GYIG OpenIR  > 环境地球化学国家重点实验室
Mass flow, enrichment and potential environmental impacts of mercury in a preheater-precalciner cement plant using multiple mining and industrial wastes
Zhonggen Li; Yiming Huang; Jinling Liu; Guangyi Sun; Qingfeng Wang; Hanxi Xiao; Mingqin Huang
2022
Source PublicationJournal of Environmental Management (IF:4.01[JCR-2016],4.712[5-Year])
Volume311Pages:114819
Abstract

Cement plants (CPs) are one of the most important anthropogenic sources of mercury (Hg) emissions in China. Over 1000 cement production lines operate in China and use various raw materials; however, little data on Hg emissions is recorded on site. This study investigated a CP in Guizhou Province that uses multiple mining and industrial wastes as part of the circular economy policy. Among the various raw materials, carbide slag had the highest Hg content (2.6 mg/kg) and contributed half of the Hg input. High Hg concentration (27 mg/kg) in the kiln tail dust and a strong Hg enrichment factor (39) was found, which was determined as the ratio of total Hg accumulated within the clinker production process to the daily Hg input from raw materials and fuel. The clinker had negligible Hg (0.001 mg/kg), while the Hg in cement products (0.04 mg/kg) mostly came from additives and retarders. The estimated atmospheric emission factor of Hg from this CP was 161.5 mg Hg/t clinker, which was much higher than those of other CPs in Guizhou that employ low-Hg raw materials. A five-step sequential extraction experiment with kiln tail dust indicates that Hg mainly existed in fraction of F4 (73–96% of the total Hg, possibly as Hg2Cl2) and that some samples had high proportions of water-soluble Hg (up to 21% of the total), which may be easily released into surrounding water bodies and pose high environmental risks. Using low-Hg raw (or alternative raw) materials and conducting proper disposal of kiln tail dust will reduce the environmental risk of Hg from CPs.

KeywordMercury Precalciner Cement Plants Waste Utilization Atmospheric Emissions Cement Kiln Dust
DOI10.1016/j.jenvman.2022.114819
URL查看原文
Indexed BySCI
Language英语
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/42920512-1/13557
Collection环境地球化学国家重点实验室
Affiliation1.School of Resources and Environment, Zunyi Normal College, Zunyi, 563006, China
2.School of Earth Sciences, China University of Geosciences, Wuhan, 430074, China
3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
Recommended Citation
GB/T 7714
Zhonggen Li,Yiming Huang,Jinling Liu,et al. Mass flow, enrichment and potential environmental impacts of mercury in a preheater-precalciner cement plant using multiple mining and industrial wastes[J]. Journal of Environmental Management,2022,311:114819.
APA Zhonggen Li.,Yiming Huang.,Jinling Liu.,Guangyi Sun.,Qingfeng Wang.,...&Mingqin Huang.(2022).Mass flow, enrichment and potential environmental impacts of mercury in a preheater-precalciner cement plant using multiple mining and industrial wastes.Journal of Environmental Management,311,114819.
MLA Zhonggen Li,et al."Mass flow, enrichment and potential environmental impacts of mercury in a preheater-precalciner cement plant using multiple mining and industrial wastes".Journal of Environmental Management 311(2022):114819.
Files in This Item:
File Name/Size DocType Version Access License
Mass flow, enrichmen(3149KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhonggen Li]'s Articles
[Yiming Huang]'s Articles
[Jinling Liu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhonggen Li]'s Articles
[Yiming Huang]'s Articles
[Jinling Liu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhonggen Li]'s Articles
[Yiming Huang]'s Articles
[Jinling Liu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Mass flow, enrichment and potential environmental impacts of mercury in a preheater-precalciner cement plant using multiple mining and industrial wastes.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.