[1]庄海峰,詹萧颖.磁性炭对好氧活性污泥降解2,4,6-三氯酚的强化作用[J].浙江科技学院学报,2023,(06):550-558.[doi:10.3969/j.issn.1671-8798.2023.06.011 ]
 ZHUANG Haifeng,ZHAN Xiaoying.Enhancement effect of magnetic carbon on degradation of 2, 4, 6-trichlorophenol by aerobic activated sludge[J].,2023,(06):550-558.[doi:10.3969/j.issn.1671-8798.2023.06.011 ]
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磁性炭对好氧活性污泥降解2,4,6-三氯酚的强化作用(/HTML)
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《浙江科技学院学报》[ISSN:1001-3733/CN:61-1062/R]

卷:
期数:
2023年06期
页码:
550-558
栏目:
出版日期:
2024-01-01

文章信息/Info

Title:
Enhancement effect of magnetic carbon on degradation of 2, 4, 6-trichlorophenol by aerobic activated sludge
文章编号:
1671-8798(2023)06-0550-09
作者:
庄海峰詹萧颖
(浙江科技学院 环境与资源学院,杭州 310023)
Author(s):
ZHUANG Haifeng ZHAN Xiaoying
(School of Environment and Resources, Zhejiang University of Science and Technology, Hangzhou 310023, Zhejiang, China)
关键词:
好氧活性污泥 磁性炭 246-三氯酚 强化
分类号:
X703
DOI:
10.3969/j.issn.1671-8798.2023.06.011
文献标志码:
A
摘要:
【目的】酚类化合物属于原生质毒物,且难以生物降解,它的存在增加了生物处理的难度,成为废水处理的技术难点之一。为探究磁性炭对好氧活性污泥降解2,4,6-三氯酚的强化作用,分析了磁性炭对环境条件、系统运行稳定性及污染物去除率的影响。【方法】首先对新型磁性炭形态及物理特性进行分析,其次探究了磁性炭对好氧环境的影响,再次讨论了磁性炭对好氧污泥处理性能的影响,最后阐述了磁性炭对好氧污泥的影响。试验设置2个序批式活性污泥法(sequencing batch reactor activated sludge process,SBR)反应器:R1(SBR反应器1)为试验组,加入磁性炭材料; R2(SBR反应器2)为对照组,不加磁性炭材料。【结果】R1中pH值从8.20降为6.89,R2中pH值从7.90降为5.69,表明外加磁性炭能减缓活性污泥系统酸化; R1、R2组2,4,6-三氯酚的去除率分别约为90%和70%,化学需氧量(chemical oxygen demand,COD)去除率分别约为70%和54%,说明磁性炭不仅强化了2,4,6-三氯酚好氧降解效果,还提高了其彻底去除程度; 生物量分别为5.54 g/L和3.75 g/L,污泥体积指数(sludge volume index,SVI)分别为32 mL/g和45 mL/g,说明磁性炭材料能增强活性污泥的生物量和沉降性能。另外,磁性炭材料能提高溶解氧(dissolved oxygen,DO)浓度,增强系统的导电性,提高活性污泥胞外多聚物(extracellular polymeric substances,EPS)含量,促进好氧污泥颗粒化,增强系统的抗冲击能力,使其更稳定地运行。【结论】本研究结果为磁性炭强化好氧污泥降解2,4,6-三氯酚提供了理论依据。

参考文献/References:

