Yayasan Tambah Tumbuh Indonesia

Page 8

Tambah Tumbuh Big Data

Waste management data collected through Sirkula: volume, material type, unit activity, and how it is verified.

Methodology finalFigures on this page are still sample data

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All figures on this page are sample display data Replace with operational Sirkula data once the pilot is running. For city-level context, use official SIPSN and Surakarta City Environmental Agency data along with its access date.

Operational summary

1,248 tons

Cumulative material collected [period]

86

Active transacting Waste Bank Units

2,940

Registered household members

1,906 tCO₂e

Estimated emissions avoided

Monthly volume

Unit: tons of material received at the sorting warehouse. The year-end spike follows the holiday season pattern that raises city waste generation 20–30 percent.

Material composition

Plastic 42%
Paper 24%
Organic 19%
Metal & other 15%
PlasticPaper & cardboardOrganicMetal, glass, other

Composition affects sale price and choice of processing machinery. The organic fraction determines the need for composting units.

Waste Bank Unit activity status

Sirkula flags a unit as dormant if there is no transaction for seven days. This flagging is what allows mentoring to happen before a unit stops entirely.

SubdistrictRegistered unitsActiveDormantVolume/month (kg)
Banjarsari3224838,400
Jebres2719829,100
Pasar Kliwon2116524,700
Laweyan1814421,300
Serengan1513218,500

How the data is verified

1. DepositWaste Bank Unit caretakers record the type and weight of resident deposits.
2. CollectCollectors confirm actual weight with a photo.
3. ReceiveThe warehouse re-weighs; discrepancies are flagged by the system.
4. SellSales invoices are matched against outgoing volume.
5. AuditKey figures are independently verified on a regular basis.
City context The city of Surakarta sends roughly 300–400 tons of waste per day to the Putri Cempo landfill, a 17-hectare facility that has exceeded its design capacity for roughly two decades. In March 2026 the city government received an administrative sanction from the Ministry of Environment to draft an open-dumping phase-out action plan. Re-verify these figures against official sources before publishing.