Using chemical equations, determine the BOD, COD and TOC for 1 mole/L of C6H12O6
Using chemical equations, determine the BOD, COD and TOC for 1 mole/L of C6H12O6
A chemical plant produces wastewater containing (C3H10 N203) at a concentration of 50 mg/L. a) Determine the COD, TOC, BOD, NBODand ThOD values. Assume that the BOD first-order rate constant is 0.23 per day (base e). b) What are two criteria to be considered for the selection of sample dilution factor for the standard BOD5 test? Calculate the dilution factor based on these criteria.
what is the chemical oxygen demand (COD) and the biological oxygen demand (BOD) of a water? which one is always greater? why?
If the BOD (biochemical oxygen demand) of a water sample is 2 ppm, the COD (chemical oxygen demand) will be greater or less than 2ppm
1. (30 points) Determine the 1-day BOD (BOD) and ultimate CBOD (BOD, or Lo) for a wastewater whose 5-day BOD at 20 °C is 200 mg/L, when -0.23 day.
Question 1 Glucose metabolism can be represented by the following chemical reaction: C6H12O6(aq)+6O2(g)6CO2(g)+6H2O(l) H for the reaction is -2837 kJ/mole. Is this reaction endothermic or exothermic? Write an expression for the equilibrium constant for this reaction. Given that the value of the equilibrium constant is very large, would you expect this reaction to be fast or slow? Explain the effect on equilibrium of Increasing temperature Increasing pressure by decreasing the volume Decreasing concentration of oxygen Increasing the concentration of...
What are these chemical reactions balanced? 1. Sucrose (C6H12O6 (s)) → C (s) + H2O (l) 2. Solid iron + oxygen gas → solid iron (III) oxide 3.Solid zinc + aqueous copper (II) sulfate → solid copper + aqueous zinc sulfate 4. Hydrogen peroxide (H2O2) → water + oxygen gas
2. To determine the BOD in an industrial wastewater sample, a seeded BOD analysis was conducted; data are summarized in the table below. Ten mL of wastewater was added per 300 mL bottle to determine the dissolved oxygen demand of the aged, settled wastewater seed (test A). The seeded test bottles (test B) contained 2.5 mL of industrial wastewater and 1.2 mL of seed wastewater a) What is the five-day BOD in this industrial wastewater? What is the k-value using...
10) Determine the size of two stage trickling filter using the NRC equations. Assume both filters have the same efficiency BOD removal and the same recirculation ratio. Other conditions are as follows o Wastewater temperature 20 C o Wastewater flow, Q 3785 n/d o Influent BODs 195 mg/l Design effluent BOD = 20mg/ o Depth of each filter 2m o Recirculation for filters 1 and 2, r 218 10) Determine the size of two stage trickling filter using the NRC...
The respiration of 1 mole of glucose is represented by the following equation C6H12O6 + 6O2 --> 6CO2 + 6H2O + 686 Kcal Where is the energy that is released or absorbed (depends on the reaction) found?
Determine the ultimate BOD (BODu) and 5-day BOD (BOD5) given that the BOD4 of a waste is 130 mg/L and K is 0.075 d-1 . Use yt=Lo(1-e-kt) and k=2.303(K).