The treatment facility is disinfecting 10 million gal/day of water in a 100,000 gal tank. Ozone is being used to kill Giardia in the water: the coefficient of specific lethality, k, is 1.8 L∙mg-1 ∙min-1 , and the coefficient of dilution, n, is 1. You are required to achieve 99.9% removal of Giardia in the disinfection tank, (i. e., N/N0 = 0.001). Assume the concentration of ozone, C, remains constant during the reaction.

You are making beer. the first step is filling the glass carboy with the liquid wort. the internal diameter of the carboy is 15 in., and you wish to fill it up to a depth of 2 ft. if your wort is drawn from the kettle using a siphon process that flows at 3 gpm, how long will it take to fill?

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.

What is creep? what is stress relaxation?