Font (1) If the BOD5 of a waste is 220.0 mg/L and the ultimate BOD is 320.0 mg/L, what is the rate constant?

Calculate the ultimate BOD of a waste that has a measured BOD5 of 24.6 mg·L-1, assuming a BOD rate coefficient (k) of 0.13 day-1.

Describe the different types of domestic solid waste.

A test bottle containing just seeded dilution water has its DO level drop by 1.0 mg/L in a five-day test. A 300-ml BOD bottle just filled with 15 ml of wastewater and the rest seeded dilution water (sometimes expressed as a dilution of 1:20) experiences a drop of 7.2 mg/L in the same period. What would be the five day BOD of the waste?

(a) Calculate the ultimate BOD of a waste that has a measured 5-day BOD of 20 mg/L, assuming a BOD rate coefficient of 0.15/day measured at 20 degrees C. (b) Estimate the rate coefficient if the temperature of the waste is raised to 30 degrees C. (c) What would be the BOD5 at 30 deg. C?

If the BOD4 of a waste is 200.0 mg/L and the ultimate BOD is 270.0 mg/L, what is the rate constant at 10⁰C.

From the following date, estimate the unit waste disposal rate per week for a residentialarea consisting of 1200 homes. The average occupancy is 4 persons per home. Theobservation location is a local transfer station that receives all of the wastes collected fordisposal. The observation period was one week.Data:Number of compactor truck loads = 10Average size of compactor truck = 20 yd3Number of flatbed loads = 6Average flatbed volume = 3 yd3Number of loads from individual residents’ private cars and trucks = 20 Estimatedaverage volume per domestic vehicle = 9 ft3

Describe the features of Municipal solid waste.

Determine the volume of waste

How many residences can be served? If we have a compactor truck which has a capacity of 30 yd3, each truck makes 3 trips/day 5 days a week, each residence has 3 people and each person produces 4lbs of waste. The density of the compacted waste is 425 lbs/yd3.