Prepare Your Material For Reliable Recycling

It is the conditional set of steps that brings an input into a defined feed window for downstream processing. It may include sorting, size conditioning, dry or wet cleaning, dewatering, drying, densification, blending, controlled feeding and testing.

Uncontrolled moisture, contamination, particle form, bulk density or feeding can reduce throughput, stability, equipment life and output quality. Preparation should address a measured problem and be validated against the downstream target.

The answer depends on polymer/blend, source, contamination, moisture, particle-size distribution, fines, bulk density, flow, odour/volatiles, throughput and downstream quality. Compare the simplest route first; not every material needs every stage.

Clean, dry, characterised and consistently sized material that feeds reliably and already meets downstream requirements may need no extra MAS preparation stage. Confirm this with representative operating data or testing.

DRD dry cleaning can remove suitable loose contamination and reduce moisture from appropriate pre-shredded streams without process water. It may not remove adhered, soluble, oily or deeply embedded contamination, and it does not replace every wet-washing route.

Wet washing may be more suitable for adhered or soluble contamination that dry separation cannot remove. Evaluate washing chemistry, water and wastewater treatment, dewatering, thermal drying, residue disposal, energy and required cleanliness.

No. Drying depends on initial/final moisture, polymer sensitivity, downstream degassing, storage and feeding. Wet washing normally creates a dewatering/drying duty; dry cleaning may reduce but not always meet the required moisture limit.

Densification can increase bulk density and improve handling or feeding of lightweight films, fibres and nonwovens. It does not remove contamination, guarantee dryness or correct incompatible polymers. Compare direct feeding, controlled feeding, cutter compaction and PreDensifier routes.

Removal depends on contaminant type, size, density, adhesion, moisture and selected process. Suitable loose dust, sand, fines, paper, metals or heavy particles may be separated; adhered residues, oils, mixed polymers, odour or degradation may need other processes or may remain limiting.

It can when moisture, contamination, particle form or unstable feeding is the proven bottleneck and the downstream line can accept more feed. It cannot overcome limits in extrusion, filtration, cooling, pelletising or utilities.

Compare electricity, heat, compressed air, process water, wastewater treatment, removed contamination, fines, yield loss, consumables and disposal for each route. Use equivalent input and output criteria rather than describing one technology as universally more sustainable.

Main drivers include sorting and size reduction, cleaning method, water treatment, dewatering/drying, densification, feeding, controls, utilities, footprint, installation, labour, maintenance, wear, waste disposal and usable yield. Compare lifecycle cost and downstream benefit.

Yes. Agree representative samples, current condition, routes to compare, operating conditions, test methods and downstream acceptance criteria. Document input/output data, yield, utilities, limitations and scale-up assumptions.

Validate it using representative material and an agreed feed window. Measure relevant moisture, contamination, particle distribution, bulk density/flow, yield and downstream stability/output. State operating range, exclusions and responsibilities.

Another supplier’s sorting/washing system, an operational or maintenance correction, existing equipment or no additional stage may be better. Preparation may also be unable to overcome incompatible polymers, severe degradation, persistent contamination or an unrealistic output target.