Daily cells for a landfill are operated so that the following conditions are maintained: thickness of daily cover= 0.2 m; slope (horizontal:vertical)= 3:1, working face for refuse= 30 m; height of refuse= 3 m; and volume of daily refuse= 1,800 m^3/day. The landfill is interested in reducing requirements for daily cover soil over its 20 year life and is considering three options (that is, have a lower Vs/Vr). Which option should be the best? Why?

Q: Which of the following is provide to more sufficient void space for microorganism's growth and air…

A: INTRODUCTION: Waste water treatment is done to remove waste material from the waste water after…

Q: 5. Landfill Leachate Management A pre-RCRA landfill was lined with 6 ft of clay at the bottom. The…

A: (a) amount of percolation precipitation  P=12.2 inEvapotranspiration ET=3.6 inRunoff R=Runoff…

Q: Explain how the compaction water content influences the shapes of SWCCs (e.g. air-entry value,…

A: Soil-Water Characteristics Curves (SWCC) : 1. The soil-water characteristic curve (SWCC) is defined…

Q: A 100-gram soil has the following amount adsorbed cations: 5 m.e. of H+; 4 m.e. of Ca2+; 3 m.e. of…

A:

Q: An inert chemical was applied to the soil surface 2 years ago. The Kd value of the chemical is 0.2…

A: Soil Profile Soil profile is the horizontal formation of soil according to their composition and…

Q: A fertilizer solution with 0.1M Na+ and 0.05M Ca2+ is applied over a long period of time to a soil.…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is your proposal to improve the following cases. Why? • 12 meter collapsible soil in the large…

A: Answer ) For the 12 meter collapsible soil in the large area outside the city, my proposal would be…

Q: Estimate the leaching requirement when electrical conductivity (EC) value of a saturated extract of…

A:

Q: With the aid of relevant equations explain what is meant by "settling ratio" b) Explain the…

A: Solution: a) With the aid of relevant equations explain what is meant by "settling ratio" The…

Q: Estimate the lea<hing requirement when electrical <onductivity (EC) valve of a saturated extract of…

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Q: Amount of organic suspended sediment is one of the chemical properties for irrigation water that…

A: The amount of organic suspended sediment is one of the chemical properties for irrigation water that…

Q: 1. Given the following information calculate VSS inert concentration in the influent of the waste…

A: To calculate the VSS inert concentration in the influent of the waste stream, we first need to…

Q: State FOUR (4) factors to be considered in landfill design

A: Landfill are the man made or natural low lying areas that are used for the deposition of municipal…

Q: A) Define the following: Hydrocompression, aeolian soil, soil active zone. B) Give the potential…

A: Solution 1-:Hydro compression- Union of the skeletal texture of soil blends upon their underlying…

Q: Determine the leaching requirement when the electrical conductivity of drainage water from soil was…

A:

Q: (a) Briefly discuss with a one example the important of soil compaction in civil engineering…

A: We have to asked  important of  Soil compaction with one example. Soil compaction is the degradation…

Q: 4.3 A landfill cover slope has the following characteristics: slope angle = 4(H):1(V), slope length…

A: Solution:- Given data:- Slope angle = 4(H):1(V) Slope length = 105 ft (32m) Tensile strength = 2200…

Q: -meter clay layer ( e= 0.96, Gs = 2.67, Cc = 0.308) is overlain with 3-meter-thick sand layer (e =…

A:

Q: A slow leak from an underground storage tank has contaminated both the soil and the groundwater as…

A: Given, Dimension of storage tank= 5x10x2 m Therefore, Volume =100m3 Density of soil, γ=1800kg/m3…

Q: The results from a compaction test are as follows: 130.0 128.0 126.0 124.0 122.0 120.0 118.0 116.0…

A: given compaction test result curve, X axis is water content and Y axis is dry unit weight.Water…

Q: A subsurface soil is contaminated by a spill of benzoic acid. The soil has a porosity (h ) of 35%, a…

A: This problem investigates the fate of benzoic acid spilled onto subsurface soil. We'll consider…

Q: Define the purpose of the sedimentation process. What types of particles are removed from the water…

A: Under the influence of gravity, sedimentation occurs when particles suspended in water settle out of…

Q: The potential flow into a landfill through a one-hectare (10,000 m2) cover comprised of a 0.5-m…

A: Area , permeability, head and length have been given and it has asked to determine potential flow.…

Q: 8. Estimate the velocity at which benzene moves through a saturated soil having the following…

A: Given Bulk dendity d=1.35 g/cm3 Porosity, n=0.45 FOC-is the organic carbon function. FOC=0.0058 KOC-…

Q: Q2: Answer the following. A) Define the following: Hydrocompression, aeolian soil, soil active zone.…

A: It is asked to define, 1. Hydro compression, aeolian soil, soil active zone 2. Problems associated…

Q: A road filling with 100% relative compaction will be made. The final volume of this filling in 100%…

A: The maximum dry density and the optimum water content of the soil is achieve by the compaction test,…

Q: Section 3: Aeration and Gas Transport a) How would you explain air-filled porosity for clayey soils…

A: Aeration refers to the process of supplying air or oxygen to a soil or other medium to improve its…

Q: 3.3 The following test results were obtained on a clayey soil that has been proposed for a landfill…

A:

Q: Ex 12.1: the maximum allowable soil salinity at root zone 9 mmhos/cm, find the leaching requirements…

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Q: Find the degree of Saturation at the above conditions ?

A: Given data- G=2.65

Q: The in situ moisture content of a soil is 18%, and the wet specific gravity is 17.5 kN/m3. The…

A: Let volume of soil from area A be VA       volume of soil from area B be VB       volume of soil…

Q: a the cap will be 116,000 cubic yards. The borrow material h oisture content of 18%, and is 100%…

A: According to given data  A clay borrow material will be used in the construction of a landfill cap.…

Q: The mass of oven dried sample of gravel is 300 grams. The absorption is 10% by weight. Determine the…

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Q: 1. River and surface water sources contain colloidal particles that have to be removed prior to use…

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Q: Write short note on the sedimentation process that leads to the formation of flame structures.

A: The process of sedimentation is simply the deposition of sediments on the surface of earth which…

Q: An amount of Sand weighs 500g in stock condition and 480 g in oven dry condition. If absorption…

A: solution Given the weigth of the samd in stock condition W=500gand in oven dry condition Wd=480g

Q: A sandy aquifer which underlies saturated stiff clay is under artesian water pressure.Water in the…

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Q: 5. A geotechnical engineering laboratory exercise was conducted to determine the suitability of a…

A: The solution for Question 5a is as follows. Given Data: The diameter of the standpipe is d=1 mm. The…

Q: A retaining wall with a vertical back is 8 m high. The volumetric weight of the 3 m ill surfaces is…

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Q: 8.3 A soil profile is shown in Figure 8.21. If a uniformly distributed load Ao is applied at the…

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.