The Philippine Toxic and Hazardous Wastes Act places limits on the quantities of toxic substances that may be discharged into the sewerage system. Guidelines on hexavalent chromium (Cr6+) limits the discharge amount to just 0.50 mg/L. If an industry dumps hexavalent chromium in the form of potassium dichromate (K2Cr2O7), what is the maximum allowable concentration of hexavalent chromium in % by volume and moles per liter of sewage water? Molar Mass: Cr=52, K=39.1, O=16

Q: Consider the compressive strength data from the table below. Compressive Strength (in psi) of 80…

A: Given data,compressive strength data is given 168 178 117 104 213 186 96 174 155 173 215 145 184 188…

Q: For a trapezoidal channel (n=0.025, So = 0.002) with a bottom width of 15 m and a side slope of 2.5,…

A: Channel - Trapezoidal Manning's Coefficient, n = 0.025Bed slope, SO = 0.002Bottom width, B = 15m…

Q: The results of a particle size analysis of a soil are given in the following Table. No Atterberg…

A: To Find :

Q: displacemen steel member has a cross-sectional area of 300 mm². Use the method of virtual work

A:

Q: A rectangular shaped dam is 460m deep and 1000m wide. It holds fresh water. What is the total force…

A: Depth of the dam, width of the dam, Density of water, acceleration due to gravity,

Q: For a total intersection angle between back and forward tangents of 26° and a degree of curve of 3°,…

A:

Q: Determine the forces in all bars of the truss shown in the given figure. Indicate tension or…

A: Given TrussLoading 40, 30, 20 and 18 kNTo find out Member forces

Q: Type D (sulphate- resisting) cement major component is (choose one) a. C2S b. C3S C. C4AF d. C3A

A: Type D cement, also known as sulphate-resisting cement, is specially formulated to resist the…

Q: determin the x and y conponents of the reactions A and B. For reaction B the solution shoukd be in…

A: Determine the support reaction at A and B of the given beam. Note: At pin-C moment is zero.

Q: 10" 5" 5" 24 8" 10 # 8 bars 16" 3" 3" 3" 26" Normal Weight Concrete f'c = 7000 psi Gr. 75 steel…

A:

Q: y 0₁ Variable FR 02 F2 F3 5 13 0₁ = 12 0₂ F3 F₁ Values for the figure are given in the following…

A:

Q: Q3. A soil in its natural state is partially saturated having a water content of 17.5% and a void…

A:

Q: Describe the operation of a Summarize calculation in spatial analysis in ArcGIS

A: In ArcGIS, the "Summarize" operation in spatial analysis allows you to generate statistical…

Q: a) the beam deflection and slope at B, b) the beam slope at C, and c) the maximum beam deflection. V

A:

Q: For the same two-span continuous beam in Problem 1, determine the moment at C if point C settles 1.5…

A: Given that :-The two-span continuous beam has following specifications :I = 300 E = 29000…

Q: NOTE: This is a multi-part question. Once an answ Two members, each consisting of a straight and e…

A:

Q: I am creating a pumice stone bath mat, that will have a pumice stone large enough to easily smooth…

A: Pumice Stone: Choose a high-quality, large pumice stone that is comfortable for users to stand on…

Q: For Probs 2-4 determine the maximum combined loads using the recommended ASIC expressions for LRFD.

A: D = 24 psf Lr = 16 psf W = ± 42 psf We have to find out the maximum combined load using AISC…

Q: GIven the traverse below, complete the table below and determine the area of the traverse by DMD…

A: Given,To determine,the area of the traverse by DMD method.

Q: For the two-span continuous beam, determine the moment at point C due to the thermal load shown.…

A: Given that :-A two span-continuous beam has following specifications :Required that :-Calculate the…

Q: Sketch a shear force and bending moment diagram for the following beam. A is a roller, C is an…

A: Draw the shear force and bending moment diagram of the beam.

