Calculate the HRT (in hours) for this plant?

Calculate the F/M ratio for this plant. Include the units.?

Based on the SRT, is this plant a conventional or extended aeration process?

Calculate the SVI. Include the units?

Calculate the mass of sludge wasted each day. Include the units?

Calculate the recirculation ratio?

Calculate the volume of sludge wasted each day. Include the units?

Calculate the oxygen requirements for the aerator. Include the units?

If wasting from the aerator, what is the wasting flow rate each day? Include the units.?
 

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QUESTION 3b A village has a small activated sludge plant to treat its wastewater. The average daily flow is 10.00 ML per day and the average soluble BOD5 after primary settling is 500 mg/L. The aeration tank has an effective volume of 5,000 m³. The plant operating parameters are as follows: MLSS = 2918 mg/L Settled sludge volume after 30 min = 200 mL/L Allowable BOD in the effluent = 25 mg/L Sludge age = 27 days Sludge wastage is from the clarifier. Remember to include the units in your answers as it counts for 10% of the marks. QUESTION 3b A village has a small activated sludge plant to treat its wastewater. The average daily flow is 10.00 ML per day and the average soluble BOD5 after primary settling is 500 mg/L. The aeration tank has an effective volume of 5,000 m³. The plant operating parameters are as follows: MLSS = 2918 mg/L Settled sludge volume after 30 min = 200 mL/L Allowable BOD in the effluent = 25 mg/L Sludge age = 27 days Sludge wastage is from the clarifier. Remember to include the units in your answers as it counts for 10% of the marks.

Answer rating: 100% (QA)

i Geven values are n 00 Q 10106 day 500 mgL Yo 500 42 Oc 27 days Vs 200ml L HRT 4 V 5000 ... View the full answer