Rispri LabsENGINEERING A CIRCULAR FUTURE

INDUSTRIAL WASTEWATER AND ZLD / 11

Ready: level 7 of 9Tested in the fieldTrial

Bacteria that remove dye colour.
Bacteria that take the colour out of dye water.

Coloured wastewater from dyeing or coffee processing stains the river it goes into. Selected sea bacteria break down textile dyes and make them harmless.

Discuss your problem See how it works
FACTORY WASTEWATER THAT FAILS COD, SMELLS OR MAKES TOO MUCH SLUDGEDelivered by Rispri Labs
Factory wastewater that fails COD, smells or makes too much sludge
Factory wastewater that fails COD, smells or makes too much sludge

What it achieves

The key numbers.

96%

of dye colour removed.

38%

more light through treated water.

50%

less water needed when reused.

Problem and fix

The problem this solves.

  1. 01
    The problem

    Coloured wastewater from dyeing or coffee processing stains the river it goes into.

    How it is fixed

    Selected sea bacteria break down textile dyes and make them harmless. Another bacteria mix breaks down coffee processing waste.

How it works

Step by step.

  1. 1

    Grow

    Selected bacteria are grown in bulk.

  2. 2

    Treat

    They are added to coloured wastewater.

  3. 3

    Clear

    They break dyes down into harmless substances.

Key features

Why it works well.

Treated dye water let 38% more light through in tests.

  • Natural methodNo harsh chemicals.
  • Water reuseTreated water can cut fresh water use by about half.
  • Coffee waste tooA second bacteria mix treats coffee processing waste.

At a glance

The details.

TreatsTextile dye water, coffee processing waste
Colour removalUp to 96%
Ready levelLevel 7 of 9 (tested in the field)
ScaleTrial
Used inTextile, coffee

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.

  • Textile dyeing units
  • Coffee processors

Questions

Frequently asked questions.

Is this technology proven?

Yes. It is at ready level 7 of 9, which means: tested in the field. Treated dye water let 38% more light through in tests.

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.

Factory wastewater that fails COD, smells or makes too much sludge

Ready: level 9 of 9Carbon bed with bacteria for hard wastewaterYour ETP keeps failing the COD test and produces heaps of sludge.Ready: level 9 of 9Moving carbon bed for wastewaterSewage or factory wastewater needs cleaning with very little sludge left over.Ready: level 9 of 9Carbon bed for very strong, toxic wastewaterWastewater from pesticide, dye or chemical plants is so strong it kills the bacteria in the ETP.Problem guideETP Failing the COD TestIf your ETP cannot pass the COD test, adding more chemicals only adds more sludge. Here is what works instead.

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
THIS SEGMENTIndustrial wastewater and ZLDALL TECHNOLOGIESAll proven technologies