Q. _________ is defined as a volume in ml occupied by 1 gram of solid in the mixed liquor after 30 minutes of settling.

View solution

Q. The design value of food to microorganism ratio in the tapered aeration sludge process is ___________

View solution

Q. Which of the following sludge process has maximum aeration period?

View solution

Q. The maximum BOD removal efficiency of the Step aeration process of the activated sludge system is ___________

View solution

Q. BOD of sewage is dependent on food to microorganism ratio.

View solution

Q. _________ is the time at which sewage is detained in the aeration tank.

View solution

Q. Which of the following has minimum hydraulic retention time?

View solution

Q. The design solid surface loading in an activated sludge process is ___________

View solution

Q. Which of the following plant nutrient is not found in municipal sewage?

View solution

Q. The design pressure of ____ is applied on pressure type flotation device.

View solution

Q. The design Hydraulic loading rate of the gravity thickener is _______ m³/m²/day.

View solution

Q. Which of the following process is not involved in sludge thickening?

View solution

Q. 7% of solids concentration of thickened sludge is obtained from gravity thickener. What is the type of sludge?

View solution

Q. Which of the following is not used for drying of sludge?

View solution

Q. In which of the following method, the sludge is rotated for dewatering process?

View solution

Q. The dewatered sludge cannot be disposed by ___________

View solution

Q. In which of the following process, the sludge is dried and disposed in land?

View solution

Q. Which of the following is not a drying bed?

View solution

Q. Which of the following is not suitable for dewatering of raw sludge?

View solution

Q. Which of the following is not a part of dewatering process?

View solution