臭氧水灭藻效能影响因素及动力学分析

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摘要针对现有的高级氧化除藻技术存在效率低、二次污染等问题,以小球藻为研究对象,采用自行设计的螺旋切割器制备高浓度臭氧水循环装置进行灭藻试验,探究臭氧水平衡浓度、反应时间、初始藻细胞光密度和初始反应温度对小球藻的灭活效果并进行动力学分析。结果表明:臭氧水平衡浓度9 mg·L^-1、初始藻细胞光密度0.4、初始反应温度25 ℃、反应时间12 min时,灭藻率可高达96.02%。通过对动力学拟合参数的比较,结果表明在臭氧水平衡浓度不低于11 mg·L^-1、初始藻细胞光密度不高于0.5、初始反应温度不低于20 ℃时,适宜使用一级动力学拟合;在臭氧水平衡浓度低于11 mg·L^-1、初始藻细胞光密度高于0.5、初始反应温度低于20 ℃时,更适用二级动力学拟合。

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	赵紫琴
	况欣怡
	王帅
	廖宏国
	崔政伟

关键词：小球藻臭氧水灭藻动力学

Abstract： At present, the available advanced oxidation processes for algae removal have problems of low efficiency, secondary pollution, etc. Taking Chlorella as research object, a high concentration ozone water cycle device assisted by a spiral cutter was designed to kill Chlorella. The effects of equilibrium concentration of ozone water, reaction time, initial optical density of algal cells and initial reaction temperature on Chlorella inactivation were investigated and kinetic analysis was conducted. The results show that the algae removal rate of ozone water on Chlorella could be as high as 96.02% when the equilibrium concentration of ozone water was 9 mg·L^-1, the initial reaction temperature was 25 ℃, the initial optical density of algal cells was 0.4 and the reaction time was 12 min. By comparing the fitting parameters, the results show that the first-order kinetic fitting was appropriate when the equilibrium concentration of ozone water was not lower than 11 mg·L^-1, the initial optical density of algal cells was not higher than 0.5, and the initial reaction temperature was not lower than 20 ℃, and moreover the second-order kinetic fitting was more appropriate when the equilibrium concentration of ozone water was lower than 11 mg·L^-1, the initial optical density of algal cells was higher than 0.5, and the initial reaction temperature was lower than 20 ℃.

Keywords： chlorella ozone water killing algae kinetics

Received 2022-06-13;

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Corresponding Authors: 崔政伟,教授,E-mail:cuizhengwei@jiangnan.edu.cn。 Email: cuizhengwei@jiangnan.edu.cn

About author: 赵紫琴(1997-),女,硕士研究生,现从事过程强化方面的研究。

引用本文:

赵紫琴, 况欣怡, 王帅, 廖宏国, 崔政伟.臭氧水灭藻效能影响因素及动力学分析[J]. 化学工业与工程, 2023,40(6): 136-143

ZHAO Ziqin, KUANG Xinyi, WANG Shuai, LIAO Hongguo, CUI Zhengwei.Influence factors and kinetics of higher concentration ozone water on inactivation of algae[J]. Chemcial Industry and Engineering, 2023,40(6): 136-143

