Environmental & Water Quality Practice Problems
19 problems · Water Resources and Environmental Engineering
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Easymixingmass balance
A stream of 1 m3/s at 10 mg/L mixes completely with a stream of 2 m3/s at 4 mg/L. Assuming a conservative solute and no other sources or sinks, what is the final concentration?
All 19 problems
- Concentration After Mixing Two Streams · Easy
- Hydrogen Ion Concentration from pH · Easy
- BOD Removal Efficiency of Treatment · Easy
- Chlorine Feed Rate in Pounds per Day · Easy
- Hydraulic Conductivity from Pump Test · Hard
- Ultimate BOD from a Diluted Sample · Medium
- Total Hardness as CaCO3 · Easy
- Surface Overflow Rate of a Settling Basin · Medium
- Sludge Volume from Suspended Solids · Hard
- Chlorine CT Value for Disinfection · Easy
- Hydraulic Detention Time of a Basin · Easy
- BOD Population Equivalent · Easy
- First-Order Decay Concentration · Medium
- Sludge Age of an Activated Sludge Tank · Hard
- Food-to-Microorganism Ratio · Medium
- Alkalinity as CaCO3 from Bicarbonate · Medium
- Dissolved Oxygen Deficit in a Stream · Hard
- Clarifier Hydraulic Detention Time · Easy
- Full-Flow Sewer Capacity by Manning · Medium