脱硫废水热烟气蒸发过程中挥发性组分迁移转化特性研究进展

doi:10.16085/j.issn.1000-6613.2020-2502

化工进展 ›› 2021, Vol. 40 ›› Issue (S1): 434-438.DOI: 10.16085/j.issn.1000-6613.2020-2502

脱硫废水热烟气蒸发过程中挥发性组分迁移转化特性研究进展

顾丽燕¹(), 董伟钢², 刘峰均¹, 蔡晨健¹, 陈恒¹, 杨林军¹()

^1.东南大学能源热转换及其过程测控教育部重点实验室，江苏南京 210096
^2.绍兴市生态环境局柯桥分局，浙江绍兴 312000

收稿日期:2020-12-15 修回日期:2021-01-08 出版日期:2021-10-25 发布日期:2021-11-09
通讯作者: 杨林军
作者简介:顾丽燕（1996—），女，硕士研究生，研究方向为电厂脱硫废水零排放。E-mail：guliyan1108@foxmail.com。
基金资助:
国家自然科学基金(52076046);中国南方电网有限责任公司科技项目(GDKJXM20183546)

Progress on migration and transformation characteristics of volatile components in hot flue gas evaporation of desulfurization wastewater

GU Liyan¹(), DONG Weigang², LIU Fengjun¹, CAI Chenjian¹, CHEN Heng¹, YANG Linjun¹()

^1.Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, Jiangsu, China
^2.Keqiao Branch of Shaoxing Ecological Environment Bureau, Shaoxing 312000, Zhejiang, China

Received:2020-12-15 Revised:2021-01-08 Online:2021-10-25 Published:2021-11-09
Contact: YANG Linjun

摘要/Abstract

摘要：

脱硫废水中存在挥发性重金属、氨氮、挥发性有机物（VOCs）、氯等挥发性组分。在采用热烟气蒸发时，部分挥发性组分会以气态形式再释放进而导致有在脱硫废水中循环富集的潜在风险。本文基于脱硫废水中挥发性组分来源、赋存形态的分析，探讨了热烟气蒸发过程中挥发性组分的迁移转化行为。挥发性污染组分迁移转化是一个非均相物理化学过程。废水固液相中的挥发性组分可通过纯物理作用或与其他组分发生反应以气态或颗粒态形式析出进入烟气，并进一步与烟气组分发生热分解转化、吸附凝结等作用。当前研究仅认为少量氯会以HCl的形式析出，重金属普遍认为均以颗粒态形式析出，有机物、氨氮则未作关注。迄今还只局限于宏观现象的考察，相关的定量研究十分缺乏。文中指出，在当前不经或只经简单预处理的热烟气蒸发技术逐渐成为电厂脱硫废水零排放主流路线的背景下，脱硫废水蒸发过程中挥发性组分的迁移转化规律的研究显得尤为重要。

关键词: 脱硫废水, 热烟气, 蒸发, 挥发性组分, 迁移转化

Abstract:

There are volatile heavy metals, ammonia nitrogen, VOCs, chlorine and other volatile components in desulfurization wastewater. In the application of hot flue gas evaporation, volatile components will be re-released in the gaseous form, leading to the potential risk of cyclic enrichment in desulfurization wastewater. Based on the analysis of the sources and forms of volatile components in desulfurization wastewater, the migration and transformation of volatile components in hot flue gas evaporation are discussed. The migration and transformation of volatile pollutants is a heterogeneous physicochemical process. The volatile components in the solid or liquid phase of waste water can be separated into flue gas in gaseous or granular form through pure physical action or reaction with other components. Then further pyrolysis conversion, adsorption and condensation with flue gas components will occur. Current researches have shown that only a small amount of chlorine can be precipitated in the form of HCl, while heavy metals are commonly thought to be precipitated in the form of particles. However, organic matters and ammonia nitrogen are not paid attention to. So far, it has only been limited to the investigation of macroscopic phenomena, and the relevant quantitative research is scarce. Under the background that the hot flue gas evaporation technology without or only with simple pretreatment has gradually become the mainstream route of zero discharge of desulfurization wastewater from power plants, the study on the migration and transformation of volatile components in the process of desulfurization wastewater evaporation is particularly important.

Key words: desulfurization wastewater, hot flue gas, evaporation, volatile components, migration and transformation

中图分类号:

X703

顾丽燕, 董伟钢, 刘峰均, 蔡晨健, 陈恒, 杨林军. 脱硫废水热烟气蒸发过程中挥发性组分迁移转化特性研究进展[J]. 化工进展, 2021, 40(S1): 434-438.

GU Liyan, DONG Weigang, LIU Fengjun, CAI Chenjian, CHEN Heng, YANG Linjun. Progress on migration and transformation characteristics of volatile components in hot flue gas evaporation of desulfurization wastewater[J]. Chemical Industry and Engineering Progress, 2021, 40(S1): 434-438.

