堆存陈化中电解锰渣重金属形态及环境风险演化

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (0 KB) HTML (1 KB)
输出: BibTeX | EndNote (RIS)

摘要为了探究电解锰渣堆存陈化过程对其重金属赋存形态及环境风险演化的影响规律，采用XRF、XRD和SEM等微观试验对比分析了新鲜与陈化电解锰渣的易溶盐含量、化学成分、微观形貌和相变组成等微观特性差异.此外，基于批次浸出试验和改进BCR顺序提取法评估了新陈电解锰渣中重金属和氨氮的环境风险.结果表明，在堆存陈化过程中，电解锰渣的微观结构呈松散演化，易溶盐含量由12.25%降低至4.38%，酸溶态和可还原态重金属占比逐渐减少，重金属Mn由超高风险降低至中风险，但重金属总量仍高达3.28×10⁴mg/kg，环境风险严峻，氨氮浸出量虽有所降低，但仍然超出15.00mg/L阈值的2.54~3.84倍，部分氨氮和重金属在堆存过程中释放到周围生态中，需采取必要措施对电解锰渣进行处理.

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	聂霄悍
	雷学文
	刘磊
	张先伟
	陈亿军

关键词 ：电解锰渣, 堆存陈化, 重金属形态, 浸出毒性, 环境风险

Abstract：In order to clarify the influence of the storage process on the speciation and environmental risk evolution of heavy metals in electrolytic manganese residue, a series of microscopic experiments such as XRF, XRD, and SEM were conducted to compare and analyze the differences in microscopic properties including soluble salt content, chemical composition, microscopic morphology, and phase composition of fresh and aged electrolytic manganese residue. In addition, batch leaching experiments and improved BCR sequential extraction method were used to evaluate the environmental risks of heavy metals and ammonia nitrogen in fresh and aged electrolytic manganese residue. The research findings demonstrate that throughout the in-situ stacking and aging process, the microstructure of electrolytic manganese residue undergoes a transition towards a loose configuration. The content of soluble salts decreases from 12.25% to 4.38%. The proportions of acid-soluble and reducible heavy metals gradually diminish, resulting in the reclassification of manganese from a "very high risk" to a "medium risk" environmental category. However, the total heavy metal content remains notably elevated at 3.28×10⁴mg/kg, thereby posing a significant environmental hazard. Although there has been some reduction in the leaching of ammonia nitrogen, it still exceeds the 15.00mg/L threshold by a factor of 2.54 to 3.84. Furthermore, some ammonia nitrogen and heavy metals are released into the surrounding ecosystem during the stacking and aging process, necessitating the implementation of essential measures for the treatment of electrolytic manganese residue.

Key words： electrolytic manganese residue storage-aging heavy metal speciation leaching toxicity environment risk

收稿日期: 2023-06-19

PACS:

X705

基金资助:国家重点研发计划课题（2022YFC3901204-4）；湖北省杰出青年基金（2021CFA096）

通讯作者: 刘磊,研究员,lliu@whrsm.ac.cn E-mail: lliu@whrsm.ac.cn

作者简介: 聂霄悍(1997-),男,山东泰安人,武汉科技大学硕士研究生,主要研究方向为环境岩土工程.483163324@qq.com.

引用本文:

聂霄悍, 雷学文, 刘磊, 张先伟, 陈亿军. 堆存陈化中电解锰渣重金属形态及环境风险演化[J]. 中国环境科学, 2024, 44(1): 242-250. NIE Xiao-han, LEI Xue-wen, LIU Lei, ZHANG Xian-wei, CHEN Yi-jun. In-situ stacking and aging of electrolytic manganese residue: Speciation of heavy metals and environmental risk evolution. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(1): 242-250.

