SURFACTANT- ENHANCED BIOREMEDIATION OF PESTICIDE INDUSTRIAL WASTE WATER

Abstract

In the present investigation, some of selected phosphate• esters

1lr were prepared by the interaction of phosphoric acid compound with the corresponding fatty alcohols. Preparation of their ethanolamine • derivatives were carried out. Elemental analysis, FTIR spectra and MS spectra were used to prove the chemical structure ofthe new products. The prepared compounds were tested for enhancing the rate of biodegradation of Lannate and carbaryl pesticides by microorganism (pseudomonas putida). They can serve as nutrient for aerobic microorganism by increasing the bacterial growth. However, the microbial consortia had no inhibition effects for surfactant concentration (0.1%) and none of them were toxic to the bacterial growth. Sealed 250ml serum bottles are used for our experiment by different concentrations ofLannate and Carbaryl at room temperature. However, the addition of the prepared surfactants (0.1%) to cultures increased the bacterial growth. Then, the treatments were conducted to examme the biodegradation of pesticides m wastewater. Bioremediation results showed that the ethanolamine phosphate ester salts are more effective than the corresponding phosphate ester parent compounds.