Waste & resource recovery
Organic waste & sludge
A recovery concept must work from collection and preparation through treatment to the management or use of its outputs. BGF assesses how feedstock characteristics, site conditions and product requirements affect the choice between biological and other recovery pathways.
- 01Incoming material
Composition · contamination · variability
- 02Preparation
Segregation · sorting · pretreatment
- 03Conversion or recovery
Process fit · evidence · operating window
- 04Products and residuals
Quality · outlets · acceptance
Illustrative system boundary. Each output needs a defined use or management route.
The decision
Questions to resolve
- What material will reach the process after collection and separation?
- How do pretreatment, storage, water balance and residual handling affect the concept?
- What quality, use or disposal route is required for each output?
A useful starting point
Information to bring together
- Quantities and variability; composition, moisture and contamination; collection and storage arrangements.
- For combined streams: separate characterization of each feedstock and the proposed mixing basis.
- Site footprint, utilities, logistics, operating capability and intended outlets for recovered products and residuals.
What BGF can provide
Outputs for the next step
- A feedstock-readiness and information-gap assessment.
- An options comparison covering preparation, treatment and output management.
- A concept note and validation questions for pilot or supplier discussions.
Relevant streams include food and catering waste, source-separated organics, selected industrial organic residues and wastewater-treatment sludge. Their suitability for a common process is assessed rather than assumed.
What needs to be clearer in your project?
Start with a short, non-confidential description of the problem and the decision ahead.