Q. Which of the following processes is not used for water reduction?

View solution

Q. Sand drying bed is used for filtration.

View solution

Q. How many products are obtained after dewatering?

View solution

Q. The liquid has high contents of phosphorus and nitrogen, if the sludge has been______

View solution

Q. Sludge treatment reduces the formation of struvite scales in pipes.

View solution

Q. Which of these is not a method of digestion?

View solution

Q. Anaerobic digestion is carried out in ____

View solution

Q. What is the temperature to be maintained for thermophilic digestion?

View solution

Q. What is the duration of sludge in tanks for mesophilic anaerobic digestion?

View solution

Q. Which of the following is not a product of anaerobic digestion?

View solution

Q. Which of the following is an advantage of anaerobic digestion?

View solution

Q. _________ is an aerobic process of mixing sewage sludge with agricultural by-product sources.

View solution

Q. Which of the following processes is rarely used?

View solution

Q. What is the thickened concentration of the primary sludge?

View solution

Q. What is the thickened concentration of the trickling filter sludge?

View solution

Q. What is the thickened concentration of the thickened sludge from the rotating biological contractor?

View solution

Q. What is the thickened concentration of air activated sludge?

View solution

Q. What is the thickened concentration of extended aeration sludge?

View solution

Q. What is the thickened concentration of high purity oxygen activated sludge?

View solution

Q. What is the thickened concentration of anaerobically digested primary sludge from primary digestor?

View solution