混凝-臭氧氧化对渗滤液生化出水有机微污染物的去除效果

doi:10.16085/j.issn.1000-6613.2024-0586

化工进展 ›› 2024, Vol. 43 ›› Issue (S1): 545-554.DOI: 10.16085/j.issn.1000-6613.2024-0586

混凝-臭氧氧化对渗滤液生化出水有机微污染物的去除效果

刘青晨¹(), 王华伟¹(), 刘荣稳¹, 邹融雪¹, 占美丽², 王亚楠¹, 孙英杰¹, 夏正启³, 单斌¹

^1.青岛理工大学环境与市政工程学院，山东青岛 266520
^2.青岛市固体废弃物处置有限责任公司，山东青岛 266041
^3.青岛水务集团有限公司，山东青岛 266100

收稿日期:2024-04-09 修回日期:2024-07-15 出版日期:2024-11-20 发布日期:2024-12-06
通讯作者: 王华伟
作者简介:刘青晨（1999—），女，硕士研究生，研究方向为渗滤液处理处置。E-mail：1758016547@qq.com。
基金资助:
国家自然科学基金(51908304);山东省自然科学基金(ZR2023ME042)

Efficiency of coagulation-ozone oxidation on the removal of organic micropollutants from biotreated leachate

LIU Qingchen¹(), WANG Huawei¹(), LIU Rongwen¹, ZOU Rongxue¹, ZHAN Meili², WANG Yanan¹, SUN Yingjie¹, XIA Zhengqi³, SHAN Bin¹

^1.School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, Shandong, China
^2.Municipal Solid Waste Management and Treatment Co. , Ltd. , Qingdao 266041, Shandong, China
^3.Qingdao Water Group Co. , Ltd. , Qingdao 266100, Shandong, China

Received:2024-04-09 Revised:2024-07-15 Online:2024-11-20 Published:2024-12-06
Contact: WANG Huawei

摘要/Abstract

摘要：

为了探究混凝-臭氧氧化技术对渗滤液生化出水中有机微污染物的去除效能，以青岛某渗滤液生化出水为实验对象，分析了混凝剂种类、投加量及pH等因素对有机物的去除效果，研究了O₃、GAC/O₃、UV/O₃臭氧氧化体系对混凝出水去除效果的提升作用，进一步系统评估了混凝-臭氧氧化技术对渗滤液生化出水中抗生素类有机微污染物的去除效能。结果表明，当聚合硫酸铁（PFS）投加量为4g/L、pH=7、臭氧流量为80mg/min、反应30min时，PFS-UV/O₃对COD和色度（CN）的去除率分别为86.27%和99.06%，显著优于PFS-O₃和PFS-GAC/O₃；在最优条件下，混凝-臭氧氧化抗生素具有良好的去除效果，PFS-UV/O₃对氧氟沙星、恩诺沙星、磺胺胍、金霉素的去除率分别为100%、95.06%、100%和100%；三维荧光-平行因子分析可知，经PFS-UV/O₃处理后渗滤液生化出水中腐殖类荧光物质特征峰消失，得以有效分解；技术经济分析可知，PFS-UV/O₃处理技术的能源消耗和成本分别为75.34kW·h/kg COD和53.00CNY/kg COD。整体而言，PFS-UV/O₃处理技术经济可行，具有潜在的应用前景。

关键词: 渗滤液生化出水, 混凝, 臭氧, 抗生素, 三维荧光光谱, 去除效能

Abstract:

In order to explore the removal efficiency of coagulation-ozone oxidation technology on organic micro pollution in biotreated leachate, the biotreated leachate in Qingdao was taken as the experimental object, and the impact factors such as coagulant type, dosage and pH on organic matter on pollutant removal were analyzed. The enhancement effect of O₃, GAC/O₃ and UV/O₃ozone oxidation systems on the removal effect of coagulant effluent were investigated. Further, the efficiency of coagulation-ozonation technology on the removal of antibiotic organic micropollutants from biotreated leachate was systematically evaluated. The results showed that with the dosage of polyferric sulfate (PFS) of 4g/L, pH=7, ozone flow rate of 80mg/min, and the reaction time of 30min, the removal efficiencies of COD and chroma (CN) of PFS-UV/O₃ are 86.27% and 99.06%, respectively, which are significantly better than PFS-O₃ and PFS-GAC/O₃. Under optimal conditions, coagulation-ozonation on antibiotics removal had good performance, removal rates of ofloxacin, enrofloxacin, sulfaguanidine and chlortetracycline during PFS-UV/O₃ process were 100%, 95.06%, 100% and 100%, respectively. Three-dimensional fluorescence parallel factor analysis showed that the characteristic peaks of humus fluorescent substances in biotreated leachate disappeared and decomposed effectively after PFS-UV/O₃ treatment. According to the technical and economic analysis, the energy consumption and cost of PFS-UV/O₃ treatment technology were 75.34kW·h/kg COD and 53.00CNY/kg COD, respectively. On the whole, PFS-UV/O₃ treatment technology was economically feasible and had potential application prospects.

