What is the total theoretical oxygen demand of the waste

Assignment Help Civil Engineering

Reference no: EM131253264

Organic carbon (C) and ammonia nitrogen (NH3) are oxidized to carbon dioxide (CO₂ ) and nitrate (NO₃ -) respectively, by bacteria that are naturally present in wastewater and in natural systems such as lakes and rivers. Both of these reactions consume oxygen and may cause a negative impact on water quality. The amount of oxygen theoretically required to consume a carbonaceous (ThOD) or nitrogenous (NOD) waste may be calculated according to the stoichiometry of the reactions as outlined in this chapter. The production of coke, a fuel produced from coal for use in steel mills, generates a waste gram rich in ammonia, phenol, and naphthalene. Calculate the NOD and ThOD of a waste containing 25 mg/L of ammonia-nitrogen (NH₃ -N), 50 ing/L of phenol (C₆ H₅ OH). and 150 mg/L of naphthalene (C₁₀ H₈ ). What is the total theoretical oxygen demand of the waste?

Reference no: EM131253264

Questions Cloud

How have human activities changed the landscape : Describe the major land biome where you live in some detail. How have human activities changed the landscape, and how has this affected native species? Include specific examples.

Roles and responsibilities of the operations manager : What are the roles and responsibilities of the operations manager? What other functional areas does the operations manager communicate with and why?

Research the different components of the marketing plan : What the marketing plan is and research the different components of the marketing plan. Also provide how the marketing plan is helpful to the organization.

Who had power in this organization : 1. Who had power in this organization? What type of power did Harry Walden have? 2. Do you think Roger played company politics well? If so, why didn't he get the international sales job?

What is the total theoretical oxygen demand of the waste : Calculate the NOD and ThOD of a waste containing 25 mg/L of ammonia-nitrogen (NH3 -N), 50 ing/L of phenol (C6 H5 OH). and 150 mg/L of naphthalene (C10 H8 ). What is the total theoretical oxygen demand of the waste?

Recommendation for managing down sizing exercise : Breifly explain porter notion of being '' stuck in the middle''. Is it always True? Explain the three disadvantage of being a first mover organizationWhat are some recommendation for managing down sizing exercise in an organization

Substitutes in consumption : If goods A and B are substitutes in consumption, a decrease in the price of good B will _________. If goods A and B are substitutes in production, a decrease in the price of good B will _________. If goods A and Z are complements in consumption, an i..

What is the equilibrium level of gdp : Consider the following model for the economy c=100+0.75(y-taxes) and I= 200, G= 50 and taxes+10+.16y. export=15 and imports= 5+.05y. what is the equilibrium level of GDP? Suppose the level of investment is reduced by 50. What is the equilibrium level..

Calculate the time necessary to reduce the population size : For a population of bacteria with an initial biomass of 100 mg/L and a kd = 0.4 day-1 , calculate the time necessary to reduce the population size to 10 mg/L.

User Account

All Pages