What is the organic loading rate, in pounds per day per 1000 cubic feet, on a...
Problem 5 A primary effluent with Q- 1.0 MGD, BODs 138 mg/, and SS - 104 mg/l is treated by a single stage tricking filter with the following characteristics: 6 feet deep rock trickling filter media; design BOD loading of 50 lb/day/1000 ft3; design hydraulic loading of 0.30 gpm/ft2; recirculation ratio of 1.5. Determine: 1) the volume (ft3) and diameter (ft) of the trickling filter; 2) the effluent BOD concentration. Problem 6
Hydrology ENV 321 Homework #1 Due: Friday, September 6 at 1:00pm 1. Convert (show all conversion steps for full credit; convert only one unit for cach step as demonstrated in class): a) acre-feet/day to mgd (mgd is million gallons per day] b) cfs to cms c) inches/hr rainfall to mm/day rainfall d) short tons/acre-day to Mg/hectare-year [Mg is megagrams e) inches"F to cm/ C [be careful, this one may trick you] 2. Define the hydrologic cycle component and indicate how...
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...