Rispri LabsENGINEERING A CIRCULAR FUTURE

SAFE DRINKING WATER / 14

Ready: level 9 of 9Already in useHome or village

Cheap filter for muddy water.
Clear water from muddy pond or flood water.

In the monsoon, pond or river water turns brown with mud and families have no way to clean it. A simple filter made from materials found locally.

YELLOW WATER, IRON AND MUDDY WATERDelivered by Rispri Labs
Yellow water, iron and muddy water
Yellow water, iron and muddy water

What it achieves

The key numbers.

Below 3 NTU

from very muddy water.

INR 1,000 to 1,500

for one unit.

3 paise

per litre.

Problem and fix

The problem this solves.

  1. 01
    The problem

    In the monsoon, pond or river water turns brown with mud and families have no way to clean it.

    How it is fixed

    A simple filter made from materials found locally. Water flows through it by gravity and comes out clear. It does not change the minerals in the water.

How it works

Step by step.

  1. 1

    Fill

    Pour muddy water into the filter.

  2. 2

    Filter

    Layers of locally available material hold back mud and germs.

  3. 3

    Use

    Clear water flows out by gravity.

Key features

Why it works well.

Very muddy water (100 to 300 NTU, a measure of muddiness) comes out clear, below 3 NTU.

  • Built for emergenciesGood for floods and cyclones.
  • Light and easy to carrySimple to move and set up.
  • No change in mineralsOnly mud and germs are removed.
  • Also removes some ironCan work as a home iron filter.

At a glance

The details.

HandlesMuddy water of 100 to 300 NTU
ResultBelow 3 NTU
Indicative unit costAbout INR 1,000 to 1,500
Running costAbout 3 paise a litre
Ready levelLevel 9 of 9 (already in use)
ScaleHome or village

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.

  • Flood relief
  • Villages using pond water
  • Remote colonies

Questions

Frequently asked questions.

Is this technology proven?

Yes. It is at ready level 9 of 9, which means: already in use. Very muddy water (100 to 300 NTU, a measure of muddiness) comes out clear, below 3 NTU.

What does it cost to run?

About about 3 paise a litre. 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.

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