Which of the following waste disposal tasks are achieved by a septic tank with its dispersion tranch ?1. Aerobic sluge digestion2. Settling and anaerobic sludge digestion3. Anaerobic sewage stabilisation4. Bio-oxidation of effluentSelect the correct answer using the codes given below :

Which of the following waste disposal tasks are achieved by a septic t

1.	Which of the following waste disposal tasks are achieved by a septic tank with its dispersion tranch ?1. Aerobic sluge digestion2. Settling and anaerobic sludge digestion3. Anaerobic sewage stabilisation4. Bio-oxidation of effluentSelect the correct answer using the codes given below :
A.	1 and 3
B.	3 and 4
C.	2 and 4
D.	1 and 4
Answer» D. 1 and 4

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Which of the following waste disposal tasks are achieved by a septic tank with its dispersion tranch ?1. Aerobic sluge digestion2. Settling and anaerobic sludge digestion3. Anaerobic sewage stabilisation4. Bio-oxidation of effluentSelect the correct answer using the codes given below :

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