All input materials undergo a full initial assessment to establish their suitability for composting to ensure the quality of the final product is not compromised.
Input materials include shrub and tree prunings, grass clippings and untreated wood waste.
The chemical analysis of all feedstock is known and feedstocks are blended to achieve a carbon:nitrogen ratio of 30:1.
All the material are then broken into smaller pieces using the shredder and formed into large piles known as windrows.At this stage the optimum moisture content is determined and maintained.
With the correct mix of feedstock and plenty of aeration, the compost achieves temperatures of over 65oC.This temperature is maintained for a period of 14 days and coupled with the monitoring regime ensures we achieve correct sanitisation.
This is followed by a stabilisation phase which last a further 10 weeks.
In this stage the microbial activity slows down and the temperatures drop to 35-55oC. Mixes with higher carbon contents may extend this period. Frequent measuring of the stabilising windrows for temperature and oxygen content enables us to monitor how the compost process is progressing and informs us when we need to introduce more oxygen to sustain the microbes.
The compost is turned by loading shovel and it is this process that introduces fresh air for the microbes.
This turning generally happens once per week, subject to monitoring results.
After the 10 week period we screen the compost to achieve the particle size required.
It is at this point that we maturate the compost . The length of the maturation period depends on the end use of the compost.
Once the compost is matured it is then blended with carefully selected coir fibre, an organic wetting agent and a six week feed.
Regular batches of production are tested by independant laboratories to ensure product quality.
Tours of the composting facility are conducted throughout the year and especially during National Compost Awareness Week ( see News Page).
Should you wish to arrange a visit, please do not hesitate to give us a call.
Local schools, the Womens Institute and several overseas study parties have been shown round and have thoroughly enjoyed the tour.
