An aeration tank receives 10,000 m3/d of wastewater with a BOD loading of 2100 kg/d. The aeration time is 4 hr. The mass of MLSS in the tank is 6130 kg; and it is estimated that 613 kg of sludge is wasted daily. Determine: (i) Aeration tank volume (ii) Dimension of aeration tank (state your assumptions) (iii) MLSS concentration in the aeration tank (iv) Solid Retention Time (SRT) (v) F/M ratio (vi) Check if the plant complies with Standard A; given the flowrate of supernatant in final clarifier is 9950 m3/d, with a BOD loading of 150 kg/d. (vii) Comment about the concentration of solids in the supernatant of the final clarifier, and the BOD concentration in the recycle stream.
An aeration tank receives 10,000 m3/d of wastewater with a BOD loading of 2100 kg/d. The aeration time is 4 hr. The mass of MLSS in the tank is 6130 kg; and it is estimated that 613 kg of sludge is wasted daily. Determine: (i) Aeration tank volume (ii) Dimension of aeration tank (state your assumptions) (iii) MLSS concentration in the aeration tank (iv) Solid Retention Time (SRT) (v) F/M ratio (vi) Check if the plant complies with Standard A; given the flowrate of supernatant in final clarifier is 9950 m3/d, with a BOD loading of 150 kg/d. (vii) Comment about the concentration of solids in the supernatant of the final clarifier, and the BOD concentration in the recycle stream.
Chapter2: Loads On Structures
Section: Chapter Questions
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![An aeration tank receives 10,000 m3/d of
wastewater with a BOD loading of 2100 kg/d.
The aeration time is 4 hr. The mass of MLSS in
the tank is 6130 kg; and it is estimated that 613
kg of sludge is wasted daily. Determine:
(i) Aeration tank volume
(ii) Dimension of aeration tank (state your
assumptions)
(iii) MLSS concentration in the aeration tank
(iv) Solid Retention Time (SRT)
(v) F/M ratio
(vi) Check if the plant complies with Standard A;
given the flowrate of supernatant in final clarifier
is 9950 m3/d, with a BOD loading of 150 kg/d.
(vii) Comment about the concentration of solids
in the supernatant of the final clarifier, and the
BOD concentration in the recycle stream.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5c1c5b05-0801-41e9-b9f2-ae3914f0ab36%2F5cef7515-8461-411f-98bd-7ca764641353%2Fmg11qi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:An aeration tank receives 10,000 m3/d of
wastewater with a BOD loading of 2100 kg/d.
The aeration time is 4 hr. The mass of MLSS in
the tank is 6130 kg; and it is estimated that 613
kg of sludge is wasted daily. Determine:
(i) Aeration tank volume
(ii) Dimension of aeration tank (state your
assumptions)
(iii) MLSS concentration in the aeration tank
(iv) Solid Retention Time (SRT)
(v) F/M ratio
(vi) Check if the plant complies with Standard A;
given the flowrate of supernatant in final clarifier
is 9950 m3/d, with a BOD loading of 150 kg/d.
(vii) Comment about the concentration of solids
in the supernatant of the final clarifier, and the
BOD concentration in the recycle stream.
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