The Koc value for a contaminant is 6,000. Now we want to evaluate the adsorption capacity of the contaminant at a field site that has three distinguishable horizons. The average organic carbon content for the A, B, and C horizons is 0.9%, 0.12%, and 0.02%, respectively. Question: Predict Kd for each horizon, and discuss generally the speed at which the contaminant moves through each soil horizon.   *(Kd) = (foc) x (Koc)

Q: When a soil is submerged, the solid particles are subject to buoyancy caused by the water pressure…

A: Saturated as in context the voids are loaded up with the liquid say water, when we speak regarding…

Q: A3 If a soil has ESP= 50 and EC = 4.0 dS/m, what would be SAR (sodium adsorption ratio) and total…

A: Given data- Exchangeable sodium percentage (ESP) = 50 EC = 4.0 dS/m Gapon's Constant (KG) = 0.015

Q: What is the effect on the eddy formation if solar isolation is strong?

A: Introduction: The Hybrid Coordinate Ocean Model is used to investigate the impact of solar radiation…

Q: For a non-reactive contaminant with a Kd of 1.0, if it takes 30 days for water to move down 50 cm in…

A: Non-reactive contaminant with Kd = 1.0 Time to travel 50 cm in a soil = 30 days Bulk density of soil…

Q: a)           What are the forces that influence the separation of minerals of different densities in…

A: Gravity concentration is a method of separation of the minerals that depends upon the difference in…

Q: Q3. depend on the chemistry and the environment of which they were formed. Based on the statement…

A: Note- Hi! Thank you for the question, As per the honor code, we are allowed to answer three…

Q: Define the effect of a building collapse ?

A: Effects of a building collapse are; The collapse of a building has a great impact on victims which…

Q: A mineral particle of roughly spherical shape with a diameter of 0.02 mm was found to settle in a…

A: d1=0.02mm d2=0.01mm Vs1=3.6m/hr

Q: do sand dunes develop in coastal regions and on barrier islands? Through wind-driven saltation of…

A: Dunes are formed from sand blown inland from the beach by onshore winds, and trapped by debris or…

Q: As the energy of adsorption of a water molecule decreases, the ease with which water can move in the…

A: Soil- It is a mixture of organic and inorganic components, minerals, air, water, etc. It is formed…

Q: A total of 6.4 mg Cu2+ was extracted from 10g soil using 100 mL water extract. What are the…

A:

Q: Calculate phosphorus in units of kg/ha.

A: Given data: Density of soil(ρ)=1.3 g/cc Density of soil(ρ)=1.3*10^6 g/m^3 Density of soil(ρ)=1300…

Q: 8.7 A result of a 7-day BOD test performed on a sample from an oligotrophic lake was 10 mg/L. The…

A:

Q: identification 4. It is a process for determining the size range of particles present in a soil…

A: To find The Definitions of the various soil terminology.

Q: Problem 14: An underground hard rock mine operation employs a 8 -m3 skip with an 14-tonne capacity…

A:

Q: 8. Which statement below best characterizes the thermohaline drculation model? a. Cold fresh water…

A: Note:- Hi! Thank you for the question As per the honor code, We’ll answer the first question since…

Q: 3) A groundwater aquifer has been found to have a porosity of 0.3. The solid is dominated by quartz…

A: To determine the compounds in the aqueous phase of the groundwater aquifer, sorption isotherms can…

Q: hree properties of cation exchange in soils.

A: This question is from soil mechanics

Q: The current world phosphate reserve is estimated to be 71,000 million metric tons (50 billion of…

A: Current world phosphateAverage phosphorus content in marketPercent of phosphate rock consumed…

Q: The earth crust is composed of different rocks (95% igneous rock and 10% .(sedimentary and…

A: Answer - True

Q: Find the water content, void ratio, porosity, saturated density  and dry density of the soil-water…

A: ##### Find the water content, void ratio, porosity, saturated density  and dry density of the…

Q: A permeable layer is underlain by an impervious layer, as shown in Figure 7.30. With k = 5.2 × 10¬ª…

A: Area of cross sectionA=Hcosα×BA=3.8cos12×1mHydraulic…

Q: Compare the models of diffusion out of sediments with and without mass transfer resistances at the…

A: The sediment water interface is the boundary between the bottom or bed sediment and the overlying…

Q: A traverse line AB is being measured by a theodolite and substense bar. At station A, the horizontal…

A: Given: Traverse line AB,At station A, Height of instrument = 2.87 mHorizontal angle subtended = 3oAt…

Q: The five most abundant exchangeable cations in the soil are calcium (Ca2+), magnesium (Mg2+),…

A: The given statement is related with the cation exchange capacity:- It is the most important…

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: a- Sial and Sima b- Inner and outer core 2.4 Describe the chemical (minera a- Continental crust b-…

A: This question has been taken from Engineering Geology

Q: What would be the mass of the dried sample if the moisture content of the sample is 15% and the mass…

A: Given data in question  Water content Wet mass To find out  Mass of dry sample

Q: A permeable soll layer is underlain by an impervious layer in the figure shown. With coefficient of…

A: To determine the rate of seepage through soil for the given flow conditions.   Give, Coefficient of…

Q: 3 in. in. 2 in. i in. 2 in. i in. Prob. 9-66

A: The location y¯ of the Centroid for a beam having the cross section area is shown. The beam is…

Q: 100 m³ of sludge holds a moisture content of 95%. If its moisture content changes to 90%, the volume…

A: given- volume V1=100 m3moisture P1=95%moisture P2=90%

Q: Please indicate whether the following beams are statically determined, statically indeterminate, or…

A:

Q: a soil at a void natio The. hy draulic conducti vity of 0.047. cm/s. Esbimate the hydnaulic…

A: Given that,, Void ratio (e1 ) = 0.8 e2= 0.5 Hydraulic conductivity = k1 = 0.047cm/s  K2= ?

Q: The liquid limit and plastic limit of clay materials is 45% and 25% respectively, what is the…

A:

Q: A water sample having a pH of 10 at 25°C contains the following ions: Na* = 56 mg/1 Mg²+ = 24 mg/1…

A:

Q: Explain the term degree of saturation and how it is expressed in percent.

A: Degree of saturation:- It is the ratio of the volume of water to the volume of voids. It is denoted…

Q: The copper (Cu) content of soils ranges across about 4 orders of magnitude. The log(mg kg1) for one…

A: To find copper content

Q: Consider a saturated clay layer of thickness of 6 m on top of a layer of stiff sand. The clay has an…

A:

Q: L. What characteristics of the depositional environ- ment influence the properties of sedimentary…

A: 2. What characteristics of the depositional environ ment influence the properties of sedimentary…

Q: Describe about the Ice lens formation in a frozen soil.

A: Ice lenses are ice bodies produced when moisture accumulates in a localized area, diffused within…

Q: The cadmium (Cd) content of soils ranges across about 4 orders of magnitude. The log(mg kg-1) for…

A: Given:- The range of the cadmium content of soils = 4 orders of magnitude The log (mg kg-1) for one…

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

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.