Which of the following sewage treatment method has inherent problems of odour, ponding and fly nuisance?

USAB system
Activated sludge process
Trickling filters
Stabilization ponds

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 3 : Trickling filters

Operational Troubles in Standard rate Trickling Filter are:

1. Fly nuisance: Due to the presence of insects over the filter media, the entire media is flooded with flies which makes the operation of filter difficult. Moreover, theses flies moves along with waste water in the filter medium leading to choking of filter, thereby affects the working of trickling filter.

2. Ponding Problem: Due to growth of algae and fungi in the voids of the filter media that leads to ponding of the waste water over the filter media.

3. Odour problem: This problem is generally found if spray nozzle method of distribution method is adopted.

4 views Answered 2022-09-04 04:29

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