1. A dairy processing plant needs a steady flow of 100 L of water per minute...
A penny is submerged in a glass of water and held up horizontally by a string. The top of the penny experiences a pressure of 300 N/m2 above atmospheric pressure. What pressure is incident on the bottom surface of the penny? A. just the pressure of the atmosphere B. about 150 N/m2 above atmospheric pressure C. 0 N/m2 D. about 300 N/m2 above atmospheric pressure The applied force to a hydraulic jack is 24 N to an area of 20...
L 2. Steady statemass balance: Water is flowing at steady state in a 0.1 meter-diameter pipe with a maximum velocity (turbulent profile) of 0.3 meters/sec. The pipe then goes through an expansion, to where it is then flowing in a 0.5 meter-diameter pipe, and the flow regime has changed from turbulent to laminar. In the second section of pipe, calculate the velocity as (a) block flow profile (Vavg), and (b) maximum velocity in laminar flow profile? HINT: you will need...
10. Write a one-page summary of the attached paper? INTRODUCTION Many problems can develop in activated sludge operation that adversely affect effluent quality with origins in the engineering, hydraulic and microbiological components of the process. The real "heart" of the activated sludge system is the development and maintenance of a mixed microbial culture (activated sludge) that treats wastewater and which can be managed. One definition of a wastewater treatment plant operator is a "bug farmer", one who controls the aeration...