What were some of the things you notice when you take a walk around your house during the day/night? (Were lights left on? T.V.’s and computers left on?)
Count the number of fluorescent light bulbs that are regularly used in your home. Determine the wattage of the most common lightbulb in your home. Write the values in the boxes below.
Multiply the number of lightbulbs by the average (Mean) . _____ Lightbulbs X _______Wattage -----> wattage.= ______Watts.
Divide the total watts by 1000 to find the power used in kiloWatts (kW).= ______KW. ------> Count the number of hours the lights are on in a day.=______ Hrs/Day.
3. Multiply the KW by the number of hours the lights are on during the day =____kWh/Day
(Electricity used in your classroom for lighting in one day)
4. Calculate the electricity used in your classroom for lighting for one month and one year:
____ kWh/Day X Days/Month =______kWh/Month
_____kWh/Day X Days/Year =______kWh/Year
5.Calculate your yearly emissions in CO2 equivalents. Calculate the yearly GHG emissions produced by your classroom lights.
_____kWh/ year X 0.180 kg CO2e/kWh = ______kg CO2e/ year
_____kg CO2e/year ÷ ____ # of people in your house = _____kg CO2e/family member/year
6. According to the UNEP, an average tree absorbs 12 kg of CO2 per year. Take the total GHG emissions produced by your home's lights for the year (answer in green) and divide by 12 to find out how many trees would be needed to balance the emissions created through the production of electricity required to light your home for a year.
=______ Trees
What did you learn about your classroom’s (or school’s) energy use when you completed the Lighting Assessment?
Did the number of trees needed to balance your lighting use surprise you? Why or why not?
How will having this information change your behaviour? What new questions do you now have?
Answers
Answer:
there are mixture of question in the above question so
ans of no. 1 question is that when we walk outside owe often see the lights and t.v remains on but due to lockdown everybody remains inside there home so there is a large misuse of electricity
Answer:
The operation of wastewater treatment plants results in direct emissions, from the biological processes, of greenhouse gases (GHG) such as carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O), as well as indirect emissions resulting from energy generation. In this study, three possible ways to reduce these emissions are discussed and analyzed: minimization through the change of operational conditions, treatment of the gaseous streams, and prevention by applying new configurations and processes to remove both organic matter and pollutants. In current WWTPs, to modify the operational conditions of existing units reveals itself as possibly the most economical way to decrease N2O and CO2 emissions without deterioration of effluent quality. Nowadays the treatment of the gaseous streams containing the GHG seems to be a not suitable option due to the high capital costs of systems involved to capture and clean them. The change of WWTP configuration by using microalgae or partial nitritation-Anammox processes to remove ammonia from wastewater, instead of conventional nitrification-denitrification processes, can significantly reduce the GHG emissions and the energy consumed. However, the area required in the case of microalgae systems and the current lack of information about stability of partial nitritation-Anammox processes operating in the main stream of the WWTP are factors to be considered.