| abstract |
The invention belongs to the technical field of water treatment, and in particular relates to a method for strengthening sodium percarbonate (SPC)/Fe(II) system with nano-zero valent iron (nZVI) to remove chlorinated hydrocarbons in groundwater containing surfactants, comprising the following steps: (1) First add water to the reaction flask, and then add the pre-prepared chlorinated hydrocarbon and surfactant stock solution respectively to prepare the chlorinated hydrocarbon contaminated solution containing the surfactant to be treated, and then add FeSO 4 ยท7H 2 O, nZVI and SPC start to react; (2) The reaction flask is placed on a magnetic stirrer, and the rotating speed, reaction temperature and reaction time are controlled, and sampling is carried out at a given time point; In a brown extraction bottle of alkane, shake at room temperature with a vortex shaker to fully extract, and after standing, take the upper organic phase for gas chromatography analysis. The method of the invention has obvious degradation effect on trichloroethylene, and the degradation rate is above 80%. |