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好氧池溶解氧浓度对反硝化除磷产电系统的影响
Effect of Dissolved Oxygen Concentration on Denitrifying Phosphorus Removal and Electrogenesis Process
【摘要】 以模拟城市生活污水为对象,研究了不同的DO浓度对反硝化除磷产电系统的脱氮除磷及产电的影响。在好氧池DO分别为(1.01.5)、(2.02.5)、(4.04.5)mg/L的条件下,反硝化除磷产电系统出水COD平均浓度分别为17.60、12.39和14.07 mg/L,出水氨氮平均浓度分别为5.86、3.41和7.77 mg/L,出水PO43--P平均浓度分别为2.59、1.36和2.28 mg/L,平均开路电压和最大功率密度分别为0.509、0.557、0.542 V和45.94、61.81、55.64 m W/m2。系统的开路电压和欧姆内阻与DO浓度密切相关,最佳好氧池DO浓度为2.02.5 mg/L。
【Abstract】 The effect of different DO concentrations on the denitrifying phosphorus removal and electrogenesis process were investigated by using simulated sewage. When the DO concentrations were1. 0-1. 5 mg/L,2. 0-2. 5 mg/L and 4. 0-4. 5 mg/L in the aerobic reactor,the average concentrations of COD,ammonia nitrogen and PO43--P in the effluent were 17. 60,12. 39,14. 07 mg/L,5. 86,3. 41,7. 77 mg/L and 2. 59,1. 36,2. 28 mg/L,respectively. And the average open circuit voltage and maximum power density were 0. 509,0. 557,0. 542 V and 45. 94,61. 81,55. 64 m W/m2,respectively. The opencircuit voltage and ohmic resistance were closely related to DO concentration. The optimal DO concentration in the aerobic reactor was 2. 0-2. 5 mg/L.
【Key words】 denitrifying phosphorus removal and electrogenesis; aerobic reactor; dissolved oxygen;
- 【文献出处】 中国给水排水 ,China Water & Wastewater , 编辑部邮箱 ,2017年11期
- 【分类号】X799.3
- 【被引频次】3
- 【下载频次】139