Wastewater contains 10 mg/L NH3. Its N concentration = _____ mg N/L. (Hint: atomic weight: N,...
- Wastewater contains 10 mg/L NH3. Its N concentration = _____ mg N/L. (Hint: atomic weight: N, 14 g/mole; H, 1 g/mole)
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Wastewater contains 10 mg/L NH3. Its N concentration
= _____ mg N/L. (Hint: atomic weight: N,...
A treatment plant has the following species in the influent wastewater: NH3-N = 24 mg-N/L, 0.13...
A treatment plant has the following species in the influent wastewater: NH3-N = 24 mg-N/L, 0.13 mg NO2-N/L, 0.41 mg NO3-N/L, and a pH of 7. Using MINEQL+5.0 available on the COE computers generate a single pC-pH diagram showing the species, NH4+, NH3(aq), NO2-, NO3-, H+ and OH- as a function of pH (from 0.5 to 13.5 in 26 steps). Answer the following question, which nitrogen species is predominating at pH 6 and which is predominating at pH 11?
Ammonia (NH3) is toxic to fish at a concentration of 0.01 mg/L NH3-N, but ammonium (NH:)...
Ammonia (NH3) is toxic to fish at a concentration of 0.01 mg/L NH3-N, but ammonium (NH:) has negligible toxicity. What is the maximum concentration (in mg/L) of total ammonia nitrogen (the sum of ammonia and ammonium) that can be in solution without causing toxicity at (a) pH 8 and at (b) pH 10? Note: "NH3-N" and "ammonia nitrogen" means that only the mass of the nitrogen atom is counted. That is, this is treating both ammonia and ammonium as having...
5.14 If the concentration of NH3 in air is 0.456 ugm-3 at 0 °C and 1 atm, what is its mixing ratio in ppbv? (Atomic weights of N and H are 14 and 1.01, respectively.) 5.14 If the concentratio...
5.14 If the concentration of NH3 in air is 0.456 ugm-3 at 0 °C and 1 atm, what is its mixing ratio in ppbv? (Atomic weights of N and H are 14 and 1.01, respectively.)
5.14 If the concentration of NH3 in air is 0.456 ugm-3 at 0 °C and 1 atm, what is its mixing ratio in ppbv? (Atomic weights of N and H are 14 and 1.01, respectively.)
Question 2 A clarified wastewater containing 5 mg/L NH3-N is to be breakpoint chlorinated. The water has an al...
Question 2 A clarified wastewater containing 5 mg/L NH3-N is to be breakpoint chlorinated. The water has an alkalinity of 100 mg/L as CaCOs. Determine i. The stoichiometric requirement for Cl2. ii. If the water is sufficiently buffered. The increase in dissolved solids to be expect. [15 marks) Question3 The pH of a 0.1 Msolution of sodium bicarbonate is adjusted to 7.0 with a strong acid. A 100 mL portion of this solution is obtained, and to this volume 100...
1. A wastewater sample contains 7.4 mg P/L PO, and 4.5 mg P/L P,0*. a. Calculate...
1. A wastewater sample contains 7.4 mg P/L PO, and 4.5 mg P/L P,0*. a. Calculate the total phosphorus as mg PL b. Find the concentrations of Poland P0,* in wastewater as mg PO/L and mg P.0. L, respectively.
6 MGD of wastewater with a dissolved oxygen concentration of 0.9 mg/L is discharged to a...
6 MGD of wastewater with a dissolved oxygen concentration of 0.9 mg/L is discharged to a river flowing at 40 ft'/sec. The river initially is saturated with oxygen. The saturation DO is 11.30 mg/L. The oxygen content of the river (mg/L) immediately after mixing is most nearly: (conversion factor: 7.48 gal= 1 ft') 1.30 9. 34 9.00 8.85 7.24 other, write your answer
6 MGD of wastewater with a dissolved oxygen concentration of 0.9 mg/L is discharged to a river...
A wastewater treatment plant does secondary treatment consisting of BOD oxidation and nitrification. What is the total n...
A wastewater treatment plant does secondary treatment consisting of BOD oxidation and nitrification. What is the total nitrogen concentration in the wastewater effluent if the wastewater contains 2 mg/L NH4+ and 10 mg/L NO3−. Report your answer in mg/L as N.
