| Issue |
Matériaux & Techniques
Volume 108, Number 5-6, 2020
Materials and Society: transitions in society, materials and energy
|
|
|---|---|---|
| Article Number | 510 | |
| Number of page(s) | 12 | |
| Section | Environnement - recyclage / Environment - recycling | |
| DOI | https://doi.org/10.1051/mattech/2021006 | |
| Published online | 26 April 2021 | |
Regular Article
Paving the way for the optimization of water consumption in the steelmaking processes: barriers, analysis and KPIs definition
1
Scuola Superiore Sant’Anna, TeCIP Institute, ICT-COISP Center,
Pisa, Italy
2
RINA-Centro Sviluppo Materiali,
Rome, Italy
3
Ferriere Nord S.p.A.,
Osoppo (UD), Italy
4
Sofi Filtration,
Espoo, Finland
5
Brochier Technologies,
Villeurbane, France
6
IDENER, Computational Maths,
Seville, Spain
7
TenarisDalmine,
Dalmine (BG), Italy
* e-mail: colla@sssup.it
Received:
4
October
2020
Accepted:
25
January
2021
The efficient use of water resources is one of the main challenges of the steel sector, according to the European Union water policy. On this subject, monitoring and optimization systems, linked to the innovative water treatments, represent important tools to improve water management and the related energy use. The present paper describes a part of the work developed in the early stage of the project entitled “Water and related energy Hub Advanced Management system in steelworks – WHAM”, which is co-funded by the Research Fund for Coal and Steel. The project aims at optimizing water consumption in the steelworks through a holistic combination of on-line monitoring and optimisation and innovative water treatment technologies. As different aspects affect water use in the steelmaking processes, in the first part of the paper, the main technical barriers and factors, that can impact on reuse and recirculation of wastewater and energy efficiency, are analysed. The main constraints on water management in the steel sector, such as fresh water availability, its quality and local legal requirements, were considered in order to maximise the water reuse and recycling. Furthermore, the main barriers, such as environmental issues and several costs, were investigated. In the second part of the paper, a set of Key Performance Indicators are listed. They aim at assessing and monitoring the water management sustainability in a holistic way, both in terms of environmental and economic performances, as well as of new water treatments efficiency and their economic viability. Key Performance Indicators will be used to monitor the efficiency of water management, aiming at achieving significant increase of performances. On the other hand, some of these indicators will be used as objective functions for problems optimization. The computation of the selected Key Performance Indicators will take into account both industrial data and results from simulations that will be carried out after the development of suitable tools in order to assess the feasibility of some relevant process modifications or the applications of new technologies.
Key words: industrial water networks / water management / steel industry / Key Performance Indicators / optimization / analysis of barriers
© SCF, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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