氧化沟连续流间歇曝气生产性试验研究

Productive Experimental Research on Continuous Flow Intermittent Aeration in Oxidation Ditch

湖南省某污水处理厂进行了氧化沟连续流间歇曝气生产性试验,并已按连续流间歇曝气方式稳定运行2年多时间。相比连续曝气,采用连续流间歇曝气方式运行,氧化沟生物脱氮除磷效率有了显著提高,总氮(TN)和总磷(TP)的去除率均至少增加11%。节能效果显著,氧化沟节能42%,单位电耗减少约0.05 kW·h/m^(3)。

A sewage treatment plant in Hunan Province has carried out a productive experiment of continuous flow intermittent aeration in the oxidation ditch,and has been operating stably for more than 2 years in the way of continuous flow intermittent aeration.Compared with continuous aeration,the biological nitrogen and phosphorus removal efficiency of oxidation ditch has been significantly improved by using continuous flow intermittent aeration,and the removal rates of total nitrogen(TN)and total phosphorus(TP)have increased by at least 11%.The energy-saving effect is remarkable,the oxidation ditch saves 42%energy,and the unit power consumption is reduced by about 0.05 kW·h/m^(3).