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- Formulate a compost mixture of at consisting of least three ingredients using the Cornell Composting Spreadsheet that will satisfy the range of percent moisture content from 50-60% and the range of C:N ratio from 25 to 35. A composting bioreactor has a total capacity of 500 kg. The total weight of the mixture ranges from 400-500 kg. Example: Ingredient % Moisture % Carbon % Nitrogen Mass (Ibs.) Laying hens manure 69.0 48.0 8.0 100 Leaves, Loose and dry 15.0 48.6 0.9 65 Corn cobs 15.0 58.8 0.6 150 Water 100.0 0.0 0.0 150 Total 465 Calculated mixture moisture content: 54.0 Calculated mixture C/N ratio: 31.2The secondary metabolite whose effect is highly dependent upon volatility is:Explain with examples the main differences among various processes for the recovery of a product through downstream processing
- An activated sludge system operates at a flow rate (Q) of 400 m³/day (and an HRT of 0.129 day) with an incoming BOD (So) of 300 mg/L. Through pilot plant work, the kinetic constants for this system are determined to be Y = 0.5 kg SS/kg BOD, Ks = 200 mg/L, and 2/day. What mixed liquor concentration is necessary to attain a 95% BOD removal? What will the corresponding MCRT be? =Source: http://www.hrrsa.org/tours/virtual-tour Questions refer to the treatment of the solid waste. please solve 1 and 2. Why is it important to monitor and remove the majority of the nitrogen from the waste water? Why is it important to monitor and remove the majority of the phosphorus from the waste water?Explain this example of the following water quality serial dilution. Note the dilution factors and how you would calculate #’s from the incubated plates. ……A serial dilution yielded TNTC in the 1:1 plate and the 1:10 plate, 50 cfu’s in the 1:100 plate and 3 cfu’s in the 1:1000 plate . What is the concentration (CFU)/ml of the raw sample? Is water acceptable for potable or Recreational use? Explain. When do you use filtration rather than serial dilution
- Explain this example of the following water quality serial dilution. Note the dilution factors and how you would calculate #’s from the incubated plates. ……A serial dilution yielded TNTC in the 1:1 plate and the 1:10 plate, 10 cfu’s in the 1:100 plate and 1 cfu’s in the 1:1000 plate . What is the concentration (CFU)/ml of the raw sample?The American Heart Association and other health organizations have concluded that consumers should get their antioxidants from foods rather than supplements. They add that taking supplements may even be harmful. Supplement manufacturers claim that such statements are unfair and that their natural botanical extracts provide numerous health benefits. In fact, some suggest that beneficial effects can only be achieved by taking high-dose supplements. Given that there are currently no DRI defining the kinds of antioxidants or the daily quantities needed, how might you ensure a healthy intake of antioxidants? If you decide to take an antioxidant supplement, how might you research the product to determine its safety and effectiveness?What are the Similarities of the source reduction approach to waste management of Commercial and Domestic waste
- Source: http://www.hrrsa.org/tours/virtual-tour Questions refer to the treatment of the solid waste. Why is it important to monitor and remove the majority of the nitrogen from the waste water? Why is it important to monitor and remove the majority of the phosphorus from the waste water?What is the importance of regular solid waste collection from the point of view of environmentalhealth? Explain it brieflySuppose the pharmacists has 1.5 L of a 20X concentrate of an antibiotic and must dispense 250 mL of a 1X solution to customers. What volume of the 1X antibiotic can the pharmacist prepare? How many customers can receive the 1 X solution?