Nobody downloaded yet

Contamination and remediation of soil - Assignment Example

Comments (0) Cite this document
Actual Site Remediation Selected Approach Directly Heated Thermal Desorption (DHTD) is the remediation approach that has been selected as the most effective remediation methodology for the Former Allied Feeds Site, Sydney, Australia. DHTD comply with all the anticipated regulatory requirements related to the emissions and destruction capabilities…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER97.3% of users find it useful
Contamination and remediation of soil
Read TextPreview

Extract of sample "Contamination and remediation of soil"

Download file to see previous pages Thermal desorption system The basic process of DHTD system has been illustrated in the figure 1 given below. The soil is dried through heating it directly with the help of a rotary dryer made up from a high temperature alloy. The rotary dryer comprises of a natural-gas-fired burner that has the capability to heat the feed material up to a temperature of about 550oC or 1,022oF. The rate of heating the feed soil by using the rotary dryer is primarily based upon the moisture present in the soil, the size distribution of the soil particles, and the discharge temperature of the soil. The processed-gas is conveyed to the emission control system from the discharge hood that receives the gas from the rotary dryer. The emission control system consists of the dual cyclones, evaporative cooler, thermal oxidizer, bag house, quench, draft fans with dual induction, supply system of sodium hydroxide, acid gas scrubber, stack, and continuous emissions monitoring system. The natural-gas-fired burner of the rotary dryer is basically fitted with the thermal oxidizer that functions between the temperature ranges of 930oC to 1000oC. The gas is cooled down by spraying an air atomized water stream at the top portion of the evaporative cooler. The bag house conveys the gas to a quench chamber and a packed scrubber through the induced draft fans. Then, in order to remove acid gases from the gas, a pH controlled water stream passes again through the scrubber before the stack discharges the gas to the atmosphere. A double tipping valve, steam hood, pug-mill, steam duct, stacking conveyor and shuttle conveyor are used in the construction of a cooling and handling system for the treated soil. The double tipping valve is used to discharge the soil from the rotary dryer to the pug-mill. The pug-mill also, receives the combined dust streams, through a series of screw conveyors, from the bag house and the dual cyclones. Then the soil is cooled and moisturized through spraying water in to the pug-mill. Subsequently, the shuttle conveyor passes the cooled and moisturized soil discharged from the pug-mill to a stacking conveyor that, in turn, passes it to the stockpile of the treated soil. The steam-duct transfers the stream discharged from the pug-mill in to the evaporative cooler. The stockpiles of 500 ton each hold the treated soil until they are analyzed for complying with the treatment criteria. Figure 1: The Overview of the DHTD System (Troxler et al. 2010)2. Project Schedule The table 1 given below presents the major milestones related to the implementation and licensing of the thermal treatment plant project. Table 1: Project Schedule (Troxler et al. 2010)2. Commissioning Trials The testing sequence proposed for the selected approach at the site included a process comprising of two stages. In the first stage, the plant processes the non-contaminated soil in order to ascertain that all of the electrical, mechanical, and control equipments are working properly. Then, in the second stage, the plant processes the above-average concentration of the contaminated material which takes about 6 to 7 hours. EPA observed, in the preliminary review of the EIS, that the testing sequence should not include a one-step change from ‘0’ to above average concentration of the contaminant material. Demonstrated performance is required by EPA throughout the range of soil contamination. EPA also, suggests that the ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Contamination and remediation of soil Assignment”, n.d.)
Contamination and remediation of soil Assignment. Retrieved from
(Contamination and Remediation of Soil Assignment)
Contamination and Remediation of Soil Assignment.
“Contamination and Remediation of Soil Assignment”, n.d.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Contamination and remediation of soil

Academic Remediation

...?Academic Remediation The acquisition of college or degree is of immense importance to every high school leaver. This is vital for enabling them to fit into the competitive job market. This, therefore, requires that all students should attain marks that will qualify them to get an admission to the available colleges. However, some students fail to attain the required level of academic preparedness and consequently the required marks for various reasons such as chronic sickness, poor attitude towards education, frequently disrupted studies, psychological problems among others. Such a scenario presents a threat to academic transition and advancement of such students. Academic remediation presents a formidable solution to the problem... of...
3 Pages(750 words)Essay

