Rispri LabsENGINEERING A CIRCULAR FUTURE

RESOURCE RECOVERY AND WASTE TO VALUE / 05

Ready: level 7 of 9Tested in the fieldFactory

Pure metals back from sludge and used catalysts.
Turn metal sludge into pure metal.

Metal sludge and used catalysts are hazardous waste that cost money to get rid of. The metals are dissolved out and purified into high-grade metals or battery materials.

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GETTING SALT, SOLVENTS AND METALS BACK FROM WASTEWATERDelivered by Rispri Labs
Getting salt, solvents and metals back from wastewater
Getting salt, solvents and metals back from wastewater

What it achieves

The key numbers.

High-purity

metals.

Battery-grade

materials.

Less

hazardous waste.

Problem and fix

The problem this solves.

  1. 01
    The problem

    Metal sludge and used catalysts are hazardous waste that cost money to get rid of.

    How it is fixed

    The metals are dissolved out and purified into high-grade metals or battery materials.

How it works

Step by step.

  1. 1

    Leach

    Metals are dissolved out of sludge or spent catalyst.

  2. 2

    Purify

    Impurities are removed.

  3. 3

    Recover

    Pure metal or battery material is produced.

Key features

Why it works well.

The products sell for more than ordinary scrap metal.

  • Higher valueBattery materials sell above ordinary metal.
  • Many inputsSludge, spent catalysts, effluents, low-grade ores.
  • Many metalsCopper, nickel, cobalt, zinc, manganese.

At a glance

The details.

InputsSpent catalysts, sludge, effluents, low-grade ores
OutputsPure copper, nickel, cobalt, zinc; battery-grade manganese, nickel and cobalt compounds
Ready levelLevel 7 of 9 (tested in the field)
ScaleFactory
Used inMetals, mining, refinery

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.

  • Refineries
  • Electroplating units
  • Mining and metal plants

Questions

Frequently asked questions.

Is this technology proven?

Yes. It is at ready level 7 of 9, which means: tested in the field. The products sell for more than ordinary scrap metal.

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

Ready: level 9 of 9Clean salt back from tannery and dyeing wastewaterYour ZLD plant leaves tonnes of mixed salt every month that you cannot sell or dump.Ready: level 9 of 9Removing salt so steel plant water can be reusedSteel plant wastewater has too much chloride, which rusts pipes, to be reused.Ready: level 6 to 8 of 9Getting costly solvents back from wastewaterPharma and fibre plants lose expensive solvents into their wastewater, then pay again to treat it.Problem guideZLD Salt Piling UpYour ZLD plant solved the water problem. Now you have a salt problem. Here is how to fix it.

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.

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THIS SEGMENTResource recovery and waste to valueALL TECHNOLOGIESAll proven technologies