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Slurry Transportation of Red Mud at High Concentration: A Case Study

Vivek Kumar Singh, D. Panda


Rheological studies have been conducted of red mud-sand-lime grit mixture (supplied by M/S Nalco, Damanjodi, Odisha) using Haake RV rotational rheometer. The slurry shows Newtonian behavior upto 50% concentration by weight and non-Newtonian Bingham behavior thereafter. Beyond 65% Cw, additives are used to reduce pressure drop. The results show that it is economical to transport red mud mixture slurry at 60% concentration by weight as against 20% which is practiced at present.

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