Rispri LabsENGINEERING A CIRCULAR FUTURE

INDUSTRIAL WASTEWATER AND ZLD / 03

Ready: level 9 of 9Already in useFull-size plants

Carbon bed for very strong, toxic wastewater.
For wastewater so strong it kills ETP bacteria.

Wastewater from pesticide, dye or chemical plants is so strong it kills the bacteria in the ETP. Hydrogen peroxide is added and passes over carbon coated with iron.

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.

INR 12 to 15

per 1,000 litres to run.

No iron

sludge.

No smell

from treatment.

Problem and fix

The problem this solves.

  1. 01
    The problem

    Wastewater from pesticide, dye or chemical plants is so strong it kills the bacteria in the ETP.

    How it is fixed

    Hydrogen peroxide is added and passes over carbon coated with iron. Together they make a strong cleaning agent that breaks down the pollution. The iron stays on the carbon, so no iron sludge forms.

How it works

Step by step.

  1. 1

    Dose

    A little hydrogen peroxide is added.

  2. 2

    React

    It flows over carbon coated with iron.

  3. 3

    Destroy

    Strong cleaning agents form and break down the pollution.

  4. 4

    Discharge

    The iron stays on the carbon, so no iron sludge forms.

Key features

Why it works well.

INR 12 to 15 per 1,000 litres.

  • Handles toxic wastewaterPesticide, dye and chemical effluent.
  • No iron sludgeUnlike normal Fenton treatment.
  • Small footprintA packed bed, not a big tank.
  • Low powerLittle electricity needed.

At a glance

The details.

TreatsVery high COD, toxic organics
Running costINR 12 to 15 per 1,000 litres
SludgeVery little
Ready levelLevel 9 of 9 (already in use)
ScaleFull-size plants
Used inPesticide, dye, chemical

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.

  • Pesticide makers
  • Dye intermediate units
  • Chemical plants

Questions

Frequently asked questions.

Is this technology proven?

Yes. It is at ready level 9 of 9, which means: already in use. INR 12 to 15 per 1,000 litres.

What does it cost to run?

About iNR 12 to 15 per 1,000 litres. The exact figure depends on your water and the size of the plant. We confirm it after testing a sample.

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 7 of 9Enzyme filter to remove foam and detergentTreated wastewater still foams because detergent is left in it.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