Design an RO WTP to meet the following criteria.

Design an RO WTP to meet the following criteria. Influent feed TDS = 3000 mg/L. Finished water produced flow rate = 1.5 MGD. TDS in treated water = 300 mg/L. Temperature of the feed = 20∘C. Water recovery factor (r) = 90% and the salt rejection = 95%. Design pressure = 600 psi and water flux rate = 15 gpd/ft2. Packing density = 250 ft2/ft3. Calculate the following parameters:

a. TDS in the permeate (mg/L).

b. TDS in the concentrate stream (mg/L) assuming split treatment.

c. Membrane area (ft2) using split treatment.

d. Total module volume (ft3).

e. Total number of modules.

f. Number of pressure vessels.

g. Water power (hp), brake power (hp) and motor power (hp).

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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….