Calculate the degradable fraction Xd using the following equation:
The oxygen required is: O2/day=(a'Sr+1.4bXdXvt) Q
= [(0.55x1020) + (1.4x0.15x0.545x2500x1.4)]x47,600 galx8.34x10-6 =382 lb/day=16 lb/hour (7.3 kg/hour)
The power required is:
Other olive oil mills wishing to economize their operations would like to join the abovementioned combined anaerobic-aerobic plant for the treatment of their wastewater (45 m3/day), without affecting the plant's efficiency.
• Compute the new effluent from the anaerobic process assuming (Xv) remains the same;
what will the new gas production be?
• What modifications to the aerobic process must be made to maintain the same effluent quality? Assume the sludge settling characteristics are the same as originally and the volatile content of the sludge is 75%.
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