EK-General : 2020/OCT/05
Question
Q5. Describe the principle of operation of a biological sewage treatment plant. (4)
(b) Explain how anaerobic conditions can occur within a sewage treatment plant, stating the hazards that may be encountered. (4)
(C) Explain the meaning and significance of the term biological oxygen demand (2)
Asked in Year/Month/Ques No.
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