Anaerobically treated effluent has MPN of total coliform as 106/100 mL. After chlorination, the MPN valu declines to 10²/100 mL. The percent removal (%R) and log removal (log R) of total coliform MPN is
Q: A tension test was performed on a specimen having an original diameter of 12.76 mm and a gage length…
A:
Q: thickness of M40 grade of concrete is supported over a subgrade aving modulus of subgrade reaction…
A: Given: Thickness of pavement = 25 cmGrade of concrete = M40Modulus of subgrade reaction = 8.0…
Q: What are the five steps of a preliminary investigation?
A: Preliminary investigation- Gathering information about the type of structure to be built and its…
Q: 2. Compute the reactions of the fixed support at K.
A: Given:- A beam system having different loading on different beams To find:- Reactions of the fixed…
Q: The city pool loses 1.0 inch of water every week due to evaporation. If the pool is 25 yards long…
A: Given that,ο The city pool loses 1.0 inch of water every week due to evaporation.ο The pool is 25…
Q: Q6: For the truss in the figure, use equilibrium considerations to draw the influence lines for the…
A: Answer ILD for member FE Pass a section through FE as shown below When unit load is at A Since unit…
Q: 2. The block on the incline surface weighs 150 lb and the block on the horizontal surface weighs 100…
A:
Q: Hi, thankyou for your help, I was wondering if I didn't have any of the given information, how would…
A:
Q: Problem 6: Inputs: ● ● ● ● a = 600 mm b = 400 mm c = 200 mm F = 100 N The line of action of the…
A: Given: a = 600mm b = 400mm c = 200mm F = 100N Required: Moment at point A considering different…
Q: Create a conclusion about basic spatial analysis- vector data analysis,
A: Spatial Analysis: The crux of a Geographical Information System consists of transformations,…
Q: 4. A two-component composite structure is vertically loaded through rigid end plates. What fraction…
A:
Q: Determine the moments of inertia about the y-axis of the circular area without and with the central…
A: To find moment of inertia about y axis
Q: Calculate equilibrium cant on an MG curve of 6 degree for an average speed of 50 km/hr. Also find…
A:
Q: Compute the effective stack height of a coal burning power plant with physical stack height of 200 m…
A:
Q: For a beam with the cross-section shown (w=98 mm and h = 128 mm), find the distance from the bottom…
A:
Q: Two vertical forces are applied to a simply supported beam, having the cross section shown. Assume…
A:
Q: A fillet weld of size 6mm used to weld a plate of width 75mm to gusset plate to transfer a factored…
A: Given data- Size of weld=6 mm, Width of plate=75 mm Factored load=120 kN, Site weld case, Fe410…
Q: For the beam shown in the following diagram, draw the shear force and bending moment diagrams. A 3…
A: Given: Required : Shear force and bending moment diagram
Q: Q-5 c, An undrained triaxial compression test is carried out on a saturated clay sample under a cell…
A: Given Undrained triaxial compression test on saturated clay sample- Cell pressure σc=σ3=50…
Q: The number of revolutions of a current meter in 40 s time was found to be 12 and 30 when the…
A: Given data- Current meter- Case-1 Velocity V=0.3 m/s, Number of revolutions Ns=12, Time t=40 s,…
Q: Traffic flow on a three-lane (one direction) freeway can be described by the Greenshields model. One…
A: Given:- The number of lanes = 3 One lane is closed for an emergency bridge repair for 2 hours The…
Q: The roller at A is moving upward with a velocity of UA = 4 ft/s and has an acceleration of a = 3…
A: Given: vA= 4ft/s, aA = 3ft/s2, sA = 4ft
Q: The following are given for a specimen of soil: M = 300 g, Msolid = 170 g, Gs = 2.72 and S = 70%.…
A:
Q: 3. For the given cross-section, determine the location of the centroid and the moments of inertia…
A: Answer Calculation of the location of the centroidal axis Location of Centroidal horizontal axis…
Q: FIG. P1.7 1.7 The column consists of a wooden post and a concrete footing, separated by a steel…
A:
Q: Given the Following beam in simple flexure, loaded at midspan: P Section Span, L 1 D) Sketch Shear…
