The order and combination of any three of the unit operations to produce the highest recovery and purity of ferrous material.

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Membrane filtration, operated in a dead-end mode, is used to treat secondary effluent. If the HPC in the effluent increased from 5 org/L to 200 org/L, after an extended period of operation, estimate the number of broken fibers for the following conditions. The influent flowrate and organism count are 4000 m3/d and 6.7×107 org/L, respectively. The membrane bundle contains 5000 individual fibers. If the influent and effluent turbidity values under normal operation are 4 and 0.25 NTU respectively, estimate the increase in the effluent turbidity assuming the increase could be measured.

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Chapter 5, Problem 5.19P

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The order and combination of any three of the unit operations to produce the highest recovery and purity of ferrous material.

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Membrane filtration, operated in a dead-end mode, is used to treat secondary effluent. If the HPC in the effluent increased from 5 org/L to 200 org/L, after an extended period of operation, estimate the number of broken fibers for the following conditions. The influent flowrate and organism count are 4000 m3/d and 6.7×107 org/L, respectively. The membrane bundle contains 5000 individual fibers. If the influent and effluent turbidity values under normal operation are 4 and 0.25 NTU respectively, estimate the increase in the effluent turbidity assuming the increase could be measured.

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