Element Atomic Weight C 12 Ca 40 H 1 N 14 Na 23 O 16 A...
Element Atomic Weight C 12 Ca 40 H 1 N 14 Na 23 O 16 A 1 millimole/L Sodium Lactate (NaC3H5O3) solution would be equal to what mg% concentration? 47 4.8 33.6 3.6 4.7 2.3 11.2 36 22 9.9 14 48 5.6 2.2 23
3. (40 points) The mass concentration in mg/L of a carbon compound (C6H12O6N2) measured in a...
3. (40 points) The mass concentration in mg/L of a carbon compound (C6H12O6N2) measured in a water sample is three times higher than NH3 mass concentration. The ThoD for both carbon and nitrogen oxidation are 384 mg/L. What is the concentration of NH3 (mg/L) in water sample? (Molecular weight: C6H1206Nz=208; NH; = 17; O2 = 32) Assume, NH3 concentration = x mg/L C6H12O6N2 concentration - 3x mg/L NH3 C6H12O6N2 + 02 NH3 + O2 → + CO2 + H2O +...
A wastewater treatment plant does secondary treatment consisting of BOD oxidation and nitrification. What is the...
A wastewater treatment plant does secondary treatment consisting of BOD oxidation and nitrification. What is the total nitrogen concentration in the wastewater effluent if the wastewater contains 2 mg/L NH4+ and 10 mg/L NO3−. Answer in mg/L as N.
Ammonia (NH3) is toxic to fish at a concentration of 0.01 mg/L NH3-N, but ammonium (NH:) has negligible toxicity. What is the maximum concentration (in mg/L) of total ammonia nitrogen (the sum of ammonia and ammonium) that can be in solution without causing toxicity at (a) pH 8 and at (b) pH 10? Note: "NH3-N" and "ammonia nitrogen" means that only the mass of the nitrogen atom is counted. That is, this is treating both ammonia and ammonium as having...
5.14 If the concentration of NH3 in air is 0.456 ugm-3 at 0 °C and 1 atm, what is its mixing ratio in ppbv? (Atomic weights of N and H are 14 and 1.01, respectively.)
5.14 If the concentration of NH3 in air is 0.456 ugm-3 at 0 °C and 1 atm, what is its mixing ratio in ppbv? (Atomic weights of N and H are 14 and 1.01, respectively.)
Question 2 A clarified wastewater containing 5 mg/L NH3-N is to be breakpoint chlorinated. The water has an alkalinity of 100 mg/L as CaCOs. Determine i. The stoichiometric requirement for Cl2. ii. If the water is sufficiently buffered. The increase in dissolved solids to be expect. [15 marks) Question3 The pH of a 0.1 Msolution of sodium bicarbonate is adjusted to 7.0 with a strong acid. A 100 mL portion of this solution is obtained, and to this volume 100...
1. A wastewater sample contains 7.4 mg P/L PO, and 4.5 mg P/L P,0*. a. Calculate the total phosphorus as mg PL b. Find the concentrations of Poland P0,* in wastewater as mg PO/L and mg P.0. L, respectively.
6 MGD of wastewater with a dissolved oxygen concentration of 0.9 mg/L is discharged to a river flowing at 40 ft'/sec. The river initially is saturated with oxygen. The saturation DO is 11.30 mg/L. The oxygen content of the river (mg/L) immediately after mixing is most nearly: (conversion factor: 7.48 gal= 1 ft') 1.30 9. 34 9.00 8.85 7.24 other, write your answer
6 MGD of wastewater with a dissolved oxygen concentration of 0.9 mg/L is discharged to a river...
3. (40 points) The mass concentration in mg/L of a carbon compound (C6H12O6N2) measured in a water sample is three times higher than NH3 mass concentration. The ThoD for both carbon and nitrogen oxidation are 384 mg/L. What is the concentration of NH3 (mg/L) in water sample? (Molecular weight: C6H1206Nz=208; NH; = 17; O2 = 32) Assume, NH3 concentration = x mg/L C6H12O6N2 concentration - 3x mg/L NH3 C6H12O6N2 + 02 NH3 + O2 → + CO2 + H2O +...
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