： In order to control the rainwater pollution from road runoff effectively, a fibre bundle-activated carbon-zeolite system was designed to remove a variety of pollutants such as turbidity, TOC, NH₄⁺-N and PO₄^3-. The results showed that when the concentration of turbidity, TOC, NH₄⁺-N and PO₄^3- were in the range of 3.85 NTU to 25.60 NTU, 4.58 mg/L to 17.80 mg/L, 0.31 mg/L to 1.42 mg/L and 0.05 mg/L to 0.36 mg/L respectively, the removal rates were 79.2% to 96.9%, 82.7% to 87.2%, 87.5% to 94.0% and 52.9% to 65.6%, respectively. Activated carbon has an excellent adsorption capacity for TOC, and the adsorption process conformed to Langmuir adsorption isotherm model. The maximum adsorption capacity of monomolecular layer was 41.70 mg/g. While zeolite has a better adsorption capacity for NH₄⁺-N and PO₄^3- than the activated carbon, and the adsorption process also conformed to Langmuir adsorption isotherm model. The maximum adsorption capacity of monomolecular layer was 12.31 mg/g and 0.64 mg/g respectively. The combined process was an ideal method to purify the urban polluted rainwater.

Keywords： rainwater； filtration； fibre bundle； activated carbon； zeolite

Received 2018-09-18;

Fund:中央级公益性科研院所基本科研业务费专项（K-JBYWF-2018-QR02；K-JBYWF-2017-G15；K-JBYWF-2016-T8）；天津市"十三五"海洋经济创新发展示范项目（BHSF2017-20）。

Corresponding Authors: 王勋亮,E-mail:1105897867@qq.com。 Email: 1105897867@qq.com

About author: 曹军瑞(1976-),男,高级工程师,现从事水污染治理研究。

引用本文:

曹军瑞, 王勋亮, 马宇辉, 王树勋, 赵瑾, 王文华, 姜天翔.纤维束-活性炭-沸石联用工艺净化城市污染雨水[J]. 化学工业与工程, 2019,36(5): 43-51

Cao Junrui, Wang Xunliang, Ma Yuhui, Wang Shuxun, Zhao Jin, Wang Wenhua, Jiang Tianxiang.Purifying Urban Polluted Rainwater with Fibre Bundle-Activated Carbon-Zeolite Coupled System[J]. Chemcial Industry and Engineering, 2019,36(5): 43-51

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