Predicting air pollutant emissions of the foundry industry : Based on the electricity big data

Copyright © 2024. Published by Elsevier B.V..

Industrial enterprises are one of the largest sources of air pollution. However, the existing means of monitoring air pollutant emissions are narrow in coverage, high in cost, and low in accuracy. To bridge these gaps, this study explored a predicting model for air pollutant emissions from foundry industries based on high-accuracy electricity consumption data and continuous emission monitoring system (CEMS). The model has then been applied to the calculation of air pollutant emissions from foundries without CEMS and the optimization of air pollutant emission temporal allocation factors. The results reveal that electricity consumption and PM emissions during the 2022 Beijing Winter Olympics have the same ascending and descending relationship. Furthermore, a cubic polynomial model between electricity consumption and flue gas flow is established based on the whole year data of 2021 (R2 = 0.85). The relative errors between the PM emissions calculated by the model and the emission factor method are small (-17.09-24.12 %), and the results from the two methods revealed a strong correlation (r = 0.93, p < 0.01). In addition, the monthly PM emissions from foundries are mainly concentrated in spring and winter, and the daily emissions on weekends are significantly lower than those on workdays. These results can be useful for environmental regulation and optimization of air pollutant emission inventories of foundry industry.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:917

Enthalten in:

The Science of the total environment - 917(2024) vom: 20. Feb., Seite 170323

Sprache:

Englisch

Beteiligte Personen:

Chi, Xiangyu [VerfasserIn]
Li, Zheng [VerfasserIn]
Liu, Hanqing [VerfasserIn]
Chen, Jianhua [VerfasserIn]
Gao, Jian [VerfasserIn]

Links:

Volltext

Themen:

Air pollutant emissions
Electricity data
Journal Article
Relationship model
Temporal allocation factors

Anmerkungen:

Date Revised 21.02.2024

published: Print-Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.1016/j.scitotenv.2024.170323

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367686716