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Q: What is bioremediation?

A：Bioremediation refers broadly to the use of microbiological populations to participate in the biodegradation, transformation or sequestration of a given environmental pollutant. A prerequisite for this process are the microbes found in the soil or groundwater that consume the harmful organic materials and remove them from the environment. The microbes leave behind carbon dioxide and water as decomposition products.

 

In-situ bioremediation is in-place bioremediation, (aerobic and anaerobic) without excavation of contaminated soil. Excess oxygen is required for an accelerated in situ bioremediation; this means that there must be aerobic conditions in the area to be cleaned up. The microbes will grow, reproduce and consume an ever increasing amount of harmful organic materials under aerobic conditions and with the optimal addition of nutrients.

 

When bioremediation is used, it is therefore essential to maintain aerobic conditions. The location to be cleaned up must be supplied with oxygen over a long period. Magnesium peroxide is primarily used as the main oxygen source for in situ bioremediation. The reason for this is related to the specific properties of magnesium peroxide. Magnesium peroxide in powdered form is stable over a long period. The total O2 release period will last from three months to one year, however, this is a site specific issue that is primarily dependent on contaminant load and groundwater velocity. Field experience has indicated that at most hydrocarbon contaminated groundwater sites magnesium compound continues to release oxygen for a period of at least 6 months' time.

 

Magnesium peroxide is a non-toxic compound with no potential adverse effects to the aquifer. The by-products of magnesium peroxide's reaction with water are oxygen and ordinary magnesium hydroxide, which is virtually insoluble. Thus, magnesium liberates only oxygen into the aquifer. The magnesium hydroxide is insoluble and remains as an inert faction of the soil or in the application of filter socks, the magnesium hydroxide is contained within the cloth and is removed from the well. It should be noted that magnesium peroxide and magnesium hydroxide are safe for human consumption as they are both used as anti-acids in common drug store products.

A：Bioremediation refers broadly to the use of microbiological populations to participate in the biodegradation, transformation or sequestration of a given environmental pollutant. A prerequisite for this process are the microbes found in the soil or groundwater that consume the harmful organic materials and remove them from the environment. The microbes leave behind carbon dioxide and water as decomposition products.

 

In-situ bioremediation is in-place bioremediation, (aerobic and anaerobic) without excavation of contaminated soil. Excess oxygen is required for an accelerated in situ bioremediation; this means that there must be aerobic conditions in the area to be cleaned up. The microbes will grow, reproduce and consume an ever increasing amount of harmful organic materials under aerobic conditions and with the optimal addition of nutrients.

 

When bioremediation is used, it is therefore essential to maintain aerobic conditions. The location to be cleaned up must be supplied with oxygen over a long period. Magnesium peroxide is primarily used as the main oxygen source for in situ bioremediation. The reason for this is related to the specific properties of magnesium peroxide. Magnesium peroxide in powdered form is stable over a long period. The total O2 release period will last from three months to one year, however, this is a site specific issue that is primarily dependent on contaminant load and groundwater velocity. Field experience has indicated that at most hydrocarbon contaminated groundwater sites magnesium compound continues to release oxygen for a period of at least 6 months' time.

 

Magnesium peroxide is a non-toxic compound with no potential adverse effects to the aquifer. The by-products of magnesium peroxide's reaction with water are oxygen and ordinary magnesium hydroxide, which is virtually insoluble. Thus, magnesium liberates only oxygen into the aquifer. The magnesium hydroxide is insoluble and remains as an inert faction of the soil or in the application of filter socks, the magnesium hydroxide is contained within the cloth and is removed from the well. It should be noted that magnesium peroxide and magnesium hydroxide are safe for human consumption as they are both used as anti-acids in common drug store products.