Application of Unconventional Techniques for Evaluation and Monitoring of Physico-Chemical Properties of Water Streams

Matino, Ismael; Alcamisi, E.; Porzio, Giacomo Filippo; Colla, Valentina

doi:10.5013/ijssst.a.16.01.05

Cited by 2 publications

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“…and biological (aerobic and anaerobic bacteria). On this subjects, process waters from steelworks and their treatment optimization [9,10] were studied as well as new water treatments to decrease or eliminate pollutants from different steelmaking processes resulted in improving internal water reuse [4].…”

Section: Introductionmentioning

confidence: 99%

Paving the way for the optimization of water consumption in the steelmaking processes: barriers, analysis and KPIs definition

Branca

Matino

Colla

et al. 2020

Matériaux & Techniques

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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.

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Section: Introductionmentioning

confidence: 99%

Paving the way for the optimization of water consumption in the steelmaking processes: barriers, analysis and KPIs definition

Branca

Matino

Colla

et al. 2020

Matériaux & Techniques

Self Cite

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Efficient Use of Water Resources in the Steel Industry

Colla

Matino

Branca

et al. 2017

Water

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Abstract:In the steel sector water management aims at improving the sustainability of the production cycle, resulting in resource efficiency benefits and in reduced water demand and costs. To be reused, water needs to be cooled and desalinized to avoid salt concentration in water circulation systems. The presented work includes two case studies carried out in an integrated steelmaking plant, respectively, to evaluate the possible implementation of ultrafiltration and reverse osmosis to reduce salt concentration in water streams and to investigate, through modelling and simulation, a process integration solution to improve water efficiency. Results showed that most salts are removed by reverse osmosis and that its coupling with ultrafiltration allows obtaining very high quality water; reuse of desalinated wastewater resulted in being more suitable and economically viable than its discharge. Moreover, modelling and simulation showed that the considered blowdown could be reused without significant changes in the receiving water network area. The industrial implementation of water recovery solutions can lead to a decrease of fresh water consumption, effluent discharge, and to improvement of product quality and equipment service life. The considered desalination technologies are transferable and easily implementable, and modelling and simulation are very useful in order to evaluate process modifications before real implementation.

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Application of Unconventional Techniques for Evaluation and Monitoring of Physico-Chemical Properties of Water Streams

Cited by 2 publications

References 4 publications

Paving the way for the optimization of water consumption in the steelmaking processes: barriers, analysis and KPIs definition

Paving the way for the optimization of water consumption in the steelmaking processes: barriers, analysis and KPIs definition

Efficient Use of Water Resources in the Steel Industry

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