热等离子体处理前后垃圾飞灰中重金属浸出浓度的变化及二恶英分布特性的差异
Leaching toxicity and dioxin distribution characteristics of MSW fly ash by thermal plasma melting
查看参考文献37篇
|
文摘
|
为探究热等离子体处理飞灰工艺工业应用的潜力,分析处理前后飞灰中9种重金属浸出浓度变化及二恶英的分布特性,基于处理量为5 t·d~(-1)的中试规模的热等离子体熔融系统,在1 550 ℃的处理温度下进行了飞灰处理实验。结果表明,不宜使用硫酸硝酸法检测玻璃态渣中As浸出浓度,硫酸根离子会与As在熔融过程中形成的砷酸钙和亚砷酸钙中的钙离子结合,导致As的浸出浓度增加;熔融处理后,除As外的其他重金属的浸出浓度均降至国家标准浓度限值以下;就太原地区而言,其垃圾飞灰中PCDFs的含量高于PCDDs,且低氯代呋喃含量高于高氯代呋喃;熔融处理后的垃圾飞灰中,二恶英毒性当量减少率为99.96%,降至0.546 6 ng·kg~(-1),远低于填埋标准中二恶英排放限值,说明该中试系统能够满足飞灰处理要求。该研究结果可为热等离子体熔融飞灰中试系统的工业应用提供参考。 |
|
其他语种文摘
|
In order to obtain reference data for industrial application of thermal plasma treatment of fly ash, and to study the leaching concentration changes of 9 heavy metals and the distribution characteristics of dioxins. The test was conducted by heating up to 1 550 ℃ through a thermal plasma melting system with a processing capacity of 5 t·d~(-1) on a pilot scale. The results show that it is not appropriate to use the sulfuric acid nitric acid method to detect the As leaching concentration in the glassy slag. Sulfate ions will combine with the calcium arsenate and calcium ions in the calcium arsenite formed during the melting of As, resulting in an increase in the leaching concentration of As; The leaching concentration of other heavy metals except As has fallen below the national standard concentration limit; the content of PCDFs in Taiyuan area is higher than that of PCDDs, and the content of low-chlorinated furans is higher than that of high-chlorinated furans; the reduction rate of dioxin equivalent after melting treatment 99.96%, down to 0.546 6 ng·kg~(-1), which is far lower than the dioxin emission limit in the landfill standard, indicating that the pilot system can meet the requirements for fly ash treatment. The research results can provide data support for the industrial application of the thermal plasma melting fly ash pilot system. |
|
来源
|
环境工程学报
,2021,15(6):2072-2079 【核心库】
|
|
DOI
|
10.12030/j.cjee.202008052
|
|
关键词
|
热等离子体
;
垃圾飞灰
;
砷污染
;
重金属
|
|
地址
|
1.
中国矿业大学(北京)大气环境管理与污染控制研究所, 北京, 100083
2.
中国科学院有机地球化学国家重点实验室, 中国科学院有机地球化学国家重点实验室, 广州, 510640
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1673-9108 |
|
学科
|
行业污染、废物处理与综合利用 |
|
基金
|
山西省科技重大专项
;
有机地球化学国家重点实验室开放基金课题资助
;
山西省揭榜招标项目
;
中央引导地方科技发展专项
;
中央高校基本科研业务费专项资金
|
|
文献收藏号
|
CSCD:6998768
|
参考文献 共
37
共2页
|
|
1.
中华人民共和国生态环境部.
2020年全国大、中城市固体废物污染环境防治年报,2020
|
被引
8
次
|
|
|
|
|
2.
中华人民共和国生态环境部.
2019年全国大、中城市固体废物污染环境防治年报,2020
|
被引
2
次
|
|
|
|
|
3.
Zhu Y. A review of municipal solid waste in China: Characteristics, compositions, influential factors and treatment technologies.
Environment, Development and Sustainability,2020(4):1-20
|
被引
1
次
|
|
|
|
|
4.
Ma H T. Review of typical municipal solid waste disposal status and energy technology.
Energy Procedia,2016,88:589-594
|
被引
4
次
|
|
|
|
|
5.
Li H M. Summary of flue gas purification and treatment technology for domestic waste incineration.
6th International Conference on Energy Materials and Environment Engineering (ICEMEE). ELECTR NETWORK, 508,2020:012016
|
被引
1
次
|
|
|
|
|
6.
章骅. 烟气净化工艺和焚烧炉类型对生活垃圾焚烧飞灰性质的影响.
环境科学,2018,39(1):467-476
|
被引
18
次
|
|
|
|
|
7.
杨建楠. 生活垃圾焚烧发电项目垃圾焚烧炉的选型.
电力勘测设计,2017(4):71-75
|
被引
1
次
|
|
|
|
|
8.
Zhang Y Y. Treatment of municipal solid waste incineration fly ash: State-of-the-art technologies and future perspectives.
Journal of Hazardous Materials,2021,411:125-132
|
被引
1
次
|
|
|
|
|
9.
Wang P. Municipal solid waste (MSW) incineration fly ash as an important source of heavy metal pollution in China.
Environmental Pollution,2019,252(Part A):461-475
|
被引
22
次
|
|
|
|
|
10.
生态环境部.
国家危险废物名录(2021年版): 000014672/2020-01495,2021
|
被引
1
次
|
|
|
|
|
11.
Wang X. Melting characteristics during the vitrification of MSW incinerator fly ash by swirling melting treatment.
Journal of Material Cycles and Waste Management,2015,19(1):1-13
|
被引
1
次
|
|
|
|
|
12.
Vssab C. Progress in waste utilization via thermal plasma.
Progress in Energy and Combustion Science,2020,81:100873
|
被引
3
次
|
|
|
|
|
13.
柴寿明. 热等离子体危险垃圾处理技术研究进展.
现代制造技术与装备,2016(10):4-10
|
被引
5
次
|
|
|
|
|
14.
曹小玲. 等离子体气化技术处理城市生活垃圾的硏究现状.
现代化工,2014,34(9):26-31
|
被引
3
次
|
|
|
|
|
15.
Zhang Q L. Gasification of municipal solid waste in the plasma gasification melting process.
Applied Energy,2012,90(1):106-112
|
被引
3
次
|
|
|
|
|
16.
Wang Q. Application of thermal plasma to vitrify fly ash from municipal solid waste incinerators.
Chemosphere,2010,78(5):626-630
|
被引
12
次
|
|
|
|
|
17.
Tu X. Vitrification of MSWI fly ash using thermal plasma technology.
International Conference on Power Engineering (ICOPE-2007),2007:823
|
被引
1
次
|
|
|
|
|
18.
潘新潮. 等离子体技术在处理垃圾焚烧飞灰中的应用研究.
环境科学,2008,29(4):1114-1118
|
被引
6
次
|
|
|
|
|
19.
李润东. 垃圾焚烧飞灰熔融过程重金属的迁移特性实验.
中国环境科学,2004,24(4):97-100
|
被引
2
次
|
|
|
|
|
20.
卢欢亮. 等离子体熔融技术处理垃圾焚烧飞灰的中试研究.
环境卫生工程,2017,25(4):51-53
|
被引
5
次
|
|
|
|
|
了解气象卫星更多信息，请访问