assessment of u s corps aerators in the san joaquin river for the port of stockton
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Assessment of U.S. Corps Aerators in the San Joaquin River for the Port of Stockton. September 2004 Jones & Stokes Russ Brown, Tom Trexler, Megan Robinson. Goals/Objectives. Determine the current level of performance of both aerators

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assessment of u s corps aerators in the san joaquin river for the port of stockton

Assessment of U.S. Corps Aerators in the San Joaquin River for the Port of Stockton

September 2004

Jones & Stokes

Russ Brown, Tom Trexler, Megan Robinson

goals objectives
Goals/Objectives
  • Determine the current level of performance of both aerators
  • Estimate the oxygen loads from the aerators and the oxygen transfer efficiency
  • Compare aerator performance to release of oxygen gas from jets and different aerator device (Biox Hose)
measurement efforts
Measurement Efforts
  • Measurements in Front of North Jets while Operating Both Aerators
  • Measurements in Front of South Jets while using Oxygen Gas
measurements and estimations
Measurements and Estimations
  • Measured Velocity and DO concentrations of upwelling and/or flow-away currents
  • Estimated flow-away or upwelling width and calculated flows
  • Estimated Oxygen Loads from upwelling or flow-away flows and DO pick-up (measured DO minus background DO)
summary
Both Aerators

DO Pick-up of 0.78 mg/l (Back. DO = 3.2 mg/l)

Total Flow-away Flow of 90 cfs

Total Oxygen Supply Rate of 402 lbs/day (assuming 40 ft flow-away width)

South Jets with Oxygen

DO Pick-up of 2.19 mg/l (Back. DO = 2.9 mg/l)

Avg. Upwelling Flow of 191 cfs

Avg. Oxygen Supply Rate of 2270 lbs/day

Oxygen Transfer Efficiency of 45%

Summary
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