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Hello, I need help to releasing gold lock up from my CIL circuit's carbon. I want to run more frequent elution in order to get more gold out but we seem to only recover what we're putting in only. My gold locks up in the tanks and it increases each month. I and at the point where I want to keep it where it is or decrease it. Plant feed grade is stable.
My elution efficiencies are between 85 and 93%. My biggest challenge is the carbon concentration in tanks is very high hence more gold on inventory but reasons for the high concentration is due to that there's too much sand in my system currently caused by the bad grind I've had recently so all the carbon settles at the bottom of the tanks with the sand particles.
I've tried picking up densities to reclaim all the carbon that is at the bottom of the tanks but it's not coming up as expected or as seen from the samples taken at the tanks drain valves. And the loadings on those samples are high but I can't elute the carbon as it is not reporting to the loaded carbon vessel.
What do I do next? Thank you.