参考文献 23

1	马双忱, 于伟静, 贾绍广, 等. 燃煤电厂脱硫废水处理技术研究与应用进展[J]. 化工进展, 2016, 35(1): 255-262.
	MA S C, YU J W, JIA S G, et al. Research and application progresses of flue gas desulfurization (FGD) wastewater treatment technologies in coal-fired plants[J]. Chemical Industry and Engineering Progress, 2016, 35(1): 255-262.
2	ZHENG CH, WANG L, ZHANG Y, et al. Partitioning of hazardous trace elements among air pollution control devices in ultra-low-emission coal-fired power plants[J]. Energy & Fuels, 2017, 31(6): 6334-6344.
3	MEIJ R. Trace element behavior in coal-fired power plants[J]. Fuel Processing Technology, 1994, 39(1): 199-217.
4	王珲. 湿法烟气脱硫系统对颗粒物及重金属排放影响的研究[D]. 北京：清华大学， 2010．
	WANG H. Study on the influence of wet flue gas desulfurization system on particulate matter and heavy metal emission[D]. Beijing: Tsinghua University, 2010.
5	STAUDT J E, JOZEEICZ W. Performance and cost of mercury and multipollutant emission control technology applications on electric utility boilers, EPA-600/R-03/110108[R]. Washington DC, USA: EPA, 2003.
6	ÁLVAREZ-AYUSO E, QUEROL X, TOMÁS A. Environmental impact of a coal combustion desulphurisation plant: abatement capacity of desulphurisation process and environmental characterisation of combustion by-products [J]. Chemosphere, 2006, 65: 2009-2017.
7	韩鹏帅. 湿法脱硫废水中汞的稳定性研究[D]. 武汉: 华中科技大学，2016.
	HAN P S. Stability of mercury from simulated wet flue gas desulfurization[D]. Wuhan: Huazhong University of Science and Technology, 2016.
8	OMINE N, ROMERO C E, KIKKAWA H, et al. Study of elemental mercury re-emission in a simulated wet scrubber[J]. Fuel, 2012, 91(1): 93-101.
9	孙明洋. 燃煤电厂脱硫石膏中汞的形态转化规律及稳定化研究[D]. 杭州: 浙江大学, 2015.
	SUN M Y. Speciation transformation characteristics and stabilization of mercury in flue gas desulphurisation(FGD) gypsum[D]. Hangzhou: Zhejiang University, 2015.
10	HU B, YI Y, CAI L, et al. Enhancing mercury removal across air pollution control devices for coal-fired power plants by desulfurization wastewater evaporation[J]. Environmental Technology, 2019, 40(2): 154-162.
11	TENG X J, ROBERT S, BRUCE E. A pilot demonstration of spray dryer evaporation as a method to treat power plant FGD wastewater[R]. Proceedings of the 73rd Annual International Water Conference, 2012.
12	朱振武，禚玉群，安忠义，等. 湿法脱硫系统中痕量元素的分布[J]. 清华大学学报（自然科学版）, 2013, 53(3): 330-335．
	ZHU Z W, ZHUO Y Q, AN Z Y, et al. Trace element distribution during wet flue gas desulfurization system[J]. Journal of Tsinghua University (Science and Technology), 2013, 53(3): 330-335.
13	CORDOBA P. Partitioning and speciation of selenium in wet lime-stone flue gas desulphurisation systems: a review [J]. Fuel, 2017, 202: 184-195.
14	GINGERICH D B, GROL E, MAUTER M S. Fundamental challenges and engineering opportunities in flue gas desulfurization wastewater treatment at coal fired power plants[J]. Environmental Science—Water Research & Technology, 2018, 4(7): 909-925.
15	王丽. 超低排放机组全流程下砷、硒、镉、铬和铅的赋存形态研究[D]. 杭州: 浙江大学， 2018.
	WANG L. Study on the partitioning characteristics of Hg, As, Se and other hazardous elements in ultra low emission coal fired power plants[D]. Hangzhou: Zhejiang University, 2018.
16	CHENG T, ZHOU X C, YANG L J. Transformation and removal of ammonium sulfate aerosols and ammonia slip from selective catalytic reduction in wet flue gas desulfurization system[J]. Journal of Environmental Science, 2019, 88: 72-80.
17	叶春松，操容，梁巍等. 脱硫废水高温烟气蒸发过程中氯盐和铵盐的分解[J]. 发电技术, 2019, 40(4): 362-366.
	YE C S, CAO R, LIANG W, et al. Decomposition of chloride and ammoniate in the evaporation process of desulfurization wastewater with high temperature flue gas[J]. Power Generation Technology, 2019, 40(4): 362-366.
18	SHEN Y, ZHOU C L, ZHANG R. Experimental study on migration characteristics of pollutants in drying desulfurization wastewater[R]. Water Resources and Ecological Carrying Capacity, 2018, 57-62.
19	李津津，陈扉然，马修卫，等. 燃煤有机污染物排放及其控制技术研究展望[J]. 化工进展， 2019, 38(12): 5539-5547.
	LI J J, CHEN F R, MA X W, et al. Emission of coal-fired VOCs and prospect of control technology[J]. Chemical Industry and Engineering Progress, 2019, 38(12): 5539-5547.
20	余化龙.燃煤过程中挥发性有机物排放特征研究[D]. 北京: 华北电力大学, 2018.
	YU H L. Research on emissions characteristics of volatile organic compounds in coal combustion process[D]. Beijing: North China Electric Power Universty, 2018.
21	ZHENG C H, ZHENG H, YANG Z D, et al. Experimental study on the evaporation and chlorine migration of desulfurization wastewater in flue gas[J]. Environmental Science and Pollution Research, 2019, 26(5): 4791-4800.
22	MA S C, CHAI J, WU K, et al. Experimental and mechanism research on volatilization characteristics of HCl in desulfurization wastewater evaporation process using high temperature flue gas[J]. Journal of Industrial and Engineering Chemistry, 2018, 66: 311-317.
23	邓双，张辰，刘宇，等. 基于实测的燃煤电厂氯排放特征[J]. 环境科学研究, 2014, 27(2): 127-133.
	DENG S, ZHANG C, LIU Y, et al. Characteristics of chlorine emission from coal-fired power plants based on measured data[J]. Research of Environmental Sciences, 2014, 27(2): 127-133.

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脱硫废水热烟气蒸发过程中挥发性组分迁移转化特性研究进展

Progress on migration and transformation characteristics of volatile components in hot flue gas evaporation of desulfurization wastewater

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