A: As per Bartleby's guidelines we are supposed to answer only first question. Kindly repost other…
Q: The intensity of irrigation is 75% of cultivable area of 6000 ha. The discharge required for crops…
A: Given data- Cultivable area=6000 ha, Discharge in different weathers = 2.4 m3/s, 2.0 m3/s, 2.8 m3/s,…
Q: A 16 mm thick plate measuring 650 mm x 420 mm is used as a base plate for an ISHB 300 column…
A: Given information, Thickness = 16 mm Area of plate = 650 x 420 mm² Factored compressive force =…
Q: Compute the reactions of hinge and roller of eam AB. 2m 2m 2m 50 KN B A C cable D 50 KN-m F E 5 KN/m…
A:
Q: Determine the bending moment M in the beam at the point located L = 2.55 m to the left of point C.…
A: given to find moment ( M ) at distnace ( L = 2.55 m) to the point left of POINT C
Q: 36 кір 15 ft 15 A is Roller B is Pin c is Pin ft H 15ft G 1582 F 24 kip 15 ft Q/Determine the Force…
A:
Q: A bullet of mass 12 gm and cross sectional area 27 mm² and drag coefficient of 0.43 (assumed to be…
A:
Q: Through a very narrow gap of height 'h' a thin plate of large extent is pulled at a velocity V. On…
A:
Q: A rigid bar is supported by two coppe r rods and the gap between the alumi num rod and the bar is 1…
A:
Q: An open tank 1.82m square weighs 3.425 kN and contains 0.91m of water. It is acted by an unbalanced…
A:
Q: During a tension test, measurements for the applied load and the corresponding elongation are taken…
A: Shear stress is the force that tend to cause deformation of the material by sliding along the plane.…
Q: In an aquifer extending over 150 hectare, the water table was 20m below ground level. Over a period…
A:
Q: A flanged bolt coupling has ten 16-mm diameter steel bolts on 800 mm diameter bolt circle a nd six…
A: Given: Ten 16 mm diameter steel bolts on 800 mm diameter bolt circle Six 20 mm diameter steel bolts…
Q: Dimensional and Model Analysis Question 5: A turbine works at 20 m head and 500 rpm speed. Its 1:2…
A:
Q: 21 The volume coefficient of thermal expans ion is equal to two times the value of area coefficient…
A:
Q: Gravity Dam & Spillways The maximum height of a low gravity dam of elementary profile made of…
A: Given data- Low gravity dam- Relative density G=2.5, Safe allowable stress f = 3.87 MPa, Uplift…
Q: 4. For this oblique triangle, what is the length of side b given the following data: Angle B =…
A: Given: a = 125 ft c = 200 ft Angle B = 38o 15'
Q: Gravity Dam & Spillways The maximum height of a low gravity dam of elementary profile made of…
A:
Q: 1 Μ Figure 2 2 ↓ Δε
A:
Q: 6' 18 kips Bw = 2.4 kips/ft 10'- C 8'- D
A:
Q: Determine the magnitude of the vertical force Ay for the cantilever beam, where w = 10 kN/m, M = 103…
A: Given data, w = 10 kN/m M = 103 kNm L = 7 m
Q: A 50-cm x 30-cm x 20-cm block weighing W is to be moved at a constant velocity of 0.80 m/s on an…
A:
Q: Describe the Terms Below MC-704-1 Geogrid-2 Long term aging-3
A: 1. MC-704: For waterproofing and sealcoating pavement, MC-704 is a form of flexible asphalt…
Q: can you explain 3.1 slow with slep by step so the last part can make sense and how you came up with…
A: To determine:- e=γsat-γwγd-γsat+γw
Q: a tubular steel strut of length 1.2 m , inner diameter 100mm and outer diameter 180mm carries a…
A:
Step by step
Solved in 2 steps
- 3. Some industrial spent catalyst was tested as adsorbent material in a batch experiment. The data are reproduced in the following table. Determine the Final Conc., Ce (mg/L) 14.88 9.55 1.89 0.58 0.44 0.61 0.36 Uptake, q (mg/g) 8.80 8.41 7.33 6.15 5.68 4.92 3.79 a. Determine the coefficients for these data assuming a Freundlich isotherm applies. b. Determine the coefficients for these data assuming a Langmuir isotherm applies. c. Which isotherm model provides a better fit to the data? Explain.Chose the correct answer 1- The Unit measurement of suspended solids is ...A- kg 2- The Unit measurement of Turbidity is A- °C is B-m B-NTU C- mg/L C-K 3- The Unit measurement of pH www A-mg/L 4- The Unit measurement of alkalinity is .. 