Q 9. Design a Biogas system for cooking for a family of six members by determining the estimation of total gas required, amount of feedstock (or dung), required and the number of animals required to have feedstock of a given amount. Consider the following parameters for system design About 350-450 liters of biogas required per day per person for cooking (in engine about 450 liters/hp/hour of biogas is required) Average production of dung per animal per day: o Cow- 10 kg/day Bullock - 14 kg/day o Buffalo - 15 kg/day
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- 1) Identify the air pollutant you have chosen. a) What is the chemical composition of that pollutant? b) Is this air pollutant a primary or secondary pollutant? 2) Describe what is the primary source/cause of this air pollutant. Where does this air pollutant typically occur, i.e. does it occur in a specific geographic area or part of the atmosphere, or is it widespread? 3) Describe what effects do (or potentially do) this air pollutant have on the environment? Distinguish between a) physical effects on the environment/ecosystems and b) effects on living organisms. 4) Describe (be specific for each) what is being done to control this pollutant from the standpoint of a) laws/provisions of the Clean Air Act (or other laws) b) actual efforts to control its emissions.Which of the following approaches would be the most effective way to reduce greenhouse carbon dioxide? Increase waste deposition into the deep ocean Plant more environmentally-suitable plants Increase use of fuel sources that do not produce carbon dioxide as a by-product Decrease livestock agriculture.Environmentally conscious Susan has been told that a newelectric car will only generate 6 ounces of greenhouse gases (GHG) permile, but that a standard internal combustion car is double that at 12ounces per mile. However, the nature of electric cars is such that the new technology and electric batteries generate 30,000 lbs. of GHG to manu-facture and another 10,000 lbs. to recycle. A standard car generates only 14,000 lbs. of GHG to manufacture, and recycling with established tech-nology is only 1,000 lbs. Susan is interested in taking a systems approach that considers the life-cycle impact of her decision. How many miles mustshe drive the electric car for it to be the preferable decision in terms ofreducing greenhouse gases?
- The carbon footprint is the amount of GHG produced from an activity or a product. What would be the carbon footprint of a power plant producing electricity from coal. Calculate the GHG emission of CO2 per kWh of electricity produced. Assume the energy efficiency of the power plant as 38% and the heating value of coal as 4500 Kcal/Kg. Assume coal is 50% carbon. The answer you will get is also known as the emission factor for a coal power plant.After completing the GVL OER module - Energy Use and Sources and other related resources, discuss three of the following types of sustainable energy: wind, water, solar, geothermal, or biomass. Examine related resources and research, and then provide a more in-depth argument for the one type of energy production you believe will be most environmentally friendly, sustainable, and cost effective for our future.Q. find another carbon cycle diagram and compare it with the diagrams attached. include detailed analysis of the two diagrams attached. include an image of the new image of carbon cycle
- 1. describe key aspects of the atmosphere related to human well-being, such as oxygen's role as a limiting factor, the greenhouse effect, and the tropospheric ozone layer. 2. identify types of stationary and mobile anthropogenic air pollutants 3. Describe the hydrologic cycle in specific terms, especially related to sources of fresh drinking water. Also, provide examples of point and nonpoint sources if pollution 4. characterize the physical-chemical properties of environmental contaminants related to their behavior in the environment 5. assess the advantage and disadvantages of toxicology compared with epidemiology as sources of information about the human health effects of environmental chemicals 6. describe the assumptions associated with estimating absorbed and biological effective doses. 7. explain why risk assessors use a reference dose to quantify noncarcinogenic toxicity but use a cancer slope factor to qualify carcinogenic toxicity 8. identify characteristics that influence…Give four design features of natural gas pipeline.Given the parameters below:1. u(max) = 1.0/ h Ks = 10 uM2. u(max) = 0.7/h Ks = 2 uM) a. sketch the comparative Substrate Concentration vs.u(max) graphs for 1. b. sketch the comparative Substrate Concentration vs.u(max) graphs for 2. (answer a and b)
- Some analysts argue that in order to continue usingoil at the current rate, we must discover and add toglobal oil reserves the equivalent of two new SaudiArabian reserves every 7 years. Do you think this ispossible? If not, what effects might the failure to findsuch supplies have on your life and on the lives ofany children and grandchildren that you might eventually have?For scenario 2, below write the following 1.the process that the sets of measurements represent. 2.suitable equations of the process. 3.the calculated rates and 4.the resulting units for the process as expressed by your calculation. Scenario 2 Time,0 minutes:7.13mg/L O2 Time,20 minutes:13.39mg/L O2 Algal biomass:2.3g fresh massCalculate respiration and gross primary productivity for Lake Hugo? Results should be in mg O2 L-1day-1 If you choose to use Excel, please attach printed tables. Lake Start Time End Time Day/Night Starting O2 (mg/L) Ending O2 (mg/L) Hugo 7/7/2009 20:00 7/8/2009 5:30 Night 8.55 6.73 Hugo 7/8/2009 5:30 7/8/2009 20:30 Day 6.73 7.53 Hugo 7/8/2009 20:30 7/9/2009 5:30 Night 7.53 4.6 Hugo 7/9/2009 5:30 7/9/2009 20:40 Day 4.6 5.67 Hugo 7/9/2009 20:40 7/10/2009 5:30 Night 5.67 4.45 Hugo 7/10/2009 5:30 7/10/2009 20:10 Day 4.45 6.97 Hugo 7/10/2009 20:10 7/11/2009 4:00 Night 6.97 5.07