Key words: biotreated leachate, coagulation, ozone, antibiotic, three-dimensional fluorescence parallel factor, removal capability

中图分类号:

刘青晨, 王华伟, 刘荣稳, 邹融雪, 占美丽, 王亚楠, 孙英杰, 夏正启, 单斌. 混凝-臭氧氧化对渗滤液生化出水有机微污染物的去除效果[J]. 化工进展, 2024, 43(S1): 545-554.

LIU Qingchen, WANG Huawei, LIU Rongwen, ZOU Rongxue, ZHAN Meili, WANG Yanan, SUN Yingjie, XIA Zhengqi, SHAN Bin. Efficiency of coagulation-ozone oxidation on the removal of organic micropollutants from biotreated leachate[J]. Chemical Industry and Engineering Progress, 2024, 43(S1): 545-554.

图/表 10

参考文献 35

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水平	混凝剂剂量（A）/g·L^-1	pH（B）
1	3.0	6.0
2	4.0	7.0
3	5.0	8.0
4	6.0	9.0

水平	混凝剂剂量（A）/g·L^-1	pH（B）
1	3.0	6.0
2	4.0	7.0
3	5.0	8.0
4	6.0	9.0

项目	峰A	峰B	峰C	峰D	峰E
生化出水原液	4008.12	8712.91	7603.74	7217.25	14971.22
PFS出水	3547.68	10479.82	3544.41	3269.41	14918.22
PFS-O₃	50.07	1152.62	215.77	58.25	3258.46
PFS-GAC/O₃	22.98	878.04	44.38	32.92	1811.36
PFS-UV/O₃	8.49	119.20	43.68	18.58	460.41

项目	峰A	峰B	峰C	峰D	峰E
生化出水原液	4008.12	8712.91	7603.74	7217.25	14971.22
PFS出水	3547.68	10479.82	3544.41	3269.41	14918.22
PFS-O₃	50.07	1152.62	215.77	58.25	3258.46
PFS-GAC/O₃	22.98	878.04	44.38	32.92	1811.36
PFS-UV/O₃	8.49	119.20	43.68	18.58	460.41

技术	渗滤液样品	COD /mg·L^-1	COD去除率 /%	CN	CN去除率 /%	诺氟沙星 /ng·L^-1	诺氟沙星去除率/%	参考文献
O₃	渗滤液	—	—	—	—	625.8	100	[29]
垃圾填埋场生物反应器	渗滤液	2176	56.32	—	—	840.25	~80	[30]
nFe₃O₄-O₃	渗滤液生化出水	—	—	0.19	89.80	—	—	[31]
PFS出水	渗滤液生化出水	845	55.62	0.36	79.74	0.008	67.54	本研究
PFS-UV/O₃	渗滤液生化出水	845	81.07	0.36	99.66	0.008	90.17	本研究

混凝-臭氧氧化对渗滤液生化出水有机微污染物的去除效果

Efficiency of coagulation-ozone oxidation on the removal of organic micropollutants from biotreated leachate

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图/表 10

参考文献 35

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Metrics

本文评价

技术	能耗 /kW·h·(kg COD)^-1	成本 /CNY·(kg COD)^-1	参考文献
混凝-O₃/H₂O₂-BAF	86.25	64.28	[18]
紫外线/超声波/过-硫酸盐	86	54.80	[32]
GAC-O₃/H₂O₂	—	76.38	[33]
O₃/H₂O₂	82.65	—	[34]
臭氧氧化	—	103.06	[35]
PFS-O₃	73.34	49.36	本研究
PFS-UV/O₃	76.69	53.12	本研究

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