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. If the average liquid depth is 4 ft, calculate the retention time of the wastewater based on influent flow. The effluent is spread on grassland by spray irrigation at a rate of 2.0 in/week (54,300 gal/acre/wk). Compute the land area required for land disposal. In these computations, assume no evaporation or seepage losses from the ponds.

Why is compliance with international trade laws important : You have been asked to study the issues involved in getting your company totally in compliance with international rules and regulations governing overseas trade. Why is compliance with international trade laws important? |

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.. |

## Estimate the constant rate of withdrawal from reservoirEstimate the constant rate of withdrawal (in m^3/s) from a 1375 ha reservoir in a month of 30 days during which the reservoir level dropped by 0.75 m in spite of an average inflow into the reservoir of 0.5 Mm^3/day. |

## Determine how deep will the water be on the flash boardsThe pipes holding the boards were placed 10 ft apart across the dam. There were 20 pipes and each one was designed to fail under a bending moment of 1625 ft-lb how deep will the water be on the flash boards when failure occurs |

## How much energy in horsepower is lost by the waterA pipeline 1200 ft long and 8 in. in diameter has at its inlet point 75ft of available hydraulic energy with respect to the reference level. The velocity in the pipe is 5 fps: the pressure at its end is 12psi. |

## Determine what is the final specific volume of the systemA closed system of 0.123kg undergoes a frictionless, quasi-static process along the path PV=C from 100kpa to a final state where the volume is twice the initial volume. |

## Calculate the total axial deformation in the aluminum rodsA rigid rectangular shelf is suspended from a rigid ceiling by mean of four rods of diameter .505 inches. The two rods to the left L1 and L2, are made of steel. The two rods to the right R1 and R2 are made of aluminum. |

## Calculate the direct runoff using the scs methodA hyetograph has a uniform rainfall intensity of 1.5 in/hr in the first hour, 2.0 in/hr in the second, and 0.75 in/hr in the third. Calculate the direct runoff (in inches) using the SCS method. Assume a curve number of 65. |

## How far does the platform float above the water surfacea floating platform is supported at each corner by a hollow sealed cylinder 1 m in diameter, the platform itself weighs 25kN in air and each cylinder weighs 1.2kN per meter of length. |

## Calculate change in ph of rainwater resulting from increaseCalculate the change in pH of rainwater resulting from an increase in the PCO2 from 10-3.5 atm to 10-3.0 atm due to fossil fuel emissions. |

## At what rate is the string being paid outa child is flying a kite at a height of 40 ft and the kite is moving horizontally at a rate of 3 ft/sec. if the string is taut, at what rate is the string being paid out when the length of the string is 50 feet. |

## What type of drilling and sampling equipment would recommendA one-story, 50-m wide X 90-m long manufacturing building is to be built on a site underlain by medium dense to dense silty sand with occasional gravel. This soil probably has better than-average engineering properties and average uniformity. |

## The corresponding increase in the diameter of the vesselA spherical gas container having an outer diameter of 15 ftand a wall thickness of 0.90 in. is made of a steel for whichE =29*106 psi and v = 0.29. Knowingthat the gage |

## Determine the time it takes the block to reach position bWhat is the maximum size aggregate which can be used in concrete for the following conditions 1. slabs on grade 6 inch #2- slab on grade 4 inch. |

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd