Research on the Treatment of Rural Domestic Wastewater with the Method of Trickling Filter

s [Objective]The reference for high-efficiency and low-energy consumption in the treatment of rural domestic wastewater was provided through the experiment.[Method]The advanced technology of new pattern of trickling filter and its operation indicator of trickling filter pool was tested for the improvement of nitrogen removal.[Results]The results showed that the removal rate of COD,NH3-N and TN by means of the new technology was 80.63%,81.7% and 84.7%,respectively,and the hydraulic loading should be controlled at 2.0 to 4.0 m3/(m2·d).The concentration of COD and NH3-N in rural domestic wastewater could be significantly reduced and the addition of anaerobic treating part could enhance the resistance of trickling filters and the stability of trickling filter bio-film.[Conclusion]The development of a new trickling filter process could significantly improve the effect on town sewage treatment.