Rispri LabsENGINEERING A CIRCULAR FUTURE

SEWAGE, DRAINS AND WATER BODIES / 01

Ready: level 7 to 9 of 9Already in useOne home to a town

Planted gravel beds that clean sewage.
Planted beds that clean sewage for almost nothing.

A colony, school or village needs to treat its sewage but cannot pay high running costs. Sewage flows slowly through gravel beds planted with chosen plants.

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SEWAGE, BATH WATER AND OPEN DRAINSDelivered by Rispri Labs
Sewage, bath water and open drains
Sewage, bath water and open drains

What it achieves

The key numbers.

0

power, chemicals or sludge.

Hundreds

already working.

Varying flows

handled well.

Problem and fix

The problem this solves.

  1. 01
    The problem

    A colony, school or village needs to treat its sewage but cannot pay high running costs.

    How it is fixed

    Sewage flows slowly through gravel beds planted with chosen plants. The roots, and the bacteria living on them, clean the water. No power, no chemicals and no sludge to remove.

How it works

Step by step.

  1. 1

    Settle

    Sewage first settles in a tank.

  2. 2

    Flow

    It flows slowly through beds of gravel and crushed brick.

  3. 3

    Clean

    Plant roots and bacteria remove pollution and nutrients.

  4. 4

    Reuse

    Clean water goes to gardens or drains.

Key features

Why it works well.

Hundreds already working in India. Copes with flows that go up and down during the day.

  • Very low running costNo electricity or chemicals.
  • Simple to runNo skilled operator.
  • Remote friendlyWorks far from grids and sewers.
  • Green spaceLooks like a garden.

At a glance

The details.

TreatsSewage, town and farm wastewater
PowerNone
Indicative build costAbout INR 2.5 crore per 1,000 kL/day
Ready levelLevel 7 to 9 of 9 (already in use)
ScaleOne home to a town

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.

  • Colonies
  • Villages
  • Schools and campuses
  • Towns

Questions

Frequently asked questions.

Is this technology proven?

Yes. It is at ready level 7 to 9 of 9, which means: already in use. Hundreds already working in India. Copes with flows that go up and down during the day.

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.

Sewage, bath water and open drains

Ready: level 8 of 9Planted beds for salty wastewaterWastewater near the coast or from a factory is too salty for ordinary plants.Ready: level 7 of 9Reuse bath and kitchen water at homeBath and kitchen water goes down the drain while clean water is used to flush toilets.Ready: level 9 of 9Cleaning sewage inside the open drainAn open drain (nallah) carries raw sewage into a lake or river.Problem guideNo Sewer LineIn many towns, sewage flows straight down open drains. It can be cleaned right where it flows.

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 SEGMENTSewage, drains and water bodiesALL TECHNOLOGIESAll proven technologies