5-Non toxic metals includes 6-Dissolved materials size is lees than A- 10 mm D- none of above D- none of above D- none of above B- p.p.m C- g/m³ D- none of above A- m/sec B- m³/sec C- mg/L A-Chromium B- Mercury C- Calcium D- none of above B- 106, C-108 mm D- none of above mm 7- Public standards of Hardness in drinking water is A-500 mg/L B-50 mg/L C-100 mg/L D- none of above 8- Alkalinity species includes are A-HCO3 B-CO3 C- OH D-All of above ... 9- Dental cavities in children can prevented when Drinking water has Fluoride concentration of A- 0.1 mg/L B- 1 mg/L C- 10 mg/L D- none of above 10- Toxic metals are metals that harmful to humans even when exists in concentration of .. A- Small B-Large C-zero D- none of aboveDescribe the lime soda process for removing the hardness of water. Calculate the amountof lime and soda required for treatment of 10,000 liters of water containing the followingsalts in ppm.Al2(SO4)3 = 34.2 HCl = 7.3MgCl2= 19.0 NaCl= 58.5
- Please choose the correct answer for each question: 1. Activity of a gas in equilibrium with solution is ______? A. its partial pressure; B.1.0; C. its molar concentration; D. 0.0 2. During a sorption procedure, the substance transferred from the gas or liquid phase to the solid phase is called ______ A. sorbent; B. sorbate; C. partition; D. none of the above 3. When a chemical has a lower KOW, it is more ______ A. hydrophobic; B. hydrophilic; C. more absorbable; D. less absorbable 4. _____ occurs on the adsorbent surface A. Adsorption; B. Sorption; C. Absorption; D. Adsorption and absorption 5. _____ addresses the change in the amount of a substance of interest with time. A. The equilibrium approach; B. The kinetic approach; C. Henry’s Law; D. Freudlich isotherm equationA blend of crystals is to be separated into three fractions: a coarse one retained on a 8-mesh sieve, an intermediate one retained on a 14-mesh sieve, and a fine one passing through the 14-mesh sieve. The results from the screen analyses are listed in Table 3. Calculate the efficiency for each sieve in the fractionation of the crystals.d) Calculate total hardness in ppm of a solution of both 55 mg/L Al2(SO4)3 and 45 mg/L Mg(NO3)2.
- It is a kind of wastewater treatment where they use activated carbon to treat water. A. Sedimentation B. Coagulation| C. Filtration D. Activated Carbon Adsorption3.1 In order to soften 6 MGD of water contains Ca²= 120 mg/L and Mg²+ = 95 mg/L, to the practical solubility limit using split treatment and with desired magnesium concentration of 40 mg/L as CaCO3. we need to treat only: a) 5.5 MGD b) 4.5 MGD c) 3.2 MGD d) 4.9 MGD Continue in the back 3.2 If an ion exchange water softener has 0.2 m' of ion-exchange resin with an exchange capacity of 75 kg/m³. The occupants use 2500 gallon/day of water. If the water contains 250 mg/L of hardness as CaCO, and it is desired to soften it to 90 mg/L as CaCO), what is the time between regeneration? a) 15 days b) 14 days c) 12 days d) 10 days 3.3 You are about to design a sand filter that has sand with a particle diameter of 0.02 inch. During filtration, the depth of the filter is 0.75 ft and the porosity is 0.25. During backwash, the porosity is expected to be 0.60. If gravel and underdrain layer is 1.6 ft and free board is 2 ft, the total depth of the filter will be: a) 3.5 ft b) 5.0 ft c) 8.5 ft d) 9.5 ft…(a) (ii) Following chemical species were reported for water sample from a well. Concentration (milli equivalent)/L 15 15 05 30 12 18 8.8 Species Chloride (CL) Sulphate (SO2-) Carbonate (CO2) Bicarbonte (HCO3) Calcium (Ca²+) Magnesium (Mg2+) pH Find (i) The total hardness (in mg/L) as CaCO3 (ii) Alkalinity present in the water (in mg/L) as CaCO3.
- 3. Table below shows the concentration of dissolve oxygen for a BOD test, diluted by 100. Time (days) Diluted sample DO (mg/L) 7.95 1 3.75 2 3.45 2.75 2.15 1.8 i. Determine BOD5 Given the deoxygenation rate coefficient of 0.15 day-1, determine the ultimate BOD ii. iii. Based on answer from (i), identify class of the water sample based on INWQS guideline and propose suitable usage the water.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…1. 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…