Considering the water balance equation, which processes are an input of water into the aquifer? A. infiltration B. potential recharge C. focused recharge D. percolation
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Q: USE THESE GIVEN VALUES: L1 = 218 N/m L2 = 34N/m L3 = 210 N/m L4 = 85 N/m M = 86 N/m
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- A manufacturing facility that manufactures printed circuit boards puts washwater that was used to wash solvents from the circuit boards into a septic tankwhich discharges into ground water. The wash water contains 7.34 mg/L of dissolved trichloroethylene (TCE). The daily rate of discharge is 13.6 m'/day. Theunderlying aquifer has an average linear groundwater velocity of 0.34 m/day.The discharge has been going on long enough so that steady state conditionshave been reached. Assuming no degradation of the TCE, what is the concentation at a monitoring well located 22 meters downgradient of the septic tankdischarge (* = 22 m, y = 0 m)? Assume a value for b.The infiltration capacity in basin is represented by Horton’s equation as fp=5.0 + e-5t where fp is in cm/h and t is in hours. Assuming the infiltration to take place at capacity rates in a storm of 100 minutes duration, estimate the depth of infiltration in the first two hour of the storm the second two hour of the stormA settling tank having a depth of 3.5m and surface area of 1000m^2 is used to remove particle of size 0.01mm and specific gravity of 2.6 . Calculate the removel percentage of the tank for the discharge of 7000m^3 per/day. Take viscosity of water as a 1.1×10^-3 kg/ms.
- (a) A groundwater borehole at USM engineering campus contains 3000 mg/L of TDS. The flow is 0.32 m3 /s. The design TDS concentration of the product water is below 400 mg/L. The net pressure is 40 atm. The membrane manufacturer provides that the membrane has a water flux rate coefficient of 2.2 x 10-6 s/m and a solute mass transfer rate of 1.5 x 10-6 m/s. Calculate the membrane area required for the RO system. (B) A water treatment at Nibong Tebal receiving a raw water contains a concentration of 0.5 µg/m3 atrazine from Kerian River. In order to comply with the drinking water quality guideline, the treatment plant should reduce the concentration of Atrazine to 0.1 µg/L. If the dosing of powdered activated carbon have been applied before the coagulation, calculate the minimal dose of PAC in mg/m3 .After conventional filtration, the filtered water with turbidity less than 0.5 NTU, pH =7 and T=5 C on a day when the peak hourly flow is 4.0 mgd (million gallon per day). After filtration, the water is chlorinated in a contact with hydraulic characteristics shown in Figure 11.20 b. What is the applied chlorine dose if free chlorine is used for disinfection?Solve the infiltration loss at t = 15 min in the exponential function boundary. Given data:fo = 300mm/hrfc = 60mm/hrassume k = 4.8/hr
- Solve the infiltration loss at t = 25 min in the linear function boundary. Given data:fo = 300mm/hrfc = 60mm/hrassume k = 4.8/hrThe area of the reservoir is 1.5 km2 with an open evaporation of 85 cm/year. Assume that the average evapotranspiration from the catchment is 70 cm/year,estimate the average annual discharge from the outlet of the reservoir in m3/second? (Kindly explain all your working step by step)An open cylindrical tank contains 1.2 m of salt water (sp.gr = 1.03), 0.9 m of gasoline (sp.gr = 0.70) and 1.2 m ofoil (sp.g r= 0.85).1. What is the pressure 1.5 m below the liquid surface?
- The 550-bed Atlanta Hospital has a small, activated sludge plant to treat wastewater from the hospital. The average daily hospital discharge is 1.50 m3 per day per bed, and the average soluble BOD5 after primary settling is 450 mg/L. The aeration tank effective liguid dimensions of 10 m x 10 m x 5 m. The plant operating parameters are as follows: MLVSS - 2,600 mg/L; MLSS - 1.20 (MLVSS); Settling sludge volume after 30 min. = 200 mL/L. The aeration time is nearly?The 550-bed Atlanta Hospital has a small, activated sludge plant to treat wastewater from the hospital. The average daily hospital discharge is 1.50 m3 per day per bed, and the average soluble BOD5 after primary settling is 450 mg/L. The aeration tank effective liguid dimensions of 10 m x 10 m x 5 m. The plant operating parameters are as follows: MLVSS - 2,600 mg/L; MLSS - 1.20 (MLVSS); Settling sludge volume after 30 min. = 200 mL/L. The F/M ratio is nearly?In a reservoir system with a very large accumulation volume for the ideal fluid (water),a) Since the diameter of the ABCDEF outlet pipe is D = 20 cm, the flow rate through the pipe,b) Calculate the velocity, velocity height, relative pressure and pressure heights in the ABCDEF outlet pipe.c) Draw the relative energy and piezometer lines of the system.d) If the relative evaporation pressure of water is pv = -98.5 kPa, what can be z maximum?e) Determine how much the diameter of the outlet pipe can be reduced at most without causing cavitation, with the relative evaporation pressure of water pv = -98.5 Pa and h = 6 m.f) Calculate the critical velocity value for cavitation. Please solve d-e-f questions. (figure in image)