序列间歇式活性污泥法处理毛纺厂废水的研究

A study on the treatment of wastewater from wool mill by sequencing batch reactor

采用序列间歇式活性污泥法处理毛纺厂废水。试验结果表明，经４ｈ曝气处理，进水ＣＯＤ为１９０～６５０ｍｇ／Ｌ时，出水ＣＯＤ始终低于１００ｍｇ／Ｌ，去除率大多在８０％～９０％之间，色度去除率大多在５０％以上，出水ＣＯＤ和色度均达到行业排放标准。还对较低ＣＯＤ浓度下序列间歇式活性污泥法的ＣＯＤ降解过程进行了研究，推导出一级反应动力学关系式Ｓｒ＝Ｓｏ（１－１０￣（－ｋ）１￣ｔ），并以试验数据进行了拟合，求解出动力学常数ｋ＿１和Ｓｏ。

In this paper,a research is made on the treatment of wastewater from wool mill by sequencing batch reactor (SBR).The experimental results show that when influent COD is 190￣ 650 mg/L, by aeration treatment for 4h, effluent COD is under 100mg/L during the experiment, the removal rates of COD and colority are 80% ￣90% and above 50% respectively; and the COD and colority of effluent can meet Chinese discharge standards of the wastewater.Kinetics of COD degradation under lower COD level is also researched and first-order reaction equation Sr=So (1-10￣(-k)1￣t) is developed on SBR process.The equation is simulated by experimental data and the kinetic constants k1 and So are found.