Some wastewater has a bod5 of 150 mgl the reaction rate is
Some wastewater has a BOD5 of 150 mg/L. The reaction rate is 0.23/d. What is the ultimate carbonaceous BOD?
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The initial DO of the mix is 9.0 mg/L. After 5 days, the DO is 4.0 mg/L. After a long period of time, the DO is 2.0 mg/L, and it no longer seems to be dropping. Assume nitrification has been inhibited so the only BOD being measured is carbonaceous
An electron is moving east in a uniform electric field of 1.53N/C directed to the west. What is the speed of the proton at point B
a TeflonTM-filled parallel-plate capacitor having a plate area of 200 cm2 and insulation thickness of 0.0400 mm, find the maximum voltage that can be applied to this capacitor
The settlement of a laboratory 10-cm thick consolidation specimen is 5 mm in 1 hour with a coefficient of consolidation of 0.005cm2/s. What will be the total settlement
Some wastewater has a BOD5 of 150 mg/L. The reaction rate is 0.23/d. What is the ultimate carbonaceous BOD
Cal’s Carpentry is considering outsourcing its accounts receivable function. Currently, Cal employs two full-time clerks and one part-time clerk to manage accounts receivables. Each full-time clerk has an annual salary of $36,000 plus fringe be
The saturation value of DO is 8.5 mg/L. The deoxygenation coefficient (kd) is 0.61/d, and the reaeration coefficient (kr) is 0.76/d. Assume complete and instantaneous mixing of the sewage and river. What is the minimum DO downstream
Determine the smallest horizontal force P required to move the wedge to the right. The coefficient of static friction at all contacting surfaces is mu_s = 0.6. Set theta = 14^\circ and F = 490N . Neglect the weight of the wedge.
Water is to be transported at a rate of 60,000 gallons/min in uniform flow in an open channel whose surface are lined with clay tile. The bottom slope is 0.0014. Determine the dimensions of the best cross section
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