Wind Sifting Cuts Volume Losses
For this reason, the Germany Federal Compost Association, in short BGK (Bundesgütegemeinschaft Kompost), responsible for awarding the RAL (German National Committee for Delivery Conditions) quality seals to compost products, stiffened up the requirements concerning unwanted materials: now, only 15 square centimetres of plastic elements per litre of compost will be tolerated, instead of 25 square centimetres, as before. And very soon, the organic farming regulations will only permit usage of composts with less than ten square centimetres of plastic.
All this is creating huge challenges for composters, which they can barely overcome just by using even finer screening: they would simply lose too many sellable fractions and find themselves in a precarious economic situation. Doppstadt, which specialises in environmental technology, has created the Airflex 1500, which provides the technical solution for processing compost. It is a wind sifter that minimises the losses of compost product by improving its quality. To achieve this, the compost undergoes initial rough screening at 15 mm. The fines < 15 mm are than efficiently separated from unwanted materials in the Airflex 1500 in two stages. In the first step, a powerful centrifugal fan separates heavy materials such as glass, stones and metals. In the second step, a suction fan pulls away unwanted plastic films etc. The result is a compost that complies with the requirements of the RAL quality seal. Perfect, and almost plastic-free – Doppstadt’s contribution for sustainable recycling management.
The Airflex 1500 from Doppstadt: a wind sifter that gives the composting industry a technical solution that minimises the volume losses that used to occur.Click here for more information about DOPPSTADT CALBE GmbH
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Doppstadt is a modern enterprise with tradition. In 1965 Werner Doppstadt founded an agricultural company at Velbert, which today is a worldwide leading partner in the field of environmental technology.Competent, highly motivated employees plan, realize and produce recycling machines and plants – mobile and stationary – for processing various ...