UASB厌氧氨氧化工艺多指标正交试验与数学模拟  

Multi-index orthogonal test and mathematical simulation of UASB anaerobic ammonium oxidation process

作　　者：李亚峰[1] 张文文[1] 叶友林[1] Li Yafeng, Zhang Wenwen, Ye Youlin(School of Municipal and Environmental Engineering ,Shenyang Jianzhu University ,Shenyang 110168, Chin)

机构地区：[1]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《工业水处理》2018年第4期74-79,共6页Industrial Water Treatment

基　　金：国家自然科学基金项目(51108277);辽宁省教育厅科学研究项目(LJZ2016004)

摘　　要：通过正交试验对UASB厌氧氨氧化工艺的影响因素进行量化评价,探索该工艺的最优因素水平,并建立各因素与氨氮去除率的数学模型,对影响规律实现定量分析。正交试验结果表明,各因素的主次顺序为DO>HRT>葡萄糖>pH>NaHCO_3>温度。最佳反应条件:DO为0.1~0.3mg/L,葡萄糖为50mg/L,NaHCO_3为0.5g/L,pH为8,温度为26℃,HRT为9h。多因素模型得出氨氮去除率与各因素之间的数学方程式:F(x_1,x_2,x_3,x_4,x_5,x_6)=f_1(x_1)^(-2.2273)·f_2(x_2)^(1.1866)·f_3(x_3)^(-0.0012)·f_4(x_4)^(1.1092)·f_5(x_5)^(0.7161)·f_6(x_6)^(0.1578)。By orthogonal test,the quantitative evaluation on the influencing factors of UASB anaerobic ammonium oxidation process has been implemented,the optimum level of the process explored,the mathematical model of each factor and ammonia nitrogen removing rate established,and quantitative analysis of the influence law accomplished.The orthogonal test results show that the sequence of the factors is DO〉HRT〉glucose〉pH〉Na HCO3〉temperature.The optimum reaction conditions are as follows：DO is 0.1-0.3 mg/L,glucose 50 mg/L,sodium bicarbonate 0.5 g/L,pH 8,temperature 26℃,and HRT 9 h.The equation between the removing rate of ammonia nitrogen and various factors is obtained by the multi-factor model F（x1,x2,x3,x4,x5,x6）=f1（x1）^2.2273·f2（x2）^1.1866·f3（x3）^-0.0012·f4（x4）^1.1092·f5（x5）^0.7161·f6（x6）^0.1578.

关 键 词：厌氧氨氧化 氨氮废水 多指标评价 数学模型 

分 类 号：X703[环境科学与工程—环境工程]