Abstract:

The mixed chemical wastewater is difficult to be treated due to containing refractory biodegradable and inhibiting biological organism, highly concentrated NH_3-N and TP, as well as the great change in water quality. Therefore, a pilot-scale study has been made by using catalyzed iron internal electrolysis pretreatment combined with enhanced biological treatment process by suspended carrier to reconstruct the biological wastewater treatment process. The results indicate that the reformed process has remarkable removal rates of COD_Cr, NH_3-N and TP, simple process flowand lowrunning expense.

Key words: catalyzed iron internal electrolysis, suspended carrier, bioreactor, wastewater treatment

摘要：

混合化工废水含有难降解和对生物有抑制性的有机物, NH_3-N和TP浓度高、水质变化大, 因此较难处理。作者采用催化铁内电解预处理以及悬浮填料强化生物处理的技术路线对原污水处理工艺进行了改造方案的中试研究。结果表明, 改造后的工艺对COD_Cr、NH_3-N和TP的去除效果显著, 具有工艺流程简单、运行费用低等优点。

关键词: 催化铁内电解, 悬浮填料, 生物反应器, 废水处理

CLC Number: 

• X703.1