链接本文:

http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2024/V44/I1/242

[1]	吴建锋,宋谋胜,徐晓虹,等.电解锰渣的综合利用进展与研究展望[J].环境工程学报, 2014,8(7):2645-2652.Wu J F, Song M S, Xu X H, et al.Progress and prospect of comprehensive utilization of electrolytic manganese slag [J].Chinese Journal of Environmental Engineering, 2014,8(7):2645-2652.
[2]	Shu J C, Wu H P, Chen M J, et al.Simultaneous optimizing removal of manganese and ammonia nitrogen from electrolytic metal manganese residue leachate using chemical equilibrium model [J].Ecotoxicology and Environmental Safety, 2019,172,273.
[3]	Shu J C, Li B, Chen M J, et al.An innovative method for manganese (Mn2+) and ammonia nitrogen (NH4+-N) stabilization/solidification in electrolytic manganese residue by basic burning raw material [J].Chemosphere, 2020,253:12686.
[4]	金修齐,黄代宽,赵书晗,等.电解锰渣胶凝固化研究进展及其胶结充填可行性探讨[J].矿物岩石地球化学通报, 2020,39(1):97-103.Jin X Q, Huang D K, Zhao S H, et al.Research progress on solidification of electrolytic manganese slag and feasibility of cemented filling [J].Bulletin of Mineralogy, Petrology and Geochemistry, 2020,39(1):97-103.
[5]	唐文杰,黄江波,余谦,等.锰矿区农作物重金属含量及健康风险评价[J].环境科学与技术, 2015,38(S1):464-468,473.Tang W J, Huang J B, Yu Q, et al.Heavy metal content and health risk assessment of crops in manganese ore area [J].Environmental Science and Technology, 2015,38(S1):464-468,473.
[6]	Fan W, Zhou J L, Zhou Y Z, et al.Heavy metal pollution and health risk assessment of agricultural land in the Southern Margin of Tarim Basin in Xinjiang, China [J].International Journal of Environmental Health Research, 2021,31(7):835-847.
[7]	闫国孟,彭兵,柴立元,等.锰渣的理化特性及煅烧特性[J].中南大学学报(自然科学版), 2015,46(7):2419-2425.Yan G M, Peng B, Chai L Y, et al.Physicochemical properties and calcination characteristics of manganese slag [J].Journal of Central South University (Natural Science Edition), 2015,46(7):2419-2425.
[8]	Zheng F, Zhu H, Luo T, et al.Pure water leaching soluble manganese from electrolytic manganese residue:Leaching kinetics model analysis and characterization [J].Journal of Environmental Chemical Engineering, 2020,8(4),103916.
[9]	Geng H H, Wang F, Yan C C, et al.Leaching behavior of metals from iron tailings under varying pH and low molecular-weight organic acids [J].Journal of Hazard Materials, 2020,383,121136.
[10]	Zhang S H, Zhu N W, Mao F L, et al.A novel strategy for harmlessness and reduction of copper smelting slags by alkali disaggregation of fayalite (Fe2SiO4) coupling with acid leaching [J].Journal of Hazard Materials, 2021,402,123791.
[11]	Lv Y, Li J, Ye H P, et al.Bioleaching of silicon in electrolytic manganese residue (EMR) by Paenibacillus mucilaginosus:impact of silicate mineral structures [J].Chemosphere, 2020,256,127043.
[12]	Sun D, Yang L, Liu N, et al.Sulfur resource recovery based on electrolytic manganese residue calcination and manganese oxide ore desulfurization for the clean production of electrolytic manganese [J].Chinese Journal of Chemical Engineering, 2020,28:864-870.
[13]	Shu J C, Liu R L, Liu Z H, et al.Solidification/stabilization of electrolytic manganese residue using phosphate resource and low-grade MgO/CaO [J].Journal of Hazardous Materials, 2016,317:267-274.
