摘要： 采用呼吸速率法评价臭氧氧化对酵母废水可生化性的改变。以最大呼吸速率、微生物累计耗氧量等作为评价指标进行了分析，结果表明，在臭氧投加量分别为50、200、300、400 mg/L下，废水中微生物的最大呼吸速率和累计耗氧量均较原水有所提高，微生物最大呼吸速率较原水分别提高了15.0%、44.7%、54.8%、98.3%，累计耗氧量分别提高了10.6%、23.0%、24.0%、10.1%

关键词: 酵母废水, 臭氧氧化, 可生化性, 呼吸速率

Abstract: Respiration rate has been used for evaluating the change in biodegradability of yeast wastewater after ozonation. It is analyzed by using maximum respiratory rates, microbial accumulative oxygen consumptions, etc. as evaluation indexes. The results show that, both of maximum respiratory rates and accumulative oxygen consumptions of microbes in wastewater are increased, when the dosages of ozone are 50, 200, 300, and 400 mg/L, respectively. The maximum respiratory rates of microbes can be increased by 15.0%, 44.7%, 54.8% and 98.3%, respectively. The accumulative oxygen consumptions are increased by 10.6%, 23.0%, 24.0% and 10.1%, respectively.

Key words: yeast wastewater, ozone oxidation, biodegradability, respiration rate

中图分类号: 

• X703