[1] ZHAO L, XIAO D L, LIU Y, et al. Biochar as simultaneous shelter, adsorbent, pH buffer, and substrate of Pseudomonas citronellolis to promote biodegradation of high concentrations of phenol in wastewater[J].Water Research,2020,172(5):65.
[2] CHEN T M, ZOU C,CHEN F, et al. Response of 2, 4, 6-trichlorophenol-reducing biocathode to burial depth in constructed wetland sediments[J].Journal of Hazardous Materials,2022,426(3):1012.
[3] LIU X Y, PEI Q Q, HAN H Y, et al. Functional analysis of extracellular polymeric substances(EPS)during the granulation of aerobic sludge:relationship among EPS, granulation and nutrients removal[J].Environmental Research,2022,208(21):29.
[4] 李智灵,陈雪琪,顾思文,等.电气石负载聚氨酯泡沫作为生物载体强化2,4,6-三氯苯酚还原[J].环境科学学报,2020,40(10):3696.
[5] 张文韬,罗晓飞.顶空固相微萃取-气相色谱法同时测定饮用水中2,4-二氯酚、2,4,6-三氯苯酚、五氯酚[J].预防医学情报杂志,2021,37(8):1159.
[6] WANG C, WEI W, DAI X H, et al. Calcium peroxide significantly enhances volatile solids destruction in aerobic sludge digestion through improving sludge biodegradability[J].Bioresource Technology,2022,346(7):161.
[7] QIN X, WANG Z Y, GUO C R, et al. Fulvic acid degradation in Fenton-like system with bimetallic magnetic carbon aerogel Cu-Fe@CS as catalyst:response surface optimization, kinetic and mechanism[J].Journal of Environmental Management,2022,306(4):132.
[8] 徐伟超.零价铁强化煤化工废水厌氧降解机制研究[D].北京:中国矿业大学,2021.
[9] 施俊.生物炭基复合材料去除水中有机污染物研究[D].扬州:扬州大学,2021.
[10] 庄海峰,谢巧娜,唐浩杰,等.磁性材料强化厌氧工艺处理有机废水的研究进展[J].化工进展,2021,40(7):3976.
[11] 王希诚,高乃云.臭氧过氧化氢降解2,4,6-三氯苯酚的多因素影响[J].净水技术,2022,41(5):30.
[12] 翟宏亮.生物电化学系统还原降解2,4,6-三氯苯酚的效能研究[D].哈尔滨:哈尔滨工业大学,2020.
[13] CHEN Y J, MA R, PU X C, et al. The characterization of a novel magnetic biochar derived from sulfate-reducing sludge and its application for aqueous Cr(Ⅵ)removal through synergistic effects of adsorption and chemical reduction[J].Chemosphere,2022,308(8):19.
[14] ZHOU L L, ZHANG S S, LI Z J, et al. Efficient degradation of phenol in aqueous solution by catalytic ozonation over MgO/AC[J].Journal of Water Process Engineering,2020,36(2):1371.
[15] 李明润.含典型酚类化合物废水微生物降解工艺调控及运行研究[D].济南:济南大学,2020.
[16] ZHAO L, XIAO D L, LIU Y, et al. Biochar as simultaneous shelter, adsorbent, pH buffer, and substrate of Pseudomonas citronellolis to promote biodegradation of high concentrations of phenol in wastewater[J].Water Research,2020,172(5):65.
[17] JI Y T, YU H T, CAO R J, et al. Promoting the granulation process of aerobic sludge via a sustainable strategy of effluent reflux in view of AHLs-mediated quorum sensing[J].Journal of Environmental Management,2022,303(6):14.
[18] SADJADI S, KOOHESTANI F. Composite of magnetic carbon quantum dot-supported ionic liquid and Cu-BDC(CCDC no.687690)MOF:a triple catalytic composite for chemical transformations[J].Journal of Solid State Chemistry,2022,308(3):134.
[19] LIANG J H, WANG Q H, LIQ X, et al. Aerobic sludge granulation in shale gas flowback water treatment:assessment of the bacterial community dynamics and modeling of bioreactor performance using artificial neural network[J].Bioresource Technology,2020,313(5):249.
[20] ZHU X Y, QIAO D, YANG L R, et al. NOVEL magnetic carbon supported molybdenum disulfide catalyst and its application in residue upgrading[J].Green Energy & Environment,2021,6(6):952.
[21] 吕利丰.乙酸钠强化好氧活性污泥降解苯酚废水效果及影响因素研究[D].武汉:华中科技大学,2021.

备注/Memo

备注/Memo:
收稿日期:2022-12-02
基金项目:浙江省重点研发计划项目(2020C01017); 国家自然科学基金项目(51708505)
通信作者:庄海峰(1984— ),男,黑龙江省牡丹江人,副教授,博士,主要从事废水处理和废弃物资源化研究。E-mail:zhuanghaifeng1984@163.com。
更新日期/Last Update: 2023-12-31