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See this lecture note attached. What is a common reason for observing deviations between MLVSS and Biomass VSS as SRT increases?

Use this balanced equation:   Note that this equation is made up just for this Question and is not correct stoichiometrically. Molecular weight of acetate (CH3COOH) is 60 g/mole. Molecular weight of cell material (C5H7O3N) is 129 g/mole. Molecular weight of oxygen (O2) is 32 g/mole. COD of acetate is 1.07 g COD/g substrate. 1 g of cells can be assumed to be 1 g VSS.

Determine how much energy can be produced as kJ/mole of electron.

This illustration was provided during the lecture to help you understand type of solid (A, B, or C in red color) generated during secondary treatment process. Questions from 4 to 10 describes type of solid (in a descriptive way or equation). Choose right solid type (A, B, or C in red color) for the given solid in the following questions. 

Determine the total VSS concentration as g VSS/m3.

If a wastewater treatment plant (WWTP) is NOT functioning properly, why might the oxygen levels in downstream water bodies decrease?

How does increasing the concentration of a disinfectant affect the CT value?

Fill the blanks about the types of organic carbon.

What is the typical unit used to express cell yield in wastewater treatment?

Substrate utilization rate curve is provided as below. The substrate utilization rate is approaching to its maximum, 1000 g/d/m3 as substrate concentration increases. Using the information provided, determine Ks in mg bsCOD/L. X = 100 mg VSS/L k = 10 mg bsCOD/mg VSS/d