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Ethyl Lactate apply in bioremediation

2016-06-29

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The most serious soil pollution mainly is divided into two large, one is the organic pollutants, including petroleum pollutant type, such as pahs, pesticides, organochlorine, second is the heavy metal pollution, mainly contain the carcinogenic heavy metals such as copper, lead, chromium, excessive pollution.

 

Ethyl lactate application on soil pollution processing is mainly formed with other organic matter to a system of pollution repair, are now known to the application direction of basically has two: one is of vegetable oil and lactic acid ethyl ester compound to form a system, the main processing chlorinated organic matter in soil pollution and polycyclic aromatic hydrocarbons and other organic pollution.Second, ethyl lactate and organic chelating agent to form composite system, mainly used in situ leaching treatment of polycyclic aromatic hydrocarbons and heavy metals pollution.

 

1. Ethyl lactate with vegetable oil, emulsifier and some other additives according to certain proportion of eluent dealing with soil pollution.Mainly vegetable oil as the anaerobic reductive or auxiliary reagents repair organic matter (such as chlorinated organic solvent and polycyclic aromatic hydrocarbons) contaminated soil..

   

2. Ethyl lactate - EDDS/EDTA system of polycyclic aromatic hydrocarbons/heavy metals compound pollution of soil restoration.To solve the complex pollution of soil heavy metals and organic pollutants to fix the problem at the same time, introducing ethyl lactate soil restoration areas, the development of lactic acid ethyl ester - organic ligand (EDDS/EDTA) - compound leaching water system, the research on the heavy metals and polycyclic aromatic hydrocarbons and its effect, the mechanism of action and the composite soil bioremediation eluent recycling, on the basis of established a relatively economic and effective green soil leaching technology.