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TREATMENTS

For remediating the groundwater in Alberta, multiple treatments are chosen to use in combination, check and see their characters and how they work, include their descriptions and block flow diagrams which can help you understand them better.

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The rawest groundwater will contain much solids like soils and little rocks, before air stripping is used, there will need to do sedimentation first for removing these solids. Sedimentation is a common way of treating the raw water, for solids that float and settle in the water, this method is often used. It will need sedimentation tanks when there presents large solids in the water. After it, the water will be gone through other treatments below.

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Sedimentation

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ION EXCHANGE

This method uses resins to absorb ions and displace them with harmless ions through the regenerant solution, ions like chloride, calcium, and magnesium, can be perfectly dealt by it.

AIR STRIPPING

Air stripping uses air to go through the contaminated groundwater or surface water, to clean the pollutant which is called "volatile organic compound (VOC)" , which includes many hydrocarbon type chemicals, like methane.

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MICROORGANISMS

Bioaugmentation is the process of adding selected strains/mixed cultures to wastewater reactors to improve the catabolism of specific compounds, like refractory organics or overall COD. It is a promising technique to solve practical problems in WWTPs and enhance removal efficiency.

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DISINFECTION

Biosparging consists of injecting pressurized air or gas into a contaminated zone in order to stimulate in situ aerobic biological activity. This remediation technique applies to dissolve and residual contamination in the saturated zone, and targets chemical compounds that can be biodegraded under aerobic conditions.

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