Effect of a rapid repair mechanism for nitrification capacity in the load impact wastewater treatment

International Symposium on Resource Exploration and Environmental Science

地球科学;生态环境科学

Hong, Wei^1 ; Zhang, Bing^2 ; Sun, Changdong^3 ; Tan, Xin^1 ; Liu, Bo^1 ; Zou, Xiaofeng^1

Key Laboratory of Shandong Academy of Environmental Science, Jinan, China^1

Shandong Changle Shikang Water Industry Co., Ltd., Weifang, China^2

Changle County Bureau of Housing and Urban Rural Development, Weifang, China^3

关键词: Experimental groups;    High impact;    Nitrifying bacteria;    Organic nutrients;    Pilot-scale equipment;    Repair mechanism;    Shock resistance;    Stable operation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/64/1/012080/pdf
DOI  :  10.1088/1755-1315/64/1/012080

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The nitrification capacity in the wastewater treatment is very important, and is particularly vulnerable to impacts. In this study, a rapid repair mechanism for nitrification was built and the result showing that, with the addition of exogenous nitrifying bacteria and organic nutrient, the nitrification capacity in the pilot scale equipment was restored in 20h, the concentration of NH3-N in discharge conforms to the one-class A permitted criterion (GB 18918-2002) and remain stable for long time, while the nitrification capacity in control group would not be fixed by itself in 196h. The repaired experimental group has the advantage of strong shock resistance and stable operation, and under the second high impact load, the concentration of NH3-N in effluent remain stable.