Answered: The ways of desalinating sea water are…

Engineering

Civil Engineering

The ways of desalinating sea water are distillation, reverse osmosis, electro dialysis and ion exchange

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter14: Ocean Thermal Energy Conversion And Ocean Salinity Gradient Energy

Section: Chapter Questions

Problem 20P

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The ways of desalinating sea water are distillation, reverse osmosis, electro dialysis and ion exchange. Explain which of the method is suitable for a community with high energy inefficiency.

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Can you please help me in answering this question. thank you A river, flowing at 1.5 m3/s, is polluted with the pesticide permethrin and flows into a lake (100 m x 100 m 2.5 m). The steady state concentration of permethrin leaving the lake is 1.4 ppm and the average cross-sectional area of the river is 2.7 m2. The half-life of permethrin in this environment is 19 hrs. What is the concentration of permethrin entering the lake and what distance downstream of the outlet would the concentration be less than 1 ppm?