Rispri LabsENGINEERING A CIRCULAR FUTURE

SEWAGE, DRAINS AND WATER BODIES / 06

Ready: level 8 of 9Finished and provenSmall business

Small wastewater plant that makes biogas.
Treat strong wastewater and get biogas back.

A small food business has strong wastewater and no space for a big ETP. A compact unit lets bacteria break down the waste without air.

Discuss your problem See how it works
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.

70 to 80%

of pollution turned into biogas.

500 to 4,000 mg/L

COD handled.

0.02 sq ft

per litre of footprint.

Problem and fix

The problem this solves.

  1. 01
    The problem

    A small food business has strong wastewater and no space for a big ETP.

    How it is fixed

    A compact unit lets bacteria break down the waste without air. It makes biogas and clean water for reuse, and handles its own sludge.

How it works

Step by step.

  1. 1

    Digest

    Bacteria without air turn waste into biogas.

  2. 2

    Polish

    An aerobic stage cleans the water further.

  3. 3

    Manage sludge

    A built-in system handles sludge.

  4. 4

    Reuse

    Water and gas are both used.

Key features

Why it works well.

Very small footprint. Already working at a rural food unit.

  • Very compactFits small sites.
  • Energy backBiogas for cooking or heating.
  • ModularAdd units as you grow.

At a glance

The details.

TreatsOrganic-rich wastewater, COD 500 to 4,000 mg/L
Example2,000 L/day unit at about INR 2.5 lakh
OutputsReuse water and biogas
Ready levelLevel 8 of 9 (finished and proven)
ScaleSmall business

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.

  • Canteens
  • Restaurants and hotels
  • Small food units

Questions

Frequently asked questions.

Is this technology proven?

Yes. It is at ready level 8 of 9, which means: finished and proven. Very small footprint. Already working at a rural food unit.

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 7 to 9 of 9Planted gravel beds that clean sewageA colony, school or village needs to treat its sewage but cannot pay high running costs.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.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