Windrow Composting: Difference between revisions
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==The Process== | ==The Process== | ||
===Stage 1=== | ===Stage 1=== | ||
[[Green Waste]] is delivered to the site (which has to have an [[Environmental Permit]]) and large items of contamination such as plastic, metal etc. are removed. The material is then shredded to produce a uniform particle size which is has a structure to allow air to pass through it during the treatment process. | |||
[[File:Compost shredding pic.jpg|400px|left|Shreeding green waste source kps-UK.com]]__TOC__ | [[File:Compost shredding pic.jpg|400px|left|Shreeding green waste source kps-UK.com]]__TOC__ | ||
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===Stage 2=== | ===Stage 2=== | ||
The shredded material is then placed into piles in long rows known as ‘windrows’, in the open air. The composting process is kick-started by naturally occurring micro-organisms already in the waste. They break down the material, releasing nutrients (and producing heat and some steam) and in doing so they increase the temperature up to around 65<sup>o</sup>C needed to kill pathogens and weed seeds and meet the criteria for the final product quality specification. | The shredded material is then placed into piles in long rows known as ‘windrows’, in the open air. The composting process is kick-started by naturally occurring micro-organisms already in the waste. They break down the material, releasing nutrients (and producing heat and some steam) and in doing so they increase the temperature up to around 65<sup>o</sup>C needed to kill pathogens and weed seeds and meet the criteria for the final product quality specification. | ||