Estimate the total theoretical amount of air that would be required under aerobic conditions to oxidize completely an organic waste with a chemical formula of C120H180O80N2? The final answer should be
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Estimate the total theoretical amount of air that would be required under aerobic conditions to oxidize completely an organic waste with a chemical formula of C120H180O80N2?
The final answer should be
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- Estimate the total theoretical amount of air that would be required under aerobic conditions to oxidize completely an organic waste with a chemical formula of C120H180O80N2.Choose the correct answer 200 g CO2 approximately takes up ____ L volume in air at 1 atm and 0oC? 4480; 100; C. 200; D. Undetermined Which of the following gases has the greatest contribution to the greenhouse effect on the Earth? A. Water vapor; B. CO2; C. CH4; D. O3 Based on what you have learned, which of the following can contribute(s) greenhouse gases? A. landfills; B. a deep lake with organic rich sediments; C. septic tanks; D. all of the above Which of the following gases is NOT a greenhouse gas? A. methane; B. carbon monoxide; C. hydrofluorocarbons; D. water vaporCalculate the ThOD of a 300 mg/L solution of CsH7O₂N.
- Calculate the total air required to oxidize 200g of solid waste if the chemical composition = C12H32O8A waste is being discharged into a river that has a temperature of 8°C. What fraction of the maximum oxygen consumption would be expected in four days if the 20°C BOD rate constant is 0.115 d''? How would the result be different if the river temperature was 22°C? You may assume that 0 is 1.047.A polluted air stream flowing at 12,000 acfm at 90 °F and 1 atm has a concentration of 500 ppm of ethylbenzene (C8H10). Pilot plant studies of the adsorption process indicate that 11 lb (net) of ethylbenzene will be adsorbed per 100 lb of carbon during normal everyday operations. Calculate the minimum amount of carbon needed m one bed for a two-hour run time. Give your answer In pounds.
- 7. A water treatment plant of 200 m³/ day uses an activated carbon, in columns, to reduce phenol from 130 (Co) to 10 (Ce) mg/L. The phenol adsorption isotherm using Pica is given below. The amount of Pica needed daily 350 300 250 A. The carbon needed is 160.7 kg/day B. The carbon needed is 1607 kg/day C. The carbon needed is 96.9 kg/day D. The carbon needed is 969 kg/day y = 94.869 x0.1971 200 150 100 50 80 120 160 200 240 280 320 360 400 Ce, mg/L 6/6ш 'w/x ob 0 40CHAPTER 7 WASTE HANDLING AND SEPARATION, STORAGE AND PROCESSING AT THE SOURCE Q4 Estimate the energy content of a solid waste sample with the composition below and what is the content on a dry basis and on ash free dry basis? Percent by mass Moisture content % Component Energy kJ/kg Food waste Paper Cardboard Plastics Garden trimming Wood Tin cans Total 15 45 10 10 10 5 5 100 Based on 100 kg sample of waste 70 6 5 2 60 20 3 4,650 16,750 16,300 32,600 6,500 18,600 700For a solution with a pH equal to 9.5, express the concentrations of H+ and OH- in units of meq/L and mg/L as CaCO3.
- Determine the air requirement expressed in kilograms per tonne of waste for the complete oxidation of waste composition of C50 H100 O40N (air requirement for the complete oxidation of 1 Kg of carbon =11.52Kg and Hydrogen =34.56kgIt is proposed to add activated carbon to treat a storm stream with a pollutant concentration of 5.1 mg/L. If the treatment plant has only 22 kg of activated carbon, how many liters of waste stream can be treated to achieve an equilibrium effluent concentration of 2.0 mg/L? Lab tests show that Freundlich isotherm coefficients for the activated carbon and the pollutant are K, = 0.09 L/kg and n = 2.8 for concentrations in g/L. Enter your final answer with 2 decimal places.4 7 l. V:). A docs.google.com 3. Consider the following with regards to burning of clay bricks. 1. The clay loses its plasticity 2. Carbonate minerals are decarbonated 3. Some of the carbonaceous matter is burnt 4. Clay mass is converted into glass like substance 5. Ferrous iron is oxidized to ferric form. The changes that occur during dehydration period are :* 1, 3, 5 1, 2, 4 O 1, 2, 3 O 2, 4, 5 4. A good soil for making bricks should contain (1) about 20% alumina (2) about 5.7% iron oxides (3) about 18% lime nodules (4) about 15% magnesia Of these statements 1 and 2 are correct 1 and 3 are correct 1, 3 and 4 are correct 2, 3 and 4 are correct