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City Compost

Turning urban wet waste into wealth.

A city’s organic waste doesn’t have to be a disposal cost. We help Urban Local Bodies turn wet waste into Harit-certified, marketable compost — closing the urban–rural nutrient loop.

Proven with GIZ across 4 Maharashtra cities

In short — we build a viable route to market for ULB compost: end-to-end production, FCO-compliant quality, Harit branding, logistics and farmer demand — so municipal wet waste becomes a saleable product, not landfill.
Project background

Under a GIZ-supported programme, Social Lab demonstrated business plans for city compost across four cities chosen for geographic & socio-economic variability.

BallarpurErandolBadlapurKarad
The business model

From city waste to farm-ready product

Urban organic waste → compost → rural agriculture → food. We make each link in the chain work.

Step 1 Compost Production

Urban organic waste is stabilised and composted to a marketable grade.

Step 2 Packaging & Branding

Harit-certified packaging gives ULB compost real shelf appeal.

Step 3 Transportation

A dependable supply chain moves compost from city to farm.

Step 4 Customer Delivery

Delivered to farmer groups, FPOs, Krushi Kendras and nurseries.

End-to-end SOP

Five stages to lab-tested, sellable compost

Our standard operating procedure takes raw wet waste to compost that passes the Fertiliser Control Order, 2009.

  1. 01
    Windrow / Pit Composting45–60 days

    Waste stabilisation, windrow/pit formation, periodical turning with inoculum dosing, and sieving (3/5/7 mm).

  2. 02
    Quality CheckPass / re-stabilise

    Grain homogeneity, dark-brown-to-black colour, temperature ≤25°C, moisture ≤25% and pH 5.5–8.0.

  3. 03
    StackingWithin 48 hrs

    Stored in covered area away from sunlight, in air-tight drums or polythene bags; sampled within 48 hours.

  4. 04
    Final SamplingWithin 24 hrs

    Minimum 2 kg drawn by the Quarter & Coning method, packed and delivered to the lab.

  5. 05
    Quality TestingFCO 2009

    All parameters tested in-house and at a Govt-approved Fertiliser Control Laboratory.

Quality check — every batch
Grain homogeneity (3/5/7 mm)Dark brown to blackTemperature ≤ 25°CMoisture up to 25%pH value 5.5–8.0
Outcomes on the ground

Real demand, real income for ULBs

5.5 MT Immediate compost demand fulfilled
245 MT Projected demand (Apr–Jun 2022)
₹3.16 L Projected income for 4 ULBs
4 Project cities across Maharashtra
Proven on the ground

City-compost projects with real demand

The Social Lab network

City compost is one loop in a bigger system

The same circular thinking runs across our municipal, CSR and producer work.

On-ground in Maharashtra

City compost programmes from Pune & Chhatrapati Sambhaji Nagar

On-ground compost production, quality assurance and farmer-market linkages, with delivery across Maharashtra.

Let’s talk

Run a ULB or processing facility?

Let’s turn your wet waste into a Harit-certified compost product that sells.

Or call +91 95942 59275 · [email protected]