Rispri LabsENGINEERING A CIRCULAR FUTURE

SAFE DRINKING WATER / 08

Ready: level 9 of 9Already in useTown or factory

Ceramic filter plant for heavy arsenic and iron.
For heavy arsenic and iron that clogs sand filters.

The water has very high arsenic and so much iron that sand filters clog within days. Iron and arsenic are first turned into tiny solid particles.

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.

10,000 L/h

plant size.

10 paise

per litre of treated water.

Below 10 µg/L

arsenic in the treated water.

Problem and fix

The problem this solves.

  1. 01
    The problem

    The water has very high arsenic and so much iron that sand filters clog within days.

    How it is fixed

    Iron and arsenic are first turned into tiny solid particles. Then ceramic filter tubes with very small holes hold the particles back. The arsenic waste is locked in a solid block so it cannot leak out.

How it works

Step by step.

  1. 1

    Oxidise

    Iron and arsenic are turned into tiny solid particles.

  2. 2

    Capture

    A prepared medium binds the arsenic.

  3. 3

    Filter

    Ceramic tubes with very small holes hold back all particles.

  4. 4

    Lock away

    Arsenic waste is sealed in a solid block for safe disposal.

Key features

Why it works well.

Arsenic below 10 µg/L and iron below 0.3 mg/L. Up to 10,000 litres an hour, at about 10 paise a litre.

  • Handles very dirty waterTreats 1 to 1.5 mg/L arsenic with 10 to 15 mg/L iron.
  • Ceramic filters lastStrong, heat-proof and easy to clean by backwash.
  • Safe wasteArsenic sludge is locked away, not dumped.
  • Iron-only useWorks as an iron plant where there is no arsenic.

At a glance

The details.

OutputUp to 10,000 litres an hour
ResultsArsenic below 10 µg/L, iron below 0.3 mg/L
Running costAbout 10 paise a litre
Can feedAn RO plant, as pre-treatment
Ready levelLevel 9 of 9 (already in use)
ScaleTown or factory

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.

  • Towns
  • Industries on groundwater
  • Mining areas

Questions

Frequently asked questions.

Is this technology proven?

Yes. It is at ready level 9 of 9, which means: already in use. Arsenic below 10 µg/L and iron below 0.3 mg/L. Up to 10,000 litres an hour, at about 10 paise a litre.

What does it cost to run?

About about 10 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