To treat agricultural wastewater, Jack has built a lagoon that gets oxygen from floating surface aerators or submerged diffuses. It requires less land space, is 6 to 20 feet deep, and has a detention time of 5 to 20 days.
Which type of lagoon has Jack built?
A. partial-mix aerated lagoon B. anaerobic lagoon C. aerobic lagoon D. facultative lagoon E. completely mixed aerated lagoon
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right answer is partial mix aerated lagoon
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