Your town\'s WWTP has yet another problem - its long-time operator has retired,
ID: 803281 • Letter: Y
Question
Your town's WWTP has yet another problem - its long-time operator has retired, and a new operator has taken over who isn't very efficient in his/her ability to facilitate denitrification The WWTP used to convert 99% of its influent nitrogen to dinitrogen gas (N_2) and only 1% of its influent nitrogen to nitrous oxide (N_2O); now. only 94% of influent nitrogen is converted to N_2 and 6% w converted to N_2O Assume the N_2O emitted per day is now 1 MT per day and that N_2O has a global warming potential 265 times that of carbon dioxide. How much has the carbon footprint of the WWTP increased because of this inefficient denitrification (in MTCE/day)?Explanation / Answer
The total greenhouse gases emissions caused by an individual or organisation which is expressed as CO2e.
Emission of N20 per day= 1 Mt
global warming potential=265
Annual N20 emissions=1*44/28*265 ( emission factor =44/28)
=1*1.5*265
=397.5 Mt/year
Earlier 1% converted to N20
Now 6% converted to N20
=1/6*397.5
=66.25Mt/year
66.25Mt/year carbon footprint has increased
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.