Problem Statement
- No batch identification:Delivery batches are not marked on the pulp bales.
- No batch segregation in storage:A "first-in, first-out" principle is applied.
- No traceability after pulping:Once pulp is fed into the pulper, it cannot be traced back.
- Fluctuating input volumes:Variable production quantities make batch assignment difficult.
- Complex mixing processes:The paper machine blends different pulp types.
Applied Mass Balance Method
Due to the mixing of raw materials, amass balance methodis applied to allocate geolocation data to the final product.
Core Principle
Each delivery of pulp is linked to its geolocation data. Over a defined accounting period, the total quantity of incoming pulp and produced paper are recorded. The geolocation data is then distributed proportionally across the output volumes.
- Incoming goods recording:Each delivery recorded with quantity and geolocation data.
- Production recording:Total quantity of paper produced during the period.
- Proportional allocation:Geolocation data allocated proportionally.
- Documentation:All allocations documented and made available for DDS.
Practical Example
In a given month: 100 tonnes from Source A (geolocation X) and 50 tonnes from Source B (geolocation Y) → 140 tonnes of paper produced. The geolocation data is assigned: 66.7% carries geolocation X, 33.3% carries geolocation Y.
Implementation with supplycanvas
supplycanvas helps paper manufacturers implement this mass balance approach digitally: record deliveries, track production, generate proportional allocations and DDS-ready documentation.