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SBR和HBR两种反应器中N_2O产生量的研究

Keywords: HBR生物反应器,SBR生物反应器,N_2O产量

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Abstract:

为考察不同反应器类型对N_2O产生量的影响.试验采用好氧-缺氧SBR生物反应器和间歇式复合生物反应器HBR(填料填充率:30%,运行方式:瞬间进水—曝气360min—沉淀40min—排水20min),研究实际生活污水脱氮过程中N_2O的产生与释放情况,重点考察不同生物反应器类型对脱氮过程中N_2O产生量的影响.结果表明,SBR系统处理实际生活污水脱氮过程中N_2O主要产生于硝化阶段,不同生物反应器类型对脱氮过程中N_2O产生量有显著影响.SBR生物反应器和HBR生物反应器硝化过程N_2O产生量分别为0.76和1.48mg/L,SBR生物反应器硝化过程中N_2O产生量远低于HBR生物反应器N_2O产生量.

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