As a company operating in a water-scarce region, Qatar Steel aims to reduce water consumption to the best of its ability, for the benefit of operations, as well as of the community and environment. Qatar Steel uses water in the form of freshwater, seawater, and recycled water in its operations, mainly as a cooling agent.
Qatar Steel’s water management approach focuses on three objectives:
Decrease freshwater consumption;
Reduce wastewater discharge;
Increase the recycling rate of processed water.
Water Management (m3)
2016
2017
2018
2019
2020
Freshwater Used (purchased, m3)
1,501,960
1,641,604
1,488,152
1,554,644
673, 570
Processed Waste Water Discharged (to sea, m3)
767,678
708,174
622,320
617,794
222, 795
Water Recycled or Reused (m3)
151,565
322,519
348,495
289,130
64,639
Water Recycled (%)
16.5%
31.7%
35.9%
21.0%
28.17%
Water Intensity (Freshwater Used /
Metric Tonne of Molten Steel)
0.60
0.63
0.65
0.60
0.59
Discharge of used water (wastewater) has been an issue for industries which not only causes contamination to the environment but it is also a resource and monetary loss for the industries. Near Zero liquid discharge (NZLD) is an engineering approach to water treatment where almost all maximum water is recovered and contaminants are reduced to solid waste. Qatar Steel is in the process of construction of a NZLD plant. Once commissioned, plants with NZLD efficiencies will operate with significantly reduced volumes of Treated Industrial Water (TIW) and brine discharges into the sea. In consideration of full plant operation, the cooling sea water discharge, ~28, 000 m3/hour and TIW discharge ~83 m3/hour is going to be reduced to ~9.6 m3/hour after the installation of NZLD plant. Commissioning of this plant reaffirms the Qatar Steel Management’s commitment towards the environment and sustainability.
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