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Sludge Disposal Methods Video Lecture | Civil Engineering Optional Notes for UPSC

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FAQs on Sludge Disposal Methods Video Lecture - Civil Engineering Optional Notes for UPSC

1. What are the different methods of sludge disposal mentioned in the article?
Ans. The article mentions methods such as land application, incineration, composting, and landfilling as ways to dispose of sludge.
2. How does land application work as a sludge disposal method?
Ans. Land application involves spreading sludge on agricultural land to provide nutrients for crops. However, this method must be carefully managed to prevent environmental pollution.
3. What is the process of incineration for sludge disposal?
Ans. Incineration involves burning sludge at high temperatures to reduce its volume and destroy pathogens. This method is effective in reducing the volume of sludge but can be expensive.
4. Can sludge be composted for disposal?
Ans. Yes, sludge can be composted by mixing it with other organic materials and allowing it to decompose. This process can produce a nutrient-rich soil amendment.
5. What are the potential environmental impacts of landfilling sludge?
Ans. Landfilling sludge can pose risks of groundwater contamination and methane gas emissions. Properly designed and managed landfills are necessary to minimize these environmental impacts.
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