Rispri LabsENGINEERING A CIRCULAR FUTURE

INDUSTRIAL WASTEWATER AND ZLD / 10

Ready: level 6 of 9Working model tested in real conditionsTrial

First-stage treatment with less sludge.
First-stage treatment with 74% less sludge.

Adding chemicals at the start of the ETP creates a lot of sludge. A tank with two zones: one catches the floating solids, the other lets bacteria digest them.

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.

74%

less sludge than usual.

92%

of suspended solids removed.

0

chemicals added.

Problem and fix

The problem this solves.

  1. 01
    The problem

    Adding chemicals at the start of the ETP creates a lot of sludge.

    How it is fixed

    A tank with two zones: one catches the floating solids, the other lets bacteria digest them. No chemicals are added.

How it works

Step by step.

  1. 1

    Catch

    The first zone, with air, catches floating solids.

  2. 2

    Digest

    The second zone, without air, lets bacteria digest them.

  3. 3

    Pass

    Clear water moves on to the next stage.

Key features

Why it works well.

Small space, low power, very little sludge.

  • No coagulantNo chemicals at the start of the ETP.
  • Small footprintLow space and power.
  • Lower running costLess sludge to handle.

At a glance

The details.

Removes92% of suspended solids
Sludge74% less than usual
ChemicalsNone
Ready levelLevel 6 of 9 (working model tested in real conditions)
ScaleTrial

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.

  • Industrial ETPs
  • Sewage plants

Questions

Frequently asked questions.

Is this technology proven?

Yes. It is at ready level 6 of 9, which means: working model tested in real conditions. Small space, low power, very little sludge.

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