System for treating drilling mud containing potassium chloride (

Hydraulic and earth engineering – Soil remediation – In situ contaminant removal or stabilization

Patent

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34135, 34166, 110246, 110346, 432111, F26B 324, F26B 1102

Patent

active

053724585

ABSTRACT:
A method is provided for treating used potassium chloride (KCl) drilling mud for disposal. The process comprises feeding the mud into one end of a rotary tube, advancing the mud through the rotating tube and heating the mud by cascading action using lifters, to expose it to a hot gas stream, thereby partially drying the mud to lumps, further modifying the lumps by contacting them with a burner flame to form clinker pellets, and finally contacting the clinker pellets with a second flame to complete the drying process, producing dried clinker pellets containing the majority of the KCl in the mud, the pellets having a structure that resists the leaching action of water. The pellets further lend themselves to being evenly distributed over fields, so that unwanted excessive concentrations of KCl can be avoided.

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