%0 Journal Article
%T Combined Chemical-Biological Treatment of Effluents from Soil Remediation Processes by Surfactants Solutions Flushing
%A El bieta Hallmann
%A Renata Tomczak-Wandzel
%A Krystyna M drzycka
%J Ecological Chemistry and Engineering S
%D 2012
%I 
%R 10.2478/v10216-011-0001-3
%X In recent years combined chemical-biological wastewater treatment processes have received increasing interest. In the present study wastewater from soil remediation processes were treated by means of 1-step processes like Fenton, aerobic degradation and 2-steps combined method. The effluents resulting from soil remediation processes consist of high surfactant concentration solutions, mobilized oils and oil-in-water (o/w) emulsions. The effectiveness of wastewater treatment was evaluated by COD reduction and surfactant removal. The application of Fenton process alone showed around 80% of COD and surfactant removal, and in case of aerobic process only 60% of COD and 50% of surfactant removal was accomplished. However, the maximum COD reduction and surfactant removal from wastewater samples, above 90%, was obtained in aerobic degradation with Fenton process as pretreatment. Thus, the Fenton process could be effectively applied as a pretreatment step to improve the reduction of both COD and surfactant from wastewater resulting from soil remediation.
%K aerobic treatment
%K Fenton treatment
%K non-ionic surfactant
%K o/w emulsion
%K PAO6 oil
%K soil remediation
%U http://versita.metapress.com/content/y463w0463246l3kq/?p=c2c2e63b9302453989f53707f4f2b4ee&pi=0