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Terms in this set (57)

1. Compost/bio-pile
- this provides bugs and microorganisms with favour environments to be able to breakdown contaminants.

2. In situ Redox manipulation
- in many cases degradation is not occurring due to the lack of transfer of electrons which is the reason why biodegradation is not happening. So here we have a plume, and some pipes going underground that delivers electron donors and acceptors so the right conditions are available for these compounds to degrade and we can get clean consumable water.

3. Reactive barriers
- We start off with highly contaminated GW (point source of chlorinated solvents or BTEX). We then build a big trench/barrier that we we fill with material. This can be activated C so that the compound absorbs onto the material so what comes out of the barrier is clean water. There'll also be some micro-organisms or materials that will change the redox conditions that enables degradation. We can then create fencer barriers that will take advantage of the transfer from one phase to the other.

4. Soil vapour extraction
- these are often implemented for chlorinated solvents. These are very volatile and will easily transfer from water into the gaseous phase. At the bottom we have water and chlorinated solvents underneath former dry cleaners. Again, we can engineer this environment and makes some holes and pipes that will bubble some air that will make the chlorinate solvents move from water to the gaseous phase. Then we can recover it and make it interact with a solvent so it can stick to a solid phase and will now concentrate into this area where this now clean air will be released nearby. This os often used in Europe. It's basically moving compounds from one phase to another.