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प्रश्न
What is sludge?
उत्तर
- Semi-solids such as faeces that settle down during wastewater treatment are called sludge.
- This sludge is removed using a scraper and then transferred to a tank where it is decomposed by anaerobic bacteria to produce biogas.
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संबंधित प्रश्न
Describe the steps involved in getting clarified water from wastewater.
Explain how sludge is treated.
Name two chemicals used to disinfect water.
Explain the function of bar screens in a wastewater treatment plant.
Study the following statements about ozone:
- It is essential for breathing of living organisms.
- It is used to disinfect water.
- It absorbs ultraviolet rays.
- Its proportion in air is about 3%.
Which of these statements are correct?
Sewage is mainly a
Which of the following is/are products of wastewater treatment?
The system of a network of pipes used for taking away wastewater from homes or public buildings to the treatment plant is known as
State whether the following statement is True or False. In case a statement is false, write the correct statement.
Sewage is a solid waste that causes water pollution and soil pollution.
State whether the following statement is True or False. In case a statement is false, write the correct statement.
Used water is wastewater
