Determine the activated sludge aeration volume required to treat 2.64 mgd with a BOD of 120 mg/l based on the criteria of a maximum BOD loading of 40 lb/1000 ft cubed/day and a minimum aeration period of 5 hr. Assuming an operating F/M of 0.2 lb BOD/day per lb of MLSS, calculate the MLSS to be maintained in the aeration tank. Estimate the operating sludge age (mean cell residence time), assuming an effluent suspended solids of 30 mg/l and the daily amount of waste sludge solids. Determine the diameter and side water depth of two identical final clarifiers for this activated sludge system.

Discussion questions for damien duff''s personal financial : Discussion Questions for Damien Duff's personal financial plan |

Compile an annotated bibliography of 40 entries : Compile an Annotated Bibliography of 40 entries |

Calculate the bod loading and days of winter storage avail : Facultative stabilization ponds with a total surface area of 6.0 ha serve a community with a waste discharge of 530 m cubed/d at a BOD of 280 mg/l. |

Compute the land area required for land disposal : Calculate the surface area required for a stabilization pond to serve a domestic population of 1000. Assume 80 gpcd at 210 mg/l of BOD. Use a design loading of 20 lb of BOD/acre/day. |

Determine the activated sludge aeration volume required : Determine the activated sludge aeration volume required to treat 2.64 mgd with a BOD of 120 mg/l based on the criteria of a maximum BOD loading of 40 lb/1000 ft cubed/day and a minimum aeration period |

What is the aeration time for an f/m of 0.35 : Determine the volume of three identical activated sludge tanks following primary clarification to aerate 36,000 m cubed/d with a BOD concentration of 180 mg/l at a BOD loading of 560 g/m cubed*d. |

Design speed station of the pc station of the pt deflection : A horizontal Curve is designed for a two lane mountainous terrain. The following data are known. intersection angle: 40 degrees tangent length: 436.76 ft Station on PI: 2700+10.65 fs=0.12 e=0.08 |

What is the trains velocity and what is its displacement : Suppose that the acceleration of the train during the interval time from t=2 to t=4 s is a 2t m/s^2, and at t = 2 s its velocity is v = 180 km/hr. What is the train's velocity at t = 4 s, and what is its displacement (change in position) from t = 2 s.. |

Figure if the authorities intend to spend exactly : Foxton village is 10 miles north of an abandoned road that goes from east to west grimley leaving. POINT OF abandoned road closest to Foston is 40 miles from grimley County authorities are to build a new road linking |

## What is the magnitude and direction of the resultant forceThe bend lies in a horizontal plane, and water enters from the west and leaves toward the north. Assuming no drop in pressure, what is the magnitude and direction of the resultant force acting on the bend |

## Find the gauge pressure at a second point in the lineAt one point in a pipeline, the water's speed is 3.00 m/s and the gauge pressure is 4.00×10^4 Pa. Find the gauge pressure at a second point in the line 11.0 m lower than the first if the pipe diameter at the second point is twice that at the first.. |

## Determine what is the composition and microstructureIt is desired to produce an iron-carbon allow that has a minimum hardness of 200 HB and a minimum ductility of 35% RA. Is such an ally possible. If so what its composition and microstructure |

## Determine amount of coal consumed during a 24-hour periodA coal-burning steam power plant produces a net power of 300 MW with an overall thermal efficiency of 32 percent. The actual gravimetric air-fuel ratio in the furnace is calculated to be 12 kg air/kg fuel. |

## Determine magnitude of tension t and x-y-z componentsIf the pulleys are fixed to the shaft, determine the magnitude of the tension T and the x,y,z componenet sof reaction at the smooth thrust bearing A and smooth journal bearing B. |

## What would be average length of queue and waiting timeAt a parking lot, vehicles arrive according to a Poisson process and are processed (parking fee collected) at a uniform deterministic rate at a single station. The mean arrival rate is 4 veh/min and the processing rate is 5 veh/min. |

## Determine the critical path-starting and finishing timesActivity Description Duration Immediate Predecessors ST Start milestone - Activity Description duration Inmdiate predesesor ST Start milestone - - A excavate st. 1 4 ST B Order & steel del. work 7 ST C Formwork st. |

## Determine what fair amount contractor should receiveDetermine what fair amount she should receive if she decides she want to be paid: a. In 2 equal installments - one immediately (at T=0) and one at the end of month 36. |

## What is the required flow rate of air through the turbineThe power output of the turbine is just 0.1 kW. If the process is adiabatic and steady, what is the required flow rate of air through the turbine if the exit state is 100 kPa and - 53 C. |

## A file of student records contains name sex m or f age ina file of student records contains name sex m or f age in years and marital status single or married for each student. |

## Compute required weight of coarse aggregate per cubic yardA concrete mix with a 3-inch slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard. |

## Determine the maximum absolute values of the shearDraw the shear and bending moment diagrams for the beam AB, and determine the maximum absolute values of the shear and bending moment. |

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