Rispri LabsENGINEERING A CIRCULAR FUTURE

SAFE DRINKING WATER / 06

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

One plant for fluoride, arsenic and iron.
One plant for water with more than one problem.

The water has two or three problems at once, for example fluoride and iron. The water is cleaned in stages.

ARSENIC AND FLUORIDE IN BOREWELL WATERDelivered by Rispri Labs
Arsenic and fluoride in borewell water
Arsenic and fluoride in borewell water

What it achieves

The key numbers.

450 to 10,000 L/h

across the models.

1 to 4 paise

per litre of treated water.

3 in 1

fluoride, arsenic and iron removed.

Problem and fix

The problem this solves.

  1. 01
    The problem

    The water has two or three problems at once, for example fluoride and iron.

    How it is fixed

    The water is cleaned in stages. First the iron is turned into rust and settles out. Then filter cartridges remove fluoride and arsenic. There is no RO membrane, so almost no water is wasted.

How it works

Step by step.

  1. 1

    Oxidise

    Iron in the water is turned into rust.

  2. 2

    Settle

    The rust settles out in the first tank.

  3. 3

    Filter

    Replaceable cartridges remove fluoride and arsenic.

  4. 4

    Store

    Safe water goes to a storage tank of up to 1,200 litres.

Key features

Why it works well.

Arsenic below 10 µg/L, iron below 0.3 mg/L and fluoride below 1.5 mg/L. Sizes from 450 to 10,000 litres an hour.

  • No membraneAlmost no water is wasted, unlike RO.
  • Small footprintNeeds little space to install.
  • Replaceable cartridgesCartridges last about 6 to 7 months in normal use.
  • Gravity basedLow running and upkeep costs.

At a glance

The details.

Output450 to 10,000 litres an hour
ResultsArsenic below 10 µg/L, iron below 0.3 mg/L, fluoride below 1.5 mg/L
Fluoride handledUp to about 8 mg/L
Running cost1 to 4 paise a litre
Indicative equipment costAbout INR 1.5 to 2.6 lakh, plus installation
Ready levelLevel 6 of 9 (working model tested in real conditions)
ScaleVillage

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.

  • Villages with mixed contamination
  • Towns on groundwater
  • Schools and hostels

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. Arsenic below 10 µg/L, iron below 0.3 mg/L and fluoride below 1.5 mg/L. Sizes from 450 to 10,000 litres an hour.

What does it cost to run?

About 1 to 4 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