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Which among the following sewage treatment method has the problem of ponding, fly and odour nuisance?
- a)Upflow anaerobic sludge Blanket
- b)Advance oxidation process
- c)Trickling filter
- d)Extended aeration process
Correct answer is option 'C'. Can you explain this answer?
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Which among the following sewage treatment method has the problem of p...
The disadvantages of trickling filters are
- The head loss through these filters is high.
- Cost of construction of trickling filters is high.
- These filters cannot treat raw sewage and primary sedimentation is a must.
- These filters pose a number of operational troubles such as given below-
Fly Nuisance:
- The filter fly which develops in the filter particles may prove to be a nuisance, as the same may be carried away into the habitation.
- The problem may be controlled by flooding the filter with sewage for 24 hours or more.
Odour nuisance:
- Odours generally do not prevail in tricking filters using rotary distributions but however when fixed nozzles are used H2S and other odorous gases are frequently released from the sprays into the atmosphere. The usual remedy is to chlorinate the swage to prevent the formation of H2S gas, or to naturalise that which is already formed.
Ponding Trouble:
- Sometimes the voids in the filter media get clogged due to heavy growth of fungi and algae. This may result in ponding of the swage over the filter bed.
- This trouble posed by algae and fungi can be controlled by chlorinating the sewage, which kills the algae, thus causing unloading of the accumulated material. Other methods of controlling algae are to add copper sulphate to sewage and resting the bed for some time.
Other Important points:
UASBR:
UASBR:
- The Up-flow Anaerobic Sludge Blanket Reactor maintains a high concentration of biomass through the formation of highly settleable microbial sludge aggregates. The wastewater flows upwards through a layer of very active sludge to cause anaerobic digestion of organics of the wastewater.
- The process is suitable for both soluble waste waters and wastewaters containing particulate matter.
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Which among the following sewage treatment method has the problem of p...
Trickling Filter
Trickling filter is a sewage treatment method that involves passing sewage through a bed of porous media where microorganisms attached to the media break down the organic matter in the sewage. However, this method has some drawbacks that can lead to ponding, fly, and odor nuisance.
Ponding:
- Ponding occurs when the filter becomes clogged with organic matter and the effluent is unable to pass through the media effectively.
- This can result in the accumulation of sewage on the surface of the filter, leading to the formation of stagnant water pools.
Fly Nuisance:
- The organic matter present in the sewage can attract flies to the trickling filter.
- Flies can become a nuisance to nearby areas and may also contribute to the spread of diseases.
Odor Nuisance:
- As the organic matter in the sewage breaks down, it can produce foul-smelling gases such as hydrogen sulfide and ammonia.
- These odors can be released into the surrounding environment, causing discomfort to nearby residents.
In summary, while trickling filters are effective in treating sewage, they can be prone to ponding, fly, and odor nuisance if not properly managed and maintained.
Trickling filter is a sewage treatment method that involves passing sewage through a bed of porous media where microorganisms attached to the media break down the organic matter in the sewage. However, this method has some drawbacks that can lead to ponding, fly, and odor nuisance.
Ponding:
- Ponding occurs when the filter becomes clogged with organic matter and the effluent is unable to pass through the media effectively.
- This can result in the accumulation of sewage on the surface of the filter, leading to the formation of stagnant water pools.
Fly Nuisance:
- The organic matter present in the sewage can attract flies to the trickling filter.
- Flies can become a nuisance to nearby areas and may also contribute to the spread of diseases.
Odor Nuisance:
- As the organic matter in the sewage breaks down, it can produce foul-smelling gases such as hydrogen sulfide and ammonia.
- These odors can be released into the surrounding environment, causing discomfort to nearby residents.
In summary, while trickling filters are effective in treating sewage, they can be prone to ponding, fly, and odor nuisance if not properly managed and maintained.
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Which among the following sewage treatment method has the problem of ponding, fly and odour nuisance?a)Upflow anaerobic sludge Blanketb)Advance oxidation processc)Trickling filterd)Extended aeration processCorrect answer is option 'C'. Can you explain this answer?
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