BROWNFIELD REMEDIATION

Question 1

Pump and Treat

Answer 1

Common for addressing groundwater concerns. Contaminate water is removed from soil, and then treated disposed of

Question 2

Vitrification

Answer 2

Increases impermeability of soil by adding cement to soil. Soil can also be heated or melted to increase impermeability (Expensive option)

Question 3

Removal of Material

Answer 3

Least Common and most expensive option, the landowner maintains liability for the landfill

Question 4

Solidifcation

Answer 4

Removes water and changes soil chemically to reduce permeability and reduce the transportation of contaminant by percolation

Question 5

Soil Vapor Extraction

Answer 5

Vacuum pressure to remove VOC’s from soil through the use of vapor extraction wells dug into the solid. Containments are volatized and flushed into the air for treatment

Question 6

Air Sparging

Answer 6

Injecting of air into groundwater to flush out volatile containments, which are collected and treated by the soil vapor extraction

Question 7

Incineration

Answer 7

Controlled burning of soil or solids to convert, degrade or oxidize contaminents

Question 8

Bioremediation

Answer 8

microorganisms from plant matter are used to degrade hazardous organic compounds

Question 9

Phytoremediation

Answer 9

a specific form of bioremediation inch which selected plants consume or break down contaminents in soil, sediments or water
Other terms for this: “phytoextraction” or “phytodegradation”

Question 10

Soil Washing

Answer 10

water is used to flush out contaminants. This may involve removing soils and using mechanical agitation to clean the soil thoroughly

Question 11

Phytoremediation

Answer 11

a specific form of bioremediation inch which selected plants consume or break down contaminants in soil, sediments or water
Other terms for this: “phytoextraction” or “phytodegradation”

Question 12

Soil Washing

Answer 12

water is used to flush out contaminants. This may involve removing soils and using mechanical agitation to clean the soil thoroughly

Question 13

Solvent Extraction

Answer 13

similar method to soil washing, but solvents are used to remove contaminants in lieu of water

Question 14

Dechlorination

Answer 14

chemical treatment to remove chlorine atoms bonded to hazardous chemical. Hydrogen or hydroxide ions are used to detoxify soil material

Question 15

Passive Treatment Wells

Answer 15

Barriers are constructed of reactive materials and installed in an aquifer to promote a chemical reaction between the barrier and a contaminant in the groundwater

Question 16

Capped Sites

Answer 16

Caps are constructed of impermeable geotextiles
Helps isolate excavations by lining them to prevent contamination