Technologies for biological treatment of BMW
CRS are specialists in the biological treatment of organic wastes and can supply a full range of treatment processes.
All CRS plant designs comply with ABPR when this is a requirement |
In-vessel Composting (IVC) - the intensive composting of organic wastes in enclosed composting tunnels with air and odour management, continuous process monitoring and compliance with the ABPR.
Mechanical Biological Treatment (MBT) - A process which combines mechanical separation technologies with biological treatment usually used for mixed municipal waste. MBT process outputs can be one or more of the following; a compost-like output (CLO) for land remediation, biogas for energy production, a solid refined fuel (SRF) and a biostabilised material for landfill.
Windrow composting – The composting of greenwaste in open windrows usually on an impervious base.
Anaerobic Digestion (AD) – The decomposition of organic matter in the absence of air, which generates a methane rich gas suitable for burning, either for heat or for power and heat.
Enclosed, covered or open maturation composting – following the intensive processing (AD or composting), the material is matured for a further period prior to use. This stage can be in enclosed building with active ventilation, covered (Dutch Barn style), or on open slab.
Choice of treatment process
The choice of the most appropriate technology is a complex one but CRS have the breadth of knowledge and experience to assist with the design and specification of such plants. Feedstock and tonnage are two of the key factors which determine the technology selection. For example,
- IVC with open windrow maturation is suitable for source separated wastes, containing ABPR (CAT 3) wastes at throughputs from 5,000 to 50,000 t/a
- Windrow composting is suitable for green waste brought to household waste recycling centres and parks and gardens wastes
- MBT of mixed waste for biostabilisation and /or CLO's can be suitable for scales ranging from 13,000 t/a to over 100,000 t/a
