About Composting (IVC and OWC)
Tamar operates two types of composting facilities; Open Windrow Composting sites that recycle green waste and In-Vessel Composting sites that process commingled waste (green and food waste).
The premium grade compost produced is widely used by a prestigious range of commercial and domestic customers. Find out more
In-Vessel Composting (IVC)
The in-vessel composting (IVC) process mixes organic material, including food waste, under strictly-controlled environmental conditions within a sealed and fully enclosed purpose-built bunker. The process meets the highest industry standards and compliant with latest regulations as well as having a Category 3 Animal By-Products Regulations (ABPR) License.
We can process a range of organic material, including:
- Kerbside domestic collected organics
- Catering waste, including meat and fish
- Local Authority civic amenity site garden waste
- Commercial fruit and vegetables
- Liquid food waste
After treatment, the compost is extracted from the IVC bunkers to bays where it’s left to mature for around 6-8 weeks. The product is a stabilised, nutrient-rich and peat-free compost which is suitable as a soil improver for the farming and agriculture industry.
Open Windrow Composting (OWC)
Open windrow composting (OWC) processes garden waste only – grass cuttings, pruning and leaves – in an open environment and allows the material to break down in the presence of oxygen. Without exception, there is no food waste or animal by-products.
There are multiple uses for the exceptional quality compost produced which, dependent on grade, can be used as a soil improver, mulch, topsoil constituent, turf dressing and as a growing medium. It can be used on domestic and commercial gardens, brownfield sites, for landscaping as well as full-scale agriculture.