Milling and Sieving
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Frantoio a mascelle BB 300

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Il campione (4)

No. 28
Think big but grind fine!
No. 05
Crushing: " We learnt it from nature"
No. 03
Comminution: "It all started with the impact and friction stone"
Nr. 13
Aufbereitung und Untersuchung von Baustoffen

Informazioni tecniche (1)

Istruzioni operative (1)

Reports applicativi (2)

Preparation of Soil, Sewage Sludge and Sediment Samples in a Wastewater Treatment Laboratory
The preparation of a mixture of organic and inorganic samples holds some difficulties: whereas sand, clay and stones can usually be ground to homogeneous samples with suitable laboratory mills, the high energy input can cause samples with organic components such as fat or starch to cake. Carsten Bunn, a laboratory technician at the waste water treatment laboratory BRW, has to deal with this problem every day. He treats samples which are taken from the sand traps of the wastewater treatment plants and consist of exactly that mixture. The sediments of household and industry waste water not only contain sand, clay or leaves but anything that people nowadays dispose of through the sewer system: cellulose, hair and especially food residues.
Size reduction within the context of sample preparation
In general “size reduction” is taken to mean the disintegration of solid substances by mechanical forces without altering their state.

Test Reports (14)

Video (1)

Soggetto a modifiche tecniche ed errori