Q: Illustrative Problem 1 A pipe line gradually enlarges from 30 cm. in diameter at point A to 60 cm.…

A:

Q: You are approached by a local consulting firm and are asked to design a full-scale wastewater…

A: Given that :-A regional consulting business contacts you and requests your assistance in designing a…

Q: 1.For the loading and material information shown below, according to EC3, design and check the…

A: Beam span length (L) = 10 mBay width = 6 mSlab depth = 20 cm = 0.2 mPartitions = 0.75 Imposed load =…

Q: 2M A 2500 KN 2.m B G 2m F 2M D E ANALYZE FORCES TO FO TENSION OR COMPRESS PLEASE SHOW ALL L

A: We have a truss structure.We have to find the force in all the members -

Q: Prob. 2.9-10. At room temperature (70°F) and with no axial load (P = 0) the extensional strain of…

A: Room temperature, Heated temperature, Modulus of elasticity, Coefficient of thermal expansion, Cross…

Q: Water table drops by 3 m in an irrigable land of 50 hectares. if porosity and specific retention are…

A: Drop of water table = 3 marea of land = 50 heactaresPorosity = 0.30 Specific retention = 0.10To Find…

Q: Hydrostatic force on submerged bodies When a hydrometer as shown having a stem diameter of 0.30 in.…

A:

Q: ›) Determine the gross area and net areas for a 10 x 34 in. plate with a single line of standard…

A: Size of plate 10 x 3/4 inDiameter of bolt = 7/8 in

Q: Challenge Problem 5) A proposed earthen dam will contain 6,000,000 yd^3 of earth. Soil to be taken…

A:

Q: 3. A developer has applied for a construction permit for a building at the southeast corner of an…

A: The case stands for sight triangle for a left turn.Let d be the length of sight…

Q: 0.3 m. 120° 60° 0.25 m

A: Angle made by the force with the x-axis, Angle made by the force with the y-axis, Angle made by the…

Q: The floor system of a building consists of a 125 mm thick reinforced concrete slab resting on four…

A: Girder: - It is defined as the main supporting beam which carry vertical concentrated load.

Q: Problem 3) The water content of a 100% saturated soil is 35%, and the specific gravity of solids is…

A:

Q: For the sprinkler shown, find a. the torque required to hold it steady, and b. the rotation rate in…

A: Given that :-radius of the sprinkler (r) = 0.152 mDiameter of the nozzle () = 0.00635 mFlow rate (Q)…

Q: Compute the cantilever moment and determine the factor of safety, FS against overturning. Assume…

A: Given that :-The minimum plan dimension of the building is 10 m .Assume that :- Assume that the…

Q: 3.7 An embankment is shown in Figure P3.2. Given that B = 5m, H = 5m, m= 1.5, z = 3m, a 3m, b = 4m,…

A: an  embankment is as followsdensity =18kN/m3

Q: Two of the prevention methods to reduce a. Using mild steel Using inhibitors b. C. Reduce the…

A: An

Q: Question: A rectangular column is shown in the figure, assuming fc'=28Mpa, fy=345Mpa, and e=155mm,…

A: Given that :-A rectangular column is shown in the figure, assuming fc'=28Mpa,fy= 345Mpa,and e=  155…

Q: Ⓒ. Determine Shoar & Moment as a function of x, then draw P&M diagrams. Ls 1.8. on equation for V,…

A:

Q: There are some sources in materials which result in electrical resistivity, some of those sources…

A: The correct answer is:a. All options

Q: Determine the reactions at the supports for the structures shown

A:

Q: equilibrium for a static application. As shown, beam ABC is supported by the roller at A and pin at…

A: The given structure is a statically determinate beam. Using the equations of equilibrium

Q: Prob-1 Compute centroid of the section "Cy=?", and the moment of inertia of section [ Ix=?] respect…

A:

Q: Q.4) A machine part is subjected to four forces and three couple moments as shown. The part is to be…

A: Given:Required:Location of rivet hole somewhere along the horizontal line between A and B

Q: A railway curve of 1350 m radius is to be set ou to connect two tangents. If the design speed is 110…

A:

Q: Problem 10: Approximate Analysis for Lateral Loads (Cantilever Method)

A: The Cantilever Method is a structural engineering approach used to perform an approximate analysis…

Q: Problem 8: Approximate Analysis for Vertical Loads

A: Performing an approximate analysis for vertical loads is a common practice in structural engineering…

Q: Problem 3 The vertex is at station 12 + 200 and elevation 35 m. It is required to connect the two…

A: To use the equations for an unsymmetrical vertical parabolic curve. The general equation for the…

Q: Problem 1: Clogged Bathtub This bathtub cost a bundle, but even rich people occasionally have to…

A:

Landfills

The landfill is a site used for the disposal of waste materials. The landfill is a solid waste facility that is often known as a dumping ground. The image below shows a landfill site in Hawaii. Landfilling is the most ancient and common method used for the disposal of waste. For the landfill, a deep trench is constructed in an isolated place away from the city. The trench for landfills is designed properly after analyzing the total population and the waste generation per capita. The waste is dumped into the trench and after every layer of waste, a layer of soil is spread on the top of it.