Milling and Sieving
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Trituradora de mandíbulas BB 300

"la muestra" (4)

No. 28
Los "grandes" de RETSCH para el laboratorio y la industria
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

Folletos (2)

Folletos de aplicaciones (4)

Información técnica (1)

Informes de pruebas de laboratorio (14)

Informes técnicos (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.
La Fragmentación
Por lo general se asocia a la noción "fragmentación", el machacamiento, de sustancias sólidas mediante fuerza mecánica. Pero también la división de líquidos en gotas o de gases en bollas representa un proceso de fragmentación.

Manuales (1)

Videos (1)

Subject to technical modifications and errors