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A secondary circular clarifier is 50 feet in diameter and 37 feet high. The clarifier has...
1. A circular secondary clarifier (a.k.a. a final clarifier) is to be designed for an activated...
1. A circular secondary clarifier (a.k.a. a final clarifier) is to be designed for an activated sludge treatment plant serving a municipality. The state regulatory agency criteria for final clarifiers used for activated sludge are: Peak SOR = 1,200 gal/day-ft2 Average SOR = 500 gal/day-ft2 Peak solids loading 50 lb/day-ft Peak weir loading-30,000 gal/day.ft The average flow to the aeration basin prior to junction with the recycle line is 3.5 MGD ·The recycled sludge flow is 30 percent of the...
Problem 7) Determine the recommended size of a new circular secondary clarifier for an activated-...
Problem 7) Determine the recommended size of a new circular secondary clarifier for an activated-sludge system with a design flow of 26,000 m3 /d with a peak hourly flow of 32,000 m3 /d. Use maximum overflow rates of 33 m3 /m2 /day at design monthly flow and 66 m3 /m2 /day at peak hourly flow. The minimum side water depth is 10 ft (3.1 m), 11 ft for a 50-ft diameter tank, and 12 ft for 100-ft diameter tank or...
The oxidation ditch is followed by a clarifier with a 16 foot diameter and two feet...
The oxidation ditch is followed by a clarifier with a 16 foot diameter and two feet of sludge in the bottom at 6,000 mg/L MLSS AND a sludge return line that is 12 inches in diameter and 100 feet long that contains MLSS at 8,000 mg/L. The return line is flowing full. What is the pounds of biomass weight in the clarifier and the return line?
Given: There is a wastewater treatment plant that has a Primary Clarifier, Activated Sludge, Secondary clarifier...
Given: There is a wastewater treatment plant that has a Primary Clarifier, Activated Sludge, Secondary clarifier and the average daily flow was 1 mgd. Calculate the volume needed if the activated sludge is 24 hours 10 Mgal 100 Mgal 1 Mgal 1000 Mgal
23. A 50' x 70' commercial storage building with no windows is 8 feet tall and...
23. A 50' x 70' commercial storage building with no windows is 8 feet tall and requires 2 coats of paint. If the paint covers 200 square feet per gallon-SF/gal and waste is 10% how many gallons of paint are required? (5 points) gal 24. A 50' x 70' kitchen in a commercial building requires 9" x 9" vinyl tiles. Assuming 10% waste how many tiles are required? (5 points) tile 25. If the adhesive for the same kitchen has...
23. A 50' x 70' commercial storage building with no windows is 8 feet tall and...
23. A 50' x 70' commercial storage building with no windows is 8 feet tall and requires 2 coats of paint. If the paint covers 200 square feet per gallon-SF/gal and waste is 10% how many gallons of paint are required? (5 points) gal 24. A 50' x 70' kitchen in a commercial building requires 9" x 9" vinyl tiles. Assuming 10% waste how many tiles are required? (5 points) tile 25. If the adhesive for the same kitchen has...
A round pipe full of water is 100 feet high. The pipe diameter is 2'- 0"....
A round pipe full of water is 100 feet high. The pipe diameter is 2'- 0". What is the pressure at the bottom of the pipe?
Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet per minute.
Gravel is being dumped from a conveyor belt at a rate of 30 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter is alwaysequal to its height. How fast is the height of the pile increasing when the pile is 18 feet high? Recall that the volume of a right circular cone with height h andradius of the base r is given by V=1/3*pi*r^2*hWhat isr requested rate of increase of...
(1 point) A circular swimming pool has a diameter of 10 m. The circular side of...
(1 point) A circular swimming pool has a diameter of 10 m. The circular side of the pool is 3 m high, and the depth of the water is 2.5 m. (The acceleration due to gravity is 9.8 m/s2 and the density of water is 1000 kg/m3.) How much work (in Joules) is required to: (a) pump all of the water over the side? 3367394.611 (b) pump all of the water out of an outlet 1 m over the side?
A gardener has 37 feet of fencing to be used to enclose a rectangular garden that...
A gardener has 37 feet of fencing to be used to enclose a rectangular garden that has a border 2 feet wide surrounding it (see the figure). Use this information to answer the following. 2 tt 2 11 (a) If the length of the garden is to be twice its width, what will be the dimensions of the g Length =□ feet (Round to the nearest tenth as needed.) Widthfeet
1. A circular secondary clarifier (a.k.a. a final clarifier) is to be designed for an activated sludge treatment plant serving a municipality. The state regulatory agency criteria for final clarifiers used for activated sludge are: Peak SOR = 1,200 gal/day-ft2 Average SOR = 500 gal/day-ft2 Peak solids loading 50 lb/day-ft Peak weir loading-30,000 gal/day.ft The average flow to the aeration basin prior to junction with the recycle line is 3.5 MGD ·The recycled sludge flow is 30 percent of the...
Given: There is a wastewater treatment plant that has a Primary Clarifier, Activated Sludge, Secondary clarifier and the average daily flow was 1 mgd. Calculate the volume needed if the activated sludge is 24 hours 10 Mgal 100 Mgal 1 Mgal 1000 Mgal
23. A 50' x 70' commercial storage building with no windows is 8 feet tall and requires 2 coats of paint. If the paint covers 200 square feet per gallon-SF/gal and waste is 10% how many gallons of paint are required? (5 points) gal 24. A 50' x 70' kitchen in a commercial building requires 9" x 9" vinyl tiles. Assuming 10% waste how many tiles are required? (5 points) tile 25. If the adhesive for the same kitchen has...
23. A 50' x 70' commercial storage building with no windows is 8 feet tall and requires 2 coats of paint. If the paint covers 200 square feet per gallon-SF/gal and waste is 10% how many gallons of paint are required? (5 points) gal 24. A 50' x 70' kitchen in a commercial building requires 9" x 9" vinyl tiles. Assuming 10% waste how many tiles are required? (5 points) tile 25. If the adhesive for the same kitchen has...
(1 point) A circular swimming pool has a diameter of 10 m. The circular side of the pool is 3 m high, and the depth of the water is 2.5 m. (The acceleration due to gravity is 9.8 m/s2 and the density of water is 1000 kg/m3.) How much work (in Joules) is required to: (a) pump all of the water over the side? 3367394.611 (b) pump all of the water out of an outlet 1 m over the side?
A gardener has 37 feet of fencing to be used to enclose a rectangular garden that has a border 2 feet wide surrounding it (see the figure). Use this information to answer the following. 2 tt 2 11 (a) If the length of the garden is to be twice its width, what will be the dimensions of the g Length =□ feet (Round to the nearest tenth as needed.) Widthfeet
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