RESOURCE RECOVERY AND WASTE TO VALUE / 02
Removing salt so steel plant water can be reused.
Reuse steel plant water without rusting pipes.
Steel plant wastewater has too much chloride, which rusts pipes, to be reused. NF membranes take out most of the chloride so the water can be reused.
What it achieves
The key numbers.
of chloride removed.
of water recovered.
plant size.
Problem and fix
The problem this solves.
- 01The problem
Steel plant wastewater has too much chloride, which rusts pipes, to be reused.
How it is fixedNF membranes take out most of the chloride so the water can be reused.
How it works
Step by step.
- 1
Pre-filter
Wastewater is filtered.
- 2
NF membrane
Chloride and cyanide are separated out.
- 3
Reuse
Low-chloride water goes back into the plant.
Key features
Why it works well.
Removes 74% of chloride. 5,000 to 8,000 litres an hour.
- Cheaper than ROFor this job, NF costs less to run.
- Meets reuse limitsChloride brought below 400 to 500 mg/L.
- Also removes cyanideFrom steel process water.
At a glance
The details.
| Capacity | 5,000 to 8,000 litres an hour |
|---|---|
| Result | Chloride from 1,500 to 2,000 mg/L down to below 500 mg/L |
| Water recovered | 75% |
| Ready level | Level 9 of 9 (already in use) |
| Scale | Factory |
| Used in | Steel |
Costs are indicative and change with your water, site and plant size. We confirm them after testing a sample.
Where it is used
Who it is for.
- Steel plants
- Metal processing units
Questions
Frequently asked questions.
Is this technology proven?
Yes. It is at ready level 9 of 9, which means: already in use. Removes 74% of chloride. 5,000 to 8,000 litres an hour.
Can we try it on our own water first?
Yes. We test a sample in our NABL-accredited lab and, where it helps, run a small trial on your site before you invest in a full plant.
Do you supply and install it?
Yes. We design, supply, install and start up the system, train your staff, and our lab checks the treated water.
Getting salt, solvents and metals back from wastewater
Other ways to fix this problem.
THE NEXT STEP
Fix it on
your own site.
Send us a water sample or a test report. We will check it, confirm this method fits and tell you what it costs to run.
Discuss your problem