Contamination and Remediation

...of contamination at any Brownfield site plays a very important role. This ensures that we have a corresponding redevelopment or remediation strategy mapped out. In this research, we conduct an in-depth study on Brownfield development from an engineering view point by developing a methodology geared towards contaminant assessment and remediation. Finally we shall critically evaluate the application results of this methodology on a case study and draw inferences. Contamination Assessment and RemediationContaminants pose serious risk to the environment. In a Brownfield, some of contaminants include...
10 Pages(2500 words)Essay

Chloride Contamination on the Groundwater, Soil and Plants

...contaminated for a long period although it is unclear exactly how long the leak has been there. The company is also not able to ascertain the quantity of water that has leaked. The leak has happened in the pipes at the joints in most of the cases; either in the straight lengths or in the elbows. The quantity of leak that has happened could not be determined and the extent of damage caused to the soil is also unclear. The observation that the trees in the Farm have started wilting is the reason why the leak was discovered. The tree line that borders the area has been left dead over a period of time in 2005. By the time the damage was visible on the trees, there was substantial damage to the ground water...
36 Pages(9000 words)Coursework

Contamination and remediation

...Georgia. The extent of cleaning and the costs involved in the remediation process wholly depends upon the type, amount and area of contamination. The standards of cleanup adopted also influence the cleanup process. For example the clean up standards would be more stringent if the property or land is to be used for residential purposes and less strict if to be used for industrial purposes as the exposure to the contaminants would be quite less in this case. And the types of the contaminants too determine the cost while clean up process. For example if the groundwater of the site is found contaminated the cost of remediation process will...
10 Pages(2500 words)Essay

Contamination and Remediation

...are industrial and commercial properties abandoned because of issues of contamination and environmental quality. These properties have been passed over to the government for redevelopment. (source) One of these areas is 500 acres of land which used to be a petroleum refinery area. The former owner of the property, the Amoco Oil, together with the Sugar Creek Township would like to apply to the government for remediation of this property. They would like to redevelop this property and turn the 300 acres into a commercial and industrial site. They believe that the development of this property would bring back the value of the property, create job employment, and bring progress to the community. ...
10 Pages(2500 words)Essay


...Remediation Remediation is the idea that all new forms of media contain older forms of media; old media and new concepts are combined to get what is the new media (Bolter, 2000). It is also the act of splicing and combining different forms of media to create a new one; in this case, taking a motion picture, letting it meet with Facebook, therefore getting a Facebook news feed about the same topic. Remediation was created as it is the belief that every form of media has already been remediated, as remediation tends to be an act that cannot be avoided when something new is created, especially in these times when technology and opportunity are increasing...
4 Pages(1000 words)Essay

Contamination and Remediation

...include preliminary site assessment, detailed site assessment, remedial action plan, remediation of the site, and validation of the remediation process. In preliminary site assessment, inspection of the site is conducted in collaboration with the site management staff including owner of the land. Site history review is done by the inspection team and some samples of soil of the suspected site are also taken by the team in order to prepare an initial report which comes in use if symptoms of site contamination are found in the results of the report. Then in the next stage, comprehensive and detailed assessment of the collected soil samples...
12 Pages(3000 words)Essay

Remediation technologies

...and technological knowledge on how to tackle it. 2 Phytoremediation It is the use of green plants and Microbes to treat contaminated soils. Chemicals in top soil, surface water and underground water Years to decades The process is the cheapest since the process is natural 3 Bioremediation The use of Microbes in cleaning contaminated soils and water Oil products Few Months to years depends on nutrients area of spill and depth. Not as costly as other methods. 4 Pump and Treat It is the process of pumping contaminated underground water to the surface for treatment. Dissolved chemicals Years to decades Expensive due to the long duration...
2 Pages(500 words)Assignment

Soil machines

...Engineering and construction: Use of Soil Machines to Test Property of Soil of a Site By Presented to > Introduction Statham’s Close field at the Blacken Hurst campus of Nottingham Trent University was visited to evaluate the characteristic of that location’s soil. Samples were collected and tested to achieve this objective. Site location The site is located around 13.5 miles away from the main administrative buildings. Elevation of the ground’s site was measured to lie between 52m and 64m as shown on MAP1. To ensure more control, a trial pit of 60cm X 60cm X 60cm was excavated with coordinates of N 530 3.617 and W00 57.670. The day’s weather was very appealing as there was no rain, and this made the testing of the soil... to be done with...
3 Pages(750 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Assignment on topic Contamination and remediation of soil for FREE!

Contact Us