Polymer is supplied to an industrial wastewater pretreatment plant at a concentration of 0.5lb/gal. The polymer feed pump delivers a flow of 0.1gpm and the water flow rate to the filter is 3000gpm....

Polymer is supplied to an industrial wastewater pretreatment plant at a concentration of 0.5lb/gal. The polymer feed pump delivers a flow of 0.1gpm and the water flow rate to the filter is 3000gpm. Calculate the dose (in mg/l) of polymer in the water applied to the filter.