Bioremediation with Biosurfactants
The Use of Rhamnolipid in Bioremediation
Rhamnolipid is found naturally and at virtually every hydrocarbon contamination site. Over time, they will be a factor in the natural remediation of the spill. The application of additional rhamnolipid will accelerate the breakdown and metabolism of rhamnolipid to minimize the long term effects of the spill and accelerate restoration to a natural state.
Rhamnolipid will bind up metal contamination. This binding, called complexation, is effective for a whole range of metals including cadmium, lead, and zinc using certain combinations of di-rhamnolipid and mono-rhamnolipid. Other metals that rhamnolipid potentially can treat are aluminum, copper, mercury, cobalt and others. Complexation makes the metal unavailable for other reactions and therefore minimizes the toxicity of the metal. The basic science behind rhamnolipid is that the rhamnolipid maintains a stronger bond with the meatal than the soil making it easier to flush the contamination.