焦化污泥炭重金属风险及其处理焦化废水研究

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Abstract Coking sludge carbon was prepared from coking sludge. Afterwards, the form transformation and risk assessment of heavy metals in the process of carbonization and modification with nitric acid were studied, and the efficiency of modified coking sludge carbon for coking wastewater treatment was explored. The contents of Cr and Ni in coking sludge (CWS) were much higher than other heavy metals. Coking sludge carbon (CWS-C) was obtained after carbonization and then the modified coking sludge carbon (CWS-C) was obtained after activation. The ecological risk factor (RI) was decreased from 122.79 (CWS) to 33.70 (CWS-N), indicating the low risk of heavy metal pollution in CWS-N. In comparison with CWS-C, CWS-N contained a variety of iron phases (i.e., FeO, Fe₂Al₂O₄, Fe₃O₄ and Fe_0.95C_0.005) which was in favor of the Fe(II)/Fe(III) cycle; thus, CWS-N could effectively catalyze H₂O₂ to produce ·OH, and the removal rate of TOC in coking wastewater was as high as 66.3%. The iron leaching rate of iron, the active component, on CWS-N was less than 0.5%, indicating its superior catalytic stability. The dissolved organic compounds in coking wastewater were mainly lignin, lipids and condensed nucleus compounds, while the compounds contained N or S accounted for 81.1%. Most organic compounds could be removed after catalytic degradation with CWS-N.

Key words： coking wastewater sludge carbon heavy metals catalytic degradation

Received: 16 November 2023

PACS:

X703.1

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	Articles by authors
	YU Li
	YU Xiao-hong
	ZHU Jia-xun
	YAO Yu
	WANG Li
	ZHAO Ying
	WEI Huang-zhao

Cite this article:

YU Li,YU Xiao-hong,ZHU Jia-xun等. Study on the risk of heavy metals in coking sludge carbon and its application in coking wastewater treatment[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(6): 3189-3196.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I6/3189

