decide true/false statement 10. The recycle ratio, RQ, in an activated sludge pr

Question

decide true/false statement

10. The recycle ratio, RQ, in an activated sludge process depends on the desired dissolved oxvgen concentration and the concentration of the settled sludge in the recycle flow as measured by the sludge density index (SDI) For significant nitrification to occur, the hydraulic detention time of an activated sludge process must be at least 10 davs. 12. Tapered aeration is identical to the conventional activated sludge process except that the aeration devices are spaced along the length of the reactor basin in accordance with the oxvgen demand Waste activated sludge is the net mass of cells produced daily, which represents the mass of cells that must be disposed each day. 13.

Explanation / Answer

10) True. The recycle ration depends on sludge density index which decides how much volume of ater should return back and it also depends on the desired dissolved oxygen concentration.

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.