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To solve this problem, we need to determine the rate of pollutant released in pounds per day based on the concentration and discharge information provided.

### Given:
- Concentration of pollutant: 10 mg/L
- Total discharge: 0.35 MGD (Millions of Gallons per Day)

We will proceed step by step:

1. **Convert MGD to liters per day:**
   - 1 gallon = 3.78541 liters
   - 0.35 million gallons = 0.35 × 1,000,000 gallons = 350,000 gallons
   - In liters: \( 350,000 \, \text{gallons/day} \times 3.78541 \, \text{L/gallon} = 1,324,893.5 \, \text{L/day} \)

2. **Calculate the total pollutant in milligrams per day:**
   - Concentration = 10 mg/L
   - Total pollutant = \( 10 \, \text{mg/L} \times 1,324,893.5 \, \text{L/day} = 13,248,935 \, \text{mg/day} \)

3. **Convert milligrams to pounds:**
   - 1 pound = 453,592.37 milligrams
   - Pollutant in pounds: \( \frac{13,248,935 \, \text{mg/day}}{453,592.37 \, \text{mg/pound}} = 29.21 \, \text{pounds/day} \)

### Final Answer:
The rate of pollutant released is **29.21 pounds per day**.

Would you like more details or have any questions? 

Here are some related questions to explore:
1. How would the pollutant release rate change if the concentration was halved?
2. What if the total discharge increased to 0.50 MGD?
3. How would the result differ if the pollutant concentration was given in ppm instead of mg/L?
4. Can the pollutant removal efficiency of the plant be calculated given additional data?
5. How does the conversion factor between gallons and liters affect the precision of calculations?

**Tip:** Always double-check unit conversions to ensure accuracy, especially when dealing with large-scale environmental calculations.

A sewage treatment plant discharges a pollutant with a concentration of 10 mg/L. The plant's total discharge is 0.35 MGD (millions of gallons per day). Determine the rate of pollutant released in pounds per day. Give your answer accurate to at least two decimal places.

Learn how to calculate the rate of pollutant released in pounds per day from a sewage treatment plant with a discharge of 0.35 MGD and a concentration of 10 mg/L. This step-by-step solution covers unit conversion and pollutant load calculations. Suitable for college-level environmental engineering and chemistry students.

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