Q9 (16 Marks)
Sewage system
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Repeated 5x in exams
MEKG • Written Exam
(a) Sketch and describe a biological sewage treatment system. (6)
(b) How does the biological Sewage Treatment Plant work? (6)
(c) What is understood by the term BOD? What are the factors that affect BOD? (4)
Appeared In:
Dec 2025Dec 2024 - 1Feb 2024Sep 2023Apr 2023