FE Review-Environmental You are designing an aerobic system to biodegrade benzene (C,H t ,). The biodegradation follows the chemical reaction below (note that you must balance this equation). Hie benzene concentration is 500 mg/L. (C =12. H = 1,0 = 16) CtHi + £>>• COt + H ; 0 The amount of oxygen (mg/L) that wli will be consumed to completely biodegrade the benzene is most nearly: (A) 200 (8) 500 (C) 800 (D) 1,600 1
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FE Review-Environmental Balance Equation for Aerobic System C 6 H 6 +O 2 -> CO 2 +H 2 O 11
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FE Review-Environmental 4. A reservoir is 80 ft deep and covers 40 acres. The volume of the reservoir is 500 million gallons, and the pipeline has a capacity of 9 ft 3 /sec. Most nearly, what is the detention time? (A) 1.2 days (B) 11 days (C) 86 days (D) 640 days 15
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