Using windrow technology to compost biosolids

Article Abstract:

Steiner Umwelttechnik's compost facility in Grafenstein, Austria, has capacity of 15,000 tons a year. It uses the open air windrow composting technology, with sludge being treated anaerobically and drained in a chamber filter before composting. Yard trimmings are processed by using a Komptech Mashmaster mixing/shredder unit, with biosolids being added in a second phase. The biosolids compost is kept in the windrows for between eight and 10 weeks before being screened and stored under roof.

Austria, Compost plants

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Windrow injection for high nitrogen liquids

Article Abstract:

A windrow injection system involves the insertion and pulling of an injector tip through the windrow so that compost covers the injected nitrogen pharmaceutical sludge. This buries the compost under a carbon source, eliminating in its wake both surface applied odors and ponding in alleys caused by the nitrogen residuals. The injection system is durable, cost-effective and efficient, and employs an applicator mounted on a rolloff skid, truck and hoist.

Innovations, Pharmaceutical industry, Compost

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United Kingdom: Composting seafood waste by windrow and in-vessel methods

Article Abstract:

The United Kingdom determines safety and practicality of seafood by-product composting and how biological treatment relates to marketability of finished material. Their methods entail use of timber processing residues as a bulking and amendment material for open windrow composting using passively ventilated windrow or small in-bin systems.

United Kingdom, Methods, Composting

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