What is ex situ remediation?
Ex situ remediation includes excavation of contaminated soil, which is then transported to a special landfill, where one of the appropriate forms of remediation is performed. Learn more in: Effects of Soil Contamination on the Selection of Remediation Method.
What is in situ and ex situ remediation?
In in situ bioremediation, contaminants are treated at the same site using biological systems. In ex situ bioremediation, contaminants are treated in some other place from the original site. This is the key difference between in situ and ex situ bioremediation.
What are the methods of ex situ bioremediation?
Ex-situ bioremediation includes bioreactors, where material is put in a large vessel and mixed in a controlled environment; landfarms, where material is laid out in an isolated area and mixed; and biopiles, where material is placed in aerated piles.
What are the advantages and disadvantages of ex situ and in situ remediation approaches?
Ex situ techniques can be faster, easier to control, and used to treat a wider range of contaminants and soil types than in situ techniques. There is more certainty about the uniformity of treatment because of the ability to homogenize, screen, and continuously mix the soil.
What is insitu and Exsitu soil?
In situ refers to the on-site and it is used to describe methods carried out in the original place. On the other hand, ex situ refers to the off-site and it is used to describe the methods carried out away from the original place.
What is in situ or on site process?
In situ (also referred to as insitu or in-situ) is a Latin phrase that is commonly used in the construction industry to mean ‘on site’, ‘in place’ or ‘in position’. In situ can also be used to refer to in situ testing, for example, tests carried out on site to determine the density or shear strength of soils.
What is difference between in situ and ex situ?
The main difference between in situ and ex situ is that the in situ refers to the original location whereas the ex situ refers to the off-site. In situ and ex situ are two methods used to describe different biological processes such as bioremediation, and conservation of organisms.
What is bio remediation Upsc?
Bioremediation: It can be defined as any process that uses microorganisms or their enzymes to remove and or neutralize contaminants within the environment to their original condition.
What best describes ex situ treatment?
Ex-situ bioremediation is a biological process in which excavated soil is placed in a lined above-ground treatment area and aerated following processing to enhance the degradation of organic contaminants by the indigenous microbial population.
What is insitu and Exsitu conservation?
35.7k+ likes. Hint:In-situ conservation means conserving all the living species, especially all the wild and endangered species, in their natural habitats and environment. Ex-situ conservation means conserving all the living species in the man-made / artful habitats that are similar to their natural living habitats.
What is the difference between in situ and ex situ bioremediation?
Ex-situ bioremediation: An alternative to in-situ, this process puts the tainted soil in above-ground treatment area and eliminates contaminants using the indigenous microbial population. The result is ideally water and carbon dioxide.
What is insitu soil?
In situ soil: When the soil is formed at its original position by the weathering of the parent rock, it is known as in situ soil like the black soil. Concept: Soil Erosion – Causes, Prevention and Conservation.
What’s the difference between in situ and ex situ remediation?
In situ bioremediation involves treating the contaminated material at the site, while ex situ involves the removal of the contaminated material to be treated elsewhere. What are the two types of bioremediation?
Do you have to do ex situ bioremediation?
However, they require excavation of soils, leading to increased costs and engineering for equipment, More risk of material handling/worker exposure conditions. Usually requires treatment of the contaminated soil before and, sometimes, after the actual bioremediation step. Ex situ techniques include: slurry & solid phase bioremediation:
How big is a biopile for ex situ remediation?
For deeper soils (i.e., more than 1 m below grade), soils are excavated and placed into a biopile for treatment. Biopiles typically consist of an impermeable base with leachate and vapour controls and can range in size from 1 m 3 to 10,000 m 3 depending on site objectives.
How does bioremediation work in soil remediation?
It is an important choice and key part of the soil and waste remediation process. Bioremediation of a contaminated site typically works in one of two ways. Ways are found to enhance the growth of whatever pollution-eating microbes might already be living at the contaminated site.
