ADSORPTION PERFORMANCE OF DISSOLVED ORGANIC MATTER BY IRON-MODIFIED ACTIVATED CARBON FROM SECONDARY EFFLUENT OF WASTEWATER TREATMENT PLANTS

XU Jiarui; LIU Hao; LUAN Weihao; WANG Chao; LIU Changqing; YANG Yandong

doi:10.13205/j.hjgc.202403008

Volume 42 Issue 3

Mar. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(3): 67-72

XU Jiarui, LIU Hao, LUAN Weihao, WANG Chao, LIU Changqing, YANG Yandong. ADSORPTION PERFORMANCE OF DISSOLVED ORGANIC MATTER BY IRON-MODIFIED ACTIVATED CARBON FROM SECONDARY EFFLUENT OF WASTEWATER TREATMENT PLANTS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(3): 67-72. doi: 10.13205/j.hjgc.202403008

Citation:

XU Jiarui, LIU Hao, LUAN Weihao, WANG Chao, LIU Changqing, YANG Yandong. ADSORPTION PERFORMANCE OF DISSOLVED ORGANIC MATTER BY IRON-MODIFIED ACTIVATED CARBON FROM SECONDARY EFFLUENT OF WASTEWATER TREATMENT PLANTS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(3): 67-72. doi: 10.13205/j.hjgc.202403008

Citation:

XU Jiarui, LIU Hao, LUAN Weihao, WANG Chao, LIU Changqing, YANG Yandong. ADSORPTION PERFORMANCE OF DISSOLVED ORGANIC MATTER BY IRON-MODIFIED ACTIVATED CARBON FROM SECONDARY EFFLUENT OF WASTEWATER TREATMENT PLANTS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(3): 67-72. doi: 10.13205/j.hjgc.202403008

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ADSORPTION PERFORMANCE OF DISSOLVED ORGANIC MATTER BY IRON-MODIFIED ACTIVATED CARBON FROM SECONDARY EFFLUENT OF WASTEWATER TREATMENT PLANTS

doi: 10.13205/j.hjgc.202403008

1. School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China;
2. Qingdao Water Group Environmental Energy Co., Ltd., Qingdao 266002, China

Received Date: 2023-05-19
Available Online: 2024-05-31

Abstract

Abstract

In this study, coal-based activated carbon (AC) was iron-modified using the immersion method. The effectiveness of iron-modified activated carbon (Fe-AC) in adsorbing dissolved organic matter (DOM) from the secondary effluent of wastewater treatment plants was investigated. EDS, XRD, and FTIR confirmed that iron was successfully loaded onto the activated carbon in the form of Fe₂O₃. After modification, the surface area of activated carbon increased by 29.3%. The Fe-AC exhibited good capacity for adsorbing the DOM in secondary effluent, with DOC removal efficiencies of 50.0% to 63.5% and UV₂₅₄ removal efficiencies of 71.3% to 88.2%, both significantly higher than AC. The adsorption of DOM by Fe-AC was well described by a modified Freundlich isotherm. In addition, Fe-AC presented good adsorption performance for NO₃^- and PO₄^3-, with removal efficiencies of 55.4% and 76.5%, respectively. The three-dimensional fluorescence spectrum and UV-visible absorption spectrum indicated that the DOM in secondary effluent is dominated by humic substances produced in microbial metabolism, and these organic components can be effectively adsorbed by Fe-AC. In conclusion, Fe-AC adsorption is an effective technology for advanced wastewater treatment.
- activated carbon,
- iron-modification,
- dissolved organic matter,
- adsorption

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References(18)

References

[1]	单威, 王燕, 郑凯凯, 等. 高工业废水占比城镇污水处理厂COD提标技术比选与分析[J]. 环境工程, 2020, 38(7):32-37 , 24.
[2]	杨文澜, 潘丙才, 张淑娟, 等. 污水二级出水有机物(EfOM)的组成、性质及处理技术[J]. 水处理技术, 2013, 39(5):1-6.
[3]	刘通, 孙贤波, 刘勇弟. 活性炭吸附对生化出水中不同种类有机物的去除效果[J]. 环境化学, 2009, 28(3):369-372.
[4]	王保贵. 污水深度处理方法去除二级出水有机物(EfOM)的效能及其缓解超滤膜污染研究[D]. 北京:北京工业大学, 2013.
[5]	王东红. 吸附剂强化混凝去除污水处理厂二级出水中污染物的研究[D]. 哈尔滨:哈尔滨工业大学, 2020.
[6]	关永年, 刘洪波, 黄剑虹, 等. 污水处理厂二级出水粉末活性炭深度处理试验[J]. 净水技术, 2022, 41(4):61-65.
[7]	SULTANA M, ROWNOK M H, SABRIN M, et al. A review on experimental chemically modified activated carbon to enhance dye and heavy metals adsorption[J]. Cleaner Engineering and Technology, 2022, 6:100382.
[8]	张绍均, 陈毅贞, 张文生, 等. 三氯化铁改性活性炭对水中甲苯胺蓝的吸附[J].环境与健康杂志, 2020, 37(2):168-172.
[9]	国家环境保护总局《水和废水监测分析方法》编委会. 水和废水监测分析方法[M]. 4版. 北京:中国环境科学出版社, 2002.
[10]	REN Z J, JIA B, ZHANG G M, et al. Study on adsorption of ammonia nitrogen by iron-loaded activated carbon from low temperature wastewater[J]. Chemosphere, 2021, 262:127895.
[11]	ZHOU J H, MA F, GUO H J. Adsorption behavior of tetracycline from aqueous solution on ferroferric oxide nanoparticles assisted powdered activated carbon[J]. Chemical Engineering Journal, 2020, 384:123290.
[12]	李欣雅. 改性活性炭对石化污水处理厂反渗透浓水有机物吸附去除特性研究[D]. 北京:北京化工大学, 2022.
[13]	LOMPE K M, MENARD D, BARBEAU B. The influence of iron oxide nanoparticles upon the adsorption of organic matter on magnetic powdered activated carbon[J]. Water Research, 2017, 123:30-39.
[14]	陆燕勤, 朱丽, 何昭菊, 等. 沸石负载氧化铁吸附剂吸附除磷研究[J]. 环境工程, 2015, 33(4):48-52.
[15]	王诗慧, 刘鹰, 李双, 等. 载铁活性炭对水中低浓度磷酸盐的吸附去除效果[J]. 大连海洋大学学报, 2022, 37(2):276-284.
[16]	祝鹏, 廖海清, 华祖林, 等. 平行因子分析法在太湖水体三维荧光峰比值分析中的应用[J]. 光谱学与光谱分析, 2012, 32(1):152-156.
[17]	王斌, 黄廷林, 李楠, 等. 水源水库沉积物及其上覆水DOM光谱特征[J]. 中国环境科学, 2022, 42(3):1309-1317.
[18]	张岚欣, 董俊, 刘鲁建, 等. 湖北省某市政污水处理厂提标改造工程设计[J]. 环境工程, 2023, 41(增刊1):171-173, 178.