[1] PEKEL J F, COTTAM A, GORELICK N, et al. High-resolution mapping of global surface water and its long-term changes[J]. Nature, 2016, 540(7633): 418-422
[2] FANG C, SONG K, PAERL H W, et al. Global divergent trends of algal blooms detected by satellite during 1982—2018[J]. Global Change Biology, 2022, 28(7): 2327-2340
[3] 2021年《中国生态环境状况公报》(摘录) [J].环境保护, 2022, 50(12): 61-74 China Ecological Environment Status Bulletin 2021(Excerpt) [J]. Environmental Protection, 2022, 500(12): 61-74(in Chinese)
[4] 辛华荣, 朱广伟, 王雪松, 等. 2009—2018年太湖湖泛强度变化及其影响因素[J]. 环境科学, 2020, 41(11): 4914-4923 XIN Huarong, ZHU Guangwei, WANG Xuesong, et al. Variation and driving factors of black water event intensity in Lake Taihu during 2009 to 2018[J]. Environmental Science, 2020, 41(11): 4914-4923(in Chinese)
[5] 刘新宇, 张博文, 崔政伟. 新型静态混合器强化臭氧水产生羟基自由基[J]. 食品与机械, 2021, 37(11):1-5, 240 LIU Xinyu, ZHANG Bowen, CUI Zhengwei. Enhancing hydroxyl radical production in ozone water by new type static mixer[J]. Food & Machinery, 2021, 37(11):1-5, 240(in Chinese)
[6] PLUMMER J D, EDZWALD J K. Effect of ozone on disinfection by-product formation of algae[J]. Water Science and Technology, 1998, 37(2): 49-55
[7] 刘仲明, 陈伟兴, 封伟, 等. 臭氧高级氧化技术在废水处理中的研究进展[J]. 染料与染色, 2021, 58(4): 57-61, 54 LIU Zhongming, CHEN Weixing, FENG Wei, et al. Research progress of advanced ozonation technology in wastewater treatment[J]. Dyestuffs and Coloration, 2021, 58(4): 57-61, 54(in Chinese)
[8] CORAL L A, ZAMYADI A, BARBEAU B, et al. Oxidation of Microcystis aeruginosa and Anabaena flos-aquae by ozone: Impacts on cell integrity and chlorination by-product formation[J]. Water Research, 2013, 47(9): 2983-2994
[9] 武钦凯, 夏霆, 陶巍, 等. 臭氧对河道典型藻类的影响研究[J]. 环境污染与防治, 2018, 40(8): 913-916 WU Qinkai, XIA Ting, TAO Wei, et al. Effect of ozone on typical algae in river[J]. Environmental Pollution and Control, 2018, 40(8):913-916(in Chinese)
[10] 陈悦, 崔政伟. 高浓度臭氧水对巨大芽孢杆菌的杀菌效果及动力学模型[J]. 包装与食品机械, 2020, 38(1): 1-7 CHEN Yue, CUI Zhengwei. Effect and kinetic models of high concentration ozone water on inactivation of bacillus megaterium[J]. Packaging and Food Machinery, 2020, 38(1): 1-7(in Chinese)
[11] 何华名, 栗亚飞, 耿鑫辉, 等. 不同制备方式臭氧水溶解规律及喷雾特性研究[J]. 沈阳农业大学学报, 2013, 44(5): 678-682 HE Huaming, LI Yafei, GENG Xinhui, et al. On different ozone water generation systems and its spray characteristics[J]. Journal of Shenyang Agricultural University (Social and Edition), 2013, 44(5): 678-682(in Chinese)
[12] 代淑文, 冯德仁. 宽带电磁场除藻技术的试验研究[J]. 电气工程学报, 2020, 15(1): 110-116 DAI Shuwen, FENG Deren. Experimental study of algae removal technology with broadband electromagnetic field[J]. Journal of Electrical Engineering, 2020, 15(1): 110-116(in Chinese)
[13] WANG W, FAN W, HUO M, et al. Hydroxyl radical generation and contaminant removal from water by the collapse of microbubbles under different hydrochemical conditions[J]. Water, Air, & Soil Pollution, 2018, 229(3): 86
[14] MATOUKE M M, ELEWA D T, ABDULLAHI K. Binary effect of titanium dioxide nanoparticles (nTiO₂) and phosphorus on microalgae (Chlorella 'Ellipsoides Gerneck, 1907)[J]. Aquatic Toxicology, 2018, 198: 40-48
[15] 蒋丽春, 唐绍明, 游青, 等. 靛蓝二磺酸钠褪色分光光度法测定水中臭氧[J]. 理化检验-化学分册, 2011, 47(2): 180-182 JIANG Lichun, TANG Shaoming, YOU Qing, et al. Spectrophotometric determination of ozone in water by the color-fading reaction of sodium indigo disulfonate[J]. Physical Testing and Chemical Analysis (Part B: Chemical Analysis), 2011, 47(2): 180-182(in Chinese)
[16] 卢凤华, 陈滢, 刘敏, 等. 靛蓝二磺酸钠分光光度法和碘滴定法测定水中臭氧含量适用条件的比较[J]. 理化检验-化学分册, 2014, 50(6): 778-780 LU Fenghua, CHEN Ying, LIU Min, et al. Comparison of suitable conditions for determination of ozone content in water by Indigo disulfonate sodium spectrophotometry and iodine titration[J]. Physical Testing and Chemical Analysis Part B: Chemical Analysis, 2014, 50(6): 778-780 (in Chinese)
[17] 缪恒锋. 太湖富营养化水体中典型污染物的臭氧氧化研究[D]. 江苏无锡: 江南大学, 2008 MIAO Hengfeng. Study on ozone oxidation of typical pollutants in eutrophic water of Taihu Lake[D]. Jiangsu Wuxi: Jiangnan University, 2008 (in Chinese)
[18] 杨茂林, 刘新宇, 马威, 等. 光催化辅助高浓度臭氧循环工艺降解对氯苯酚及协同机理[J]. 化学工业与工程, 2021, 38(4): 64-72 YANG Maolin, LIU Xinyu, MA Wei, et al. Degradation of p-chlorophenol with high-concentration ozone cycle assisted by photocatalysis and its synergy mechanism[J]. Chemical Industry and Engineering, 2021, 38(4): 64-72(in Chinese)
[19] HUBER M M, CANONICA S, PARK G Y, et al. Oxidation of pharmaceuticals during ozonation and advanced oxidation processes[J]. Environmental Science & Technology, 2003, 37(5): 1016-1024
[20] VOLK C, ROCHE P, JORET J C, et al. Comparison of the effect of ozone, ozone-hydrogen peroxide system and catalytic ozone on the biodegradable organic matter of a fulvic acid solution[J]. Water Research, 1997, 31(3): 650-656
[21] 汪小雄, 姜成春, 朱佳, 等. 臭氧灭活水中铜绿微囊藻影响因素研究[J]. 中国环境科学, 2012, 32(4):653-658 WANG Xiaoxiong, JIANG Chengchun, ZHU Jia, et al. Effect of various factors on ozone inactivating Microcystis aeruginosa in water[J]. China Environmental Science, 2012, 32(4):653-658(in Chinese)
[22] GONZÁLEZ-CAMEJO J, APARICIO S, RUANO M V, et al. Effect of ambient temperature variations on an indigenous microalgae-nitrifying bacteria culture dominated by Chlorella[J]. Bioresource Technology, 2019, 290: 121788
[23] HUANG X, QUAN X, CHENG W, et al. Enhancement of ozone mass transfer by stainless steel wire mesh and its effect on hydroxyl radical generation[J]. Ozone: Science & Engineering, 2020, 42(4): 347-356
[24] 林晓璇, 王如意. 臭氧/过硫酸氢钾体系降解酮洛芬的动力学研究[J]. 广州化工, 2022, 50(6): 55-57, 71 LIN Xiaoxuan, WANG Ruyi. Study on ketoprofen degradation kinetics under ozone/potassium peroxy monosulfate[J]. Guangzhou Chemical Industry, 2022, 50(6): 55-57, 71(in Chinese)