Answer / kang chuen tat (malaysia - pen

Answer 68 – (a) BOD = (8.8 - 5.9) (300 / 30) = 29 mg / L.

(b) BOD = (8.8 - 4.2) (600 / 100) = 27.6 mg / L.

(c) BOD = (29 27.6) / 2 = 28.3 mg / L.

(d) NBOD = 45 - 28.3 = 16.7 mg / L.

The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS 61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.

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