[1] Meng G, Jiang N, Wang Y, et al. Treatment of coking wastewater in a heterogeneous electro-Fenton system:Optimization of treatment parameters, characterization, and removal mechanism[J]. Journal of Water Process Engineering, 2022,45:102482.
[2] Hou Z, Zhou X, Zhao Z, et al. Advanced aromatic organic compounds removal from refractory coking wastewater in a step-feed three-stage integrated A/O bio-filter:Spectrum characterization and biodegradation mechanism[J]. Journal of Environment Management, 2022,322:116140.
[3] Jiang W X, Zhang W, Li B J, et al. Combined fenton oxidation and biological activated carbon process for recycling of coking plant effluent[J]. Journal of Hazardous Materials, 2011,189(1/2):308-314.
[4] Munoz M, Mora F J, de Pedro Z M, et al. Application of CWPO to the treatment of pharmaceutical emerging pollutants in different water matrices with a ferromagnetic catalyst[J]. Journal of Hazardous Materials, 2017,331:45-54.
[5] Azeem M, Shaheen S M, Ali A, et al. Removal of potentially toxic elements from contaminated soil and water using bone char compared to plant-and bone-derived biochars:A review[J]. Journal of Hazardous Materials, 2022,427:128131.
[6] Chanaka W D, Veksha A, Giannis A, et al. Insights into the speciation of heavy metals during pyrolysis of industrial sludge[J]. Science of the Total Environment, 2019,691:232-242.
[7] Devi P, Saroha A K. Utilization of sludge based adsorbents for the removal of various pollutants:A review[J]. Science of the Total Environment, 2017,578:16-33.
[8] Chen T, Zhang Y X, Wang H T, et al. Influence of pyrolysis temperature on characteristics and heavy metal adsorptive performance of biochar derived from municipal sewage sludge[J]. Bioresource Technology, 2014,164:47-54.
[9] Hakanson L. An ecological risk index for aquatic pollution control.a sedimentological approach[J]. Water Research, 1980,14(8):975-1001.
[10] GB 5085.3-2007危险废物鉴别标准浸出毒性鉴别[S]. GB 5085.3-2007 Indentification standards for hazardous wastes-Indentification for extraction toxicity[S].
[11] 马磊.电催化氧化处理酚类难生物降解有机废水研究[D].大连:中国科学院大连化学物理研究所, 2013. Ma L. Studies on the degradation of biorefractory phenolic or organic effluents by electro-catalytic oxidation processes[D]. Dalian:Dalian Institue of Chemical Physics. Chinese Academy of Sciences, 2013.
[12] Zhang L, Peng Y, Yang J. Transformation of dissolved organic matter during advanced coal liquefaction wastewater treatment and analysis of its molecular characteristics[J]. Science of the Total Environment, 2019,658:1334-1343.
[13] Huang Q, Song S, Chen Z, et al. Biochar-based materials and their applications in removal of organic contaminants from wastewater:state-of-the-art review[J]. Biochar, 2019,1(1):45-73.
[14] Yu L, Liu Y K, Wei H Z, et al. Developing a high-quality catalyst from the pyrolysis of anaerobic granular sludge:Its application for m-cresol degradation[J]. Chemosphere, 2020,255:126939.
[15] Leng L, Xiong Q, Yang L, et al. An overview on engineering the surface area and porosity of biochar[J]. Science of the Total Environment, 2021,763:144204.
[16] Mian M M, Alam N, Ahommed M S, et al. Emerging applications of sludge biochar-based catalysts for environmental remediation and energy storage:A review[J]. Journal of Cleaner Production, 2022,360:132131.
[17] GB 23486-2009城镇污水处理厂污泥处置园林绿化用泥质[S]. GB 23486-2009 The disposal of sludge from municipal wastewater treatment plant-The quality of sludge used in gardens or parks[S].
[18] Chen T, Zhang Y, Wang H, et al. Influence of pyrolysis temperature on characteristics and heavy metal adsorptive performance of biochar derived from municipal sewage sludge[J]. Bioresource Technology, 2014,164:47-54.
[19] Devi P, Saroha A K. Risk analysis of pyrolyzed biochar made from paper mill effluent treatment plant sludge for bioavailability and eco-toxicity of heavy metals[J]. Bioresource Technology, 2014,162(162C):308-315.
[20] Wang X D, Chi Q Q, Liu X J, et al. Influence of pyrolysis temperature on characteristics and environmental risk of heavy metals in pyrolyzed biochar made from hydrothermally treated sewage sludge[J]. Chemosphere, 2019,216:698-706.
[21] Jiang H W, Zeng G M, Chen X H, et al. The migration and transformation behavior of heavy metals during the liquefaction process of sewage sludge[J]. Bioresource Technology:Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies, 2014,167:144-150.
[22] 余丽,刘允康,卫皇曌,等.酸改性颗粒污泥炭催化降解左氧氟沙星机制[J].中国环境科学, 2021,4(10):4695-4702. Yu L, Liu Y K, Wei H Z, et al. Mechanism of the catalytic degradation of levofloxacin by acid-modified granular sludge carbons[J]. China Environmental Science, 2021,41(10):4695-4702.
[23] Wang Y, Wei H, Zhao Y, et al. Low temperature modified sludge-derived carbon catalysts for efficient catalytic wet peroxide oxidation of m-cresol[J]. Green Chemistry, 2017,19(5):1362-1370.
[24] 常宏泽,张峰,蔡士硕,等.焦化污泥基生物炭在氯介质下催化降解间甲酚的性能[J].环境化学, 2024,43(5):1-9. Chang H Z, Zhang F, Cai S S, et al. Catalytic degradation of m-cresol by coking sludge basesd biochar in chloride medium[J]. Environmental Chemistry, 2024,43(5):1-9.
[25] Tao S Y, Liang S, Chen Y, et al. Enhanced sludge dewaterability with sludge-derived biochar activating hydrogen peroxide:synergism of Fe and Al elements in biochar[J]. Water Research, 2020,182:115927.
[26] Gan Q, Hou H, Liang S, et al. Sludge-derived biochar with multivalent iron as an efficient Fenton catalyst for degradation of 4-Chlorophenol[J]. Science of the Total Environment, 2020,725:138299.
[27] Liu X, Huang F, Yu Y, et al. Ofloxacin degradation over Cu-Ce tyre carbon catalysts by the microwave assisted persulfate process[J]. Applied Catalysis B:Environmental, 2019,253:149-159.
[28] Ishii S, Boyer T H. Behavior of reoccurring PARAFAC components in fluorescent dissolved organic matter in natural and engineered systems:A critical review[J]. Environmental Science&Technology, 2012, 46(4):2006-2017.
[29] Yuan R, Qin Y, He C, et al. Fe-Mn-Cu-Ce/Al₂O₃ as an efficient catalyst for catalytic ozonation of bio-treated coking wastewater:Characteristics, efficiency, and mechanism[J]. Arabian Journal of Chemistry, 2023,16(1):104415.