[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:
2024-01-05

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:

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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