Emission and control of heavy metals in municipal solid waste incineration power plants
Journal Title: Energy Environmental Protection - Year 2023, Vol 37, Issue 3
Abstract
With the increasing production of municipal solid waste (MSW), MSW incineration power plants have become one of the main emission sources for heavy metals in China. Aiming at addressing the pollution problem of heavy metals caused by MSW incineration, this paper summarizes the emission status of MSW incineration power plants in China, overviews control standards of heavy metals at home and abroad, and points out that the emission and control of heavy metals should not be ignored under the continuous increasing production of MSW. Besides, the migration and transformation behavior of heavy metals during MSW incineration is summarized from three aspects: volatilization behavior, speciation transformation, and mass distribution in incineration products. The influencing factors of volatilization and reaction mechanism of speciation transformation are analyzed. The effects on migration and distribution of heavy metals when co-incineration with other organic solid wastes are also introduced. Finally, the control technologies of heavy metals in MSW incineration plants are summarized. Meanwhile, the removal effects of adsorbents, air pollution control devices and fly ash treatment methods on heavy metals are introduced in detail. It is of great importance to strengthening the synergistic removal capacity of air pollution control devices (APCDs) and developing high efficiency adsorbents which could resist acid gas. Moreover, the leaching risk of heavy metals should be paid more attention in fly ash after solidification and stabilization.
Authors and Affiliations
LI Shuai|State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, China, HU Hongyun|State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, China, HUANG Yongda|State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, China, XU Sihua|State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, China, ZHU Jingjing|State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, China, GUO Guangzhao|Grandblue Foshan Green Electricity Solid Waste Management Co., Ltd., China, GONG Lifang|State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, China, Grandblue Foshan Green Electricity Solid Waste Management Co., Ltd., China, YAO Hong*|State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, China
Keywords
Related Articles
- EP ID EP737900
- DOI 10.20078/j.eep.20230405
- Views 49
- Downloads 1
Application and challenges of recycling waste salt in the ionic membrane-based Chlor-alkali industry
Under the guidance of China′s ecological civilization policy, while the utilization of industrial water has been improved, the total wastewater discharge still cannot be neglected. Therefore, zero liquid discharge (ZLD)...
Peraceti cacid disinfection characteristics and application progress in wastewater treatment plants
Disinfection is an essential process in wastewater treatment. Chlorine disinfection is a commonly used chemical disinfectant, but it produces harmful by-products that pose threats to human health and the ecological envir...
Catalytic purification of nitrogen oxides for complex industrial flue gas
Nitrogen oxides, as one of the main atmospheric pollutants, cause potential risks to human health and the atmospheric environment. In recent years, nitrogen oxide emissions from power plants have been reduced, and contro...
Computational study on pyrolysis mechanism of β-5 linked lignin dimers
Lignin is a highly complex amorphous three-dimensional network polymer connected by C—O bond and C—C bond. Understanding the bond cleavage mechanism during lignin pyrolysis is crucial for advancing efficient pyrolysis te...
Research progress of palladium-based catalysts for oxidation of low concentration methane
Methane (CH_4) is an important greenhouse gas that is 25 times that its CO_2 equivalent. There is low concentration (0.05% ~0.5%) CH_4 leakage in marine natural gas engine exhaust. It is difficult to capture and utilize...