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- Aluminum pieces inadvertently collect on the filter. a. If left on the filter, will the percent yield of the alum be reported as too high or as too low? Explain. b. If the aluminum pieces are detected on the filter, what steps would be used to remedy the observation? Explain.what kind of elements are considered to develop equipment for the vibro comaction and vibro replacementThe nutural frequancy for the system is equal to k rigid uniform bar of mass (m) P b L 1 3kb2+PL 1 3kb2 mL? 2n The answer is O The Answer is 3kb²–3PL 2n V None of All mL? The Answer is O the answer is 3kb2+3PL mL? 1 the Answer is
- Q2: Determine the resultant about the point O of the four forces and one couple which act on the plate shown in the Figure below. Note : for the resutant of 3osihys Forc es, You should computy the magnitude Kdirechion 30N 5 m- 3 ocos4s 25N 2 m 70 N-m 20N 40N o 301. It is an Engineering control where initial consideration regarding safety and health aspects must be made in this stage.a. Substitutionb. Proper Design and planningc. Isolationd. Modification in the process 2. Change in the process offers an ideal chance to concomitantly improve working conditions.a. Substitutionb. Proper Design and planningc. Isolationd. Modification in the process 3. Control method of changing from highly toxic chemicals to non-toxic one.a. Isolationb. Wet Methods c. Ventilationd. Substitution 4. Airborne dust hazards can be minimized or greatly reduced by applying water or other suitable liquids.a. Isolationb. Wet Methodsc. Ventilationd. Substitution 5. Is the process of supplying fresh air and/or removing contaminant laden air by natural or mechanical means to and from any space.a. Isolationb. Wet Methodsc. Ventilationd. SubstitutionThe nutural frequancy for the system is equal to Ek rigid uniform bar of mass (m) P b 1 3kb²+PL 2n mL² the Answer is 1 3kb2 –3PL mL²
- 1. A commercial laundry is consdiering constucing an ion exchange process to remove hardness from water used in laundering oerpations. The laundry uses 1000 m³/d of city water with Ca²+ at 4.5 meq/L and Mg²* at 2 meq/L. Their goal is to reduce total hardness (TH) to 1 meq/L. The softening resin has a TH capacity of 60 kg-TH/m³ of media with a recommended hydraulic loading rate of 0.4 m³/(m² min). Renegeration can be accomplihsed using 100 kg NaCl per m³ of ion exchange media in a 15% solution at a hydraulic loading rate of 0.04 m³/(m² min). The exchanger tanks available to the laundrey have a diamter of 1 m. What is the total bypass-water flow rate (m³/d)? What is the total daily resin volume required to soften the water (m³/d)? How many exchanger tanks are required for a one-day operation cycle? What is the resin bed depth (m) in each exchanger tank? What is the daily volume of NaCl regenation solution used per tank (m³/d)? What is the time period required for resin regeneration in…Determine reaction1. A commercial laundry is consdiering constucing an ion exchange process to remove hardness from water used in laundering oerpations. The laundry uses 1000 m/d of city water with Ca2+ at 4.5 meq/L and Mg2* at 2 meq/L. Their goal is to reduce total hardness (TH) to 1 meq/L. The softening resin has a TH capacity of 60 kg-TH/m of media with a recommended hydraulic loading rate of 0.4 m/(m2 min). Renegeration can be accomplihsed using 100 kg NaCl per m of ion exchange media in a 15% solution at a hydraulic loading rate of 0.04 m/(m² min). The exchanger tanks available to the laundrey have a diamter of 1 m. 1. What is the total bypass-water flow rate (m/d)? 2. What is the total daily resin volume required to soften the water (m³/d)? 3. How many exchanger tanks are required for a one-day operation cycle? 4. What is the resin bed depth (m) in each exchanger tank? 5. What is the daily volume of NaCl regenation solution used per tank (m/d)? 6. What is the time period required for resin…
- Lake Bonaventure is a lake fed by the Saint Croix River. The Acme smeting company discharges the heavy metal nickel into the lake. The easy way to model the concentration of nickel is to assume the lake is well mixed. It isn’t. The lake has a mean depth of 30m, and during the summer a surface epilimnion of 5m develops, which breaks down for the winter. (no calculations are required to answer the questions below) (A) Given what you know about the hydrology of lakes, what differences in concentration would there be if the smelter discharges at the surface or at a depth of 30m? (B) How would concentrations vary in the lake throughout the year? (C) What if you factor in the fact that the flow of the Saint Croix River is less during the winter?QUESTION 17 State the difference between a listed and a characteristic hazardous waste. List four characteristics for which a substance will be characterized as hazardous. T T T Arial 3 (12pt) v T-=-E -Waste engineering..civil,,