摘要：In this research, electrochemical system was adapted to decompose lightly polluted wastewater(LPW). The major pollutants of LPW were removed and its removal effects were investigated. Meanwhile,courses of the electrochemical reaction for nitrogen and phosphorus were discussed. Experimentsresults exhibited that the best removal rates of NH3-N and TN respectively were 100% and 90.9% afterdosing NaCl. In addition, under the condition of different electrolysis time, removal of pollution wasbetter than without NaCl, namely, the pollution was removed rapidly through electrolysis when otherexperimental conditions remained invariable. Meanwhile, the optimal operation condition could beconfirmed while the current density was 7.4mA/cm2, the cell voltage was 6 V, electrolysis time was 30min, the plate distance was 1cm and the ratios of concentration of NH4+ and Cl- were 1:3, respectively.Besides, the removal effects for nitrogenous compounds as the change of the chloride concentrationwere investigated, too. And the results exhibited that higher the chloride concentration in the wastewaterwas, the higher the removal rate for nitrogenous compounds was. The removal rates of nitrogenouscompounds increased with the increasing of cell voltage. Therefore, the influence of every factorcould be obtained through considering the power consumption of per ton wastewater treatment.
