Problems from large quantity fine sand and sludge ( waste earth ) still in waste water containers that from gravels separating machinery.
1. Frequent removal of fine sand and sludge in sedimentation tank.
2. No chemicals needed to save cost and waste earth can be sold with no further process and control.
3. Sludge dewatering machine is very much costly, using separating machine to separate water and sludge will reduce sludge rate up to 50 - 60% to fix the problem.
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