Micro-organism ratio, Micro-organism ratio: Determine the F/M ratio (i...

Micro-organism ratio: Determine the F/M ratio (in units of lbs BOD5/lb MLSS-day) using data provided in the above example problem. Solution By definition, F/M = Q S

Explain the typical wastewater characteristics, Explain the Typical Wastewa...

Explain the Typical Wastewater Characteristics? Total Suspended Solids = 100 - 350 mg/L (200 mg/l is the typical value)    BOD 5 = 100-300 mg/L (200 mg/L is the typical val

Water absorption test - tests on stones, Water Absorption Test: In t...

Water Absorption Test: In this test cube specimen weighing approximate 50 grams are prepared and the test is carried out in the steps following: 1.    Note down the weigh

Write a short note on economic span of a bridge, Q. Write a short note on E...

Q. Write a short note on Economic Span of a Bridge? The span for which the total cost of bridge will be minimum is known as the economic span. The ratio of Cost of super str

What is initial prestress, What is Initial Prestress From the transfer ...

What is Initial Prestress From the transfer stage, tensile stresses in tendons apply compressive stresses in concrete. The initial value of  these stresses (in tendons or in co

DECK ENGINEERING CALCULATIONS, We need eng. calcs for a deck 17''x 10 feet...

We need eng. calcs for a deck 17''x 10 feet.attach to the guest house. calculations will be for 230 psi snow load . in the city of Mammoth lakes Ca. deck is supported for 3 girder

Block contouring,

Rolling - binder, Rolling - Binder: The layer thickness is 40-50 mm. R...

Rolling - Binder: The layer thickness is 40-50 mm. Rolling is done in three stages : Initial Rolling By 80-100 kN smooth wheeled roller. Intermediate Rolling B

Verify the net allowable bearing pressure, A 1.8 m square column is founded...

A 1.8 m square column is founded at a depth of 1.8 m in sand, for which the accurate N-value is 24. The water table is at a detph of 2.7 m. Verify the net allowable bearing pres

Storm water, what are the roles of civil engineers in storm water managemen...

what are the roles of civil engineers in storm water management