Your contract with NYC requires you to advise the plant technicians on coagulant dosage control which processes 0.200 m^3/s of raw water. The ferric chloride used in the process is purchased in 55 gallon drums, and you call the ferric chloride "Iron Solution." Calculate the daily requirements for Iron Solution (in drums/d) that must be added to the raw water the achieve a dose of 90.0 mg Fe3+ per L of raw water. Assume that the Iron Solution contains 6.00% Fe3+ by mass (Iron Solution is mostly inert ingredients) and that the specific gravity of the Iron Solution is 1.220.
Your contract with NYC requires you to advise the plant technicians on coagulant dosage control which...
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...