Botanica - Pots, Planters and Water Features - South
2021-7-7 · Rand Water uses horizontal flow tanks with retention times of 4 hours and produces water with a turbidity of 5 NTU at the outlet weirs which is considered acceptable for filtration. Depending on the turbidity of the incoming raw water, between 95% and 97% of the suspended particles are removed during sedimentation. Sludge disposal
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