[14]	Tang P P, Zhang W L, Chen Y H, et al.Stabilization/solidification and recycling of sediment from Taihu Lake in China:engineering behavior and environmental impact [J].Waste Management, 2020,116:1-8.
[15]	冉岚,刘少友,文正康.电解锰渣-废玻璃低温烧结制备陶瓷砖的研究[J].无机盐工业, 2014,46(7):56-58.Ran L, Liu S Y, Wen Z K.Study on preparation of ceramic bricks by low temperature sintering of electrolytic manganese slag-waste glass [J].Inorganicchemicalsindustry, 2014,46(7):56-58.
[16]	蒋小花,王智,侯鹏坤,等.用电解锰渣制备免烧砖的试验研究[J].非金属矿, 2010,33(1):14-17.Jiang X H, Wang Z, Hou P K, et al.Experimental study on preparation of sintered brick from electrolytic manganese slag [J].Non-metallic Mines, 2010,33(1):14-17.
[17]	Li X L, Zeng Y, Chen F Y, et al.Synthesis of zeolite from carbothermal reduction electrolytic manganese residue for the removal of macrolide antibiotics from aqueous solution [J].Materials (Basel, Switzerland), 2018,11(11),2133.
[18]	Qiao D, Qiao J S, Wang Q Z, et al.Utilization of sulfate-rich solid wastes in rural road construction in the Three Gorges Reservoir [J].Resources, Conservation & Recycling, 2010,54(12):1368-1376.
[19]	李昌新,喻源,张庆武,等.合成条件对电解锰渣制备沸石过程中沸石种类和性能的影响[J].中南大学学报(自然科学版), 2019,50(12):2932-2937.Li C X, Yu Yuan, Zhang Q W, et al.Effect of synthesis conditions on the types and properties of zeolite during the preparation of zeolite from electrolytic manganese slag [J].Journal of Central South University (Natural Science Edition), 2019,50(12):2932-2937.
[20]	王海成,金娇,刘帅,等.环境友好型绿色道路研究进展与展望[J].中南大学学报(自然科学版), 2021,52(7):2137-2169.Wang H C, Jin J, Liu S, et al.Research progress and prospect of environment-friendly green road [J].Journal of Central South University (Natural Science Edition), 2021,52(7):2137-2169.
[21]	郭凌志,周梅,王丽娟,等.煤基固废地聚物注浆材料的制备及性能[J].建筑材料学报, 2022,25(10):1092-1100.Guo L Z, Zhou M, Wang L J, et al.Preparation and properties of coal-based solid waste polymer grouting materials [J].Journal of Building Materials, 2022,25(10):1092-1100.
[22]	倪文,李颖,许成文,等.矿渣-电炉还原渣全固废胶凝材料的水化机理[J].中南大学学报(自然科学版), 2019,50(10):2342-2351.Ni W, Li Y, Xu C W, et al.Hydration mechanism of solid waste gelled material from slag-electric furnace reduction slag [J].Journal of Central South University (Natural Science Edition), 2019,50(10):2342-2351.
[23]	张先伟,高永红,王平,等.电解锰渣-生活垃圾焚烧底渣协同制备路面基层材料试验研究[J].硅酸盐通报, 2023,42(4):1363-1373.Zhang X W, Gao Y H, Wang P, et al.Experimental study on synergistic preparation of pavement base material by electrolytic manganese slag and solid waste incineration bottom slag [J].Bulletin of Silicate, 2019,42(4):1363-1373.
[24]	Chen H L, Long Q, Zhang Y T, et al.Simultaneous immobilization of NH4+ and Mn2+ from electrolytic manganese residue using phosphate and magnesium sources [J].RSC Advances, 2019,6;9(8):4583-4590.
[25]	Shu J C, Chen M J, Wu H P, et al.An innovative method for synergistic stabilization/solidification of Mn2+, NH4+-N, PO43−and F− in electrolytic manganese residue and phosphogypsum [J].Journal of Hazardous Materials, 2019,376:212-222.
[26]	李艳.贵州某电解锰渣库电解锰渣固废特征研究及其对周边生态环境影响评价[D].绵阳:西南科技大学, 2022.Li Y.Study on solid waste characteristics of electrolytic manganese slag in a Guizhou electrolytic manganese slag storage and its impact on the surrounding ecological environment [D].Mianyang:Southwest University of Science and Technology, 2022.
