Preliminary study on degradation efficiency of expanded polystyrene by Pseudomona Flourescens

Abstract

The following work is a preliminary investigation that aimed to calculate the efficiency of Pseudomonas fluorescens in expanded polystyrene degradation, developing a biological treatment system; in order to reduce the time degradation and the environmental impacts by this residue. P. fluorescens bacteria initially the two means of liquid culture, meat broth (nutrient) and distilled water was inoculated; where three types of assemblies, aerobic, anaerobic and anaerobic to above ambient temperature worked. The selected material were 6 grams of a sheet and a plate of expanded polystyrene for food. As a result it was found that 67% of the samples the biodegradation process developed by the action of the bacterium P. fluorescens, the process being effective in assemblies whose temperature was maintained at an average of 28 ° C, developing a means of alkaline pH neutrally.