Determine the belt width (m) of a belt filter press (BFP) if the BFP produces a sludge cake of 22% solids.

An activated sludge WWTP produces an average of 100,000 gallons per day of primary sludge at 5% solids and 250,000 gallons per day of WAS at 1.1% solids. If the WAS is thickened to 6.0% solids by dissolved air flotation and then combined with the primary sludge prior to dewatering, what is the quantity (lb/d) and solids concentration of the blended sludge (% solids)? Determine the belt width (m) of a belt filter press (BFP) if the BFP produces a sludge cake of 22% solids. Assume that the BFP operates 5 days a week for 8 hours each day. The solids in the filtrate is assumed to be 1,800 mg/L and the addition of polymer for conditioning contributes negligible weight. Assume a washwater rate of 25 gpm/meter of belt and hydraulic loading rate = 45 gpm/meter of belt.

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set up and solve a case-study example of the light-intensity distribution in a photochemical reactor.

Photochemical reactor modeling: a case-study problem. Although radiation is important in heat transfer, an analogous model can be used in the design of photochemical reactors. The modeling of these reactors….

Write a critique on this technique of secondary-emission measurement.

Secondary-emission measurement: a case-study problem. An indirect way of measuring of secondary emission from ponds or large bodies of water used in waste treatment is to measure the concentration and….

set up a mass transfer model and evaluate the variation of the local mass transfer coefficient at various locations in the plate.

Chemical vapor deposition (CVD) on an inclined susceptor: a case-study problem. An important application of convective mass transfer theory is in CVD processes employed to coat surfaces with thin films….