Nitrification is a biological process for removing NH3 from wastewater as NH4*: NH4+202NO3 + 2H + H₂O The first-order rate constant is given as k₁ = 0.47e0.095(T-15°C) -1 where k is in day and I is in °C. If the initial concentration of NH3 is 3.0 mol/m³, how long will it take to reduce the concentration to 0.80 mol/m³: (a) in the spring (T= 20°C)? days (b) in the winter (T= 10°C)? days Prex
Nitrification is a biological process for removing NH3 from wastewater as NH4*: NH4+202NO3 + 2H + H₂O The first-order rate constant is given as k₁ = 0.47e0.095(T-15°C) -1 where k is in day and I is in °C. If the initial concentration of NH3 is 3.0 mol/m³, how long will it take to reduce the concentration to 0.80 mol/m³: (a) in the spring (T= 20°C)? days (b) in the winter (T= 10°C)? days Prex
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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![### Nitrification Process for Removing Ammonia from Wastewater
**Nitrification** is a biological process used to remove ammonia (NH₃) from wastewater by converting it to ammonium (NH₄⁺). The chemical reaction involved in this process is as follows:
\[ \text{NH}_4^+ + 2\text{O}_2 \rightarrow \text{NO}_3^- + 2\text{H}^+ + \text{H}_2\text{O} \]
The first-order rate constant \(k_1\) for this reaction is given by the equation:
\[ k_1 = 0.47e^{0.095(T - 15^\circ\text{C})} \]
where \(k_1\) is in day⁻¹ and T is in °C.
If the initial concentration of NH₃ is 3.0 mol/m³, determine the time required to reduce the concentration to 0.80 mol/m³ under different temperature conditions.
**Questions:**
(a) **In the spring (T = 20°C)?**
- Input Box for Answer: \[ \boxed{\text{days}} \]
(b) **In the winter (T = 10°C)?**
- Input Box for Answer: \[ \boxed{\text{days}} \]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc8fc0129-1b11-49f3-869a-8ad1c019dc55%2F7a5f2aba-2c9e-45ea-bb17-d84eb51c0431%2Fq08sad_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Nitrification Process for Removing Ammonia from Wastewater
**Nitrification** is a biological process used to remove ammonia (NH₃) from wastewater by converting it to ammonium (NH₄⁺). The chemical reaction involved in this process is as follows:
\[ \text{NH}_4^+ + 2\text{O}_2 \rightarrow \text{NO}_3^- + 2\text{H}^+ + \text{H}_2\text{O} \]
The first-order rate constant \(k_1\) for this reaction is given by the equation:
\[ k_1 = 0.47e^{0.095(T - 15^\circ\text{C})} \]
where \(k_1\) is in day⁻¹ and T is in °C.
If the initial concentration of NH₃ is 3.0 mol/m³, determine the time required to reduce the concentration to 0.80 mol/m³ under different temperature conditions.
**Questions:**
(a) **In the spring (T = 20°C)?**
- Input Box for Answer: \[ \boxed{\text{days}} \]
(b) **In the winter (T = 10°C)?**
- Input Box for Answer: \[ \boxed{\text{days}} \]
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