[27]	Li C X, Zhong H, Wang S, et al.Leaching behavior and risk assessment of heavy metals in a landfill of electrolytic manganese residue in Western Hunan, China [J].Human and Ecological Risk Assessment.2014,20:1249-1263.
[28]	HJ 557-2010固体废物浸出毒性浸出方法水平振荡法[S].HJ 557-2010 Toxicity of solid waste leaching leaching method Horizontal oscillation method [S].
[29]	HJ/T 299-2007固体废物浸出毒性浸出方法硫酸硝酸法[S].HJ/T 299-2007 Toxic leaching method of solid waste, sulfuric acid and nitric acid method [S].
[30]	陈莉薇,陈海英,武君,等.利用Tessier五步法和改进BCR法分析铜尾矿中Cu、Pb、Zn赋存形态的对比研究[J].安全与环境学报, 2020,20(2):735-740.Chen L W, Chen H Y, Wu J, et al.Comparative study on the occurrence forms of Cu, Pb and Zn in copper tailings by Tessier five-step method and improved BCR method [J].Journal of Safety and Environment, 2020,20(2):735-740.
[31]	蓝际荣,李佳,杜冬云,等.锰渣堆肥过程中理化性质及基于Tessier法的重金属行为分析[J].环境工程学报, 2017,11(10):5637-5643.Lan J R, Li J, Du D Y, et al.Physical and chemical properties of manganese residue in composting process and analysis of heavy metal behavior based on Tessier method [J].Journal of Environmental Engineering, 2017,11(10):5637-5643.
[32]	GB 8978-1996污水综合排放标准[S].GB 8978-1996 Comprehensive wastewater discharge standard [S].
[33]	Kim R Y, Yoon J K, Kim T S, et al.Bioavailability of heavy metals in soils:definitions and practical implementation——a critical review [J].Environment Geochemistry Health, 2015,37(6):1041-61.
[34]	Hua C Y, Hou G Z, Yin X, et al.Assessment of heavy metal in coal gangue:distribution, leaching characteristic and potential ecological risk [J].Environmental Science and Pollution Research, 2018,25:32321-32331.
[35]	Ishchenko V.Heavy metals in municipal waste:the content and leaching ability by waste fraction [J].J Environ Sci Health A Tox Hazard Subst Environ Eng, 2019,54(14):1448-1456.
[36]	Zhang Y L, Liu X M, Xu Y T, et al.Preparation of road base material by utilizing electrolytic manganese residue based on Si-Al structure:Mechanical properties and Mn2+ stabilization/solidification characterization [J].Journal of Hazardous Materials, 2020,390, 122188.
[37]	Li C., Zheng L G., Jiang C L, et al.Characteristics of leaching of heavy metals from low-sulfur coal gangue under different conditions [J].International Journal of Coal Science & Technology, 2021,8:780-789.
[38]	Jurgens B C, Parkhurst D L, Belitz K.Assessing the lead solubility potential of untreated groundwater of the united states [J].Environmental Science & Technology, 2019,53(6):3095-3103.
[39]	Ertani A, Mietto A, Borin M, et al.Chromium in agricultural soils and crops:A Review [J].Water Air Soil Pollut, 2017,228,190.
[40]	Awan S A, Ilyas N, Khan I, et al.Bacillus siamensis eeduces cadmium Accumulation and improves growth and antioxidant defense system in two wheat (Triticum aestivum L.) varieties [J].Plants (Basel), 2020,11, 9(7):878.
[41]	Tyagi V K, Bhatia A, Gaur R Z, et al.Effects of multi-metal toxicity on the performance of sewage treatment system during the festival of colors (Holi) in India [J].Environmental Monitoring Assessment, 2012,184(12):7517-29.
[42]	何潇,罗建中,蔡宗岳.微污染水源水中氨氮的危害与现代处理技术[J].工业水处理, 2017,37(4):6-11.He X, Luo J Z, Cai Z Y.Harm of ammonia nitrogen in micro-polluted water source and modern treatment technology [J].Industrial WATER Treatment, 2017,37(4):6-11.