9 4 An environmental engineer has obtained a bacteria culture from a municipal water sample and allowed the bacteria to grow within a petri dish. The following data were obtained: Time (min) Bacteria Concentration (ppm) Time (min) Bacteria Concentration (ppm) 0 6 6 63 1 7 102 2 15 8 153 3 19 9 220 32 10 328 5 42 Enter the data into an Excel worksheet and plot the data using arithmetic scale, semi-log coordinates, and log-log coordinates. Use...
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...