Identification of threshold ...
Published by Sameer Dohare, Managing Director at EnviroChem Services (OPC) Pvt. Ltd.
Identification of threshold quantity of Oil in the feed of sand filter is depends on the various parameters like quality and quantity of sand, pH, temperature, backwash frequency, etc. Considering the feed conditions, in my knowledge, the effect of oil in the feed does not have major change on the filtration of suspended solids, however, the bed life reduces with requirement of quick backwash frequency, as the adsorbed oil degrades the soil quality.