Effectiveness Research On Ecological Strengthening System For The Removal Of Surfactant In The Sewage

With the development of people’s living standard, more and more surfactantproducts are accepted and used. Sewage with surfactants discharged into water bodiescan lead to deterioration of water environment, and even endanger the health of aquaticanimals and plants. Therefore, it is very important for us to analysis the removal ofsurfactant in sewage. Constructed Wetland and Eco-pond combined process wasproposed in this paper for the removal of surfactant in sewage water. the formerexperimental studies mainly focused on some conventional pollutants, such as COD,BOD, TN, TP, etc. for the removal of surfactants and influence factors of research isless, so the study on the removal rate of LAS in ecological intensive system have agreat significance on the treatment efficiency of the Constructed Wetland andEco-pond System.The paper explored the removal rate of pollutants in surfactant sewage. Throughexperimental analysis we found that the ecological aggrandizement system hasstronger ability to resist the water change when it entered into the stability period. Theremoval rate of LAS in ecological reinforcement system can reach94.83%, the effluentwater quality lowest can reach about0.35mg/L. the removal rate of CODCrcanamount to84%,and the effluent can be stable within20mg/L when conduct theexperiment in summer, the system of TP removal rate reached31%,and the effluentcontent can down to1mg/L.The paper analyzed the affection of surfactant removal rate of the LASconcentration change, the water inflow changes, dissolved oxygen changes as well asthe hydraulic retention time. Experiment data analysis shows that: when the hydraulicretention time is setted for5days and the dissolved oxygen kept in4.5to5.5mg/L, thesystem can reach better removal effect. Effluent concentration of LAS is0.07mg/L,and the system removal rate can up to95.9%, which can reach the standards of GB18918-2002.